## March 19, 2010

### ELECTRICAL AND ELECTRONICS ENGINEERING SEMESTER VI LAB MANUAL ANNA UNIVERSITY CHENNAI

ANNA UNIVERSITY CHENNAI: CHENNAI – 600 025 B.E DEGREE PROGRAMME (3 - 8 SEMESTERS)
ELECTRICAL AND ELECTRONICS ENGINEERING (Offered in Colleges affiliated to Anna University)
CURRICULUM AND SYLLABUS – REGULATIONS – 2004
SEMESTER VI LAB MANUAL

 PRACTICAL 1. EI 1362 Measurements & Instrumentation Laboratory 0 0 3 100 2. EC 1363 Microprocessor & Micro controller Laboratory 0 0 3 100 3. GE 1302 Technical Seminar ** 0 0 3 0

EI 1362 MEASUREMENTS AND INSTRUMENTATION LABORATORY 0 0 3 100
AIM
The aim of this lab is to fortify the students with an adequate work experience in the measurement of different quantities and also the expertise in handling the instruments involved.

OBJECTIVE
To train the students in the measurement of displacement, resistance, inductance, torque and angle etc., and to give exposure to AC, DC bridges and transient measurement.
1. Study of displacement and pressure transducers
2. AC bridges.
3. DC bridges.
4. Instrumentation amplifiers.
5. A/D and D/A converters.
6. Study of transients.
7. Calibration of single-phase energy meter.
8. Calibration of current transformer.
9. Measurement of three phase power and power factor.
10. Measurement of iron loss.
P = 45 Total = 45

Detailed Syllabus

1(a) Study of Displacement Transducer - LVDT
Aim
To study the operation of LVDT
Objectives
1. To study the basic principle of LVDT.
2. Study of signal conditioning circuit.
3. Study of LVDT as transducer.

Exercise
1. Draw the characteristic curve for a given LVDT.
2. Find the residual voltage.
3. Fluid the non-electrical quantity displacement interms of voltage.

Equipment
1. LVDT kit – 1 No
2. Multimeter – 1 No

1(b) Study of Pressure Transducer
Aim
To study the operation of bourdon tube
Objectives
1. To study the basic principle of Bourdon tube.
2. Study of Bourdon tube as transducer.

Exercise
1. Draw the characteristic curve for a given Bourdon tube i.e. pressure vs. o/p (V or I).
2. Measure the non-electrical quantity pressure interms of voltage or current.
Equipment
1. Bourdon pressure transducer kit – 1 No
2. Foot pump – 1 No
3. Voltmeter – 1 No
4. Multimeter – 1 No

2. AC BRIDGES
a) Maxwell’s Inductance – Capacitance Bridge
Aim
To find the unknown inductance and Q factor of a given coil.

Objective
1. To find the unknown inductance of the given coil using bridge circuit.
2. To study that Maxwell inductance, capacitance bridge is suitable for the measurement of law Q coils.
Exercise
1. Design a bridge circuit for the given parameters.
2. Fluid Q factor of the coil.
3. Fluid unknown Inductance.

Equipment
1. Maxwell’s inductance Capacitance Bridge kit – 1 No
2. Multimeter – 1 No
3. Unknown Inductance – 1 No

b) Schering Bridge
Aim
To measure the unknown capacitance using Schering bridge.
Objective
1. To measure the unknown capacitance.
2. To study about dissipation factor.
Exercise
1. Design a bridge circuit for the given parameters.
2. Find the dissipation factor.
3. Fluid the unknown capacitance.
Equipment
1. Schering Bridge kit – 1 No
2. Multimeter – 1 No
3. Unknown capacitance – 1 No

3. DC Bridges
a) Wheat Stone Bridge
Aim
To measure the given medium resistance using Wheatstone Bridge.
Objective
1. To study the working of bridge under balanced and unbalanced condition.
2. To study the sensitivity of bridge.
Exercise
1. Design a bridge for the given parameters.
2. Find the unknown resistance.
3. Find the sensitivity of Bridge.
Equipment
1. Wheat stone Bridge kit – 1 No
2. Unknown resistance – 1 No
3. Multimeter – 1 No

b) Kelvin’s Double bridge
Aim
To measure the given low resistance using Kelvin’s double bridge method.
Objective
1. To study the working of bridge under balanced and unbalance condition.
2. To study the sensitivity of bridge.

