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.

Piezoelectric coefficient (C/N)

Required number input.

Applied force (N)

Required number input.

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. 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]

Charge C

The resulting charge c 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.

• Piezoelectric Sensor Sensitivity

  Charge sensitivity of a piezoelectric sensor from generated charge and applied force.

• 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.

• Brushless Motor Propeller Thrust

  Static propeller thrust from a supplied thrust coefficient, air density, rev/s and diameter; coefficient must match the propeller and operating point.