Pressure gage lab report

Pressure gage lab report - Pressure Gage Calibration Gage...

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Pressure Gage Calibration Gage Number CF004 9/25/2007 Report by Your Name ME 101, Section 2 Lab B Team Members Team Members names and your name
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Pressure Gage – Calibration Report Introduction The purpose of this experiment is to check to see if pressure gage CF004 if precise and accurate. This is accomplished by calibration using a Dead Weight Pressure Calibration System. The As-Test accuracy and precision are determined and reported on percent full scale and max percent error on a scale from 10-100. To increase the gage’s accuracy and usefulness, the calibration experiment curve is plotted, and an empirical equation (the calibration equation) developed. The As-Calibrated accuracy is determined using the calibration equation on both the max percent error and the max absolute error basis on a range from 10-100 psi. The objective of this experiment is to learn. Apparatus and Procedure The apparatus used to calibrate pressure gage CF004 was Dead Weight Pressure Calibrator #M781 and weight set #MC195. The weight set, the calibrated weights that produced known pressure with the Dead Weight Pressure Calibrator piston area. A total weight equivalent to 10 psi was placed on the calibration piston, the volume adjusting screw was turned to raise the piston off the stopper by about ½ in. The weights were spun to break surface tension. The age was read and the data was recorded. Weight was increased to a pressure of 20 psi and the data recording process was repeated. Weight pressure was increased in 10 psi increments up to and including 100 psi. Data acquisition procedure was repeated for each increase in weight. This completes the increase pressure data. An auxiliary weight was added to give a weight greater than 100. It was then removed to give a gage reading of 100 psi. This starts the decreasing pressure series. Pressure was decreased in 10 psi increments to and including 10 psi and the data acquisition procedure that was used for the increasing pressure series is repeated for each 10 psi increment. Results The pressure gage calibration experiment results are shown in Table 1. The As-Tested accuracy and precision was determined from the data and results in Tables 1 and 2 that the gage is precise but inaccurate. The gage was tested at a 2% full-scale accuracy and a 20% max error from a scale of 10-100 psi. See sample calculation details. The increasing accuracy estimation calculation experiment was plotted and graphed on
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This essay was uploaded on 04/19/2008 for the course ME 101 taught by Professor Deller during the Spring '08 term at Bradley.

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Pressure gage lab report - Pressure Gage Calibration Gage...

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