The output of a measurement device (sensor/transducer) is in the mV range. The data acquisition system has an input range of 0 V to 10 V. You have found that the measurement device's output is 135 mV at nominal. You need to take full advantage of the voltage range of the data acquisition system, so you decide the transducer's voltage into the DAQ is 6.85 V.

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PROBLEM 5:
The output of a measurement device (sensor/transducer) is in the mV range. The data
acquisition system has an input range of 0 V to 10 V. You have found that the
measurement device's output is 135 mV at nominal. You need to take full advantage of the
voltage range of the data acquisition system, so you decide the transducer's voltage into
the DAQ is 6.85 V.
To implement a signal conditioning circuit, you decide to use an inverting op amp
configuration. You build the circuit and test it with a digital voltmeter.
a. Determine the amplifier gain.
b. Determine R₂ if R₁ is 470 02.
c. Draw the voltmeter's leads such that the meter reads 6.85 V.
R₁
1+
R₂
eo
+
6.85 V
Transcribed Image Text:PROBLEM 5: The output of a measurement device (sensor/transducer) is in the mV range. The data acquisition system has an input range of 0 V to 10 V. You have found that the measurement device's output is 135 mV at nominal. You need to take full advantage of the voltage range of the data acquisition system, so you decide the transducer's voltage into the DAQ is 6.85 V. To implement a signal conditioning circuit, you decide to use an inverting op amp configuration. You build the circuit and test it with a digital voltmeter. a. Determine the amplifier gain. b. Determine R₂ if R₁ is 470 02. c. Draw the voltmeter's leads such that the meter reads 6.85 V. R₁ 1+ R₂ eo + 6.85 V
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