1. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji Figure 4.1 Computerized data-acquisition system.

2. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji Figure 4.2 Data-acquisition board with eight analog input channels and two analog output channels also showing an analog signal connection box. Manufactured by National Instruments.

3. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji Figure 4.3 Typical computer system.

4. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji

5. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji Figure 4.4 Four-channel analog multiplexer (channel 1 connected).

6. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji Figure 4.5 Ramp A/D converter process.

7. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji Figure 4.6 Single-slope integrating A/D converter circuit. (Based on Turner, 1988.)

8. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji

9. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji Figure 4.7 Formulas to estimate A/D converter digital output.

10. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji Figure 4.8 Graphical description of the method of successive approximations for a 4-bit A/D converter. Based on Franco (2002).

11. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji Figure 4.9 Block diagram of a successive-approximations A/D converter. Copyright 1990 Instrument Society of America. From Computer-based Data Acquisition Systems by J.Taylor.

12. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji Figure 4.10 Block diagram of a parallel A/D converter. Based on S. Franco, Design with Operational Amplifiers and Analog Integrated Circuits, McGraw-Hill, 1988. Used with permission of McGraw-Hill Inc.

13. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji Figure 4.11 Block diagram of a dual-slope integrating A/D converter: (a) block diagram; (b) integration process. Copyright 1990 Instrument Society of America. From Computer-based Data Acquisition Systems by J.Taylor.

14. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji Figure 4.12 Digital-to-analog converter. (Based on Turner, 1988.)

15. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji Figure 4.13 Simultaneous sample and hold subsystem.

16. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji

17. Copyright ©2011 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. Introduction to Engineering Experimentation, Third Edition Anthony J. Wheeler Ahmad R. Ganji Figure 4.14 Block diagram of a digital storage oscilloscope.