Exam 17: Understanding Transducers, Sensors, and Conversion in Industrial Processes

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  -Refer to Figure 20-2.Which of these circuits is known as a peak detector? -Refer to Figure 20-2.Which of these circuits is known as a peak detector?

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The typical output for a normally operating thermocouple is in the range of 1 V to 10 V.

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Circuits that contain features such as common-mode rejection, isolation, gain, etc. are called:

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The main purpose of an instrumentation amplifier is to amplify common mode Voltage.

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An active clamping circuit negates the opposite polarity 0.7 V peak by using two diodes in series.

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        (d)   Figure  20 < 1   -Refer to Figure 20-1 (a). If  \mathrm { R } _ { 1 } = \mathrm { R } _ { 2 } = 30 \mathrm { k \Omega }  and the closed loop gain is 450 , the value of the external gain-setting resistor  R _ { G }  is:         (d)   Figure  20 < 1   -Refer to Figure 20-1 (a). If  \mathrm { R } _ { 1 } = \mathrm { R } _ { 2 } = 30 \mathrm { k \Omega }  and the closed loop gain is 450 , the value of the external gain-setting resistor  R _ { G }  is:         (d)   Figure  20 < 1   -Refer to Figure 20-1 (a). If  \mathrm { R } _ { 1 } = \mathrm { R } _ { 2 } = 30 \mathrm { k \Omega }  and the closed loop gain is 450 , the value of the external gain-setting resistor  R _ { G }  is: (d)         (d)   Figure  20 < 1   -Refer to Figure 20-1 (a). If  \mathrm { R } _ { 1 } = \mathrm { R } _ { 2 } = 30 \mathrm { k \Omega }  and the closed loop gain is 450 , the value of the external gain-setting resistor  R _ { G }  is: Figure 20<120 < 1 -Refer to Figure 20-1 (a). If R1=R2=30kΩ\mathrm { R } _ { 1 } = \mathrm { R } _ { 2 } = 30 \mathrm { k \Omega } and the closed loop gain is 450 , the value of the external gain-setting resistor RGR _ { G } is:

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The ac value that is equal to the same dc heating effect is usually called:

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Displacement transducers can be made using a variety of types of optical or electrical circuits.

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RTDs and thermistors both operate on the same principle of resistive changeW ith temperature.

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A voltage limiter that limits both positive and negative peaks uses two zener diodes connected anode to cathode.

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Which of the following is not a temperature sensor?

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An instrumentation amplifier has a high:

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   -Refer to Figure 20-2 (d). If  gm=25 mS  and  \mathrm { R_L }  = 25 \mathrm { k } \Omega  , the voltage gain would be: -Refer to Figure 20-2 (d). If gm=25 mS and RL=25kΩ\mathrm { R_L } = 25 \mathrm { k } \Omega , the voltage gain would be:

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        (d)   Figure  20 < 1   -Refer to Figure 20-1.W hich of these circuits is known as an isolation amplifier?         (d)   Figure  20 < 1   -Refer to Figure 20-1.W hich of these circuits is known as an isolation amplifier?         (d)   Figure  20 < 1   -Refer to Figure 20-1.W hich of these circuits is known as an isolation amplifier? (d)         (d)   Figure  20 < 1   -Refer to Figure 20-1.W hich of these circuits is known as an isolation amplifier? Figure 20<120 < 1 -Refer to Figure 20-1.W hich of these circuits is known as an isolation amplifier?

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Strain gauges are used to detect minute changes in temperature.

(True/False)
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One of the key characteristics of an instrumentation amplifier is its low input impedance.

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        (d)   Figure  20 < 1   -Refer to Figure 20-1.W hich of these circuits is known as a constant-current source?         (d)   Figure  20 < 1   -Refer to Figure 20-1.W hich of these circuits is known as a constant-current source?         (d)   Figure  20 < 1   -Refer to Figure 20-1.W hich of these circuits is known as a constant-current source? (d)         (d)   Figure  20 < 1   -Refer to Figure 20-1.W hich of these circuits is known as a constant-current source? Figure 20<120 < 1 -Refer to Figure 20-1.W hich of these circuits is known as a constant-current source?

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The OTA has a ________ input impedance and a ________ CMRR.

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Basic analog physical parameters such as angular position, temperature, pressure, strain, and flow rate can be measured by What devices?

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If an operational transconductance amplifier (OTA)is used as a nonlinear mixer and an audio signal is mixedW ith an RF signal, the outputW ill be a(n)________ signal.

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