Effective: August 1st, 2008
Accelerometer
ACH-01 (General Purpose)
-Motion (Theft) Sensors
-Shipping Damage
-Machinery Monitoring
-Motional Feedback for Speakers
-Appliance Monitoring
ACH04-08 (Multi-Axis)
-Disc Drive Shock Sensing
-Impact Switching
-Seismic
-Biomedical Monitoring
Vibration/Motion Film Sensor
DT Series (Unlaminated, Unshielded)
-Dynamic Strain Gages
-Acoustic Pickups
-Musical Instrument Triggers
-Tamper Detection
LDT Series (Laminated, Unshielded) & LDTC
-Antitheft Alarm
-Vending
• Dispensing Verification
• Coin Drop Counters
• Antitamper
• Penetration Panels
-Fan Failure
-Application Monitoring
-Washer Imbalance
-Microwave - Sound Pickup
-Dishwasher Spray Arm
-Water Flow Sensor
-Vacuum Soil Sensing
SDT Series (Unlaminated, Shielded)
-Musical Instrument Triggers
-Contact Microphones
Custom Sensors
-Textile Sensors
-Medical Monitoring
• Patient Bed Monitor
• Pulse Counter
• Fetal Heart Monitor
• Apnea Monitoring
• Anesthesia Monitor (Sleep
Disorder)
• Respitory Air Flow
• Sleep Disorder (REM)
• Pacemaker Activity Monitor
-Penetration/Antitamper Panels
• PCMCIA Cards
• Data Storage Devises
1
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297
Typical Applications for Piezo Film Sensors
Typical Applications for Piezo Film Sensors
Effective: August 1st, 2008
Audio/Acoustic
-Microphones
•Dive Helmets
•Gas Mask
•Contact
-Stethoscope
-Acoustic Pickups
-Flow Sensors
-Speakers
•Novelty Consumer
•Tweeters
•Pagers
Ultrasound (40 kHz & 80 KHz)
-Air-Ranging Proximity
-Medical Imaging Catheters
-Phased Array
-Acoustic Emission
-Level Sensors (Inkjet, toner)
-Robotic Tactile Sensors
-Variable Force Sensors
-Digitizers
Switch
SW100 Series
-Pinball Impact Switches
- Gaming Machine Switches
- Utility Meter Counters
Custom Switches
-Vector Switch/Joystick
- CMOS Circuit Wake-Up Switch
-Pacinko Game
-Electronic Piano Keys
-Impact Printer Timing Switch
-Sports Target (Impact)
-Snap Action Switches
-Beam Switch
Piezo Cable
-Step Switches
-Pedestrian Safety Mats (Fence & Buried)
-Perimeter Security
-Antitamper
Traffic Sensors
Series BL
-Vehicle Classification
-Weight-in-Motion
-Speed/Red Light Enforcement
-Airport Taxiway
-Security/Safety
2
2
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297
Effective: August 1st, 2008
Piezo film is available in a variety of
different film sizes and thicknesses.
These can be fabricated into simple
transducers, or for use as full size
sheets for applications such as speak-
ers.
Piezo Film is available in different
thicknesses. Thinner films (28 and 52
µm) are the most common, due to
their higher capacitance and good
mechanical qualities. Thicker film
(110 µm) is used where maximum
robustness is needed, or if the sensor
is being used in a thickness mode
(d33) application.
Metallization options include a com-
pliant silver ink as well as sputtered
metallization. The silver ink is best
for applications where mechanical
stress is being applied. Silver ink
lends itself to custom metallization
patterns for easy lead attachment.
Thin sputtered metallization is brit-
tle and used where signal to noise
requirements dictate very low mass
loading by the electrodes. Our stan-
dard sputtered metallization is 700D
of copper covered with 100Dof nick-
Metallized Piezo Film Sheets
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297
el change NiCu Alloy to Cu with Ni,
which has good conductivity and is
resistant to oxidation. Other metal-
lizations such as gold are available
on a custom basis with a set up fee.
For the sputtered metallized film,
there is no border.
These are only general rules, and a
discussion with our applications
engineers will help you to make the
best choice for your specific applica-
tion.
