n.前級(jí)擴(kuò)大機(jī)；前置增幅器

It still is offerred dog the options such as generator and preamplifier. 它還供給跟蹤發(fā)生器和前置放大器等選件。

The PA7:4 preamplifier is available for J16Quad and J10Quad detectors. 該pa7：4前置供j16quad和j10quad探測(cè)器。

The receiver has been designed and made, including preamplifier,amplifier, filter circuit, AGC, PLL, etc. 設(shè)計(jì)并制作了接收機(jī)電路,包括前放電路,放大電路,濾波電路,自動(dòng)增益控制電路,鎖相環(huán)電路,判決電路等。

This paper presents an up-to-date design of bioelectric preamplifier with low noise- high common-mode-rejection ratio (CMRR) and high impedance. 本文介紹一種利用負(fù)反饋原理由集成運(yùn)算放大器構(gòu)成的低噪聲、高共模抑制比、高輸入阻撫前置放大器。

The key to the design of feeble signal sampling system lies in the designing of ultra low noise preamplifier. 設(shè)計(jì)超低噪聲前置放大器是設(shè)計(jì)微弱信號(hào)采集儀器時(shí)不可回避的技術(shù)問(wèn)題。

Main amplifier is used for amplifying the output signal of preamplifier into digital voltage level. 主放大器把前置放大器的輸出信號(hào)放大到數(shù)字邏輯電平,并且保持?jǐn)?shù)字電平的恒定,以實(shí)現(xiàn)限幅的功能。