This experiment introduces the three basic electronic instruments you will use in the course: the
, the function generator
, and the digital multimeter
Spend enough time in the lab
this week to become familiar with the instruments.
There are no pre-lab homework problems for
this first lab, and you do not have to write a report.
In place of the report, there are homework
problems on dc and ac circuit theory at the end of this chapter.
Any time you develop a new circuit, repair an electronic instrument, or measure the performance
of an electronic component or system, you will need to use one or more items of test equipment.
Almost every task requires an oscilloscope
, the basic instrument for visualizing the time
dependence of electronic signals.
A signal or function generator
is used to produce periodic
signals of the frequency, amplitude, and waveform needed for input to the device under test.
measures voltages, currents, resistance, and it can test silicon diodes and
Everything you do in an electronics laboratory depends upon your familiarity with
these instruments. The instructions for this experiment are designed help you start seeing
patterns on the oscilloscope screen as soon as possible, and to familiarize you with the basic
controls of each instrument.
They do not cover all of the capabilities of the instruments.
greater detail, consult the manufacturer's manuals kept on the book shelf in the lab.
Read Chapter 1, Sections 1.01-1.12 of Horowitz and Hill for a review of basic circuit theory and
some other important introductory topics:
voltage dividers, resistors, voltage and current
sources, the Thévenin equivalent circuit, types of signals, decibels, and capacitors.
Also read the
first three appendices:
The Oscilloscope, Math Review, and The 5% Resistor Color Code.
ALSO: Read the AGILENT 33120A FUNCTION GENERATOR MANUAL pp. 19-24 and the
tutorial on pp. 33-40. This document is at the course web site.
Answer the questions on pages 1.9 & 1.10 of this lab writeup (at the end). Turn these in to your
instructor at the start of your second lab period. Recall that the Mathcad that you used in
PHYS1140 can do complex numbers. The only “trick” is that to get (1+i) you must type (1+1i)
because i by itself is not
-1. Do not put an * or a
between 1 and i. You can use the PHYS1140
computers for this course but you must still show your work.