impedance amplifier 中文意思是什麼

impedance amplifier 解釋
阻抗放大器
  • impedance : n. 【物理學】阻抗。 acoustic impedance聲阻抗。
  • amplifier : n. 1. 【電學】擴大器；擴音器。2. 放大鏡；放大器。
  1. If the node is at, or near to, ground then a grounded guard ring will be appropriate, if it is at some other potential it may be necessary to use a high input impedance buffer amplifier, with its input connected to the node, to force the guard ring to the node potential

    如果被保護的節點的電位是（或接近）零電位，採用地線保護環最為合適；如果節點電位是其他值，那麼可以用高輸入阻抗放大器組成緩沖器，輸入端連接該節點，輸出端連接保護環。
  2. Impedance plethysmograph amplifier

    阻抗式肢體容積放大器
  3. We have designed different measurement instruments according to the methods. the instrument used to measure electrode is a high precision multi - channel system constructed with a iaadc as the core and high input impedance amplifier and low input current multiplexer

    對于硫屬玻璃電極，我們設計了以高精度的adc為核心，配以高輸入阻抗低噪聲的前置放大器和低漏電流多路模擬開關的多路精密電極測量系統。
  4. The fact that most of these topologies need laser - trimming technique to improve the match precision to reach high cmrr is found after investigating several instrumentation amplifier topologies. in this paper, a new style instrumentation amplifier topology with current processing mode based on ccii and impedance amplifier is designed and realized

    由於本論文所使用的國內工藝線沒有激光調阻技術，因此本文選擇了一種近年來新出現的一種新型儀表放大器電路結構，即使用第二代電流傳輸器（ ccii ）和跨阻放大器組成的電流模儀表放大器。
  5. This is a low impedance discrete level control which sits between the preamp active circuitry and the input to your power amplifier

    這是一個位於前級有源電路和后級放大器輸入端之間的低阻抗的音量控制。
  6. According to the eer theory, using the amplified envelope signal as the power supply of the class - d amplifier, the envelope will modulate the magnitude of the rf signal. the modulated impulse rf signal is added to the impedance match circuit, so the amplified am signal is achieved

    將放大的包絡信號作為class - d載頻放大器的電源，根據eer原理， class - d載頻放大器輸出載頻信號的幅度將受到包絡信號的線性調制，達到同時實現對載頻信號的放大和am調制的目的。
  7. Become a kind of new electronics circuit - current - mode circuit. it is replacing the traditional design method of the voltage - mode in the high frequency high - speed signal processing realm 。 this thesis mainly discussed the modified second - generation current conveyors based on the current - mode kinds of new cuicuit components, they are stronger modified standard current - mode parts in fuctions on this foundation. mainly including the modified differential difference current conveyor ( mddccii ) 、 the fully balanced second generation current conveyor ( fbccii ) 、 ( full balances ) four - terminal floating nullor ( fbftfn ) and the current differencing buffered amplifier ( cdba ), they are all function very strong standard current - mode parts, they all can provide some circuit functions of better than general operation amplifier, because they have the voltage importation and the current importation, therefore use it since can carry out the voltage - mode signal processing circuit expediently, can also carry out the current - mode signal processing circuit expediently, and have to increase the benefit bandwidth to accumulate more widely than the voltage - mode, but have their advantages more according to the current - mode filter of the modified current conveyor, because it constitutes in brief, the filter wave function is stronger and they are better than in general use operation amplifier of many advantages, be easy to composing for example 、 high speed 、 frequency bandwidth 、 the power supply voltage requests low 、 consume small, the impedance is different from etc. advantages, otherwise they have biggish dynamic range, and flexible circuit synthesize, so they are the best active parts

