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The pressure tap on the surface of a heat exchanger tube is connected via flexible tubing to a pressure transducer. Both the tubing and the transducer behave as second-order systems. The natural frequencies are 30 rad/s for the tubing and 6280 rad/s for the transducer. The damping ratios are .45 for the tubing and .7 for the transducer. Determine the magnitude ratio and the phase lag for the system when subjected to a sinusoidal forcing having a 100 hz frequency. What, if anything is the problem using this system for this application.
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