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In the resistance strain gauge arrangement of Fig. 4.72 strain gauge resistance R1=R2=R3=R4= 120ΩEb=9V. If the output voltage of the bridge is 20mV, find the value of force applied to the strip. Thickness t of the strip =1mm. Width b of strip =10mm. Young’s modulus E of strip ma– Read more
A strain gauge is bended to a beam which is 12 cm long and has a cross-sectional area of 3.8 cm2. The unstrained resistance and gauge factor of the strain gauge are 220 and 2.2 respectively. On the ...Read more
An electronic device dissipating 50 W is attached to the inner surface of an isothermal cubical container that is 120 mm on a side. The container is located in the much larger service bay of the space shuttle, ...Read more
A simple electrical strain gauge of resistance 120Ω and having a gauge factor 2 is bond to steel having an elastic limit stress of 400MN/m 2 and modulus of elasticity is 200G N/m. Calculate the change in resistance. ...Read more
A single strain gauge having resistance of 130 Ω is mounted on a steel cantilever beam at a distance of 0.12m from the free end. The beam dimensions are 25 cm (length) x 2.0 cm (width) x 0.3 ...Read more
A resistance wire strain gauge with a gauge factor of 2 is hounded to a steel structure member is subjected to a stress of 120 MN/m². The modulus of elasticity of steel is 200 GN/m². Calculate the percentage ...Read more
A second order pressure transducer has a natural frequency of 1000 rad/sec and damping ratio of 0.29. Its static sensitivity is 0.02 V/bar. Using Fourier transforms method; plot the frequency response of the input signal and the output ...Read more
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A capacitive transducer consists of two plates of diameter 2.2 cm each, separated by an air gap of 0.25mm. Find the displacement sensitivity.
A quartz crystal has charge sensitivity of 2 pC/N. Its dielectric constant is 4.4 and Young’s modulus is 9×10¹⁰ Pa. Find the voltage sensitivity constant.
