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1)  Digital Lock-in Amplifier
数字锁定放大器
1.
A measurement system for gas dynamic concentrations based on TDLAS was constructed by using an auto-balanced photoreceiver and a digital lock-in amplifier.
基于自平衡激光接收器和数字锁定放大器构造了TDLAS汽车尾气动态浓度测量系统。
2)  digital lock-in amplifier
数字锁相放大器
1.
Design of digital lock-in amplifier in resonator fiber optic gyro;
谐振式光纤陀螺数字锁相放大器设计
2.
In order to improve the precision of detection signal and predigest the constructive circuit of digital lock-in amplifier(DLIA),oversampling was applied in DLIA and a quick algorithm was presented to deal with the problem of a mass of data caused by oversampling in this paper,which reduced data memory largely and promoted the speed of operation rapidly.
为了提高信号的检测准确度,简化数字锁相放大器(digital lock-in amplifier,DLIA)的构建电路,将过采样技术应用到DLIA中;并对过采样引发的大存储量和大运算量问题,提出一种算法,从而有效地减小了数据的存储量和运算量。
3.
This review gives an introduction to the principle, character and development of the analog and digital lock-in amplifier.
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。
3)  digital lock-in amplifier
数字式锁相放大器
1.
After analyzing the noise in light path,circuit and signal process in the system of optical monitor,the frequency-stabilized chopper,low noise receiving circuit and digital lock-in amplifier with excellent performance of noise restraint are designed.
通过对光学膜厚监控系统中光路部分、电路部分以及信号处理部分的噪声分析,设计出频率稳定性良好的斩光器、低噪声光接收电路和具有较强抗噪声性能的数字式锁相放大器,从而显著地提高了系统的精度和稳定性,为提高镀膜成功率和薄膜性能创造了有利的条件。
4)  lock-in amplifier
锁定放大器
1.
Discussion about the theory and application experiments of lock-in amplifier;
锁定放大器原理及应用实验的教学探讨
2.
Design of the lock-in amplifier for PLC
一种适用于PLC的锁定放大器设计
3.
In this paper,a method of weak signal detection,Lock-in amplifier,is introduced at first briefly,then a type of heterodyne lock-in amplifier is introduced briefly also.
本文首先阐述了一种微弱信号检测方法-锁定放大方法,并在此基础上对采用外差式技术的锁定放大器进行了详细的分析,经实验室测试在输入正弦信号频率为5MHz时,其积分非线性为0。
5)  lock in amplifier
锁定放大器
1.
This article describes the principle and the performance of the Lock in Amplifier and it s application in temperature measuring system.
本文对锁定放大器的功能特性及在温度的精密测量中的应用方法进行了探讨和研究,给出了应用系统框图,并用实验进行了证实。
6)  digital lock-in-amplifier(DLIA)
数字锁相放大(DLIA)
补充资料:锁定放大器
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性质:又称锁相放大器,是一种采用相敏检波器的交流电压表。它可分为三个主要部分:信号通道,低通滤波器和参考通道。它只检出与输入信号同频、同相的信号(包括噪声)。由于噪声的随机性,具有同频、同相噪声的可能性很小,因而大幅度降低。在电化学测量中,它常用来检测微弱信号,广泛应用于交流阻抗法、原位光谱法、极谱法等测量;对于半导体光电化学的研究也是不可缺的工具。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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