INTEGRATOR AND DIFFERENTIATOR ICA LAB manual - Code

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Wednesday, October 12, 2011

INTEGRATOR AND DIFFERENTIATOR ICA LAB manual



INTEGRATOR AND DIFFERENTIATOR

Aim:   To observe the output wave forms of differentiator and integrator for different time periods of inputs signal.

Apparatus:

1.      Differentiator & Integrator trainer kit
2.       Function Generator
3.      Dual slope oscilloscope
4.      Patch chords
5.      CRO probes


The Differentiator:
            The differentiator circuit performs the mathematical operation of differentiation.  That is the output waveform is the derivative of the input waveform.

Procedure:

1.      Connect the differentiator shown in figure and switch on the mains.
2.      Connect the function generators to the input terminals, apply square wave at the input terminals. 
3.      Measure the output voltage of regulated power supply circuit +5 volts and -5volts.
4.      Observe output of the square wave oscillator using CRO the output voltage will be approximately 4.5vpp and frequency is 100 Hz to 20 KHz.
5.      Select required frequency using potentiometer and connect it to the input of the differentiator.
6.      Choose capacitor value such that RC time constant is smaller than the input signal (RC<<T).
7.      Connect the capacitor and observe the output signal suing CRO.
8.      Thus the output signal will be the derivative of the input signal.
9.      Similarly  change the capacitor C  value for different time constants
                                      RC>>T
                                      RC=T
RC<<T








Circuit Diagram:

Differentiator:









Expected waveforms:



















The Integrator:

 A circuit in which the output voltage waveform is the integration of the input is called integrator

Procedure:
1.      Connect the integrator shown in figure and switch on the mains.
2.      Connect the function generators to the input terminals, apply square wave at the input terminals. 
3.      Measure the output voltage of regulated power supply circuit +5 volts and -5volts.
4.      Observe output of the square wave oscillator using CRO the output voltage will be approximately 4.5vpp and frequency is 100 Hz to 20 KHz.
5.      Select required frequency using potentiometer and connect it to the input of the differentiator.
6.      Choose capacitor value such that RC time constant is smaller than the input signal (RC<<T).
7.      Connect the capacitor and observe the output signal suing CRO.
8.      Thus the output signal will be the derivative of the input signal.
9.      Similarly  change the capacitor C  value for different time constants
                                      RC>>T
                                      RC=T
RC<<T






Circuit Diagram:

Integrator:









Expected waveforms:


























Result:


.

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