preamplifier n.【電學】前置放大器。
n. 【電學】前置放大器。 “analog preamplifier“ 中文翻譯： 模擬前置放大器“antenna preamplifier“ 中文翻譯： 天線前置放大器“audio preamplifier“ 中文翻譯： 前置聲頻放大器; 聲頻前置放大器“audion preamplifier“ 中文翻譯： 聲頻前置放大器“bioelectrical preamplifier“ 中文翻譯： 生物電前級放大器,生物電前置放大器“biophysical preamplifier“ 中文翻譯： 生理前置放大器“camera preamplifier“ 中文翻譯： 攝像機前置放大器,攝像機視頻放大器“cascode preamplifier“ 中文翻譯： 共陰共柵前置放大器“differential preamplifier“ 中文翻譯： 差動前置放大器; 差分式前置放大器“digital preamplifier“ 中文翻譯： 數字式前置放大器“dual preamplifier“ 中文翻譯： 雙前置放大器“ecg preamplifier“ 中文翻譯： 心電前置放大器“eng preamplifier“ 中文翻譯： 眼球震顫電圖前置放大器“galvo-preamplifier“ 中文翻譯： 電流前置放大器“hydraulic preamplifier“ 中文翻譯： 液壓前置放大器“integrated preamplifier“ 中文翻譯： 綜合前置放大器“interchangeable preamplifier“ 中文翻譯： 可互換前置放大器“laser preamplifier“ 中文翻譯： 激光前置放大器“maser preamplifier“ 中文翻譯： 脈塞前置放大器; 脈澤前置放大器; 微波激射前置放大器“microphone preamplifier“ 中文翻譯： 傳聲器前置放大器“ophthalmic preamplifier“ 中文翻譯： 眼科用光刺激器“pa preamplifier“ 中文翻譯： 前置放大器“parametric preamplifier“ 中文翻譯： 參量前置放大器“video preamplifier“ 中文翻譯： 視頻前置放大級; 視頻前置放大器“preamplifier (preamp)“ 中文翻譯： 前置放大器“preamplification“ 中文翻譯： 前置放大作用; 預放大
preannounce |
|
Secondly , compared with some other kinds of comparator structure and based on the preamplifier - latch fast - compare theory , a novel topology of cmos preamplifier latch comparator circuit is presented . considering trade - off between kickback noise and power dissipation , reference resistance value is optimized . according to the encode demands of different stage resolution , clock - control encode circuit is designed 其后,在具體的子adc設計中,對比各比較器類型的優缺點,并基于預放大鎖存快速比較理論,提出一種新型高速低功耗預放大鎖存比較器電路拓撲;根據adc系統所允許的參考電壓最大波動限制,在回饋噪聲對輸入參考電平的影響和功耗之間折衷,確定優化的參考電阻串阻值;根據不同級精度的編碼要求,設計出時鐘控制編碼電路。 |
|
Research on cmos implementation of wlan transceiver rf front - end is done in this thesis . the transceiver uses the most used super - heterodyne architecture , its rf front - end consists of low noise amplifier , down - converter , up - converter , preamplifier , lo buffer and pll frequency synthesizer 本論文研究無線局域網收發機射頻前端的cmos實現，該收發機采用超外差式的拓撲結構，其射頻前端主要由低噪聲放大器、下變頻器、上變頻器、末前級、本地振蕩信號緩沖器和鎖相環型頻率合成器等模塊組成。 |
|
The main performances of the afm were in the advanced level around the world . the probe unit of the horizontal afm includes a photo - electronic detection unit with a particular optical - beam - deflection path , a regulating block of the setpoint of imaging force , the xy scanner and z feedback controller , the coarse adjusting and fine adjusting mechanism for the sample approaching to the probe tip . the powerful circuits of preamplifier , as well as the circuits of xy scanner and z feedback controller were developed 成功研制了臥式afm探頭，包括特有的微懸臂偏轉量的臥式光電檢測系統、 afm成像工作點(即原子力的預設置點)的調節機構、 jy }藝掃描與反饋控制器、樣品的粗調與微調機構;自行研制了高性能的psd前置放大電路、 xy掃描控制電路和z向pid反饋控制電路系統;設計了a / d & d / a控制接口，獨立開發了性能完善的afm掃描與控制軟件系統及功能強大的圖像處理軟件系統。 |
|
By designing the circuit structure of preamplifier and selecting new elements such as ultra low noise operational amplifier and linear opto - coupler , some difficulties in eeg acquisition is overcome and the common mode rejection ratio ( cmrr ) of preamplifier is highly increased . so eeg can be amplified and detected well 通過對前置放大器等電路結構的精心設計,選用超低噪聲的集成運算放大器以及線性光耦合器等新器件,克服了腦電信號采集中經常遇到的一些困難,使前置放大器具有較高的共模抑制比,從而能夠較好地放大檢測出所需的腦電信號。 |
|
The major contents of this part is composed of the basic principle of the if circuit , the affection of the noise performance of the preamplifier to the whole system , the main constitutes of the receiver and their test results and the modulation circuit of the vco , etc . the test result shows that the performance of these circuits is fairly good 內容涉及：中頻電路的基本原理及指標，前置放大電路的噪聲性能對整個系統性能的影響，接收機的主要組成部分(前置放大電路、 agc放大電路)的基本原理、實現方法、測試結果及分析和vco的調制信號產生電路的實現及測試結果。與前端聯調結果表明該部分電路性能良好。 |
|
