摘要
针对现有的微型部件的转速测量方法的局限性,提出了一种基于偏振光检测的微型转速计的设计方案和相应的装置。该方案基于光的偏振特性,采用同光源多光路结构,对多路信号进行比较,实现了转速测量。该方案易于实现结构的微型化,并具有安装方便、抗干扰能力强等优点。测试结果表明,转速计在高转速和低转速场合都具有较好的性能。
A novel miniature tachometer using polarized light detection is presented in this paper, in order to improve current methods of measuring miniature components' rotation speed. Based on the characteristics of polarized light, the tachometer is realized by using a structure of same light source and multi-light paths. The tachometer is easy to be manufactured in a mini size and installed. The experiment shows that the tachometer has a good performance of measuring low rotation speed as well as high rotation speed.
出处
《机电工程》
CAS
2004年第10期1-4,共4页
Journal of Mechanical & Electrical Engineering
基金
国家自然科学基金资助项目(50075081)
863计划资助项目(2001AA423320)
浙江省自然科学基金资助项目。
