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As the piezo film is displaced from the mechanical neutral axis, bending creates very high strain within the piezopolymer and high voltages are generated.  When the assembly is deflected by direct contact, the device acts as a flexible "switch", and the generated output is sufficient to trigger MOSFET or CMOS stages directly. If the assembly is supported by its contacts and left to vibrate "in free space" (with the inertia of the clamped/free beam creating bending stress), the device will behave as an accelerometer or vibration sensor. Adding mass, or altering the free length of the element by clamping, can change the resonant frequency and sensitivity of the sensor to suit specific applications. Multi-axis response can be achieved by positioning the mass off center. The LDTM-028K is a vibration sensor where the sensing element comprises a cantilever beam loaded by an additional mass to offer high sensitivity at low frequencies. 


  • Piezo film sensors
  • High sensitivity
  • AC coupled
  • Laminated
  • Robust 
  • Solder tab connection
  • Both no mass & with mass versions
  • Withstands high impact
  • Operating temperature: 0ºC to 85ºC
  • Storage temperature: -40ºC to 85 ºC
  • Higher temperature version up to 125 ºC available on a custom basis  

Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Sensor Type  Element

  • Features  Laminated, Strips

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