lock-in amplifiers造句
例句與造句
- Digital lock - in amplifier based on dsp and sampling adc
的數(shù)字鎖定放大器 - Lock - in amplifiers
鎖定放大器 - A computer controls the whole process of measurements by communicating with the lock - in amplifier via rs232 interface
計(jì)算機(jī)通過(guò)rs232接口與鎖相放大器通信，控制測(cè)量的全過(guò)程。 - A lock - in amplifier is used to supply the driving signal and to detect the output signal corresponding to the sample ' s strain
使用鎖相放大器提供驅(qū)動(dòng)信號(hào)，并同時(shí)檢測(cè)對(duì)應(yīng)于樣品形變的輸出信號(hào)。 - Photoelectric detecting circuit is constituted of four parts , i / v conversion , lock - in amplifier , low - pass filter and operation
光電檢測(cè)電路由四部分組成,分別是i / v轉(zhuǎn)換環(huán)節(jié)、鎖相放大環(huán)節(jié)、低通濾波環(huán)節(jié)、運(yùn)算環(huán)節(jié)。 - It's difficult to find lock-in amplifiers in a sentence. 用lock-in amplifiers造句挺難的
- The core of the lock - in amplifier used to measure response of laps consists of a high precision modulator / demodulator and dds as signal generator
對(duì)于光尋址電位傳感器，我們?cè)O(shè)計(jì)了以高精度調(diào)制解調(diào)器件和數(shù)字頻率合成器件為核心的模擬鎖相放大器。 - For the signals are very weak , the lock - in amplifier is employed to extract the signals in the circuit design . it can inhabit the noise in the most and maximize the signal - to - noise
因?yàn)樾盘?hào)十分微弱，所以在電路設(shè)計(jì)上采用鎖相放大器來(lái)提取信號(hào)，最大限度的抑制噪聲，提高系統(tǒng)的信噪比。 - Using the home made device , the relationship between the 3 voltage and the heating frequency is obtained by lock - in amplifier , thus the thermal conductivity of the fluid is calculated with the least square fit method
自行研制了流體導(dǎo)熱系數(shù)的測(cè)量裝置，采用鎖相放大器獲取3電壓與頻率的關(guān)系，并借助最小二乘法，算出待測(cè)試樣的導(dǎo)熱系數(shù)。 - The experiment results show that : the frequency stabilization of the optimized doppler modulator has already reached rms error about 1 % , which could meet the need of reference signal of the lock - in amplifier
實(shí)驗(yàn)結(jié)果表明，經(jīng)過(guò)優(yōu)化后的多普勒調(diào)制器的輸出調(diào)制信號(hào)頻率的相對(duì)標(biāo)準(zhǔn)誤差達(dá)到了1 %左右，能夠滿(mǎn)足鎖相放大器對(duì)輸入?yún)⒖夹盘?hào)頻率穩(wěn)定度的要求。 - Choosing y type reflection fiber optic detector , this thesis create a tiny displacement - detecting sensor that is made up of led ( light emitting diode ) , fiber optic detector , electric eye , lock - in amplifier , display and other electro circuits
本論文采用y型反射式光纖探頭設(shè)計(jì)制作了一種微位移測(cè)量裝置，它主要由發(fā)光二極管、光纖探頭、 、鎖相放大器、顯示器及相關(guān)電路組成。 - At the same time , this thesis also did the reasonably research about the weak light telecommunication technique , and designed an optic - electricity signal handling system , in which the lock - in amplifier is the core . the gain of this system could be 10 ^ 6 , and snr ( signal - to - noise ) could be 1000 : 1
同時(shí)，對(duì)微弱光電信號(hào)處理技術(shù)也做了比較深入的研究，設(shè)計(jì)制作出以鎖相放大器為核心的光電信號(hào)處理系統(tǒng)，放大倍數(shù)可達(dá)10 ~ 6 ，信噪比提高到1000 ： 1 。 - The instrument is integrated with a multi - channel high precision open circuit potential measurement system for the ion selective electrode and a potentiostat used in voltammetry , an analog lock - in amplifier is also presented to measure the response of light addressable potential sensor
對(duì)于不同的測(cè)量技術(shù)，儀器中集成了用于測(cè)量電極的多通道高精度開(kāi)路電壓測(cè)量系統(tǒng)和用于溶出伏安法測(cè)量的多路電化學(xué)測(cè)量系統(tǒng)，以及用于測(cè)量光尋址電位傳感器的鎖相放大器。 - According to the principle of correlation detection , an automatic measurement system for extinction ratio of polarizer consisted of monochromator and dsp lock - in amplifier and compurer is designed not only to eliminate the influence on measurement accuracy caused by drift of intensity of light source but also to obatain approximate extinction spectrum
摘要基于相干檢測(cè)原理設(shè)計(jì)了一套由單色儀、數(shù)字鎖相放大器和計(jì)算機(jī)聯(lián)合使用的透射式偏光鏡消光比智能化測(cè)試實(shí)驗(yàn)系統(tǒng)，采用雙頻雙光路分光單探測(cè)器接收鎖相放大器分離信號(hào)比對(duì)法進(jìn)行源補(bǔ)償測(cè)量，克服了光源光強(qiáng)漂移所帶來(lái)的影響；實(shí)現(xiàn)了可見(jiàn)光區(qū)消光比的精確自動(dòng)測(cè)量，而且可以測(cè)得近似的消光光譜。 - Based the research on the laser beam drift feedback control technique , analysing the beam drift and its frequency components , a laser beam directional stability method is studied in the thesis in detail , with its measurement and control circuit system that combines the laser beam intensity modulation and the beam drift feedback control technique . in this method , at first the laser beam intensity is modulated with the acoustooptic modulator , then the lock - in amplifier is applied to detect and demodulate the modulating signal , at last a feedback control signal is generated by the dsp control circuit at last , including : 1
本文在原有的激光光束漂移量反饋控制準(zhǔn)直技術(shù)的基礎(chǔ)上,對(duì)光束漂移量信號(hào)的數(shù)據(jù)和頻譜進(jìn)行了分析,重點(diǎn)研究了一種集聲光調(diào)制光強(qiáng)與光束漂移量反饋控制準(zhǔn)直技術(shù)于一體的激光光束方向穩(wěn)定方法及其測(cè)控電路系統(tǒng),該方法通過(guò)聲光調(diào)制實(shí)現(xiàn)光強(qiáng)調(diào)制,接著通過(guò)鎖相放大電路檢測(cè)并解調(diào)調(diào)制信號(hào),然后通過(guò)dsp控制電路進(jìn)一步對(duì)光束的漂移量進(jìn)行反饋控制。