HBM ClipX Bedienungsanleitung Seite 98

White noise function
The noise signal is generated by a hardware noise source (integrated circuit).
7.4.2.19 Pulse-width measurement
This calculation measures the time between two edges. You can use one or two (digital)
channels (flags) as the input. The result can be output as time (seconds or millisec-
onds) or as frequency (1/s). Specify the same channel for Start with and Stop with, and
use different levels if you only want to use one input channel.
Maximum resolution (smallest measurement duration): 1/update rate; at an update rate
of 1000/s this is equivalent to 1 ms.
Maximum measurement duration: 600 s. The output becomes invalid and the calcula-
tion is stopped if the maximum measurement duration is exceeded. This status is reset
by the next start signal.
Pulse duration, corresponding frequency and achievable measurement uncertainty
Pulse duration in ms
10
20
50
100
200
500
1000
2000
7.4.2.20 Timer
After a programmable time (Interval), sets the Timer Flag to active and holds the level
over the Pulse Length before the level is reset to inactive. If you enter 0 for the Pulse
Length, the flag is set to active at least for one update interval (1/update rate = 1 ms).
The maximum interval is 200,000 seconds. The Pulse Length should be shorter than the
96
Frequency in Hz
100
50
20
10
5
2
1
0.5
Measurement uncertainty
as a %
10
5
2
1
0.5
0.2
0.1
0.05
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