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Vibration sensors or accelerometers

An accelerometer (from the Latin accelerero-I accelerate and the Greek μετρωω "I measure") is a device that measures the projection of apparent acceleration (the difference between the true acceleration of an object and gravitational acceleration). As a rule, an accelerometer is a sensitive mass fixed in the elastic suspension. The deviation of the mass from its initial position in the presence of an apparent acceleration carries information about the magnitude of this acceleration.

According to the design, accelerometers are divided into one, two or three component. Accordingly, they allow you to measure the projections of apparent acceleration on one, two and three axes.