BM3301 Sensors and Measurements Syllabus:
BM3301 Sensors and Measurements Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
To understand the purpose of measurement, the methods of measurements, errors associated with measurements.
To know the principle of transduction, classifications and the characteristics of different transducers
To learn the different bridges for measurement.
To know the different display and recording devices.
To understand various type of biosensors.
UNIT I FUNDAMENTALS OF MEASUREMENTS
Measurement System – Instrumentation – Classification and Characteristics of Transducers – Static and Dynamic – Errors in Measurements and their statistical analysis- methods of error analysis,- uncertainty analysis-expression of uncertainty: accuracy and precision index, propagation of errors– Calibration – Primary and secondary standards.
UNIT II DISPLACEMENT, PRESSURE, TEMPERATURE SENSORS
Strain Gauge: Gauge factor, sensing elements, configuration, and unbounded strain gage. Capacitive transducer – various arrangements, Inductive transducer, LVDT, Passive types: RTD materials & range, relative resistance vs. temperature characteristics, thermistor characteristics, Active type: Thermocouple – characteristics.
UNIT III PHOTOELECTRIC AND PIEZO ELECTRIC SENSORS
Phototube, scintillation counter, photo multiplier tube (PMT), photovoltaic, photo conductive cells, photo diodes, phototransistor, comparison of photoelectric transducers. Optical displacement sensors and optical encoders. Piezoelectric active transducer- Equivalent circuit and its characteristics.
UNIT IV SIGNAL CONDITIONING CIRCUITS AND METERS
Functions of signal conditioning circuits, Preamplifiers, Concepts of passive filters, Impedance matching circuits, AC and DC Bridges – wheat stone bridge, Kelvin, Maxwell, Hay, Schering, Qmeter, PMMC, MI and dynamometer type instruments – DC potentiometer- Digital voltmeter – Multi meter.
UNIT V RECORDING DEVICES AND ADVANCED SENSORS
CRO – block diagram, CRT – vertical & horizontal deflection system, DSO, LCD monitor, PMMC writing systems, servo recorders, photographic recorder, magnetic tape recorder, Inkjet recorder, thermal recorder. Biosensors: transduction mechanism in a biosensor and Classification – Electronic nose.
COURSE OUTCOMES:
On successful completion of this course, the student will be able to
CO1: Measure various electrical parameters with accuracy, precision, resolution.
CO2: Select appropriate passive or active transducers for measurement of physical phenomenon.
CO3: Select appropriate light sensors for measurement of physical phenomenon
CO4: Use AC and DC bridges for relevant parameter measurement.
CO5: Employ multimeter, CRO and different types of recorders for appropriate measurement.
TOTAL:45 PERIODS
TEXT BOOKS
1. A.K.Sawhney, “Electrical & Electronics Measurement and Instrumentation”,10th edition, Dhanpat Rai & Co, New Delhi, 19th Revised edition 2011, Reprint 2014.
2. John G. Webster, “Medical Instrumentation Application and Design”, 4th edition, Wiley India Pvt Ltd, New Delhi, 2015
3. Ernest O Doebelin and Dhanesh N Manik, “Measurement systems, Application and design”, 6th edition, McGraw-Hill, 2012
REFERENCES
1. Khandpur R.S, “Handbook of Biomedical Instrumentation”, 3rd edition,Tata McGraw-Hill, New Delhi, 2014.
2. Leslie Cromwell, “Biomedical Instrumentation and measurement”, 2nd edition, Prentice hall of India, New Delhi, 2015.
3. Albert D.Helfrick and William D. Cooper. Modern Electronic Instrumentation and Measurement Techniques”, Prentice Hall of India, 1st edition, 2016.