Monday, June 28, 2010
UEI 5073 ANALOG AND DIGITAL INSTRUMENTS
UNIT – I
Electronic analog meters: DC and AC Voltmeters – true R.M.S Voltmeters – differential Voltmeters – ac Current Measurements Multimeters – Component measuring instruments – Q-meter – Vector Impedance Meter – Wave Analyzer – Harmonic distortion analyzer – spectrum analyzer.
UNIT – II
Digital Instruments: Digital methods of measuring frequency, Phase difference, time period. DVM Dual slope, Ramp type Digital Multimeters and Q-meters – Digital measurement of non electrical variables like displacement, speed and temperature. Digital storage Oscilloscope.
UNIT – III
Display devices and Recording Instruments: LED’s, LCD’s annunciators, numerics, alphanumerics, graphics – X-t and X-y recorders – UV recorders – Magnetic tape recorders – direct, F.M. digital. Interference and Screening Components impurities and their effect on signals – Electromagnetic Interference – Multiple Earth and Earth loops.
UNIT – IV
Oscillators: RC Phase shift oscillator – Wien Bridge oscillator – pulse and square wave Generators – Function Generators – Cathode Ray Oscilloscope – Vertical, Horizontal amplifiers – time base – Synchronization –free run auto – single sweep – Multitrace display – alternate chop sweep trigger sources – delayed sweep – delay lines – probes – high frequency considerations sampling oscilloscope.
UNIT – V
Introduction to Automated Measurement Systems: IEEE 488 bus – Intelligent Instruments – Microprocessor based – DVM – and Multimeters with self Diagnostic features – design of GPIB Systems. Network Protocols – OSI Model – BISYNC – HDLC – SDLC – LAN Topologies – Ethernet.
Text Books:
W. D. Cooper and A.D. Helfrick, “Electronic Instrumentation and Measurement Techniques”, 3rd Edition, PHI, 1901.
A.K. Sawhney, “A Course in Electrical and Electronic Measurements and Instruments”, Dhanpat Rai and Sons, 1991.
Reference:
B.M. Oliver and J.M. Cage, Electronic Measurements and Instruments McGraw Hill, 1977.