1、 电子信息专业英语工业和信息产业工业和信息产业 “十二五十二五”规划教材规划教材 主编 高立新电子工业出版社1Chapter 4 Electronic Instrument & Measurement 2Chapter 4 Electronic Instrument & Measurement 3adjustvt. 校准;调整,使校准;调整,使适合适合readingn.读数;读物;阅读读数;读物;阅读leadn. 引线;铅;引线;铅; vt. 领导;引导领导;引导socketn. 插座;插座; vt. 给给配插座配插座breadboardn. 面包板;电路试验板面包板;电路试验板breakvt
2、. 打破;中断;打破;中断;n. 休息休息sensorn. 传感器传感器illuminationn. 照明;照度;启发照明;照度;启发covern. 盖子;封面;盖子;封面; vt. 覆盖覆盖multimetern. 万用表万用表metern. 仪表;米;仪表;米; v. 用表计量用表计量measuringn. 测量测量adj. 测量用的测量用的needlen. 针;指针;针;指针; vt. 用针缝用针缝scalen. 刻度;天平;规模刻度;天平;规模liquid crystal display液晶显示液晶显示autorange自动量程自动量程proben. 探针;调查;探针;调查; v. 探
3、测探测 knobn. 把手把手Chapter 4 Electronic Instrument & Measurement 4 Figure 4-1 Analog multimeter Figure 4-2 Digital multimeterChapter 4 Electronic Instrument & Measurement 5 Figure 4-3 Measure voltage Figure 4-4 Measure voltage in a light sensor circuitChapter 4 Electronic Instrument & Measurement 6Figur
4、e 4-5 Measure light sensor resistance Figure 4-6 Measure currentChapter 4 Electronic Instrument & Measurement 71 A multimeter is an electronic measuring instrument that combines voltage, current and resistance measurement functions in one unit:that引导定语从句,修饰引导定语从句,修饰instrument。句子可以。句子可以翻译为:万用表是一种将电压、
5、电流、电阻测量功能结合在一个单元中的电子测量仪器。翻译为:万用表是一种将电压、电流、电阻测量功能结合在一个单元中的电子测量仪器。2 Analog multimeters have a needle moving along a scale:moving along现在分词短语作状语,现在分词短语作状语,表示表示needle的行为。模拟万用表有一个指针沿着刻度盘移动。的行为。模拟万用表有一个指针沿着刻度盘移动。3 The central knob has fewer positions and all you need to do is to switch it to the quantity
6、you want to measure:all you need to do主语从句。主语从句。you want to measure定语从句修饰定语从句修饰quantity。句。句子可以翻译为:中央旋钮有几个位置,所有你需要做的是,切换旋钮到你想要测量值)的位置。子可以翻译为:中央旋钮有几个位置,所有你需要做的是,切换旋钮到你想要测量值)的位置。4 The four resistors are connected in series:四个电阻串联连接。:四个电阻串联连接。5 The multimeter is connected in parallel between the two poi
7、nts where the measurement is to be made:where the measurement is to be made从句修饰从句修饰the two points。句子可以翻译为:万用。句子可以翻译为:万用表并行连接到要测量的两点之间。表并行连接到要测量的两点之间。6 What happens to the output voltage of the light sensor circuit when you cover the light sensor with your hand:What引导疑问句。句子可以翻译为:当你用手盖住光传感器时,对于光传感引导疑问
8、句。句子可以翻译为:当你用手盖住光传感器时,对于光传感器电路的输出电压会发生什么?器电路的输出电压会发生什么?Chapter 4 Electronic Instrument & Measurement 8amplituden. 振幅;广阔;充足振幅;广阔;充足peak-peak峰峰值峰峰值 ;正负峰间隔值;正负峰间隔值tracen. 踪迹,痕迹;踪迹,痕迹;v. 追踪追踪function generator信号(函数)发生器信号(函数)发生器waveformn. 波形波形sinen. 正弦正弦squaren. 正方形;平方;广场正方形;平方;广场triangularadj. 三角形的三角形的a
9、ttenuatorn. 衰减器衰减器oscilloscopen. 示波器示波器investigatev. 调查;研究调查;研究paneln. 仪表板;座谈小组仪表板;座谈小组graphn. 图表;曲线图;图表;曲线图;vt. 用图表示用图表示verticaladj. 垂直的;垂直的;n. 垂直线垂直线axisn. 轴;轴线轴;轴线horizontaladj. 水平的;地平线的;水平的;地平线的;n. 水平水平intensityn. 亮度;强度;紧张亮度;强度;紧张focusn. 焦点;焦距;焦点;焦距; v. 使聚焦使聚焦spotn. 斑点;地点;斑点;地点; vt. 用灯光照射用灯光照射Ch
10、apter 4 Electronic Instrument & Measurement 9Figure 4-7 Panel of an oscilloscopeChapter 4 Electronic Instrument & Measurement 10 Figure 4-8 V/t graph Figure 4-9 Apply a signal to the input terminal Chapter 4 Electronic Instrument & Measurement 11 Figure 4-11 The trace of a signal on the screen Figur
