JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives:

• 1. Understand the basic knowledge of the physical parameters like Pressure, Temperature, flow, level, density and viscosity employed in different Industries.
• 2. Grasp sound knowledge about various techniques used for the measurement of industrial parameters.
• 3. Understand the construction and working of measuring instruments.
• 4. Analyze need and necessity of measuring instruments.

Course Outcomes

After completion of the course the student is able to:

• 1. Acquire adequate knowledge about process transducers.
• 2. Acquire adequate knowledge about the temperature standards, thermocouples and pyrometry techniques.
• 3. Use and calibrate flow meters, mass flow meters etc.,
• 4. Do the level measurements adopted in industry environment. Course PO1 PO2 PO3 PO4 PO5 PO6 PO7 PO8 PO9 PO10 PO11 PO12 CO1 3 3 - - - - - - - - - 1 CO2 3 3 2 - - - - - - - - 1 CO3 3 3 2 2 - - - - - - - 1 CO4 3 3 2 2 - - - - - - - 1

UNIT - I

Metrology: Measurement of length - Gauge blocks – Plainness – Area using Simpson‘s rule, Planimeter – Diameter – Roughness – Angle using Bevel protractor, sinebars and Clinometer – Mechanical, Electrical, Optical and Pneumatic Comparators. Optical Methods for length and distance measurements using Optical flats and Michelson Interferometer. Velocity and Acceleration Measurement Relative velocity – Translational and Rotational velocity measurements – Revolution counters and Timers - Magnetic and Photoelectric pulse counting stroboscopic methods. Accelerometers-different types, Gyroscopes-applications.

UNIT - II

Force Measurement: Force measurement – Different methods –Gyroscopic Force Measurement – Vibrating wire Force transducer. Pressure Measurement: Basics of Pressure measurement –Manometer types – Force-Balance and Vibrating Cylinder Transducers – High- and Low-Pressure measurement – McLeod Gauge, Knudsen Gauge, Momentum Transfer Gauge, Thermal Conductivity Gauge, Ionization Gauge, Dual Gauge Techniques, Deadweight Gauges, Hydrostatic Pressure Measurement

UNIT - III

Flow Measurement and Level Measurement: Flow Meters- Head type, Area type (Rota meter), electromagnetic type, Positive displacement type, mass flow meter, ultrasonic type, vertex shedding type, Hotwire anemometer type, Laser Doppler Velocity-meter. Basic Level measurements – Direct, Indirect, Pressure, Buoyancy, Weight, Capacitive Probe methods

UNIT - IV

Density, Viscosity and other Measurements Density measurements – Strain Gauge load cell method – Buoyancy method - Air pressure balance

method – Gamma ray method – Vibrating probe method. Units of Viscosity, specific gravity scales used in Petroleum Industries, Different Methods of measuring consistency and Viscosity –Two float viscorator –Industrial consistency meter. Sound-Level Meters, Microphones, Humidity Measurement

UNIT - V

Calibration and Interfacing Calibration using Master Sensors, Interfacing of Force, Pressure, Velocity, Acceleration, Flow, Density and Viscosity Sensors, Variable Frequency Drive

TEXT BOOKS:

• 1. Doeblin E.O. -Measurement Systems – Applications and Design, 4th Ed., McGraw Hill international, 1990
• 2. Patranabis D - Principles of Industrial Instrumentation, End edition, TMH, 1997

REFERENCE BOOKS:

• 1. Considine D.M.- Process Instruments and Control Handbook, 4th Ed., McGraw Hill International, 1993.
• 2. Jain R.K.- Mechanical and Industrial Measurements, Khanna Publishers, 1986.
• 3. Jones E.B.- Instrument Technology, vol. I, Newens, 1981.