Monday, June 28, 2010

class 1

Introduction

you and me

Introduction to the Subject

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:

  1. W. D. Cooper and A.D. Helfrick, “Electronic Instrumentation and Measurement Techniques”, 3rd Edition, PHI, 1901.

  2. A.K. Sawhney, “A Course in Electrical and Electronic Measurements and Instruments”, Dhanpat Rai and Sons, 1991.


Reference:

  1. B.M. Oliver and J.M. Cage, Electronic Measurements and Instruments McGraw Hill, 1977.