JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Definition – Basic principles of measurement – Measurement systems, generalized configuration and functional descriptions of measuring instruments – examples. Dynamic performance characteristics – sources of error, Classification, and elimination of error. Measurement of Displacement: Theory and construction of various transducers to measure displacement – Piezo electric, Inductive, capacitance, resistance, ionization, and Photo electric transducers, Calibration procedures. Measurement of Temperature: Classification – Ranges – Various Principles of measurement – Expansion, Electrical Resistance – Thermistor – Thermocouple – Pyrometers – Temperature Indicators.

UNIT - II

Measurement Of Pressure: Units – classification – different principles used. Manometers, Piston, Bourdon pressure gauges, Bellows – Diaphragm gauges. Low pressure measurement – Thermal conductivity gauges – ionization pressure gauges, Mcleod pressure gauge. Measurement Of Level: Direct method – Indirect methods – capacitative, ultrasonic, magnetic, cryogenic fuel level indicators – Bubler level indicators. Flow Measurement: Rotameter, magnetic, Ultrasonic, Turbine flow meter, Hot – wire anemometer, Laser Doppler Anemometer (LDA).

UNIT - III

Measurement Of Speed: Mechanical Tachometers – Electrical tachometers – Stroboscope, Non- contact type of tachometer Measurement of Acceleration and Vibration: Different s imp le instruments-Principles of S e ism ic instruments – Vibrometers and accelerometers. 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 – usage for measuring torque, Strain gauge Rosettes.

UNIT - IV

Measurement Of Humidity – Moisture content of gases, sling psychrometer, Absorption psychrometer, Dew point meter Measurement of Force, Torque and Power- Elastic force meters, load cells, Torsion meters, Dynamometers.

UNIT - V

Elements Of Control Systems: Introduction, Importance – Classification – Open and closed systems Servomechanisms – Examples with block diagrams – Temperature, speed and position control systems.

R16 B.TECH MECHATRONICS.

TEXT BOOKS:

• 1. Measurement Systems: Applications &design by Ernest O. Doebelin, TMH.
• 2. Measurement systems: Applications & design by D.S Kumar

REFERENCE BOOKS:

• 1. Instrumentation, measurement & analysis by B. C. Nakra & K. K. Choudhary, TMH
• 2. Experimental Methods for Engineers / Holman
• 3. Mechanical and Industrial Measurements / R.K. Jain/ Khanna Publishers.
• 4. Mechanical Measurements / Sirohi and Radhakrishna / New Age
• 5. Instrumentation & mechanical Measurements by A.K. Tayal , Galgotia Publications R16 B.TECH MECHATRONICS.