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labview锁相放大器
- 国家仪器设计的labview虚拟锁相放大器
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
sr830
- SR830锁相放大器驱动程序，labview环境-SR830 Lock-in amplifier driver，SR830 Lock-in amplifier driver，SR830 Lock-in amplifier driver
simplex_wireless_calling_system
- 单工无线呼叫系统分发射和接收两大部分。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。接收部分以超大规模AM/FM立体声收音集成芯片CXA1238S为主体，灵敏度、镜像抑制、信噪比等各项性能指标均达
ADPLLdesign
- 全数字锁相原理和设计方法， 用于锁相放大器的设计中， 提供很好的数学模式和基本算法-All-digital PLL theory and design methods for the design of lock-in amplifier to provide a good mathematical model and basic algorithms
219567G_5209Mnl
- 科研试验常用仪器，5209锁相放大器编程手册，可以用该手册对5209锁相放大器变成，非常实用。-Scientific research and test commonly used instruments, programming manuals 5209 lock-in amplifier, you can use the manual to the 5209 lock-in amplifier becomes very useful.
dlia_pro
- 比较快速的正交解调算法，在TMS320LF2407上实现，使用语言C语言，内有论文《一种新型数字锁相放大器的设计及其优化算法》，可以软件实现检测相位差。-Comparison of fast orthogonal demodulation, in TMS320LF2407 to achieve, using the language C language, there are paper, " a new type of digital lock-in amplifier design
methane
- 基于数字锁相放大器的甲烷谐波检测虚拟系统-Based on the digital lock-in amplifier virtual system harmonic detection of methane
motion-control
- 该文件中的VB模块同时实现了运动平台的控制和锁相放大器的数据采集功能，其中分别对两部分的仪器进行初始化，然后在运行模块中进行调用，最终实现协同工作-VB module in the file of the moving platform while achieving lock-in amplifier control and data acquisition functions, which are the two parts of the apparatus is initialized,
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
guang-sheng-guang-pu
- 中红外光经过甲烷吸收 后，产生的声波信号经麦克风检测，由锁相放大器对信号进行采集并输入计算机进行处理。按信噪比为１计算，得到甲烷的探测极限为１８９ｎｍｏｌ·ｍｏｌ－１。 -The mid-infrared light through the methane absorption, the acoustic signal generated by the microphone detected by a lock-in amplifier of the signal acquisition
sr830
- 锁相放大器数据采集，可以自己调控所需的电压以及频率-resign data of SR830 through labview
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.
labview
- labview源码，包括锁相放大器，运算放大器，信号发生器，数字示波器，数字电压测试仪等-labview source code, including the lock-in amplifier, operational amplifier, signal generator, digital oscilloscope, digital voltage tester, etc.
WMS
- 此LABVIEW程序可将采用波长调制法探测得到的信号进行二次谐波解调，功能类似于锁相放大器。(he LABVIEW program can demodulate the signals detected by the wavelength modulation method with two harmonics.)
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)
demo
- 利用LabVIEW实现锁相放大器的功能，用于提取特定频率的有用信号的幅值，过滤噪声干扰，可以选择参考信号源为方波/正弦波(An lock-in amplifier built in LabVIEW)
stanford_research_830
- Stanford Research 830 Acquire Measurement 用于锁相放大器的单个参数，多个参数，多点的测量(Stanford Research 830 Acquire Measurement for single parameter, multiple parameter, multi-point measurement for PLA)