3
DIMENSIONS in INCHES (mm)
Description A B C D t
Metallization
Part
FilmElectrode FilmElectrode (μm) Number
28 μm piezo film 8.00 (203) 8.00 (190) 11.00 (280) 11.00 (267) 28 Cu-Ni 1-1003702-7
28 μm piezo film 8.00 (203) 7.50 (190) 5.50 (140) 5.00 (127) 40 Silver Ink 1-1004347-0
28 μm piezo film 8.00 (203) 7.50 (190) 11.00 (280) 10.50 (267) 40 Silver Ink 1-1004346-0
52 μm piezo film 8.00 (203) 8.00 (190) 11.00 (280) 11.00 (267) 52 Cu-Ni 2-1003702-7
52 μm piezo film 8.00 (203) 7.50 (190) 5.50 (140) 5.00 (127) 64 Silver Ink 2-1004347-0
52 μm piezo film 8.00 (203) 7.50 (190) 11.00 (280) 10.50 (267) 64 Silver Ink 2-1004346-0
110 μm piezo film 8.00 (203) 8.00 (190) 11.00 (280) 11.00 (267) 110 Cu-Ni 3-1003702-7
110 μm piezo film 8.00 (203) 7.50 (190) 5.50 (140) 5.00 (127) 122 Silver Ink 3-1004347-0
110 μm piezo film 8.00 (203) 7.50 (190) 11.00 (280) 10.50 (267) 122 Silver Ink 3-1004346-0
Please contact the factory for pricing and custom part quotations.
800.745.8008
Effective: August 1st, 2008
DT Series Elements
The DT series of piezo film sensors
elements are rectangular elements of
piezo film with silver ink screen print-
ed electrodes. They are available in a
variety of different sizes and thick-
nesses.
The DT film element produces more
than 10 millivolts per microstrain,
about 60 dB higher than the voltage
output of a foil strain gage. The
capacitance is proportional to the
area and inversely proportional to
the thickness of the element.
The DT series sensors are the simplest
form of piezo film sensors, used pri-
marily as dynamic strain gages and
contact microphones for vibration or
impact detection. These are available
without any leads for those applica-
tions where the customer wants to
make his own lead attachment. They
can be readily adhered to a surface
with double-sided tape or epoxy.
Lead attachment can be achieved by
compressive clamping, crimps, eye-
lets, conductive epoxy or low temper-
ature solders.
Metallization
D
C
t
A
B
Piezo Film
Protective Coating
t
DT elements are supplied with a thin
urethane coating over the active sen-
sor area; the lead attachment legs are
free of the insulating urethane coat-
ing.
DIMENSIONS in INCHES (mm)
Description A B C D t CapPart
FilmElectrode FilmElectrode (μm) (nF) Number
DT1-028K .64 (16) .484 (12) 1.63 (41) 1.19 (30) 40 1.38 1-1002608-0
DT1-052K .64 (16) .484 (12) 1.63 (41) 1.19 (30) 64 .740 2-1002608-0
DT2-028K .64 (16) .484 (12) 2.86 (73) 2.42 (62) 40 2.78 1-1002145-0
DT2-052K .64 (16) .484 (12) 2.86 (73) 2.42 (62) 64 1.44 2-1002145-0
DT4-028K .86 (22) .740 (19) 6.72 (171) 6.13 (156) 40 11.00 1-1002149-0
DT4-052K .86 (22) .740 (19) 6.72 (171) 6.13 (156) 64 5.70 2-1002149-0
4
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297
Please contact the factory for pricing and custom part quotations.
800.745.8008
Effective: August 1st, 2008
The DT series of piezo film sensors
elements are rectangular elements
of piezo film with silver ink screen
printed electrodes. They are avail-
able in a variety of different sizes
and thicknesses.
Lead attachment is accomplished
using a riveted lug going to 12” (300
mm) of 28 AWG wire.
The DT film element produces more
then 10 millivolts per micro-strain.
The capacitance is proportional to
the area and inversely proportional
to the thickness of the element.
The DT elements are supplied with
a thin urethane coating over the
active electrode area to prevent
oxidation to the top surface of the
silver ink.
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297 5
DIMENSIONS in INCHES (mm)
DT Series Elements with Lead Attachment
Description A B C D t CapPart
FilmElectrode FilmElectrode (μm) (nF) Number
DT1-028K/L w/rivets .64 (16) .484 (12) 1.63 (41) 1.19 (30) 40 1.38 1-1002908-0
DT1-052K/L w/rivets .64 (16) .484 (12) 1.63 (41) 1.19 (30) 64 .740 2-1002908-0
DT2-028K/L w/rivets .64 (16) .484 (12) 2.86 (73) 2.42 (62) 40 2.78 1-1003744-0
DT2-052K/L w/rivets .64 (16) .484 (12) 2.86 (73) 2.42 (62) 64 1.44 2-1003744-0
DT4-028K/L w/rivets .86 (22) .740 (19) 6.72 (171) 6.13 (156) 40 11.00 1-1002150-0
DT4-052K/L w/rivets .86 (22) .740 (19) 6.72 (171) 6.13 (156) 64 5.70 2-1002150-0
Please contact the factory for pricing and custom part quotations.
800.745.8008
Effective: August 1st, 2008
LDT Series Elements
with Lead Attachment and Lamination
The ‘L’ in LDT stands for ‘laminated’ sensor.
Typically, a 0.005” (125µm) polyester layer is
laminated to a 28 µm or 52µm piezo film
element. When used in a ‘bending’ mode,
laminated film elements develop much
higher voltage output when flexed than a
non-laminated DT elements series. The neu-
tral axis is in the laminate instead of in the
film so the film is strained more when
flexed.
