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Sparkfun: Large Piezo Vibration Sensor - With Mass

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Overview

The Large Piezo Vibration Sensor is a basic piezo sensor which is often used for flex, touch, vibration and shock measurements. This sensor acts like a small capacitor which discharges up to +/-90V when the film moves back and forth. Some common uses this type of sensor are for impact sensing or as a flexible switch. A larger scale example are piezo sensors that are laid within the road for use of traffic signals.

This sensor can be purchased at SparkFun.

The Technical Manual and datasheet can also be found on Sparkfun's website.