Use this electronics calculation for a first-pass component, converter, signal, motor, or sensor estimate when the stated operating conditions and units match the device data.

D33 Meters Per Volt (m/V)

Required number input.

Voltage Volts (V)

Required number input.

Active Layers

Required integer input.

Ideal unloaded piezo stack displacement from effective d33 coefficient, drive voltage and number of active layers. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Displacement Meters (m)

The resulting displacement meters returned as a number.

• Piezoelectric charge, voltage, displacement, sensitivity, and resonance depend on material constants, axis, geometry, preload, boundary conditions, frequency, temperature, dielectric loss, amplifier input, and hysteresis. Static measurements are limited by leakage.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check the result against the current datasheet and worst-case operating corners, then verify the circuit or measurement with simulation and bench testing where failure matters.

• Piezo Sensor Charge Amplifier Voltage

  Calculate ideal inverting charge-amplifier output voltage as −Q/Cfeedback for a piezoelectric sensor; leakage and reset circuitry are excluded.

• Piezoelectric Charge

  Calculate generated charge Q=dF from an effective piezoelectric charge coefficient and force along a matched axis. Enter d in C/N and force in N; orientation and mechanical boundary conditions must match the coefficient.

• Piezoelectric Open-Circuit Voltage

  Estimate open-circuit piezoelectric voltage as generated charge divided by effective capacitance. Loading, leakage, and amplifier input impedance can reduce measured voltage.