In a nutshell, when the piezoelectric sensor vibrates, the digital output changes from low to high and the analog output voltage ascends depending on the vibration intensity. The vibration amplitude ...

The idea behind this compact and economical Vibration Sensor Alarm is very simple. It uses a cheap and cheerful vibration sensor to drive a piezo-sounder. As can be seen in the circuit diagram, it is ...

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In this work, a piezoelectric MEMS based vibration sensor with a unique gimbal shaped guard ring in differential electrical configuration has been designed for enhanced acceleration sensitivity in out ...