Operating Procedures; Basic Applications; Introduction; Index To Basica Pplication Procedures - Tektronix 2215A Operator's Instruction Manual

Section 4-2215A Operators
OPERATING PROCEDURES
BASIC APPLICATIONS
INTRODUCTION
After becoming familiar with the capabilities of the 221 SA
Oscilloscope an operator can then easily develop conve-
nient methods for making particular measurements. The in-
formation in this section is designed to enhance operator
understanding and to assist in developing efficient tech-
niques for making specific measurements. Recommended
methods for making basic measurements with your instru-
ment are described in the procedures contained in this
section.
When a procedure first calls for presetting instrument
controls and obtaining a baseline trace, refer to the "Oper-
ator's Adjustments" part in Section 3 and perform steps 1
through 4 under "Baseline Trace".
INDEX TO BASIC
APPLICATION PROCEDURES
VOLTAGE MEASUREMENTS ... . ............. 4-1
AC Peak-to-Peak Voltage . . . . . . . . . . . . . . . . . . 4-1
Instantaneous Voltage . . . . . . . . . . . . . . . . . . . . . 4-2
Algebraic Addition . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Common-Mode Rejection . . . . . . . . . . . . . . . . . . . 4-3
Amplitude Comparison . . . . . . . . . . . . . . . . . . . . . 4-4
NONDELAYED TIME MEASUREMENTS . . . . . . . . . 4-4
Time Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Rise Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Time Difference Between Pulses On Time
Related Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Phase Difference . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
TELEVISION DISPLAYS . . . . . . . . . . . . . . . . . . . . . . 4-8
TV Line Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
TV Field Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
DELAYED-SWEEP MAGNIFICATION . . . . . . . . . . . . 4-8
Magnified Sweep Runs After Delay . . . . . . . . . . . 4-9
Pulse Jitter Time Measurement . . . . . . . . . . . . . . 4-1 0
Triggered Magnified Sweep . . . . . . . . . . . . . . . . . 4-1 O
DELAYED-SWEEP TIME MEASUREMENTS . . . . . . 4-10
Time Difference On Single Waveform . . . . . . . . . . 4-10
Rise Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Time Difference Between Two Pulses On
Two Time-Related Signals . . . . . . . . . . . . . . . . . . 4-12
VOLTAGE MEASUREMENTS
AC Peak-to-Peak Voltage
To make a peak-to-peak voltage measurement, use the
following procedure:
NOTE
This procedure may also be used to make voltage
measurements between any two points on the
waveform.
1 . Preset instrument controls and obtain a baseline
trace.
2. Apply the ac signal to either vertical-channel input
connector and set the VERTICAL MODE switch to display
the channel used.
3. Set the appropriate VOLTS/DIV switch to display
about five divisions of the waveform, ensuring that the
VOLTS/DIV Variable control is in the CAL detent.
4. Adjust the A TRIGGER LEVEL control to obtain a sta-
ble display.
5. Set the A SEC/DIV switch to a position that displays
several cycles of the waveform.
6. Vertically position the display so that the negative
peak of the waveform coincides with one of the horizontal
graticule lines (see Figure 4-1, Point A).
4-1