BM2203 - Sensors and Measurements |
UNIT I SCIENCE OF MEASUREMENT |
Measurement System – Instrumentation – Classification and Characteristics of
Transducers – Static and Dynamic – Errors in Measurements – Calibration – Primary
and secondary standards. |
UNIT II DISPLACEMENT , PRESSURE, TEMPERATURE SENSORS |
Strain Gauge: Gauge factor, sensing elements, configuration, unbounded strain gage,
biomedical applications; strain gauge as displacement & pressure transducers: force
summing devices, capacitive transducer, inductive transducer, LVDT,
Passive types: RTD materials & range, relative resistance vs. temperature
characteristics, thermistor characteristics, biomedical applications of Temperature
sensors. Active type: Thermocouple – characteristics, |
UNIT IIIPHOTOELECTRIC AND PIEZO ELECTRIC SENSORS |
Phototube, Photo Multiplier Tube (PMT), photovoltaic, photoconductive cells, photo
diodes, phototransistor, comparison of photoelectric transducers, spectro-photometric
applications of photo electric transducers. Piezoelectric active transducer and biomedical
applications as pressure & Ultrasound transducer. |
UNIT IVSIGNAL CONDITIONING & SIGNAL ANALYSER |
AC and DC Bridges –wheat stone bridge, Kelvin, Maxwell, Hay, Schering -Pre-amplifier– impedance matching circuits – isolation amplifier. Spectrum analyzer. |
UNIT VDISPLAY AND RECORDING DEVICES |
Digital voltmeter – Multi meter – CRO – block diagram, CRT – vertical & horizontal
deflection system, DSO, LCD monitor, PMMC writing systems, servo recorders,
photographic recorder, magnetic tape recorder, X–Y recorder, thermal recorder. |
Text Book |
1. Principles of Applied Biomedical Instrumentation L.A Geddas and L.E.Baker –
John Wiley and sons.
2. Albert D.Helfrick and William D. Cooper. Modern Electronic Instrumentation and
Measurement Techniques”, Prentice Hall of India, 2007. |
References |
1. Ernest o Doebelin and dhanesh N manik, Measuremet systems, Application and
design ,5th edition ,McGraw-Hill, 2007.
2. Khandpur R.S, “Handbook of Biomedical Instrumentation”, Tata McGraw-Hill,
New Delhi, 2007.
3. Leslie Cromwell, “Biomedical Instrumentation and measurement”, Prentice hall
of India, New Delhi, 2007.
4. John G. Webster, “Medical Instrumentation Application and Design”, John Wiley
and sons, New York, 2004 |
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