The capacitance is proportional to the area
and inversely proportional to the thickness
of the element.
Piezo film sensors LDT elements are avail-
able in a variety of lead attachment
options. For significantly increased sensitivi-
ty, the LDTM-028K (M-Mass) combines an
LDT0-028K form factor with the addition of
a 0.72 gram round mass. The LDT1, 2 and 4
have 12” of 26 gauge twisted pair wire.
The LDT0-028K and LDTM-028K with solder
tabs can be soldered directly to a PCB with
a reasonable level of care. Piezo
film cannot withstand high tem-
peratures (>80°C), and therefore
soldering of the pins to a PCB
must be done quickly. A heatsink
clamped to the interface area
between the film and the crimps
will take the heat away from the
film. Pre-tin the PCB and then
quickly solder the sensor to the
board. Do not allow the solder-
ing iron to touch the film, and do
not use a dwell time of over 5
seconds on the pins. Low temper-
ature solders can also be used.
Applications for this include
beam-type vibration sensors for
vehicle alarms and solid state
switches for counters and
momentary closure type switch-
es.
For tightly tolerance sensi-
tivity requirements, please con-
sult MEAS Sensors for techniques
used to control variations of
boundary conditions in produc-
tion.
DIMENSIONS in INCHES (mm)
Description A B C D t CapPart
FilmElectrode FilmElectrode (μm) (nF) Number
LDT0-028K/L w/crimps .520 (13) .400 (10) .980 (25) .580 (14.70) 205 .500 1002794
LDT1-028K/L w/rivets .640 (16) .484 (12) 1.63 (41) 1.19 (30.17) 205 1.38 1-1002910-0
LDT2-028K/L w/rivets .640 (16) .484 (12) 2.86 (72) 2.42(61.47) 205 2.78 1-1003745-0
LDT4-028K/L w/rivets .860 (21) .740 (18) 6.72 (170) 6.13 (155.70) 205 11.0 1-1002405-0
LDTM-028K/L w/crimps .520 (13) .400 (10) .980 (25) .580 (14.70) 205 .420 1005447-1
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297 6
(LDT Series with rivets & wire leads)
(LDTM)
(LDTO-028K with crimped-on solder tabs)
Please contact the factory for pricing and custom part quotations.
800.745.8008
Effective: August 1st, 2008
The “F” in FDT Series stands for ‘Flexible Leads’.
These are rectangle elements of piezo film with
silver ink screen printed electrodes. Rather than
making the lead attachment near the sensor,
the piezo polymer tail extends from the active
sensor area as flex circuit material with offset
traces. This gives a very flat, flexible lead, with a
connector at the end.
The FDT elements are available in a variety of
different sizes and thicknesses. They are avail-
able without a laminate (FDT), with a laminated
(0.005” mylar) on one side (FLDT) or with tape
release layer adhesive (FDT with adh) in the sen-
sor area.
The connector pins on the FDT sensors can be
directly soldered to a PCB with a reasonable
level of care. This component cannot withstand
high temperatures (> 80°C), and therefore
coldering of the pins to a PCB must be done
quickly. A heatsink clamped to the interface
area between the film and the crimps will take
the heat away from the film. Pre-tin the pins
and then quickly solder them to the board. Do
not allow the soldering iron to touch the film,
and do not use a dwell time of over 5 seconds
on the pins. Low temperature solder can also be
used.
FDT Series Elements
with Lead Attachment
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DIMENSIONS in INCHES (mm)
Description A B C D t CapPart
FilmElectrode FilmElectrode (μm) (nF) Number
FDT1-028K .620 (16) .485 (12) 9.25 1.16 (30) 55 1.37 1-1002785-1
[235]
FDT1-052K .620 (16) .485 (12) 9.25 1.16 (30) 85 .740 2-1002785-1
[235]
FLDT1-028K .620 (16) .485 (12) 9.25 1.16 (30) 205 1.37 1-1002786-1
[235]
FLDT1-052K .620 (16) .485 (12) 9.25 1.16 (30) 230 .740 2-1002786-1
[235]
FLDT1-028K w/adh-F .650 (17) .485 (12) 5.51 1.18 (30) 125 1.37 1001777
[140]
7
Please contact the factory for pricing and custom part quotations.
800.745.8008
Effective: August 1st, 2008
SDT Shielded Piezo Sensors Element
with Shielded Cable
The ‘S’ in SDT Series stands for
‘Shielded Sensor’. SDT1 piezo film
sensors consist of a rectangular ele-
ment of piezo film together with a
molded plastic housing and 18” of
coaxial cable. The film element,
screen printed with silver ink, is fold-
ed over on itself, given a self-shield-
ing of the transducer area. This is
important in applications in high EMI
environments.
