Method for measuring rotating speed of rotating body by using accelerometer

A technology of accelerometer and measurement method, which is applied in the direction of using acceleration for speed measurement, speed/acceleration/shock measurement, and devices using electric/magnetic methods, etc., which can solve the problems that are not easy to achieve, the measurement effect is not ideal, and the measurement conditions are harsh. and other issues to achieve ideal results, save installation space and measurement costs, and achieve easy results

CN114264839APending Publication Date: 2022-04-01YANSHAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2022-04-01

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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.
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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 ...

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Embodiment Construction

[0038] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0039] like figure 1 As shown, in the embodiment of the present invention, a method for measuring the rotational speed of a rotating body using an accelerometer, as an instrument for measuring acceleration, the accelerometer not only has excellent integration and deviation stability, but also has low cost, The characteristics of vo...