Design a signal conditioning circuit for k-type thermocouple

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Reference no: EM13254235

Design a signal conditioning circuit for a K-type thermocouple, which produces output voltage of 0V-5V using a three terminal solid-state temperature sensor for reference junction compensation. The sensitivity of the sensor is 4mV/C. Use 0C and 100C as design base points. (Problem 4.29 p220)

a) Assuming the reference junction temperature TR is zero; derive the expression for signal conditioner output voltage V0 in terms of the thermocouple voltage Vth.

b) When T(r) not 0, develop an expression for V0 in term of measurement junction voltage Vm and reference junction temperature TR, utilizing reference junction compensation.

Sketch a block diagram which implements the solution derived in (b), labeling each block with appropriate name and corresponding gain. Each signal/variable in the diagram must be identified.

Reference no: EM13254235

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