Based on the research and analysis of system structure of 10 - bit 100msps pipelined cmos adc , according to the system performance , the specifications of sub _ adc is obtained , while the sub _ adc including the preamplifier - latch comparator , the reference ladder resistance and the clock - control encode circuits are discussed in detail 基于對10 - bit100mspspipelinedcmosadc系統結構的分析研究,結合系統性能確定了子adc的指標要求,詳細討論并設計了子adc單元模塊的設計,包括預放大鎖存比較器,參考電阻串和時鐘控制編碼電路。 |
|
This paper is focused on the design of the electronic circuits to improve the system energy resolution , including the design of the preamplifier , the shape amplifier , the base line restorer ( blr ) and the multichannel analyzer ( mca ) , discussing some problems , which should be taken into account in the design 本文著重討論了電子學線路的設計對改善系統分辨率的影響。包括前置放大電路、成形放大電路、基線恢復電路、脈沖幅度多道分析電路的設計及設計中改善系統能量分辨率應注意的問題。 |
|
In the design the main work is to measure egg and draw it on the computer . the preamplifier is the ina128 that is a kind of low - power , precise , instrumented product which is produced by burr - brown company in the circle 本課題主要采集的生理信號是心電信號(也可以考慮加多路其它信號) ，心電信號采集系統的前置放大電路采用burr - brown公司的精密低功耗儀表集成放大器ina128 ，以右腿驅動形式提高共模抑制比，降低50hz工頻干擾。 |
|
In the circuit design for weak signal detection , the preamplifier is employed to magnify the signal from pin . and filter circuit is employed to cut down low - frequency signals then the oil contamination can be gotten with second amplifier 在微弱信號檢測電路設計上，采用前置放大電路對pin光電二極管輸出的微弱電信號進行放大，隨之采用濾波電路對放大后的信號進行低頻濾波，再由二次放大可以得到油液污染度。 |
|
Design ecg collecting module ， which includes preamplifier ， high pass filter , 50hz notch filter , skin electricity filter , low pass filter , electrical level rising and primary amplifier , adc and mcu , real time clock 設計心電采集模塊，包括心電前置放大、高通濾波、工頻陷波、肌電濾波、低通濾波、電平抬升和主放大、 a / d轉換和單片機，實時時鐘。 |
|
Discuss the method to improve the efficiency of collecting signal and signal - noise ration . make the setup of detection device , high voltage supply of pmt and low - noise preamplifier ; doing lif detection experiment to green fluorescent dye 詳細討論了提高熒光采集效率和信噪比的措施，制作了探測機構、光電倍增管的高壓供電電路和前置放大器。 |
|
The preamplifier will drive a low impedance load without alteration in the signal , in fact it can be used as a current source driving a 0 impedance mixer junction without any distortion 這個前級放大器能夠驅動一個低阻抗的負載而不會引起信號的變化，實際上它可以用作一個驅動零阻抗混合節點，而又不產生任何失真的電流源。 |
|
This paper introduces two types of sensitive charge preamplifier for rn measure device , designing method , debugging process and performance ; and it analyzes the conditions which can be applied 摘要介紹了兩種用于氡氣測量裝置的電荷靈敏前置放大器的實例，給出了設計思想、調試過程和技術指標，說明了它們不同的應用場合。 |
|
There are various kinds of the self - oscillations in the preamplifier system of the high power laser facility , the origins of them were analyzed in theory 摘要分析了高功率激光裝置預放大系統內外各種自激振蕩的來源，通過理論計算和實驗驗證提出了各種自激振蕩的抑制方法，并在實踐中得到驗證。 |
|
Super chopper - stabilized amplifier icl7650 is adopted in the preamplifier circuit . double integrate a / d convertor and the a / d convertor in the cpu are adopted in the circuit 在前置放大電路中采用了自穩零運放icl7650 , a / d轉換利用了雙積分式a / d轉換器mc14433和單片機內部的a / d轉換器。 |
|
From the simulation results , we can see that , for the presented cmos preamplifier - latch comparator , its transfer delay time is 231ps , and the power dissipation is 118 . 6 w 時,其回饋噪聲對輸入信號和電阻串參考電壓產生的毛刺峰值分別是6 . 35mv , 1 . 57mv ;各級子adc的總功耗為5 . 57mw 。 |
|
At last , the preamplifier of optical receiver , including the preamplifier ’ s parameter , the selection of circuit type and the design of the preamplifier is discussed 本文還論述了光接收機前置放大器,包括前置放大器的性能參數、電路類型的選擇和前置放大器的設計等。 |
|
Signal channel is composed of photodetection preamplifier and filter circuit , reference channel and correlation demodulator are realized by labview 信號通道由硬件實現,包括光電探測前置放大電路及濾波電路;參考通道及相關解調器部分則利用labview軟件編程實現。 |
|
Detail specification for electronic component . semiconductor integrated circuit - type cd3220cp dual preamplifier with alc 電子元器件詳細規范.半導體集成電路cd3220cp型帶alc雙前置放大器 |