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Unformatted text preview: 32b . Given : Consider the circuit shown. • R 1 = 15.0 k Ω • R 2 = 45.0 k Ω • C = 0.20 μ F • V in = sine wave with f = 250 Hz and an amplitude of 2.0 V. To do : Calculate the amplitude (in volts) of output voltage V out . Solution : 33a . Given : A quarter-bridge strain gage circuit is used to measure strain in a component of an automobile chassis. • All resistors and strain gages are nominally 120 ohms. • Resistor 2 is replaced by a strain gage with a strain gage factor of 2.05. • The supply voltage to the bridge is 6.00 V. • With no load, the bridge is perfectly balanced. • An axial strain of 350. μ strain is applied such that both strain gages are in tension. To do : Calculate the output voltage in mV. Give your answer to three significant digits. Solution : 33b . Given : A half-bridge strain gage circuit is used to measure strain in a component of an automobile chassis. • All resistors and strain gages are nominally 120 ohms. • Resistors 1 and 2 are strain gages with a strain gage factor of 2.05....
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This note was uploaded on 07/23/2008 for the course ME 345 taught by Professor Staff during the Spring '08 term at Penn State.
- Spring '08