The vibration sensor also known as a piezoelectric sensor, is a flexible device used for measuring various processes. This sensor utilizes the piezoelectric effect to measure changes in acceleration, pressure, temperature, force, or strain by converting them into an electrical charge. Vibration analysis serves as a tool to determine equipment condition and identify specific problems. The sensor’s output is an AC signal proportional to the vibration of the structure at the mounting point of the sensor. You can find this sensor at a very low price with good quality.