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1pc Piezo Vibration Sensor Piezoelectric Thin Film, AC Coupled, High Sensitivity

$ 4.09

Availability: 31 in stock
  • Termination Type: Solder Tab
  • Country/Region of Manufacture: Unknown
  • Current Type: AC
  • Model: LDT0-028K
  • MPN: LDTM-028K
  • Brand: TE Connectivity
  • Condition: Lamination may have tarnished yellow tint from oxidation.

    Description

    Please note that the laminated white part of the sensor may be slightly yellow from oxidation.
    The
    LDT0-028K
    is a flexible component comprising a 28 μm thick piezoelectric PVDF polymer film with screen printed silver ink electrodes, laminated to a 0.125 mm polyester substrate, and fitted with two crimped contacts. 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.
    FEATURES:
    Solder Tab Connection
    Withstands High Impact
    Operating Temperature: 0C to 85C
    Storage Temperature: -40C to 85C
    APPLICATIONS:
    Vibration Sensing in Washing Machine
    Low Power Wake up Switch
    Low Cost Vibration Sensing
    Car Alarms
    Body Movement
    Security Systems
    Package of 1 piezo.