This Presentation focusses on the Relevance of Instrumentation & Control Systems for Mechanical Engineering Discipline and the course objectives and outcomes

1. 1
Department of Mechanical Engineering, Bonam Venkata Chalamayya Engineering
College (Autonomous)
Odalarevu, EG Dist , A.P.
INSTRUMENTATION & CONTROL SYSTEMS
-Prof. B. Srinivas

2. 5/5/2021 NAAC-Chemical Engineering 2
What is Instrumentation Engineering ??

Dept. of ME, Bonam Venkata Chalamayya Engineering College (Autonomous)
Odalarevu, EG dist , AP
Definition
It is the science of measurement and control
of process variables within a production or
manufacturing area
Example of process variables??

3. What does it deal with ??
• Measurement
 Control &
 Automation of processes
5/5/2021 NAAC-Chemical Engineering 3
Dept. of ME, Bonam Venkata Chalamayya Engineering College (Autonomous)
Odalarevu, EG dist , AP

4. Why do we need ??
• Accelerated use of Instruments
 High rate of technological obsolescence
 Never-ending human comforts
5/5/2021 NAAC-Chemical Engineering 4
Dept. of ME, Bonam Venkata Chalamayya Engineering College (Autonomous)
Odalarevu, EG dist , AP

5. What is the relevance with
Mechanical Engineering??
 Instrumentation Engineering involves the
planning, development and maintenance
of instruments that are used in the automated
systems
 Whereas Mechanical Engineering involves
the production and usage of heat
or mechanical power for manufacturing tools
and machines.
5/5/2021 NAAC-Chemical Engineering 5
Dept. of ME, Bonam Venkata Chalamayya Engineering College (Autonomous)
Odalarevu, EG dist , AP

6. The Relevance
• Measurement is fundamental basis of all research, design
and development.
• It is necessary for measurement of different parameters,
for which it is theoretically designed, and compare
between theoretical values and actual values.
• It is a fundamental element of any control system.
• It is helpful in carrying out successful operation of any
system.
• For Ex. in a power plant, temperature, volume , pressure
of steam , coal input , also output voltage, current, phase
angel ,power etc. are required to be measured
5/5/2021 NAAC-Chemical Engineering 6
Dept. of ME, Bonam Venkata Chalamayya Engineering College (Autonomous)
Odalarevu, EG Dist , A.P.

7. Synopsis of Course Syllabus
UNIT-I
Part-A: Definition – Basic principles of measurement –
Methods and Modes of measurement
Part-B: Measurement of Displacement: Theory and
construction of various transducers to measure
displacement
Resistance, Electro-magnetic inductance, LVDT,
Capacitance, Piezo Electric, Ionization and Photo
electric transducers.
5/5/2021 NAAC-Chemical Engineering 7
Dept. of ME, Bonam Venkata Chalamayya Engineering College (Autonomous)
Odalarevu, EG Dist , A.P.

8. Synopsis of Course Syllabus
UNIT-II
Part-A: MEASUREMENT OF TEMPERATURE:
Classification – ranges – Expansion thermometers,
Electrical Resistance (RTD), Thermistor, Thermocouple,
Pyrometers
Part-B: MEASUREMENT OF PRESSURE: Units –
classification – Differential manometers, Bourdon- Tube,
Bellows, Diaphragm gauges. Measurement of low
pressure – Mcleod Gauge, Thermal conductivity gauges,
Ionization gauge, Dead Weight Piston gauge.
Resistance, Electro-magnetic inductance, LVDT,
Capacitance, Piezo Electric, Ionization and Photo
5/5/2021 NAAC-Chemical Engineering 8
Dept. of ME, Bonam Venkata Chalamayya Engineering College (Autonomous)
Odalarevu, EG Dist , A.P.

