Ectron 441A, Инструкция по эксплуатации, Страница: 37 / 74

and
+
5 V. Note that for the plot for an input frequency of 10 kHz, uncertainty reaches
0.023 V when (f
U
−
f
L
) reaches 100 Hz. This could be for an upper-frequency setting of
10,050 Hz and a lower-frequency setting of 9950 Hz. Even for a frequency setting difference
of 10 Hz, uncertainty at 10 kHz only reaches a total of 0.27 V out of a full scale of 0 V
to 5 V.
Figure 4-2 shows that resolution reaches a worst case of 0.015 V for input frequencies of
up to 2,000 Hz and a frequency set-points difference of 1000 Hz or higher. Again, output
voltage set points are 0 V and
+
5 V. However, as input frequency increases and the frequency
set-points difference decreases, resolution degrades. Fortunately, extreme sets of conditions
should seldom occur.
Figure 4-3 is a combination of Figures 4-1 and 4-2 to illustrate the worst case the user can
expect at extreme settings.
Figure 4-4
Maximum Output Noise with a 10 mV Sine-wave Input
Model 441A Applications
4-7