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Ken McFarland Pascal Matengo

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Lab Overview Measure flow of water using three different flow meters Measure flow manually to obtain actual flow rate Use known flow rates and meter reading to construct calibration curves for each meter

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Lab Purpose Gain experience with calibration curves Familiarization with flow meters Gain additional experience with LabView

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Rotameter Simplest type Operator read Height of bob corresponds to rate of flow Height * Constant = Flow Rate Our constant was C ’ m =113

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Orifice Plate Constricts flow to create pressure differential between two sides of plate Pressure differential is proportional to flow rate Create calibration curve as with Rotameter

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Magnetic Flow Meter Most sophisticated meter Easily computer monitored Displays flow rate as a percent of the maximum measureable flow rate Percent is displayed visually on the meter, and as a voltage that is monitored via computer

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Magnetic Flow Meter VI Top is raw voltage VI takes voltage from meter and multiplies it by conversion factor Final output is flow rate in kg/s Bottom is final VI Max flow rate was 2.11 kg/s

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Conclusions Recommendations This lab demonstrated how to use Rotameter and Magnetic flow rate meters Found constants to relate meter readings to flow rates Learned to create calibration curves Read the lab beforehand Think about how to do lab Teamwork Insure all meters are working correctly

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