A strain gauge, diaphragm pressure transducer (accuracy: <0.1% reading) is subjected to a pressure differential of 10 kPa. If the output is measured using a digital voltmeter having a resolution of 10 mV and accuracy of better than 0.1% of the reading, estimate the uncertainty in pressure at the design stage. How does this change at 100 and 1,000 kPa? Assume the static sensitivity of the pressure transducer is 1 V/100 kPa.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A strain gauge, diaphragm pressure transducer (accuracy: <0.1% reading) is subjected to a
pressure differential of 10 kPa. If the output is measured using a digital voltmeter having a
resolution of 10 mV and accuracy of better than 0.1% of the reading, estimate the uncertainty in
pressure at the design stage. How does this change at 100 and 1,000 kPa? Assume the static
sensitivity of the pressure transducer is 1 V / 100 kPa.
Transcribed Image Text:A strain gauge, diaphragm pressure transducer (accuracy: <0.1% reading) is subjected to a pressure differential of 10 kPa. If the output is measured using a digital voltmeter having a resolution of 10 mV and accuracy of better than 0.1% of the reading, estimate the uncertainty in pressure at the design stage. How does this change at 100 and 1,000 kPa? Assume the static sensitivity of the pressure transducer is 1 V / 100 kPa.
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