Development of power self-adapting semi-conductor laser therapeutic instrument
- VernacularTitle:功率自适应半导体激光治疗仪的研制
- Author:
Changsheng MA
;
Xuemin QU
;
Feng XIAO
;
Haitao LI
;
Jiqing YANG
- Publication Type:Journal Article
- Keywords:
Laser diode;
singlechip;
PID
- From:
Chinese Medical Equipment Journal
2004;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To solve the problems of low power laser instrument with single wavelength and instable output power as well as its incapability of studying the biological effect of low intensity laser and clinical treatment. Methods The AT89S52 singlechip and PID algorithm were used. Results The desired instrument could output the wave of 532nm green laser which could be adjusted continuously from 0mW to 30mW and the wave of 650nm red laser which could be adjusted continuously from 0mW to 50mW. The error of power could be controlled within 0.1mW. Conclusion The instrument can be used to study the biological effect of low intensity laser and clinical treatment with small volume,easy operation and high stability of laser output.
