锁相放大 lock-in amplifier
- 次级信号在同样频率下由锁相放大器检测。
Secondary signals are detected by lock-in amplifiers at the same frequency. - 主要介绍了模拟锁相放大器和数字锁相放大器原理、特点、过渡和发展过程。
This review gives an introduction to the principle, character and development of the analog and digital lock-in amplifier. - 本文介绍了一种用声光调制器、模拟除法器和自动锁相放大器来改进激光探针测试系统稳定性的方法。
This paper reports a technique used lor improving the stability of the laser probe consisting of an acoustooptic modulator, an analogue divider and an auto-lock-in amplifier.
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