The SDT1 can be adhered to other
surfaces using double sided adhesives,
epoxy or cyanoacrylate (super-glue).
Care should be taken if the sensor is
to be removed, as the double-side
adhesive can peel the metallization
from the film.
When adhered to a surface in this
manner, the SDT1 is an excellent con-
tact microphone or dynamic strain
gage. The output from the SDT1 can
input directly to an oscilloscope or a
signal analyzer.
B
t
D
C
A
Folded Over
Construction
Protective
Coating
Coax Cable
DIMENSIONS in INCHES (mm)
Description A B C D t CapPart
FilmElectrode FilmElectrode (μm) (nF) Number
SDT1-028K .640 (16) .520 (13) 1.64 (41) 1.18 (30) 75 2.78 1-1000288-0
8
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Please contact the factory for pricing and custom part quotations.
800.745.8008
Effective: August 1st, 2008
2
Piezo film’s capabilities to generate a
high voltage output under bending
strain, combined with its rugged form
factor, make it an ideal candidate for
solid state impact switches. Rather than
using a switch contact closure, the piezo
film generates a pulse which is detected
by electronics. Although many of the
DT’s, LDT’s and FLDT’s supplied by MEAS
are used for switch applications, it is
sometimes convenient to have a switch
with integrated electronics.
The SW100 is an ideal configuration for
impact detection and momentary switch
applications. A direct contact force on the
tip of the stainless steel cantilever beam
of the SW100 induces strain on the lami-
nated Piezo Film Sensor (PFS) element.
With dynamic strain, the PFS element
generates an output that activates a
built-in, normally-open circuit. Once acti-
vated, the circuit resembles the closure of
Piezo Film Solid State Switches
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297
a contact switch, but without the inherent discontinuity that contact
points exhibit because of corrosion, pitting and bouncing.
Thus the SW100 provides a single digital pulse that is ideal for trigger-
ing digital circuits and signal processing. The imperviousness, elasticity
and reliability of the PFS element, along with the noise rejection char-
acteristics of the circuit, combine to provide the SW100 with features
that suit applications demanding consistent, reliable performance
throughout tens of millions of switching cycles.
Custom options are available to fit specific customer applications. For
more information on the SW100, please call one of our applications
engineers.
DIMENSIONS in INCHES (mm)
Stroke Direction to Part
Description Beam Tip Trigger Switch Number
SW100-01-R Flat Reversed 1002393-1
SW100-01-F Flat Forward 1002393-2
SW100-02-R Curved Reversed 1002132-1
SW100-02-F Curved Forward 1002132-2
0.062
(1.57) PCB
Ø0.187
(4.75)
0.38
(9.65)
0.46
(11.68)
0.375
(9.525)
Hole
SW100-02
Curved Tip
Beam
Return Stroke
(Beam Release)
Forward Stroke
(Force Input)
Tolerances
2 Place Dec - 0.01 (0.25)
3 Place Dec - 0.005 (0.127)
0.062
(1.57) PCB
SW100-01
Flat Tip
Beam
1.76 0.02
(44.70 0.51)
1.84 0.02
(46.74 0.51)
0.130 0.025
(3.30 0.635)
2.80
(71.12)
2 1 +V
9
Please contact the factory for pricing and custom part quotations.
800.745.8008
Effective: August 1st, 2008
Piezo Polymer Coaxial Cable
Piezo cable is another form for piezo
polymer sensors. Designed as a coax
cable, the piezo polymer is the
“dielectric” between the center core
and the outer braid. When the cable
is compressed or stretched, a charge
or voltage is generated proportional
to the stress.
Piezo cable has a number of advan-
tages in certain applications. Due to
its coaxial design, the cable is self-
shielded, allowing its use in a high
EMI environment. The piezo cable
can be spliced to passive coax, using
standard coax splice techniques. It is
extremely rugged, and will stand up
to heavy loads as with truck axle
counting. Its linear format makes it
ideal for monitoring large areas. Two
versions of the piezo cable are
offered, copolymer and spiral.
Detailed specification sheets are available on our website:
www.meas-spec.com.
Continuous lengths of piezo cable is available in a variety of different
gages and construction formats. As a standard product, it is offered
as a 20 AWG center core with a polyethylene outer jacket.
10
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297
Dimensions
Center Core Outside Dia.Part
Number
AWG Piezo Cable 1005646-1
(copolymer)
AWG Piezo Cable 1005801-1
(spiral)
.040 (1.02) .107 (2.72) 200 (655)
Description
Capacitance
pF/ft
(pF/m)
.040 (1.02) .105 (2.67) 279 (980)
DIMENSIONS in INCHES (mm)
20AWG Cable-Copolymer 20AWG Cable-Spiral Wrap
Please contact the factory for pricing and custom part quotations.
