RIGOL Chapter 6 Operations and Measurements
6-40 DS8000-R User Guide
click Set Reference to take the current cursor position as the
reference. The current positions of Cursor A and Cursor B are
respectively defined as "0%" and "100%". Meanwhile, two cursors (in
blue) that cannot be moved are displayed on the screen as the ratio
reference position (the ratio position at "0%" and "100%" are
respectively marked by a solid line and a dotted line). Before you set
manually, the oscilloscope adopts the default ratio reference position.
âš« When "Y" is selected under Select, you can set the vertical measurement
unit. When the source can be Math1-Math4, this menu is grayed out and
disabled.
Click More → Vert. Unit to select the vertical measurement unit. The
available units include "Source" and "Percent(%)".
➢ Source: measures the amplitude at Y Cursor (taking the channel
ground point as the reference). The measurement results include AY,
BY, and â–³Y (its unit is consistent with that of the current source).
➢ Percent(%): measures ratio at Y Cursor. The measurement results
include AY, BY, and â–³Y, and they are all expressed in percentage.
This oscilloscope allows you to set the reference position for the ratio
according to your needs. After adjusting Y Cursor to a desired position,
click Set Reference to take the current cursor position as the
reference. The current positions of Cursor A and Cursor B are
respectively defined as "0%" and "100%". Meanwhile, two cursors (in
blue) that cannot be moved are displayed on the screen as the ratio
reference position (the ratio position at "0%" and "100%" are
respectively marked by a solid line and a dotted line). Before you set
manually, the oscilloscope adopts the default ratio reference position.
6. Measurement Example
Measure the period of a sine wave by using the manual cursor measurement
and auto measurement respectively. The measurement results are both 1 ms, as
shown in Figure 6-3.
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