STC-based motor rotating speed measurer

Abstract

The invention discloses an STC-based motor rotating speed measurer. The measurer comprises a single-chip microcomputer, a resetting circuit, a button module, an indication circuit, a download module, a driving circuit, a speed measuring module, a buzzer, a Flash font library, a display module, a power supply module, a plus 5V voltage stabilizing unit and a plus 3.3V voltage stabilizing unit. The power supply module is connected with the plus 5V voltage stabilizing unit and the driving circuit. The plus 5V voltage stabilizing unit is connected with the single-chip microcomputer, the resetting circuit, the button module, the indication circuit, the download module, the driving circuit, the speed measuring module, the buzzer, the display module and the plus 3.3V voltage stabilizing unit. The plus 3.3V voltage stabilizing unit is further connected with the Flash font library. The speed measuring module measures the real-time rotating speed of a direct current motor through a photoelectric encoder. The STC-based motor rotating speed measurer which has the characteristics of simple main circuit structure, low power consumption, high switch frequency, low harmonic waves, low pulsation, low motor loss, good stabilizing performance, wide speed regulation range, wide frequency band, rapid response, strong anti-interference capability can be widely used in electric power transmission systems in traffic, industrial and mining enterprises, etc.

Description

technical field [0001] The invention specifically relates to an STC-based motor speed measuring device. Background technique [0002] With the development of science and technology in the industrial automation industry, rotating equipment is inseparable from all industrial equipment, so various motors play a vital role in different fields. The ensuing question is how to better control the rotation of the equipment. According to different environments, the required methods are different, but most of them involve the measurement of the rotational speed, so as to control the equipment according to the rotational speed. [0003] Speed ​​measurement is an important part of mechanical testing. Its speed can express whether the motor is in normal mechanical rotation at this time, and the real-time and realistic speed can also show whether it breaks down during operation to avoid greater losses. . [0004] Rotational speed measurement has a wide range of applications, such as indu...

AI Technical Summary

Problems solved by technology

With the development of power electronics and control technology, the improvement of AC speed regulation, its performance can be comparable to it, making the range of speed regulation wider, but because the control technology is more cumbersome and the cost is higher, so in It is difficult to replace the DC speed control system in a short time

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