Homework 6

# Homework 6 - MEEN 260 Introduction to Engineering Experimentation Homework 6 Strain Gauges and the Wheatstone Bridge Circuit Assigned Thursday 26

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MEEN 260 Introduction to Engineering Experimentation Homework 6: Strain Gauges and the Wheatstone Bridge Circuit Assigned: Thursday, 26 Feb. 2009 Due: Thursday, 5 Mar. 2009, 5:00 pm Note: All Homework problems assume the Wheatstone Bridge configuration shown: Figure 1: Wheatstone Bridge Homework Problems: Problem 1) Consider a Wheatstone Bridge circuit where ( ) ( ) [ ] in R R R R R R out V V 4 3 4 2 1 2 + + = . Assume that R 1 = 150 , R 2 = 320 , R 3 = 75 , R 4 = 80 , and V in = 5V. If another resister is placed in parallel with R 1 , determine its value such that the bridge will be balanced. Problem 2) This is problem 12.20 of the textbook. For your convenience, the problem statement is repeated here: a.) Show how strain gages may be mounted on a simple cantilever beam, and placed in a Wheatstone Bridge circuit, to sense temperature change while being insensitive to variations in beam loading. b.)

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## This note was uploaded on 07/28/2010 for the course MEEN 260 taught by Professor Langari during the Fall '08 term at Texas A&M.

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Homework 6 - MEEN 260 Introduction to Engineering Experimentation Homework 6 Strain Gauges and the Wheatstone Bridge Circuit Assigned Thursday 26

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