...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 ...
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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。
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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;
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Lock in amplifier 锁相放大器 ; 锁定放大器 ; 锁定放年夜器
lock-in-amplifier 锁定放大器
Precision Lock-in Amplifier 锁相放大器 ; 精密锁相放大器
Lock-In Amplifier Modules 锁相放大器模块
digital Lock-in Amplifier 数字锁相放大器
Wide Bandwidth DSP Lock-in Amplifier 宽频带数字锁相放大器
Dual Phase DSP Lock-in Amplifier 锁相放大器
lock-in amplifier detection 锁相放大器检测
lock- in amplifier 锁定放大器
The correlator, one of the main part in lock-in amplifier, has been designed by using FPGA(Field programmable gate array). Distributed feedback laser diode (model: AB6A1052J510F) with central wavelength 1650nm is used in this research.
采用了FPGA(现场可编程门阵列)来实现锁相放大器中相关器的设计。
参考来源 - 瓦斯浓度二次谐波检测相关技术研究Presentedthe detailed system components including lock-in amplifier, weak signal measurement circuit and microcomputer controlled circuit.
给出了系统详细的以锁相放大器为核心的微弱信号检测电路和微型计算机控制电路。
参考来源 - 基于光谱吸收光纤甲烷气体传感系统的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The optical signal was amplified by a lock-in amplifier.
光信号用锁定放大器放大，进行动态测量。
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。
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。
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