What is the Difference Between an Accelerometer and a Vibration Sensor?

The difference of working principle

Acceleration sensors and vibration sensors look very similar in appearance, but there is a big difference in how they work.

An acceleration sensor measures the acceleration of an object over a given period of time, that is, the rate of change in the velocity of an object over a period of time. It obtains vibration information by measuring the motion state of the object.

The vibration sensor is to measure the amplitude, frequency and phase information of the vibration of the object, and diagnose the application through the characteristics of the vibration. It directly monitors the vibration of the object and is used to determine whether the equipment is in normal operation.

Acceleration sensor

An acceleration sensor is a common sensor used to measure the acceleration of an object. This sensor is manufactured using microelectromechanical system (MEMS) technology and can measure an object's acceleration, tilt Angle and static gravity. It is widely used in car navigation, smart phones, sports tracking and other fields. The working principle of the acceleration sensor is to estimate the speed and displacement of an object by measuring its acceleration.For example, the bias stability of ER-MA-5 is (1s standard deviation)(1σ)<20ug, and bias month repeatability is 200ug.

Vibration sensor

Vibration sensor is a kind of sensor mainly used in industrial automation, mechanical monitoring and other fields. It can measure key parameters such as vibration speed, displacement and acceleration of equipment or machines. The working principle of vibration sensor is to capture the vibration signal of the target to feedback its physical motion. Under normal circumstances, vibration sensors are widely used in mechanical fault diagnosis, process monitoring, equipment status assessment and other fields.

Application difference

Although both vibration sensors and acceleration sensors can be used to detect vibrations, they have different application scenarios. Vibration sensors are mainly used in industrial automation, mechanical monitoring and other fields, which can measure the speed, displacement and acceleration of vibration. The acceleration sensor is suitable for car navigation, smart phones, sports tracking and other fields, and can measure the acceleration of objects. In addition, vibration sensors are better suited for measuring low frequency vibrations than acceleration sensors, while acceleration sensors are better suited for high frequency vibrations than vibration sensors.

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