11、e 4-12 Voltage amplitude and time period Figure 4-10 Control button on an oscilloscope Chapter 4 Electronic Instrument & Measurement 12Figure 4-13 Panel of a function generator Figure 4-14 Function generator and oscilloscope Chapter 4 Electronic Instrument & Measurement 131 to check that each block
12、is operating as expected and is correctly linked to the next:to check与与to monitor并列,作为并列,作为is补足语。补足语。that引导名词从句。句子可以翻译为:确认每一模块如预期引导名词从句。句子可以翻译为:确认每一模块如预期一样工作,正确地连接到下一个(模块)。一样工作,正确地连接到下一个(模块)。2 a graph of voltage against time:一个电压对应时间的图形。:一个电压对应时间的图形。3 Apply a signal to the input terminal:施加一个信号到输入端。
13、:施加一个信号到输入端。4 The TIME/DIV control determines the horizontal scale of the graph which appears on the oscilloscope screen:这个:这个“时间时间/格格”控制(旋钮)决定出现在示波器屏幕图形的水平刻度。控制(旋钮)决定出现在示波器屏幕图形的水平刻度。5 where they are used as a signal source to test a circuit:where引导状语从句。句子可以翻译引导状语从句。句子可以翻译为:在那里,它们(信号发生器)被用作信号源来测试电路。
14、为:在那里,它们(信号发生器)被用作信号源来测试电路。6 By clicking , selecting and setting, the generator outputs a 1kHz sine waveform:动名:动名词短语作状语,主语词短语作状语,主语generator,谓语,谓语output。句子可以翻译为:通过点击频率范围。句子可以翻译为:通过点击频率范围1 k按钮,选按钮,选择一个正弦波信号,设置衰减开关为择一个正弦波信号,设置衰减开关为0分贝,信号发生器输出分贝,信号发生器输出1千赫兹正弦波形。千赫兹正弦波形。Chapter 4 Electronic Instrument
15、& Measurement 14microphonen. 麦克风,扩音器麦克风,扩音器audio signal音频信号音频信号voltage divider分压器分压器minus sign负号,减号负号,减号upside down上端朝下;颠倒上端朝下;颠倒invertvt. 使使反转;使反转;使颠倒颠倒 observationn. 观察观察theoreticaladj. 理论的理论的analysisn. 分析;分解分析;分解Chapter 4 Electronic Instrument & Measurement 15 Figure 4-15 Microphone Figure 4-16 M
16、icrophone circuit Figure 4-17 Measure the voltage Figure 4-18 Check output waveform Chapter 4 Electronic Instrument & Measurement 16Figure 4-19 741 op-amp Figure 4-20 Package of 741Figure 4-21 Audio amplifier circuit Figure 4-22 Circuit on the breadboardChapter 4 Electronic Instrument & Measurement
17、171 intended to develop your circuit design skills:作为整个句子的状语(补足语),说明目的。:作为整个句子的状语(补足语),说明目的。句子可以翻译为:为了发展你电路设计技能。句子可以翻译为:为了发展你电路设计技能。2 giving you experience of using the oscilloscope to monitor signals in a circuit:并列作为整个:并列作为整个句子的状语(补足语),说明目的。句子可以翻译为:给你使用示波器在电路中监控信号的经句子的状语(补足语),说明目的。句子可以翻译为:给你使用示波器在
18、电路中监控信号的经验。验。3 you need to provide a voltage across it using a voltage divider circuit:您需要使用分压电路提:您需要使用分压电路提供给它两端的电压。供给它两端的电压。4 Adjust the setting properly until the shape of the signals is clear.:适当地调整设置,直到信:适当地调整设置,直到信号的形状变清楚。号的形状变清楚。5 The way in which this particular op-amp circuit works allows y
19、ou to choose the voltage gain according to the formula:in which引导定语从句,修饰引导定语从句,修饰The way。句子可以翻译为:这个特殊。句子可以翻译为:这个特殊的运算放大器电路工作方式,让你根据公式选择的电压增益。的运算放大器电路工作方式,让你根据公式选择的电压增益。6 Do your observations using the oscilloscope confirm the above theoretical analysis?:你使用?:你使用示波器观察到的结果证实了上述理论分析吗?示波器观察到的结果证实了上述理论分析
20、吗?Chapter 4 Electronic Instrument & Measurement 18Chapter 4 Electronic Instrument & Measurement 191breadboard2panel 3microphone 4multimeter 5oscilloscope 6audio signal 7liquid crystal display 8function generator 9theoretical 10adjust 11axis12formula 13reading 14voltage 15figure 16illumination 17horizontal 18analysis 19socket 20waveform 21minus sign 22cover 23triangular 24square 25observation 26peak-peak 27op-amp 28vertical 29attenuator 30mega-ohm