On the basis of optically powered sensor principles,this paper introduces a practical scheme of an optically powered force sensor using a piezoelectric crystal worlding in close-loop resonant mode.A 3 mW LD stabilized...On the basis of optically powered sensor principles,this paper introduces a practical scheme of an optically powered force sensor using a piezoelectric crystal worlding in close-loop resonant mode.A 3 mW LD stabilized is used as optical source.The optical powering distance reaches 500 m while the total power consumption of the micro power measuring head is only 0.275 mW.The key technical problems of the sensors are presented as well as experimental results.展开更多
文摘On the basis of optically powered sensor principles,this paper introduces a practical scheme of an optically powered force sensor using a piezoelectric crystal worlding in close-loop resonant mode.A 3 mW LD stabilized is used as optical source.The optical powering distance reaches 500 m while the total power consumption of the micro power measuring head is only 0.275 mW.The key technical problems of the sensors are presented as well as experimental results.
