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HW1%20Solution

# HW1%20Solution - EEL5225 Principles of MEMS Transducers HW1...

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Principles of MEMS Transducers Page 1 of 4 Prepared by D. Arnold August 30, 2010 EEL5225 Principles of MEMS Transducers HW1 Fall 2010 Semester Assigned: Friday, 8/28 Due: Friday, 9/3 1. From the specification sheet for the Kulite XCS-190 (15 psi model) pressure transducer (see attached), determine the following a. Rated voltage input V input = rated electrical excitation = 10V d.c. b. Nominal sensor power requirements Power = V input I input = V input 2 / R sensor = (10V) 2 / 1kohm = 100 mW c. Sensor sensitivity Full scale output = 200 mV Full scale input = 15 psi S = Full _ scale _ output Full _ scale _ input = 13.33 mV/psi d. MDS assuming a resolution of 0.05 mV for the voltage measurement system (Note the specification sheet lists “Infinitesimal” for resolution) Assuming that the output resolution is limited by rms output voltage noise, Vn = 0.05 mV MDS = Vn S = 3.751x10 -3 psi e. Dynamic range Hence, the minimum pressure signal is limited by the MDS while the maximum pressure in the linear range is determined by the full scale input.

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