    從第二代電流傳輸器ccii入手，重點研究了以下幾種改進型的第二代電流傳輸器:改進的差動差分電流傳輸器mddccii 、全平衡第二代電流傳輸器fbccii 、多輸出四端浮地零器ftfn 、全平衡四端浮地零器fbftfn 、電流差分緩沖放大器cdba的電路結構及其模型。然後在此基礎上系統地研究了基於這幾種改進型的第二代電流傳輸器的濾波器的設計方法，主要方法和結果如下:利用mddccii設計了差分式連續時間電流模式低通、帶通濾波器;電流模式跳耦結構考爾低通濾波器;利用fbccii設計了帶通二階節濾波器及電流模式雙二階通用濾波器;設計了基於多輸出端ftfn的電流模式二階通用濾波器電路;通過數字化開關選擇的基於fbftfn的電流模式通用濾波器;設計了基於最少個數電流緩沖放大器（兩個cdba ）的多功能通用電流模式濾波器及其在非理想因素情況下分析。設計濾波器的主要方法是採用級聯設計、運算模擬（信號流圖法）和反饋設計（跳耦法） 。
  8. A resolution method in software is applied to calibrate zero point and full scale of the circuit. software approach to nonlinear correction for sensor and circuit is presented. therefore system error is eliminated, and measurement accuracy of temperature is improved. the signal of acidity electrode is detected by a differential amplifier circuit, which consists of operational amplifiers tlc2254 with high input impedance and low drift

    採用橋路和單運放差動放大電路對溫度傳感器信號檢測放大，軟體校正溫度傳感器和測量電路的非線性，軟體校準測量電路的零點和滿度，消除測量電路的系統誤差，提高補償溫度的測量精度；採用高阻、低漂移運放tlc2254組成高阻差動放大電路用於酸度電極信號測量。
  9. In the design and debugging process we found that two different caps with parallel connection may make the amplifier instability. with the analyses of the nonideal cap molding we found that the response curve of two different caps with parallel connection has a saltation whose impedance is infinity and at this pot the amplifier is easy to oscillate. than some suggestion of the use of cap in amplifier design is presented

    在放大器的設計、調試過程中發現兩個不同容值的電容並聯會帶來電路的潛在不穩定，對實際電容，即帶有寄生電感和寄生電阻的電容，建模、分析后發現，不同容值的電容直接並聯其響應曲線會有一個阻抗值為無窮大的突變點，該突變點可能會引起電路的自激。
  10. Technically, the damping factor is the specified load impedance ( in use, that ' d be the speaker system ) divided by the amplifier ' s output impedance

    技術上，阻尼因子就是指定的負載阻抗（實踐中，也就是揚聲器系統）除以放大器的輸出阻抗。
  11. Technically, the damping factor is the specified load impedance ( in use, that ' d be the speaker system ) divided by the amplifier ' s [ i ] output impedance [ / i ]

    技術上，阻尼因子就是指定的負載阻抗（實踐中，也就是揚聲器系統）除以放大器的輸出阻抗。
  12. Owing to weak output signals integrated amplifier is designed, which is characteristics of shorter wires, higher input impedance, higher common mode rejection ratio and series mode rejection ratio, smaller zero shift and temperature shift

    由於輸出信號微弱，採用短線路傳輸，高輸入阻抗，共模抑制比和串模抑制比高，溫漂和零漂小的集成運放電路。
  13. One of the things about amplifiers that affects how they can drive a speaker system is the amplifier ' s output impedance

    輸出阻抗是能夠影響放大器如何推動揚聲器系統工作的諸多因素之一。
  14. Two types of power amplifier for measuring speaker impedance curve were analysed

    摘要分析了2種應用於測量揚聲器阻抗曲線的功率放大器。
  15. Transistor hi - fi power amplifier, the output impedance is low, can actuate the speaker well

    高速晶體管hi - fi功率放大器，輸出阻抗低，能更好地驅動揚聲器。
  16. One of the things about amplifiers that affects how they can drive a speaker system is the amplifier ' s [ b ] output impedance [ / b ]

    輸出阻抗是能夠影響放大器如何推動揚聲器系統工作的諸多因素之一。
  17. If the speaker needs more current ( its overall impedance drops ) then a lower amplifier output impedance will allow that current to be drawn out of the amplifier without causing much of a change in the applied voltage - and that means less distortion

    如果揚聲器需要更大電流（揚聲器的整體阻抗降低） ，那麼一個低輸出阻抗的放大器可以容許在輸出相應電流的同時，所施加的電壓變化更小，這也意味著失真更小。
  18. If the speaker needs more current ( its overall impedance drops ) then a lower amplifier output impedance will allow that current to be drawn out of the amplifier without causing much of a change in the applied voltage - and that means [ i ] less [ / i ] distortion

    如果揚聲器需要更大電流（揚聲器的整體阻抗降低） ，那麼一個低輸出阻抗的放大器可以容許在輸出相應電流的同時，所施加的電壓變化更小，這也意味著失真更小。
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