摘要介绍了一种新型的外差锁定放大技术的工作原理及在ＳＴＭ中的应用。In this paper, the operation principlies and application in STM of a new type of heteredyne lock-in amplifier are introduced.
2Rok Ursic, et al. 1 nA BEAM POSITION MONI- TORING SYSTEM, American Physical Society, Particle Acceleration Meeting, May 12-16, 1997, abstract # 9P. 89,05/1997.
3Peter Forck, Lecture Notes on Beam Instrumentation and Diagnostics, in GSI Joint University Ace. School, January -March 2005, P. 90-92.