9. Synopsis of Course Syllabus
UNIT-III
Part-A: MEASUREMENT OF LEVEL: Direct methods- indirect
methods
Part-B: FLOW MEASUREMENT: Rotameter, Magnetic,
ultrasonic, turbine flow meters, hot – wire anemometer, laser
Doppler anemometer (LDA).
Part-C: MEASUREMENT OF SPEED: Mechanical
tachometers, electrical tachometers, contact less
tachometers.
Part-D: Measurement of Acceleration and Vibration:
Piezoelectric, Seismic sensing, Strain Gauge, Capacitance,
Variable Inductance, LVDT accelerometers, Reeding
Vibrometer, using Stroboscope.
5/5/2021 NAAC-Chemical Engineering 9
Dept. of ME, Bonam Venkata Chalamayya Engineering College (Autonomous)
Odalarevu, EG Dist , A.P.

10. Synopsis of Course Syllabus
UNIT-IV
STRESS STRAIN MEASUREMENTS : Various types of
stress and strain measurements – electrical strain gauge –
gauge factor – method of usage of resistance strain gauge
for bending compressive and tensile strains, strain gauge
rosettes.
5/5/2021 NAAC-Chemical Engineering 10
Dept. of ME, Bonam Venkata Chalamayya Engineering College (Autonomous)
Odalarevu, EG Dist , A.P.

11. Synopsis of Course Syllabus
UNIT-V
Part-A: MEASUREMENT OF HUMIDITY – Terms
related to Humidity, Sling Psychrometer, Absorption
Psychrometer, Dew Point Meter.
Part-B: MEASUREMENT OF FORCE – Elastic Force
Meter(Proving Ring), Load Cells – Strain Gauge,
Hydraulic, Pneumatic.
Part-C: MEASUREMENT OF TORQUE – Mechanical,
Optical, Electrical & Strain gauge torsion meters.
Part-D: MEASUREMENT OF POWER- Dynamometers-
Classification- Hydraulic, Eddy Current, Belt-
Transmission, DC Generator type.
5/5/2021 NAAC-Chemical Engineering 11
Dept. of ME, Bonam Venkata Chalamayya Engineering College (Autonomous)
Odalarevu, EG Dist , A.P.

12. Synopsis of Course Syllabus
UNIT-VI
ELEMENTS OF CONTROL SYSTEMS: Introduction,
importance – classification – open and closed systems,
Servomechanism, examples with block diagrams–
temperature, speed & position control systems
5/5/2021 NAAC-Chemical Engineering 12
Dept. of ME, Bonam Venkata Chalamayya Engineering College (Autonomous)
Odalarevu, EG Dist , A.P.

13. Course Objectives
• COB1.To Study the characteristics of instruments and develop
knowledge of various displacement transducers.
• COB2. To study different principles applied in measurement of
temperature and pressure
• COB3. To develop the knowledge on different transducers used
to measure Level, Flow, Speed & Acceleration/Vibration.
• COB4. To derive equations related to measurement of strain
and to know usage of strain gauges for different measurements.
• COB5. To develop the knowledge and selection of instrument
based on the requirement for measuring Humidity, Force,
Torque and Power.
• COB6. To impart knowledge on basic elements of control
systems.
5/5/2021 NAAC-Chemical Engineering 13
Dept. of ME, Bonam Venkata Chalamayya Engineering College (Autonomous)
Odalarevu, EG Dist , A.P.

14. Course Outcomes
After successful completion of the course, the students should be able
to
• CO1. Identify errors and un-certainty in measurements using static
and dynamic analysis and select transducers for the measurement of
displacement
• CO2. Select appropriate instruments for measurement of temperature
and pressure.
• CO3. Identify Transducers /Sensors for measurement of vibration,
flow rate, speed and liquid levels
• CO4. Relate the relation between strain and resistance and use Strain
Gauges for different measurements.
• CO5. Select appropriate devices for measuring Humidity, Force,
Torque and Power.
• CO6. Apply the control systems for various mechanical systems.
5/5/2021 NAAC-Chemical Engineering 14
Dept. of ME, Bonam Venkata Chalamayya Engineering College (Autonomous)
Odalarevu, EG Dist , A.P.