800.745.8008
Effective: August 1st, 2008
• Uniform, high amplitude piezoelectronic output compatible with
existing counters and classifiers on the market.
• Excellent Signal to Noise Ration which has an inherent 10:1 rejec-
tion of road noise due to road bending, adjacent lanes and bow
waves of approaching vehicles.
• Easy installation in a 3/4” x 1” slot, which minimizes the distur-
bance of the road, decreases the depth of the road cut, and mini-
mizes the amount of epoxy needed.
• Flexible sensor - conforms to any road profile while maintaining a
uniform distance to the road surface.
• The final installation is flush with the road surface - snowplows
will not do damage to the sensor.
• Durable enough to withstand normal installation handling and
hundreds of millions ESAL’s.
• All sensors are 100% tested and certified for performance as a
complete sensor prior to shipment.
• Custom Passive Signal Cable with High Density Polyethylene Jacket
which is rated for direct burial and resists nicks and cuts.
• Class II sensors are tested to +20% uniformity; Class I (WIM) are
tested to +7% uniformity.
The Roadtrax BL Traffic Sensor is designed for Permanent
or Temporary installation into or onto the road surface for
the collection of traffic data.
The unique construction of the sensor allows it to be
installed directly into the road and a flexible format so
that it can conform to the profile of the road. the flat con-
struction of the sensor gives an inherent rejection of road
noise due to road bending, adjacent lanes, and bow waves
of approaching vehicles.
The small cut in the road minimizes the damage done to
the road, speeds up the installation and reduces the
amount of epoxy used for the installation.
The Roadtrax BL sensor is available both as a Class I
sensor for the highest level of uniformity needed for
Weigh in Motion applications and as a Class II sensor
which is more cost effective for Counting, Classifying,
High speed Toll Booths, Speed Detections, and Red
Light Cameras.
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297
Permanent In-The-Road Installation
11
Traffic Sensors
Many additional sensor lengths and cable lengths are available
Description Part #
6’ BL Class II w/100’ 1005333-1
8’ BL Class II w/100’ 1-1005333-1
10’ BL Class II w/100’ 3-1005333-1
11’ BL Class II w/100’ 4-1005333-1
12’ BL Class II w/100’ 5-1005333-1
6’ BL WIM w/100’ 1-1005438-1
8’ BL WIM w/100’ 2-1005438-1
10’ BL WIM w/100’ 4-1005438-1
11’ BL WIM w/100’ 5-1005438-1
12’ BL WIM w/100’ 6-1005438-1
Extra Cable (50’
increments only) 1004552
Please contact the factory for pricing and custom part quotations.
800.745.8008
Effective: August 1st, 2008
12
The MEAS family of accelerometers
addresses a wide range of application
needs. The ACH-01 is a general purpose,
low xost, linear single axis accelerometer
for a variety of monitoring applications.
The MEAS family of accelerometers have
opened new doors to the design engi-
neer who needs to continuously monitor
vibration, shock and acceleration.
Detailed specification sheets are avail-
able from our website.
MEAS Accelerometers
Applications Features Benefits
ACH-01-XX • Car alarms
• Motional feedback for speakers
• Integrated motor vibration monitor
• Appliance vibration monitoring
• Shipping damage recorder
• Musical instrument pickups
• Lower power
• Low cost
• Single axis
• Wide frequency response
• Large dynamic range
• Small, lightweight
• Buffered electronics output
• High performance/price ratio
• Low impedance output for simplified user
interface
• Very rugged to reduce failures
• Ability to easily measure high frequency
events
• Low noise - High output
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Accelerometers
Please contact the factory for pricing and custom part quotations.
800.745.8008
Effective: August 1st, 2008
Accelerometers
14
ACH-01-XX
Key Features -Wide Frequency Range
-Wide Dynamic Range
-High Sensitivity
-Low Noise
-JFET Buffer
Production Qualified Accelerometers
Sensitive
Axes:
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297
X-Axis ---
Y-Axis ---
Z-Axis X
Sensitivity 10 m V/g
Frequency Range (±3 dB) 1.0 Hz-20 kHz
Dynamic Range ±250 g
Resolution (@ 100 Hz) 40μg / Hz
Resonant Frequency >35 kHz
Resonant Q (Hz/Hz) 30
Transverse Sensitivity 5%
Linearity 0.1%
Operating Temperature -40°C to +85°C
Storage Temperature -40°C to +85°C
Maximum Shock 1000g
Supply Voltage3 V to 40 V 3 V to 40 V
Supply Current (mA) 2 μ A Typical
Weight 3 grams
Size (mm) 13 x 19 x 6
Mounting Method Adhesive
13
Please contact the factory for pricing and custom part quotations.
800.745.8008
Effective: August 1st, 2008
14
The ACH-01 is an inexpensive, robust,
general purpose accelerometer with out-
standing performance characteristics.
