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.

Effective stiffness (N/m)

Required number input.

Effective proof mass (kg)

Required number input.

Find the undamped natural frequency of a single-degree-of-freedom MEMS proof mass from effective stiffness and effective mass. 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]

Undamped natural frequency (Hz)

The resulting undamped natural frequency returned as a number.

• MEMS resonance, scale factor, and Q depend on structure, packaging pressure, temperature, drive amplitude, damping, fabrication spread, mounting stress, and readout electronics. Lumped models may not capture mode coupling or nonlinear operation.
• 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.

• Haptic Resonant Frequency

  Undamped natural frequency of a single-degree-of-freedom haptic actuator from effective stiffness and moving mass.

• Haptic Actuator Force

  Estimate an actuator proof mass's inertial force magnitude from effective moving mass and acceleration magnitude.

• Bandwidth From Q

  Calculate the bandwidth of a resonant circuit from its resonant frequency and quality factor.