Consider the pressure measurement system shown in Figure 3.22. The Wheatstone bridge of the pressure transducer...
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Consider the pressure measurement system shown in Figure 3.22. The Wheatstone bridge of the pressure transducer is initially balanced at p= Patm. Determine (a) the value of R. (in ohms) required to achieve this balanced condition and (b) E, (in V) at this balanced condition. Finally, determine (c) the value of E, (in V) required to achieve E, = 50.5 mV when the pressure is changed to p = 111.3 kPa. Note that Rs() = 100[1 +0.2(p-Patm)], with p in kPa. Tubing Pilot Static Tube 1 R₂ Pressure Sensor Rx R = 250 FIGURE 3.22 +E₁ R = 1000 R = 500 Pressure Transducer (Wheatstone Bridge) 000 Filter 1 Amplifier A/D Board 1 I E Computer Consider the pressure measurement system shown in Figure 3.22. The Wheatstone bridge of the pressure transducer is initially balanced at p= Patm. Determine (a) the value of R. (in ohms) required to achieve this balanced condition and (b) E, (in V) at this balanced condition. Finally, determine (c) the value of E, (in V) required to achieve E, = 50.5 mV when the pressure is changed to p = 111.3 kPa. Note that Rs() = 100[1 +0.2(p-Patm)], with p in kPa. Tubing Pilot Static Tube 1 R₂ Pressure Sensor Rx R = 250 FIGURE 3.22 +E₁ R = 1000 R = 500 Pressure Transducer (Wheatstone Bridge) 000 Filter 1 Amplifier A/D Board 1 I E Computer
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