The use of piezoelectric film in the ACH-
01 provides many cost/performance
advantages allowing it to be used in a
wide range of applications where the
use of traditional accelerometer technol-
ogy is impractical. It is specifically
designed for high volume applications
that require the permanent installation
of an accelerometer, such as machine
health monitoring, modal analysis, auto-
motive sensors, appliances, and feed-
back control systems.
Description Cable Configuration Part
Number
ACH01-02/10 3 Pins; 0.25” square 1000985
ACH01-03/10 40” coax cable with female connector 1-1001220-0
ACH01-04/10 Wires 1-1001497-0
ACH-01-03 with Shielded Cable
ACH-01
Serial #
Serial #
ACH-01
Serial #
ACH-01-04 with Wires
ACH-01-02 with Pins
Connector Detail
#26 AWG PVC Ins.
Leads (3) 12.0 (304.8) Long
0.025
0.635
Square Pins
0.244
(6.198)
0.515
(13.081)
0.740
(18.796)
0.244
(6.198)
0.515
(13.081)
0.700
(17.78)
1.000
(25.4)
40.0
(1016)
(GND) Black
(OUT) White
(V+) Red
Red (Drain)
White (Source)
Shield
(V+) 3
(OUT) 2
(GND) 1
0.080
(2.032)
Typ.
0.050
(1.27)
0.10
(2.54)
Typ.
Center Line
Connector:
AMP P/N 104257-2
(V+)
(OUT)
(GND)
ACH-01 (General Purpose)
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297
FEATURES
• Wide Frequency Response
• Excellent Phase Response
• Wide Temperature Range
• Wide Dynamic Range
• Small Temperature Dependence
• Low Cost
• Large Supply Voltage Range
• Excellent Linearity
• Low Impedance Output
• Very high Resonance
• Electrically Isolated Base
• Low Mechanical Q
• Low Transverse Sensitivity
Please contact the factory for pricing and custom part quotations.
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Effective: August 1st, 2008
14
15
MEAS has developed this low cost inter-
face amplifier specifically for use with
the IB-ACH-01. It is designed to mate
directly to the connector supplied with
the ACH-01-03 assembly. For use with
either the ACH-01-02 or ACH-01-04, an
adapter is required to interface the two
components.
Description Part
Number
IB-ACH-01 1003058
Characteristics IB-ACH-01
Gain 10 X
Low Frequency Filter -3dB @ 2 kHz, fixed
High Frequency Filter +3dB @ 30 kHz, fixed
Power Supply One 9 Volt Battery
Input Interface FET for IB-ACH-01
Supply Current 4.0 mA
Battery Life 80 Hours
Low Battery Cutoff 7.2 V
Output Impedance 100 Ohm
Output Connector BNC
IB-ACH-01 (Amplifier Box)
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Please contact the factory for pricing and custom part quotations.
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Effective: August 1st, 2008
40kHz Omni Directional Ultrasound Transmitters
40kHZ Wide Angle Ultrasound Receivers
16
Piezoelectric film (PVDF) ultrasound
transmitter and receivers offer unique
advantages for air ranging applica-
tions.
Depending on the applications, reso-
nance frequency and vertical beam
directivity of the transmitter and
receiver can easily be customized by
changing the diameter and length of
the PVDF cylinder. The receiver has a
very wide horizontal beam angle and
it can be reduced by changing the
housing design if necessary.
PVDF transmitters and receivers also
have very low resonance Q value of 5
and PVDF receivers have Q value of 4.
This means that the rising time and
the signal decay time are much faster
than the conventional ceramic trans-
mitters. This characteristic is suitable
for high speed data acquisition or
high speed digitizer applications.
Cylindrical 40kHz PVDF transmitters
exhibit omni-directional horizontal
beam directivity and broad band char-
acteristics.
Cylindrical 40kHz PVDF receivers
exhibit very wide horizontal beam
directivity and broad band characteris-
tics. These characteristics lend unique
solutions in many applications such as
two-dimensional positioning, digitizer, object detection, and
distance measurement.
A test board, consisting of snap-in mount holes and test pins,
is available for easy evaluation of the 40kHz transmitters. A
preamplifier is available for easy evaluation of the 40kHz
receivers.
FEATURES
• Omni-directional horizontal beam
directivity
• Broad band
• Low resonance Q
• Excellent impact resistance
• Low Cost
• Light Weight
Description Part
Number
40 kHz Transmitter 1005853-1
Test Board (for Transmitter) 1005854-1
Drive Electronics (for Transmitter) 1005855-1
40 kHz Receiver 1005856-1
Preamplifier Board (for Receiver) 1005857-1
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Please contact the factory for pricing and custom part quotations.
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Effective: August 1st, 2008
2
Piezoelectric film (PVDF) ultrasound
transducers offer unique advantages for
air ranging applications. Cylindrical
80kHz PVDF transducers exhibit omni-
directional horizontal beam directivity
and broadband characteristics. These
characteristics lend unique solutions in
many applications such as two-dimen-
sional positioning, digitizer, object
detection, and distance measurement.
