DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB

http://www.naaptol.com/boots/bacca-bucci-casual-boots-black/p/12270125.htmlEI2406 INSTRUMENTATION SYSTEM DESIGN LABList of Experiments

1. Design and Implementation of instrumentation amplifier.

2. Design and implementation of active filter.

3. Design and implementation of V/I and I/V converters.

4. Design and implementation of cold junction compensation circuit for thermocouple.

5. Design and implementation of signal conditioning circuits for RTD.6. Design of orifice plate 7. Design of rotameter.

8. Design of control valve (Sizing and flow lift characteristics).

9. Design of PID controller(Using operational amplifier and microprocessor)10. Piping and Instrumentation Diagram Case study.

11. Preparation of documentation of instrumentation project(Process flow sheet, instrumentation index sheet and instrument specifications sheet)Design and Implementation of instrumentation amplifier.

Pin Diagram:

Circuit Diagram:

1. INSTRUMENTATION AMPLIFIERAim:

To design an instrumentation amplifier.

Apparatus required:

SL.NOITEMSPECIFICATIONQUANTITY

1

2

3

4

5

6IC

ResistorsRegulated power supplyVoltmeter

Bread board

DRB741

4.7K, 1K

(0 15)V

DC voltmeter

__3

2, 4

2

1

1

Procedure:

1. Find R to get required output voltage.

2. Give the connections as per circuit diagram.

3. Vary the input voltage.

4. Observe the output voltage and compare them with the theoretical values.

Formula:

V0 = - (R2/R1) (1+2R/Rg) Vd

TABULATION FOR INSTRUMENTATION AMPLIFIERSL.NORgV1V2Vd= (V1-V2)V0 (Theoretical)V0 (practical)

1

2

3

4

5

Theory:

In industrial and consumer applications, the physical quantities such as temperature, Pressure, Humidity, Light intensity, Water flow etc are measured with the help of transducers. The output of transducer has to be amplified so that it can drive the indicator or display system. An instrumentation amplifier performs this function. The important features of an instrumentation amplifier are 1) high accuracy 2) high CMRR 3) high gain stability with low temperature coefficient 4) low DC offset 5) low impedance. Result:

Thus the instrumentation amplifier was designed and for various changes in resistance of Rg the output was observed.

Design and implementation of active filter.1. Low Pass Filter:

2.High Pass filter

Aim: To study and design an active filter using operational amplifier circuit.Apparatus Required:

1. Resistor 10K, 1.59K, 5.86K

2. Capacitor 0.1F

3. RPS

4. IC 741

5. Function Generator.Procedure:

1. Connect the circuit diagram for Low pass and High pass filter as shown.

2. Now input signal (sine wave) at particular frequency is applied.

3. The different frequencies is applied to the circuit is noted and corresponding output voltage is noted.

4. Graph is drawn for frequency Vs Output voltage.

Theory:

Low pass Filter:

V0 = Magnitude of Response,

Recalling that magnitude of a complex number is square root of sum of squares of real and imaginary parts. There are also phase shifts associated with the transfer function Vo/Vi throughout. This is obviously a low pass i.e low frequency signals are passed and high frequencies are blocked. If w1/RC then gain goes to zero.

Vo/Vi= |Ho| wo / (w2+wo2)1/2At low frequencies w