성균괿�댿� 진동및동적시스템설계실습 Op-Amp and Strain Gauge

1. Objective of experiment
-To know the function and basic circuits of Op-Amp
-To know the gain of Op-Amp
-To know the application of strain gauge in Wheatstone‘s Bridge for force measurement
-To know the application of Op-Amp for strain gauge measurement
-To understand the basic principle of measuring force
-To know the basic theory related to experiment such as Wheatstone‘s Bridge and strain

2. Experimental Equipment
Strain gauge, cantilever beam, LM741(Op-Amp), bread board, variable resistor, weight, C-clamp, spring balancer

3. Theory
3.1 Operational Amplifier (Op-amp)
As well as resistors and capacitors, Operational Amplifiers, or Op-amps as they are more commonly called, are one of the basic building blocks of Analogue Electronic Circuits. Operational amplifiers are linear devices that have all the properties required for nearly ideal DC amplification and are therefore used extensively in signal conditioning, filtering or to perform mathematical operations such as add, subtract, integration and differentiation.