To understand the operation and use of electronic instruments, it is necessary to have a solid background in the electrical theory associated with electronic measurements. Although it is assumed that the reader understands basic electrical principles (voltage, current, Ohm’s Law, etc.), these principles will be reviewed here with special emphasis on how the theory relates to electronic measurement. With this approach, the theory is used to lay the groundwork for discussing the use and operation of electronic instruments. Most of the fundamental concepts apply to multiple types of measurements and instruments.

Reproduced from the book Electronic Test Instruments: Analog and Digital Measurements, 2nd Edition. Copyright © 2003 Pearson Education, Prentice Hall PTR. All rights reserved. Reproduced by permission of Prentice Hall PTR. Written permission from Prentice Hall PTR is required for all other uses.