A motor steering speed detection device and method

Abstract

The embodiment of the invention discloses a motor steering speed detection device, which is used to solve the problems that the existing measuring device is easily affected by the external electromagnetic environment, the measurement result is inaccurate, and the application environment is limited. The method of the embodiment of the present invention includes: a motor under test, a code disc, a photoelectric sensor, a shaping filter circuit, and a processor; the code disc is installed on the rotor of the motor under test, so that the code disc is driven by the motor under test The bottom rotates synchronously; the code disc is divided into N regions with the center as the base point, and the N regions are arranged in sequence according to the size of the light transmittance, and N is greater than or equal to 3; the transmitting end and the receiving end of the photoelectric sensor are relatively The optical path between the transmitting end and the receiving end passes through the code disc; the photoelectric sensor, the shaping filter circuit and the processor are electrically connected in sequence. The embodiment of the present invention also provides a method for detecting the rotation speed of a motor.

Description

technical field [0001] The invention relates to the technical field of motor detection, in particular to a device and method for detecting a motor steering speed. Background technique [0002] Motors have been widely used in actuators. As a key drive component, their performance directly determines the control effect of the entire actuator. [0003] At present, the method of measuring the steering and rotational speed of the motor is to install a rotary encoder on the coaxial shaft of the motor and process the Hall pulse signal output by the encoder. However, the structure of the encoder assembly is precise, and it is easily affected by the external electromagnetic environment when the Hall signal is processed, which makes the measurement result inaccurate, and its use environment is greatly restricted. For the actuator driven by the motor, the rotation direction and speed of the motor are extremely important parameters for motor control, and the detection results directly ...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a motor steering speed detection device and method, which can solve the problems that the existing measuring device is easily affected by the external electromagnetic environment, the measurement result is inaccurate, and the application environment is limited.

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