1) 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。
2) 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。
3) digital lock-in-amplifier(DLIA)
数字锁相放大(DLIA)
4) 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。
5) lock-in amplifier
锁相放大器
1.
Harmonics Detection With a Digital Lock-in Amplifier Controlled by Computer;
对数字锁相放大器远程控制的谐波探测
2.
Study on Key Technique of Digital Lock-in Amplifier;
数字锁相放大器关键技术研究
3.
The measurement system of magnetomechanical coupling coefficient for giant magnetostrictive materials has been built by using a lock-in amplifier, according to the measurement theory.
根据磁机械耦合系数的测量原理,利用锁相放大器建立了磁机械耦合系数测量系统,并应用该系统测量了巨磁致伸缩材料的磁机械耦合系数。
6) phase-locked amplifier
锁相放大器
1.
Serial Communication Design Between SR830 phase-locked amplifier and PC Based on VB;
基于VB的SR830锁相放大器与PC机间串行通讯设计
补充资料:锁相放大器
分子式:
CAS号:
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。
CAS号:
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。
参考词条