Depending on the applications, reso-
nance frequency and vertical beam
directivity can easily be customized by
changing the diameter and length of
the PVDF cylinder. PVDF ultrasound
transducers also have very low reso-
nance "Q" values. This means that the
signal rise and decay times are much
shorter than conventional ceramic ultra-
sound transducers. This characteristic is
ideal for positioning applications.
80 kHz Cylindrical Ultrasound Transducer
US80KS-01
SPECIFICATIONS
Characteristics Transmitter Mode Receiver Mode Units
PVDF Thickness 30 30 μm
Resonance Frequency 80 - 90 80 - 90 kHz
Resonance Q 4 - 8 6 - 9
Sound Pressure Output 6 mPa/V
102 dB
Sensitivity 0.3 mV/Pa
-90 dB
Horizontal Beam Directivity 360 360 Degree
Vertical Beam Directivity ±25 ±25 Degree
Capacitance 200 200 pF
Drive voltage max 400 Vp
max 100
Storage Temperature -20 to +85 -20 to +85 ºC
Operating Temperature +5 to +60 +5 to +60 ºC
Outline Mechanical Dimensions
Description Part Number
80kHz Cylindrical 1005919-1
17
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800.745.8008
Effective: August 1st, 2008
Piezoelectric film (PVDF) ultrasonic transduc-
er, wide angle GaAs IrLEDs, flexible printed-
circuit strip, and plastic tip guard assembly,
for use in digitizer pen applications. The
cylindrical transducer gives full 360° horizon-
tal directivity and broad bandwidth in a very
compact format.
Pen Tip Assembly PT80KHZ-01 is well matched
to Shielded Receiver Assembly SR80KHZ-01
(part no. 1007090-1).
Pen Tip Assembly
PT80KHZ-01
Outline Mechanical Dimensions
TRANSMITTER SPECIFICATIONS
Parameter Typical Value, Units Notes
at TA= 25 °C
Operating Frequency 80 - 90 kHz
Resonance Q 6 - 9 (none) to –3 dB frequencies
Sound Pressure Output 8 mPa/V @ 30 cm, 16-cycle sine burst
Sound Pressure Level 101 dB re 20 μPa, @ 30 cm, @
400 Vp-p 16-cycle sine burst
Signal Output 4 mV @ 800 Vp-p decaying
sine drive, using
SR80KHZ-01, @ 30 cm, gain
+26 dB, 2nd positive peak
Horizontal Beam Directivity 360 degrees
Vertical Beam Directivity > 90 degrees to –6 dB level
Capacitance (at resonance) 166 pF
Absolute Maximum Ratings at TA= 25 °C
Drive Voltage (burst mode) 800 Vp-p
Drive Voltage (continuous) 200 Vp-p
Storage Temperature -20 to +80 °C
Operating Temperature +5 to +60 °C
Description Part Number
Pen Tip Assembly 1007089-1
18
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Please contact the factory for pricing and custom part quotations.
800.745.8008
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Piezoelectiric film (PVDF) ultra-
sound transducers offer unique
advantages for air ranging applica-
tions. Cylindrical PVDF transducers
exhibit wide-angle horizontal
beam directivity and broadband
characteristics. These characteris-
tics lend unique solutions in many
applications such as two-dimen-
tional positioning, digitizer, object
detection, and distance measure-
ment. PVDF ultrasound transducers
also have very low resonance “Q”
values. This means that the signal
rise and decay times are much
shorter than conventional ceramic
ultrasound transducers. This char-
acteristic is ideal for positioning
applications.
Shielded Receiver Assembly
SR80KHZ-01 is well matched to Pen
Tip Assembly PT80KHZ-01 (part no.
1007089-1).
Shielded Receiver Assembly
SR80KHZ-01
RECEIVER SPECIFICATIONS
Parameter Typical Value, Units Notes
at TA= 25 °C
Operating Frequency 80 - 90 kHz
Resonance Q 4.5 – 7 (none) to –3 dB frequencies
Sensitivity 0.7 mV/Pa 16-cycle sine burst
-86 dB re 1 V/μbar, 16-cycle sine burst
Signal Output 4 mV using PT80KHZ-01, @ 800 Vp-p
decaying sine drive, @ 30 cm,
gain +26 dB, 2nd positive peak
Horizontal Beam Directivity >180 degrees to –6 dB level
Vertical Beam Directivity ± 25 degrees to –6 dB level
Capacitance (at resonance) 107 pF
Storage Temperature -20 to +80 °C
Operating Temperature +5 to +60 °C
Outline Mechanical Dimensions
Description Part Number
Shielded Receiver Assembly 1007090-1
19
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2
The MiniSense 100 is a low-cost cantilever-type
vibration sensor loaded by a mass to offer high
sensitivity at low frequencies. Pins are designed
for easy installation and are solderable.