Exercise
1. Design a bridge for the given parameters.
2. Find the unknown low resistance.
3. Find the sensitivity of bridge.
Equipment
1. Kelvin Double bridge kit – 1 No
2. Unknown resistance – 1 No
3. Multimeter – 1 No

4. Instrumentation Amplifier

Aim
To study the working of instrumentation amplifier.
Objective
1. To study the characteristic of operational amplifier.
2. To study the use of operational amplifier as instrumentation amplifier.
Exercise
1. Measure the output voltage for varying input voltage.
2. Calculate the output voltage theoretically.
3. Calculate the error.
Equipment
1. Operational Amplifier – 1 No
2. Resistors – 1 No
3. RPS – 1 No
4. Voltmeter – 1 No
5. Multimeter – 1 No

5(a) A/D Converter
Aim
To design and test a 4 bit A/D converter

1. Successive approximation type
2. Ramp type

Objective
1. To study the converstion of analog I/P voltage to digital o/p volage.
2. To study the operation and characteristic of operational amplifier
Exercise
2. Verify the practical output with theoretical output
Equipment
1. IC 741 – 1 No
2. DC trainer kit – 1 No
3. RPS – 1 No
4. Resistor – 1 No
5. CRO – 1 No

(b) D/A Converter
Aim
To design and test a 4 bit D/A converter

1. Weighted resistor technique
Objective
1. To study the conversion of binary voltage to analog o/p voltage
2. To study the operation and characteristic of operational amplifier
Exercise
1. Given 4 bit binary input is converted to analog output
2. Verify the practical o/p with theoretical o/p
Experiment
1. IC 741 – 1 No
2. DC Trainer kit – 1 No
3. RPS – 1 No
4. Resistor – 1 No
5. CRO – 1 No

6. Study of Transients
Aim
To study the transient response of the given system
Objective
1. To study the transient behaviour of the given system
2. To study the effects of transients
Exercise
1. Draw the response curve for the given system
2. Find the time when the error is minimum
Equipment
1. Resistance – 1 No
2. Capacitance – 1 No
3. RPS – 1 No
4. Voltmeter – 1 No
5. Multimeter – 1 No

7. Calibration of Single-Phase Energy Meter
Aim
To calibrate the given single phase energy meter at unity and other power factors
Objectives
1. To study the working of energy meter
2. Too accurately calibrate the meter at unity and other power factor
3. To study the % of errors for the given energy meters
Exercise
1. Measure the experimental energy consumed
2. Calculate the theoretical energy
3. Calculate the percentage of error
4. Draw the calibration curve
Equipment
1. Energy meter – 1 No
2. Wattmeter – 1 No
3. Stop watch – 1 No
4. M.I Ammeter – 1 No
5. M.I Voltmeter – 1 No

8. Calibration of Current Transformer
Aim
To study the working of current transformer
Objective
1. To study the current transformation concept
2. To study the efficiency of a given current transformer
3. To study the loss components in the circuit
Exercise
1. Draw the curve primary current Vs secondary current
2. Observe the o/p for lamp load
3. Calculate the efficiency
Equipment
1. Current Transformer – 1 No
2. Lamp Load – 1 No
3. Voltmeter – 1 No
4. Ammeter – 1 No

9. Measurement of 3 Phase Power And Power Factor
Aim
To conduct a suitable experiment on a 3-phase load connected in star or delta to measure the three phase power and power factor using 2 wattmeter method.
Objectives
1. To study the working of wattmeter
2. To accurately measure the 3 phase power
3. To accurately measure the powerfactor
4. To study the concept of star connected load and delta connected load
Exercise
1. Measure the real power, reactive power and power factor of 3 phase resistive inductive load.
2. Measure the real power, reactive power and power factor of 3 phase resistive capacitive load.
Equipment
1. 3 phase Auto transformer – 1 No
2. M.I Ammeter – 1 No
3. M.I Voltmeter – 1 No
4. Wattmeter – 1 No

10. Measurement of Iron Loss (Maxwell Bridge)
Aim
To determine the iron losses in magnetic material using bridge method
Objective
1. To study about hysterisis loss
2. To study about eddy current loss
Exercise
1. Measure the current
2. Calculate iron loss
3. Calculate AC permeability
4. Draw phasor diagram
Equipment
1. Maxwell bridge set up – 1 No
2. Ring specimen – 1 No
3. Ammeter – 1 No
4. Galvanometer – 1 No

