Enter your Accelerometer Output, Supply Voltage, Sensitivity, and Zero-G Offset into this Accelerometer Calculator to find the Acceleration in g-force and m/s², plus the Tilt Angle and Peak Acceleration for your chosen Axis and Vibration Frequency.
Acceleration
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Acceleration (m/s²)
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Tilt Angle
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Peak Acceleration
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Accelerometer sensitivity is the ratio of output voltage change to acceleration input, typically expressed in V/g or mV/g. Higher sensitivity provides better resolution for small acceleration changes but may limit the maximum measurable range.
To convert voltage to g-force, subtract the zero-g offset voltage from the output voltage, then divide by the sensitivity. The formula is: G-force = (Output Voltage - Zero-G Offset) / Sensitivity.
Zero-g offset is the output voltage when the accelerometer experiences no acceleration (0g). This offset must be subtracted from measurements to get accurate acceleration values. It's typically half the supply voltage for single-supply accelerometers.
Yes, you can calculate tilt angle using the arctangent of the acceleration ratio. For small angles, the tilt angle approximates to arcsin(acceleration/1g). This works best for static measurements without external vibrations.
Both measure acceleration but use different scales. 1g equals 9.81 m/s² and represents Earth's gravitational acceleration. Accelerometers often use 'g' units because it's intuitive for gravity-related measurements.
Supply voltage affects the output range and zero-g offset. Most accelerometers have ratiometric outputs, meaning sensitivity and offset scale with supply voltage. Stable supply voltage is crucial for accurate measurements.
The frequency range depends on your application. Structural vibration typically occurs below 100 Hz, machinery vibration ranges from 10-1000 Hz, while shock measurements may require bandwidth up to several kHz.