System for automatically testing motor parameters
A technology for automatic testing system and motor parameters, which is applied in the direction of motor generator testing, measuring electricity, measuring devices, etc. It can solve the problems of excessive no-load current, cumbersome, and inappropriate of the motor, and achieve the effect of convenient observation and convenient use.
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[0019] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
[0020] The invention provides an automatic test system for motor parameters. The system includes integrated box, power module, motor, current sensor module, analog-to-digital conversion module, photoelectric encoder, DSP control system, serial port and host computer display. The detection method of the system is as follows: connect the current sensor module in series to the motor circuit, and measure the current I through the motor a ; DSP obtains the motor speed n through the photoelectric encoder; obtains the motor armature resistance R through the no-load two-point method a ; Take the current value I a , The motor speed n and the corresponding motor armature winding R a As a basis, establish the corresponding mathematical model to calculate other motor parameters through DSP, such as: back electromotive force, back electromotive force coefficient, ...
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