Fluke 124 — измерение времени подъема с помощью курсоров на осциллографе [45/86]

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Using The Test Tool

Making Cursor Measurements

The readout shows the time difference ‘t’ between the

cursors and the voltage difference between the two

markers (See Figure 1-20).

The signal frequency is displayed behind 1/t if exactly 1

signal period is between the cursors.

Making Rise Time Measurements

To measure rise time, do the following:

 From Scope mode, display the

Cursor Key functions.

 Press to highlight (rise time).

Observe that two horizontal

cursors are displayed.

 If only one trace is displayed,

select MANUAL or AUTO. AUTO

automatically does steps 4 to 6.

For multiple traces select the

required trace A or B.

 Move the upper cursor to 100%

of the trace height. A marker is

shown at 90%.

 Highlight the other cursor.

⑥ Move the lower cursor to 0% of

the trace height. A marker is

shown at 10%.

Figure 1-21. Risetime Measurement with Cursors