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1. (WO2017036000) ROTATING SPEED DETECTION DEVICE BASED ON POWER SUPPLY CONTROL AND OUTPUT PULSE FREQUENCY

Pub. No.:    WO/2017/036000    International Application No.:    PCT/CN2015/098411
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Thu Dec 24 00:59:59 CET 2015
IPC: G01P 3/486
Applicants: WUXI EPIC TECHNOLOGY CO., LTD.
无锡伊佩克科技有限公司
Inventors: YOU, Wei
尤为
Title: ROTATING SPEED DETECTION DEVICE BASED ON POWER SUPPLY CONTROL AND OUTPUT PULSE FREQUENCY
Abstract:
A rotating speed detection device based on power supply control and output pulse frequency comprises a rotating speed sensor, a pulse shaping and amplification circuit, a microcontroller module, and a display module. The rotating speed sensor is connected to the microcontroller module by means of the pulse shaping and amplification circuit. The display module is connected to a corresponding port of the microcontroller module. The rotating speed sensor comprises a light source emitter, a rotating gear, and a photoelectric sensor. The light source emitter and the photoelectric sensor are disposed at two sides of the rotating gear. The rotating speed detection device has a simple structure and high measurement precision.