EC 1363 MICROPROCESSOR AND MICRO CONTROLLER LABORATORY 0 0 3 100
AIM
To understand programming using instruction sets of processors.
8-bit Microprocessor
1. Simple arithmetic operations:
• Multi precision addition / subtraction / multiplication / division.
2. Programming with control instructions:
• Increment / Decrement.
• Ascending / Descending order.
• Maximum / Minimum of numbers.
• Rotate instructions.
• Hex / ASCII / BCD code conversions.
3. Interface Experiments:
• A/D Interfacing.
• D/A Interfacing.
• Traffic light controller.
4. Interface Experiments:
• Simple experiments using 8251, 8279, 8254.
5. Programming practice on assembler and simulator tools. 8-bit Micro controller
6. Demonstration of basic instructions with 8051 Micro controller execution, including:
• Conditional jumps, looping
• Calling subroutines.
• Stack parameter testing
7. Parallel port programming with 8051 using port 1 facility:
• Stepper motor and D / A converter.
8. Programming Exercise on
9. Programming practice using simulation tools and C - compiler
• Initialize timer
• Enable interrupts.
10. Study of micro controllers with flash memory.

P = 45 Total = 45
REFERENCE BOOKS
1. R.S. Gaonkar, ‘Microprocessor Architecture Programming and Applications’, Wiley Eastern Ltd., New Delhi, 1995.
2. Myke Predko, ‘Programming and Customizing the 8051 Microcontroller’, Tata McGraw Hill, 1999.

Detailed Syllabus
8-bit Microprocessor
1. Simple arithmetic operations
a. Multi precision addition / subtraction / multiplication / division.

Aim
To perform simple arithmetic operations using assembly language program.
Exercise

1. Write an assembly language program using 8085 instructions set to perform the following arithmetic operations
1. Addition of two 8 bit numbers
2. Subtraction of two 8 bit numbers
3. Multiplication of two 8 bit numbers
4. Division of two 8 bit numbers

2. Programming with control instructions
a. Increment / Decrement.
b. Ascending / Descending order.
c. Maximum / Minimum of numbers.
d. Rotate instructions.
e. Hex / ASCII / BCD code conversions.

Aim
To write an assembly language program using the control instructions
Exercise
1. Using the control instructions of 8085 microprocessor write assembly language programs to perform the following
1. Arrange the given array of data in ascending and descending order
2. Find the maximum and minimum number in a group of data given.

3. Conversion of the following
1. ASCII to HEX code
2. Conversion of HEX to ASCII code
3. Conversion of BCD to HEX
4. Conversion of HEX to BCD
3. Interface Experiments
a. A/D Interfacing.
b. D/A Interfacing.
c. Traffic light controller.

Aim
To write an assembly language program to convert Analog input to Digital output and Digital input to Analog output.

Exercise
1. Write an assembly language program (using 8085) to convert Analog input to Digital output
2. Write an assembly language programs to convert digital input into analog signal of following type.
1. Square wave
2. Triangular wave
3. Sawtooth wave

4. Interface Experiments:
a. Simple experiments using 8251, 8279, 8254.
5. Programming practice on assembler and simulator tools.

8-bit Micro controller
6. Demonstration of basic instructions with 8051 Micro controller execution, including:
a. Conditional jumps, looping
b. Calling subroutines.
c. Stack parameter testing

Aim
To demonstrate use of control logic instructors.
Exercise

1. To write programs which can include instruction sets for jump, loop, cell, return, stack.
2. To observe the change in status registers and various relevant registers.

7. Parallel port programming with 8051 using port 1 facility:
a. Stepper motor and D / A converter.
Aim
To demonstrate the access of parallel port.
Exercise
1. To develop command words on choice of port, addressing of port pins.
2. To vary timing cycle of speed of motor, direction of motor.
3. To demonstrate generation of sine wave saw tooth, triangular wave of various frequency, amplitude.

8. Programming Exercise on
Aim
To write the program to check the content of memory locations using READ / WRITE instructions using different addressing modes.
Exercise
To READ / WRITE the content of RAM registers, bits and the RAM from
location 1 to N and check the display with say LEDs.

9. Programming practice using simulation tools and C – compiler
a. Initialize timer
b. Enable interrupts.
Aim
To use the facility of popular Micro controller programming tools like KEIL or RIDE software.
Exercise
1. To study the initializing of timer interrupt with context saving like increasing or decreasing the counter count.
2. To demonstrate use of instruction like cjne, djnz, jb etc.

10. Study of micro controllers with flash memory
Aim
Exercise
1. To write the program to generate sine wave, square wave etc.
2. To vary the frequency, amplitude of the signal.

## Government jobs in india 