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PVDF PIEZO film , PVDF PIEZO membrane

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Address: Miangyang

Contact name:Michael zhang

Mianyang Prochema Commercial Co.,Ltd.&GUS Industry (Hongkong) Co,.limited

PVDF PIEZO film , PVDF PIEZO membrane

Country/Region china
Categories Bag Making Machinery

Product Details

PVDF PIEZO film, PVDF PIEZO transducer ,PVDF PIEZO sensor

 

Characteristics

1.Piezoelectric property

It produces voltage in proportional to compressive or tensile mechanical stress or strain, which makes it a dynamic strain gauge.

2.Dielectric property and low impedance

Piezo film changes proportionally in dimension while an electric field at frequencies from 0~500MHz. This property, as well as the film’s low impedance, makes piezo film perfectly suitable for high fidelity transducers operation throughout the high audio and ultrasonic.

3.pyroelectric property

piezo film also reactsto changes in temperature with predictable, high voltage outputs

4.Chemically insert and biocompatible.

It is ideally to make vital signs transducer attached to skin or be used in medical devices.

5.high stress constant

Piezo film’s stress constant is about 10 times higher than other piezoelectric materials

6.excellent processibility

thin with low weight and low mass, can be twisted into various forms.

7.Low temperature property

It works in the temperature as low as-40°C.

Piezo Sensor Type Applications

Accelerometer/Vibration Sensors

Washing machine load balance, pacemaker, pedometer, motion and vibration sensors, medical vital signs and cardiac monitors, motional feedback for speakers

Acoustic

Musical instrument pickup, electronic stethoscope, coin validation, bone conduction microphone, perimeter security cable, acoustic speakers

Anti-tamper panel

Security - electronic chip protection

Hydrophone

Sonar

Hypersonic speaker

Ultrasonic directional speakers

Load/impact

Stamping machine load cells, passenger safety systems, target impact

Traffic Sensor

Traffic counters, speed, toll and red light enforcement

Flexible switch

Water meter cam counter, CMOS wake-up switch, door operation detection

Piezo Cable

Buried or fence-mounted sensor for perimeter security

Ultrasonic digitizer

Electronic pen input

Ultrasonic transducer

Fluid level sensing, process flow meter, medical imaging, subsea acoustic camera, non-destructive testing


Specification

Detailed sizes

 

 

30um210x140mm
50um210x140mm
50um200x140mm
100um200x140mm
200um200x140mm
500um200x130mm
  

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PVDF piezoelectric film properties

Item

Indicators

Piezoelectric constant d33

18-32 PC/N

Of dielectric constant ε / ε0

9-13 (IKHZ)

Velocity C

2000m / s

Electromechanical coupling coefficient k33

10-14 %-

Volume resistivity p

- 1013Ω.cm

Pyroelectric coefficient p

40c/cm2.k

Detection sensitivity (4HZ)

1011m.HZ1/2/W

Temperature T

-40-80 °C

Applications

 

Type

Properties

Applications

Audio transducer

Using PVDF piezoelectric film of the lateral piezoelectric

Microphone, muffler noise microphone, telephone microphone, bimorph transducers, headphones, speakers, accelerometers, and medical sensors

Electrical transducers and devices

Using PVDF piezoelectric film of the lateral piezoelectric

Phonograph pickup, non-contact switch, telephone set, a typewriter and computer keyboard, blood pressure monitors, optical shutters, optical switch, zoom lens, and tactile sensors, displays, displacement sensor

Ultrasonic and underwater transducers

PVDF membrane using the longitudinal piezoelectric piezoelectricity at room temperature, 500MHz frequency within the useful signal can be generated

Send and receive ultrasound, and non-destructive testing transducers, imaging arrays, hydrophones, and delay lines, optical modulator, variable focus transducer, ultrasonic microscope, ultrasonic diagnostic apparatus

Infrared and optical devices

Using PVDF piezoelectric film pyroelectricity

Infrared detectors, camera, infrared visible light converter, a photocopying machine, reverse detector, excitation optical power meter, fire detectors, burglar alarm

 

PVDFPIEZO Film's Main technology data:

 

piezoelectric strain constant:d31:17±1PC/N

d32:5~6 PC/N

d33:21 PC/N21x10-12

piezoelectric voltage constant(g33):200×10-3Vm/N

relative dielectric constant(ε/ε0):9.5±1.0(IKHZ)

sound velocity(C)2000m/s

acoustic impedance2.5~3

Electromechanical coupling coefficient(K33)10~14%

volume resistance(ρ)1013Ω.cm

Pyroelectric coefficient(P) 0.4x10-8c/cm2.K

detection sensitivity:(4Hz)1011m.HZ1/2/W

Surface resistance:the same electrode resistance between any two points40Ω

elongation at break:20~50%

young modulus:2500MPa/psi

yield strength:45~55 106N/m2

Tensile strength:35-50MPa/psi

Density(ρ):1.78×103kg/m3

Poisson's ratio:0.35

Working temperature(T)-40~80℃

Thickness tolerance:±35%(30~500μm)

Electrode fastness::Use transparent glue paste electrode fastness: no falls off phenomenon

elasticity modulus2400-2600MPa

 

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