A Low-intensity Laser Control System Design

Abstract

Low-power laser therapy is widely used in the treatment of various diseases as a clinical adjuvant therapy. In this paper, a multi-channel low-power laser physiotherapy equipment design scheme is proposed. The laser exciter used in this scheme can generate laser light with a wavelength of 650±20nm. In order to realize the requirement of multi-point irradiation, the device has designed 8 laser channels, and these channels are controlled by the main control unit composed of STM32F407ZGT6 single-chip microcomputer. The user can control the power, frequency and working time of the laser generator only by making some simple settings on the operation unit. In order to ensure the integrity of the treatment process, the system has designed a power-off protection mechanism, which can automatically save the working parameters in progress.