A Novel Vibration Suppression System for Mechanical Cryocooler
Vibration generated by mechanical cryoeoolers has been identified as a critical issue for space infrared application. A novel vibration suppression system based on momentum cancellation has been developed. The cryocooler expander module consists of a displacer and an electro-magnetically driven actuator, which are mechanically placed in a back-to-back configuration.The transfer function of actuator has been solved, based on that result, novel analogue control electronics has been designed to regulate the displacer displacement signal and drive the actuator, so actuator and displacer can move in opposite direction to reduce the vibration force. With this system, the fundamental vibration is reduced by a factor of more than 40 dB; the power consumption is only less than 0.5W without control electronics. The system has been successfully applied to our cryocooler and infrared instruments.
Yang B Y Wu Y N Tang Y J Fu H Lu G H
Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,P.R.China Shanghai Institute of Technical Physics,Chinese Academy of ciences,Shanghai 200083,P.R.China
国际会议
上海
英文
163-166
2008-04-05（万方平台首次上网日期，不代表论文的发表时间）