X-Y Operation; Measurement Applications; Amplitude Measurements - PeakTech 2035 Bedienungsanleitung

There is another method to measure the sum of two signs for this product. It is the method to select INV
switch to INV concurrently. When input sign is on the equal phase by selection of INV switch the
waveform of ADD will be difference in amplitude of the two signs. (EX: 4.2 Div - 1.2 Div = 3.0 Div.). When
input sign has phase difference of 180° two signs become sum of amplitude.
2.2.8

X-Y Operation

The internal timebase of the unit are not utilized in X-Y Operation; deflection in both the vertical and
horizontal directions is via external signals. Vertical channel 1 serves as the X-axis (horizontal) signal
processor, so horizontal and vertical axes have identical control facilities.
All of the V MODE, and trigger switches, as sell as thire associated controls and connectors, are
inoperative in the X-Y mode.
To set up the unit for X-Y operation, proceed as follows:
1. Turn the TIME/DIV switch (15) fully clockwise to its X-Y positions.
Caution: Reduce the trace intensity, lest the undelected spot damage the CRT phosphor.
2. Apply the vertical signal to the CH 2 or Y IN connector (22), and the horizontal signal to the CH 1
or X IN connector (24). Once the trace is deflected, restore normal brightness.
3. Adjust the trace height with the CH 2 VOLTS/DIV switch (23) and the trace width with the CH 1
VOLTS/DIV SWITCH (27). The x5 MAG switch (3) on the VARIABLE controls can be used if
greater is necessary, so leave the VARIABLE control (27) knob set CAL.
4. Adjust the trace position vertically (Y-axis) with the CH2 Vertical POSITION control (7). Adjust the
trace position horizontally (X-axis) with the Horizontal POSITION control (10); the CH 1 Vertical
POSITION control has no effect during X-Y operation.
5. Vertical (Y-axis) sign may change the phase by 180° setting CH 2 INV switch.
2.3

Measurement Applications

This section contains instructions for using your unit for specific measurement procedures. However, this
is but a small sampling of the many applications possible for this oscilloscope. These particular
applications were selected to demonstrate certain controls and features not fully covered in BASIC
OPERATING PROCEDURES, to clarify certain operations by example, or for their importance and
universality.
2.3.1

Amplitude Measurements

The modern triggered sweep oscilloscope has two major measurement functions. The first of these is
amplitude. The oscilloscope has an advantage over most other forms of amplitude measurement in that
complex as well as simply waveforms can be totally characterized (i. e. complete voltage information is
available).
Oscilloscope voltage measurement generally fall into one of two types: peak-to-peak or instantaneous
peak-to-peak (p-p) measurement simply notes the total amplitude between extremes without regard to
polarity reference. Instantaneous voltage measurement indicates the exact voltage from each every point
on the waveform to a ground reference. When making either type of measurement, make sure that the
VARIABLE controls are click-stopped fully clockwise.
Peak-to-Peak Voltages
To measure peak-to-peak voltage, proceed as follows:
1. Set up the scope for the vertical mode desired per the instructions in 2-3 BASIC OPERATING
PROCEDURES.
2. Adjust the TIME/DIV switch (15) for two or three cycles of waveform, and set the VOLTS/DIV
switch for the largest-possible totally-on-screen display.
3. Use the appropriate Vertical POSITION control (4) or (7) to position the negative signal peaks on
the nearest horizontal gratitude line below the signals peaks, per Figure 2-5.
- 45 -