LAB_9_Exercises - inverting amplifier. The...

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Exercise 1: constructing an infra red circuit and reading its output voltage Construct a VI that reads the output voltage of on infra-red emitter-receiver circuit (on ACH0). Try inserting one hand between the emitter and receiver and observe what happens to the output voltage. R1=150 ohms, R2=1Mohms. Exercise 2: Instrumentational Amplifier When we usually amplify an electrical signal, we amplify the noise that is inevitably found in the weak signal. This is a non-desirable issue. One of the solutions to this is to implement an instrumentational amplifier instead of a simple inverting or non-
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Unformatted text preview: inverting amplifier. The instrumentational amplifier is a good device for removing common mode noise. Get the LM324 quad op-amp IC (with its data sheet), 6 resistors (100k) and a thermocouple. Build the circuit shown below. Connect the thermocouple terminals to V 1 and V 2 . Choose R2 to amplify the input signal about 1,000 times (900 is ok). Read the output voltage from V o using a multimeter. This is the noniverting Op-amp circuit (just for your knowledge)....
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This note was uploaded on 02/07/2011 for the course MECH 430 taught by Professor Najibmetni during the Summer '08 term at American University of Beirut.

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LAB_9_Exercises - inverting amplifier. The...

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