Two non-contact photoelectric angular position sensors for motion control applications
The angular position sensor can be integrated into most motion control applications where precision monitoring of angular position is required.In order to eliminate mechanical wear of present angular position sensors for determining the rotation orientation,two new non-contact methods utilizing photoelectric switches are proposed and the corresponding sensors are established.One sensor comprises a gravitational ball,one or more light sources and a circular array of photodetectors,and realizes angular position measurement by setting a block between the light source and the corresponding photodetector which is rotated to the lowest point.Another sensor consists of transmitter-receiver sets and an optical encoder.Different from traditional rotary encoder,the transmitter-receiver sets are arranged around the circumference of rotation,and the optical encoder is only one-turn encoder.The concrete configurations of the sensors are described in detail and typical prototypes are illustrated.Both the angular position sensors are non-contact,compact,and low-cost.They can resist harsh environmental conditions such as vibration,excessive ambient temperature,dirt,moisture and dew,so it is especially well-suited for motion control applications.
angular position sensor roll sensor photoelectric switch optical encoder motion control
Xu Tao Chen Xiaolu Jiang Bo
Department of Navigation and Communication, Navy Submarine Academy, Qingdao, Shandong,China, 266071
国际会议
2012第八届精密工程测量和仪器仪表国际研讨会(ISPEMI2012)
成都
英文
1-6
2012-08-08（万方平台首次上网日期，不代表论文的发表时间）