{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

LAB_9_Exercises - inverting amplifier The instrumentational...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
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-
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

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)....
View Full Document

{[ snackBarMessage ]}