JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Principles of Transduction and Measurement: Sensor Classification, Medically significant measurands- strain, force, pressure, acceleration, flow, volume, temperature and biopotentials. Functional specifications of medical sensors; static and dynamic characteristics of measurement systems. Primary sensors.

UNIT - II

Resistive Sensors: Potentiometers, Strain gages, RTDs, Thermistors, LDR. Signal conditioning. Wheatstone bridge, balance and deflection measurements. Instrumentation amplifier. Interference types and reduction. Shield grounding. Isolation amplifiers.

UNIT - III

Reaction Variation and Electromagnetic Sensors: Capacitive sensors, inductive sensors, LVDT, electromagnetic sensors. Signal conditioning, AC bridges, AC amplifiers, electrostatic shields, carrier amplifiers, phase-sensitive detectors.

UNIT - IV

Self-Generating Sensors: Thermoelectric sensors, thermocouples, piezoelectric sensors, photovoltaic sensors. Signal conditioning. Chopper and low-drift amplifiers, Noise in op-amps. Digital sensors. Telemetry and data acquisition.

UNIT - V

Bio Micro Electro Mechanical Systems (BioMEMS): Principles, design, fabrication and application of micro- and nano-devices to instrument and control biological molecules, living cells, and small organisms. Development of micro fabricated systems, lab-on-a-chip, and micro- and nano-biosensors.

TEXT BOOKS:

• 1. Ramon Pallas-Areny and John G. Webster, “Sensors and signal conditioning”, John Wiley and Sons, 1991. nd
• 2. DVS Murthy, “Transducers for Instrumentation Systems”, 2 Edition, Prentice Hall of India Ltd, 2004

REFERENCE BOOKS:

• 1. John G. Webster, “Medical Instrumentation-Application, and Design”, John Wiley and Sons Inc., 3rd Edition. 2003.
• 2. Rangan C.S., Sarma G.R., and Mani V.S.V., “Instrumentation devices and system”, Tata McGraw Hill Publishing Company limited, New Delhi, 2006.
• 3. A.P.F. Turner, I. Karube & G.S. Wilson, “Biosensors: Fundamentals & Applications”, Oxford University Press, Oxford, 1987. rd
• 4. L.A. Geddes, L.E. Baker, ”Principles of Applied Biomedical Instrumentation”, 3 Edition, Wiley, 2008