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发射部分采用锁相环式频率合成器技术
- 发射部分采用锁相环式频率合成器技术, MC145152和MC12022芯片组成锁相环,将载波频率精确锁定在35MHz,输出载波的稳定度达到4×10-5,准确度达到3×10-5,由变容二极管V149和集成压控振荡器芯片MC1648实现对载波的调频调制;末级功放选用三极管2SC1970,使其工作在丙类放大状态,提高了放大器的效率,输出功率达到设计要求。,Part of the launch phase-locked loop frequency synthesizer using technolog
LIA
- Lock-in amplifier in Labview
sr830
- 锁相放大器源码,包括aux output.vi, receive message.vi,send message.vi,sr830.vi-source code of lock-in amplifier,includes the aux output.vi, receive message.vi,send message.vi,sr830.vi
Lock-in-amplifier
- 锁相放大器 微弱信号检测 一些简单的介绍 理论和应用 -Lock-in amplifier
DPLL_REASERCH
- 本课题研制了一种宽频带的数字锁相放大器,可以完成自动增益和相位 可调整,最长积分时间为100s,适合于频率从10Hz到10kHz,幅值从100nV 到10mV的微弱正弦信号检测。测量结果表明,当采样点数N大于8192时, -This project developed a wideband digital lock-in amplifier, can be completed automatically adjustable gain and phase, the longes
reflectivitymeasuring
- 项目软件,对光学样片折射率进行测量。软件实现对旋转台的控制、锁相放大器的采集-Project software, Samples refractive index of the optical measurement. Software to achieve control of the rotary table, the acquisition of the lock-in amplifier, etc.
锁相放大
- 锁相放大器是一种对交变信号进行相敏检波的放大器(The lock-in amplifier is a phase sensitive detection amplifier for alternating signal)
