Method for measuring rotating speed of rotating body by using accelerometer

Abstract

The invention provides a method for measuring the rotating speed of a rotating body by using an accelerometer, which relates to the technical field of rotating speed detection, and comprises the following steps executed by a computer: intercepting output signals of a plurality of rotating periods of two vertical sampling channels of the accelerometer in a rotating body signal processing module, and downsampling the output signals as original data; performing zero drift removal operation on the data; the number of rotation cycles corresponding to the segment of data is solved by obtaining the number of zero points corresponding to the zero drift removed data; and calculating the rotating speed of the rotating body by combining the rotating period number of the intercepted data with the corresponding time duration. The invention provides a convenient and rapid method for measuring the rotating speed of the rotating body, which has higher practicability and provides a new solution thought for measuring the rotating speed of the rotating body.

Description

technical field [0001] The invention relates to the technical field of rotation speed detection, in particular to a method for measuring the rotation speed of a rotating body using an accelerometer. Background technique [0002] In the automation equipment and production automation process in various fields such as transportation, electric power, metallurgy, chemical industry and building materials, the rotational speed of the rotating body is an important reference quantity, such as elevator lifting, machine tool drill speed, CNC machine tool position movement and other situations where the rotational speed needs to be measured. [0003] The speed measurement method can be divided into two categories, one is the direct method, that is, directly observes the mechanical movement of the machine or the motor, and measures the number of revolutions of the machine in a specific time, so as to measure the speed of the mechanical movement; the other is the indirect method, That is ...

AI Technical Summary

Problems solved by technology

However, the flash speed measurement method can only measure high speeds, and cannot measure low speeds.

[0010] In summary, most of the current methods for measuring the rotational speed of rotating bodies have the problems of unsatisfactory measurement results and difficult measurement conditions.

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