释义 |
- 锁相放大器:一种用于测量微弱信号的电子设备,通过将输入信号与参考信号进行相位敏感的检测和滤波,从而提高信噪比。
1 [电子]?锁定放大器 ...器的设计 关键词:多抽样率;锁定放大器;数字滤波器;抽取滤波器 [gap=682]Key words:multisampling; the Lock-in amplifier; digital filter; decimation filter ... 2 ?放大器 目前在微弱信号检测中,应用较广泛的是锁定放大器(Lock-in amplifier,LIA),它具有极强的抗噪性能. 3 ?锁相放大 当 SQUID 测量磁场时,工作点会受外来磁场的影响而偏离原位置,而SQUID 电压讯号经锁相放大(lock-in amplifier)反馈磁通于 SQUID,使 SQUID 保持在原工作点。 4 ?锁相放大器 Microsoft Word - 33.doc 关键词:微弱信号检测;矢量测量;锁相放大器; [gap=603]Key words: Weak Signal Detection; Vector Measuring; Lock-in Amplifier;
- 1
The optical signal was amplified by a lock-in amplifier. - 2
A lock-in amplifier is used to supply the driving signal and to detect the output signal corresponding to the sample's strain. 使用锁相放大器提供驱动信号,并同时检测对应于样品形变的输出信号。 - 3
It USES a lock-in amplifier for testing the signal and a personal computer for automatic data scanning, collecting and processing. 利用锁相放大器追踪测量信号,微机自动扫描、采集和处理数据。
|