Horizontal and vertical mounting options are
offered. The active sensor area is shielded for
improved RFI/EMI rejection. Rugged, flexible
PVDF sensing element withstands high shock
overload. Sensor has excellent linearity and
dynamic range, and may be used for detecting
either continuous vibration or impacts.
The mass may be modified to obtain alternative
frequency response and sensitivity selection
(consult factory).
The MiniSense 100 acts as a cantilever-beam
accelerometer. When the beam is mounted
horizontally, acceleration in the vertical plane
creates bending in the beam, due to the inertia of
the mass at the tip of the beam. Strain in the beam
creates a piezoelectric response, which may be
detected as a charge or voltage output across the
electrodes of the sensor.
The sensor may be used to detect either
continuous or impulsive vibration or impacts. For
excitation frequencies below the resonant
frequency of the sensor, the device produces a
linear output governed by the "baseline"
sensitivity. The sensitivity at resonance is
significantly higher. Impacts containing high-
frequency components will excite the resonance
fre-quency, as shown in the plot above (response
of MiniSense 100 to a single half-sine impulse at
100 Hz, of amplitude 0.9 g). The ability of the
sensor to detect low frequency motion is strongly
influenced by the external electrical circuit.
MiniSense 100 Vibration Sensor
20
Outline Mechanical Dimensions
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800.745.8008
Description Part Number
LDTC MiniSense 100 (Horizontal) 1005939-1
LDTC MiniSense 100 (Vertical) 1005940-1
LDTC MiniSense 100 (No mass) 1007158-1
LDTC MiniSense 100 (Reduced Height) 1006015-1
Effective: August 1st, 2008
Contact Microphone
CM-01B
21
The CM-01B Contact Microphone uses
sensitive but robust PVDF piezo film
combined with a low-noise electronic
preamplifier to provide a unique sound
or vibration pick-up with buffered out-
put. The design minimizes external
acoustic noise while offering extremely
high sensitivity to vibration applied to
the central rubber pad. The CM-01B is
ideal for detecting body sounds.
FEATURES
• Broad bandwidth
• High sensitivity
• Excellelent impact resistance
• Light Weight
• Low Cost
SPECIFICATIONS
Characteristics Min Typ Max Units
Sensitivity 40 V/mm
Lower Limiting 8 Hz
Frequency (-3 dB)
Upper Limiting 2200 Hz
Frequency (+3 dB)
Resonance Frequency 5000 Hz
Spring Constant 20 N/m
Electronic Noise 1 mV pk-pk
Supply Voltage 4 5 30
Supply Current 0.1 mA
Operating Temperature +5 +60 °C
Storage Temperature -20 +85 °C
Description Part Number
Contact Microphone CM-01B 1007079-1
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Kits
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A good way to learn more about piezo film sensors is to purchase one of our design kits. These
kits illustrate the use of piezo film in different configurations, and are a good starting point to
learn more about piezo film sensors and their applications.
Basic Design Ultrasound
Design Kit
Vibration/
Acceleration
This kit demonstrates the
use of MEAS piezo film sen-
sors as microphones, speak-
ers, switches and acoustic
pickups. All the components
and film samples in the kit
can be used for experimen-
tation.
This kit demonstrates the
capabilities of piezo film as
a vibration sensor and
accelerometer component.
The kit includes shielded and
unshielded thin film sensors
and an ACH-01 accelerome-
ter component with an
interface amplifier.
Contents of the Basic Design Kit:
• Technical Manual
• Speaker Element
• Piezo Cable
• Flicker
• SW100-01-R
• ACH-04-08-05
• SDT1-028K
• LDT0-028K
• LDT1-028K
• DT1-028K
• Test PCB ACH-04-08
• Application Notes
• Application Specs
• Instructions Sheets
Contents of the Ultrasound Design Kit:
• 40 kHz transmitters (4 ea)
• 40 kHz transmitters (4 ea)
• One drive electronic board
• Preamplifier (2 ea)
• Test boards (2 ea)
• Cable assembles
• Product data sheets
• Instruction sheets
Contents of the Vibration
and Acceleration Kit:
• Technical Manual
• SDT1-028K
• ACH-01 MEAS Box
• ACH01-03/10
• LDT1-028K
• LDT0-028K
• DT1-028K
• 9 Volt Battery
• Application Specs
• Instructions Sheets
Description Part
Number
Basic Design Kit 1004308
Vibration/Acceleration Kit 1003460
Ultrasound Design Kit 1005870
This kit demonstrates the
use of the MEAS piezo film
for low frequency (40 kHz)
ultrasound. Typical applica-
tions include two-dimension-
al positioning, digitizers,
object detection, and dis-
tance measurement.
Piezocatalog_0808
01800001-000_0808
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