Rise-Time Measurement - Philips PM32671 Service Manual

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t l
t 2
Fig. 1.1. Rise-time measurement
Rise-time of oscilloscope
NOTE: Bear in mind that inaccuracies of CRT and time-base and rise-time of generator
(measured with an input pulse with a rise-time
Rise-time measurement of a signal applied to the vertical inputs:
Bear in mind that the rise-time measured on the oscilloscope screen is influenced by the rise-time of the
oscilloscope according to the formula:
The measuring fault if the rise-time of the input pulse is
M A T 861
= (90%) - t l (10%) (general formula)
0.35
bandwidth (Hz) of the instrument
lns) influence this measurement.
4 times the rise-time of the oscilloscope.
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