Effective: August 1
st
, 2008
Typical Applications for Piezo Film Sensors
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
Effective: August 1
st
, 2008
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297
1
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 S
witches
-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
Effective: August 1
st
, 2008
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297
2
2
Metallized Piezo Film Sheets
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 700
D
of copper covered with 100
D
of nick-
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.
DIMENSIONS in INCHES (mm)
Description
28 μm piezo film
28 μm piezo film
28 μm piezo film
52 μm piezo film
52 μm piezo film
52 μm piezo film
110 μm piezo film
110 μm piezo film
110 μm piezo film
A
Film
8.00 (203)
8.00 (203)
8.00 (203)
8.00 (203)
8.00 (203)
8.00 (203)
8.00 (203)
8.00 (203)
8.00 (203)
B
Electrode
8.00 (190)
7.50 (190)
7.50 (190)
8.00 (190)
7.50 (190)
7.50 (190)
8.00 (190)
7.50 (190)
7.50 (190)
C
Film
11.00 (280)
5.50 (140)
11.00 (280)
11.00 (280)
5.50 (140)
11.00 (280)
11.00 (280)
5.50 (140)
11.00 (280)
D
Electrode
11.00 (267)
5.00 (127)
10.50 (267)
11.00 (267)
5.00 (127)
10.50 (267)
11.00 (267)
5.00 (127)
10.50 (267)
t
(μm)
28
40
40
52
64
64
110
122
122
Metallization
Cu-Ni
Silver Ink
Silver Ink
Cu-Ni
Silver Ink
Silver Ink
Cu-Ni
Silver Ink
Silver Ink
Part
Number
1-1003702-7
1-1004347-0
1-1004346-0
2-1003702-7
2-1004347-0
2-1004346-0
3-1003702-7
3-1004347-0
3-1004346-0
Effective: August 1
st
, 2008
Please contact the factory for pricing and custom part quotations.
800.745.8008
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297
3
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.
D
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.
C
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.
t
t
Metallization
B
Protective Coating
Piezo Film
A
DIMENSIONS in INCHES (mm)
Description
A
Film
.64 (16)
.64 (16)
.64 (16)
.64 (16)
.86 (22)
.86 (22)
B
Electrode
.484 (12)
.484 (12)
.484 (12)
.484 (12)
.740 (19)
.740 (19)
C
Film
1.63 (41)
1.63 (41)
2.86 (73)
2.86 (73)
6.72 (171)
6.72 (171)
D
Electrode
1.19 (30)
1.19 (30)
2.42 (62)
2.42 (62)
6.13 (156)
6.13 (156)
t
(μm)
40
64
40
64
40
64
Cap
(nF)
1.38
.740
2.78
1.44
11.00
5.70
Part
Number
1-1002608-0
2-1002608-0
1-1002145-0
2-1002145-0
1-1002149-0
2-1002149-0
DT1-028K
DT1-052K
DT2-028K
DT2-052K
DT4-028K
DT4-052K
Effective: August 1
st
, 2008
Please contact the factory for pricing and custom part quotations.
800.745.8008
MEASUREMENT SPECIALTIES, INC. www.meas-spec.com (757) 766-1500 Fax (757) 766-4297
4
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