INDUSTRIAL INSTRUMENTATION [ ] ACTIVE LEARNING ASSIGNMENT TOPIC : DIGITAL DATA ACQUISITION SYSTEMS & CONTROL UNIVERSITY : GUJARAT TECHNOLOGICAL UNIVERSITY COLLEGE : VADODARA INSTITUTE OF ENGINEERING DEPARTMENT : ELECTRICAL ENGINEERING [E.E.– I] SEMESTER : VII COMPILED BY : [ JESTY JOSE] [ JOBIN ABRAHAM ] GUIDED BY : ASST. PROF. PUSHPA BHATIYA [ELECTRICAL DEPARTMENT] [ELECTRICAL DEPARTMENT] ACTIVE LEARNING ASSIGNMENT 1

 Outline  Introduction Introduction  The use of the following in DAQ The use of the following in DAQ The use of the following in DAQ  Instrumentation systems Instrumentation systems Instrumentation systems  Types of instrumentation systems Types of instrumentation systems Types of instrumentation systems  Analog DAQ system Analog DAQ system Analog DAQ system  Digital DAQ system Digital DAQ system Digital DAQ system  References References ACTIVE LEARNING ASSIGNMENT 2

 Basic block diagram of DAQ ACTIVE LEARNING ASSIGNMENT 3

 The use of the following in DAQ 1. Signal conditioners 2. Scanners 3. Signal converters 4. Recorders 5. Display device 6. A/D & D/A circuits ACTIVE LEARNING ASSIGNMENT 4

 Instrumentation systems ACTIVE LEARNING ASSIGNMENT 5  An instrumentation system is an aggregation or assembly of the device united by some form of regular interaction of an interdependence. It is a group of diverse units or devices so combined by nature or by an art to form an integral whole and to function, operate or move in unison and often in obedience to some form of control.  Data acquisition systems via analog signals are used in communications, electronics, and medical applications. Where in a digitized form it is widely used because complex circuits are low cost, accurate and simple to implement.  Data acquisition systems are used to measure and record analog signals in two ways: 1. Signals which originate from direct measurement of electric quantities. These signals may be ac or dc voltages, frequency, or resistance, etc. 2. Signals which originate from use of transducers.

 Types of instrumentation systems 1. Analog systems : these systems deal with information in analog form. An analog signal may be defined as continuous function, such as a plot of voltage vs. time or displacement vs. force. 2. Digital systems : a digital quantity may consists of a number of discrete or discontinuous pulses whose time relationship contains information about the magnitude and the nature of the quantity under measurement. ACTIVE LEARNING ASSIGNMENT 6

 Analog DAQ system 1. Transducer 2. Signal conditioner 3. Multiplexer 4. Calibrating device 5. Integrating device 6. Visual display unit 7. Analog recorders 8. Analog computers 9. High speed cameras and TV equipment ACTIVE LEARNING ASSIGNMENT 7

 Digital DAQ system 1. Transducers 2. Amplifiers 3. Filters 4. Analog multiplexers 5. Non-linear analog functions 6. Sample-hold system and A/D converter 7. Programmer sequence ACTIVE LEARNING ASSIGNMENT 8

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 Books referred 1. ERNEST O. DOEBELIN “MEASUREMENT SYSTEMS - Application And Design”, McGRAW-HILL PUBLISHING COMPANY, Fourth Edition, 1990 Reprint, ISBN : S K SINGH “Industrial Instrumentation and Control”, Tata McGraw Hill Education Private Limited, Third Edition, Tenth Reprint 2012, ISBN : Er. R.K. Jain “Mechanical and Industrial Measurements – Process Instrumentation and Control”, Khanna Publishers, Eleventh Edition, Ninth Reprint 2013, ISBN : A.K. Sawhney “A Course in Electrical and Electronic Measurements and Instrumentation”, DHANPAT RAI & Co. Pvt. Ltd., Nineteenth Revised Edition 2013, ISBN : ACTIVE LEARNING ASSIGNMENT 10

 Websites referred 1. /1/sn/n17:daq,n21:11/fmid/2998/ /1/sn/n17:daq,n21:11/fmid/2998/ /1/sn/n17:daq,n21:11/fmid/2998/ ACTIVE LEARNING ASSIGNMENT 11

12 ANY QUESTIONS? SUGGESTIONS ARE WELCOMED!