1、Lesson 15 Introductions To Sensors New words and phrases :1. principle n.原則，原理2. property n.特性，性能，屬性3. multimeter n.物萬用表4. megohm n.兆歐姆5. match vt. 和相稱6. amplifier n.放大器return*專業(yè)英語27. detector n.探測器，檢驗器8. excitation n. 刺激，激勵9. Kelvin adj.物絕對溫標的10.thermoelectric adj.熱電的11.polarity n.兩極，極性12.resistivi

2、ty n.抵抗力13.silicon n.化硅U14.robustness n. 強壯，強健15.cryogenic adj.低溫的，致冷的*專業(yè)英語316.semiconductor n.電半導(dǎo)體17.strain vi.扭歪，彎曲18.gauge n.測量儀器，規(guī)，表，計19.amount n.總數(shù)，總額，數(shù)量20.serpentine adj. 彎彎曲曲的21.resin n.樹脂，合成樹脂22.monitor n.監(jiān)聽器，監(jiān)視器23.geometric adj.幾何(學)的24.piezoresistive adj.壓阻的*專業(yè)英語425.capacitance n.電電容，電流容量2

3、6.meter n. 計量器，儀表C27.oscillator n.振蕩器，振動器28.ramp n.斜面，斜坡29.generatorn.發(fā)電機，發(fā)生器C30.threshold n.開始，開端，極限31.stray vt.偏離32.impedance n.阻抗33.terminal n.末端，終點，極限C*專業(yè)英語534.coaxial adj.數(shù)同軸的35dissipative adj.分散的36.linear adj.數(shù)一次的，線性的37.diaphragmn.解橫隔膜C38.quartz n.礦石英U39.schematic adj.概要的*專業(yè)英語6Notes(1) An RTD

4、consists of a coil of wire, or a thin-film, with four-wire electrical connections supported in a way that is a compromise between robustness and thermal time-constant. *專業(yè)英語7一個電阻式溫度探測器包括一個線圈或薄碳膜，采用四線電子連接，并且是耐磨和恒溫的一種折衷。句中that引導(dǎo)的賓語從句修飾動詞support的賓語way。*專業(yè)英語8(2) A simple hand-held meter and some digital

5、 multimeters use a two-wire technique to measure capacitances in the range 100 pF to 1 F with an accuracy of about 1%.一個簡單的手持儀表和幾個數(shù)字萬用表可通過使用兩線技術(shù)測量范圍從100pF到1F的電容，同時可達到1%的精度。介詞短語in the range修飾動詞measure的賓語capacitances。*專業(yè)英語9(3) Circuit in Fig.15.5 shows how the influence of the stray capacitance to gro

6、und associated with a piece of coaxial cable can be eliminated by reconnecting its shield to a low impedance node.圖15.5說明了一段同軸電纜對地寄生電容的影響是如何通過將屏蔽線與一個低阻抗點連接而被消除的。省略which的定語從句(that)can be eliminated 修飾賓語 the influence。*專業(yè)英語10(4) The capacitance can be monitored by using it to control the frequency of

7、an oscillator or to vary the coupling of an AC signal.電容能夠通過用它控制振蕩器的頻率或者改變交流信號的偶合而被控制。介詞短語by using it 修飾動詞monitor。*專業(yè)英語11Translating Skills 動詞的翻譯1.轉(zhuǎn)換詞類He objected that the project is not practical.他反對的理由是：這個項目不現(xiàn)實。(動詞轉(zhuǎn)換成名詞，增加“是”充當句子的謂語) *專業(yè)英語122. 引伸詞義The interference worked much instability in the system.干擾給系統(tǒng)造成了很大的不穩(wěn)定性。(據(jù)上下文)*專業(yè)英語133. 轉(zhuǎn)換成份The sun produces in three days more heat than all earth fuels could ever produce.太陽在三天內(nèi)發(fā)出的熱量比地球上所有燃料能發(fā)出的熱量還要多。(同上，謂語轉(zhuǎn)換成定語)*專業(yè)英語144. 轉(zhuǎn)換結(jié)構(gòu)To explore the moons surface, rocket were launched again and again.為了進行月面探測，人們一次又一次地發(fā)射火箭。(動賓轉(zhuǎn)定-中結(jié)構(gòu))*專業(yè)英語155. 增加