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nates, the setting is chosen to be as small as possible, but greater than the required min-
imum averaging time.
In practice, it is found that there is a lower limit to the frequency range for reliable analy-
sis with these settings. See section 4. 7 for details.
Max. f{Hz)
63
200
630
2 k
6,3 k
20 k
N"
3,16
0,3
0,1
0,03
0,01
0,003
0,001
I
10
3
1
0,3
0,1
0,03
0,01
~
31,6
10
10
3
1
0,3
0,1
.....
"0
·~
100
-
10
10
10
3
1
"0
316
10
10
3
c
-
-
-
co
co
1000
-
-
-
-
-
10
740199
Table 4. 6. PAPER SPEED (mmls) for DC Recording of Deterministic
Signals, Logarithmic Sweep
Bandwidth {Hz)
Averaging Time {s)
3,16
0,3
10
0,1
31,6
0,1
100
0,1
316
0,1
1000
0,1
740203
Table 4.
7.
AVERAGING TIMES for DC Recording of Deterministic Sig-
nals, Logarithmic Sweep
4.4.2. Optimum Scanning Rate - Linear Sweep
If filter response time is the dominating factor, then the dwell time To is set equal to
twice the filter response timeT
F,
i.e.:
Using equation 7, for paper QP 11 02, and assuming that FREQUENCY SCALE
"x
1 Lin"
is used on the 201 0, then
p
using equation 9 also:
p
8
7 5. 1Q-3-
,
T
D
1,875 · 10-
3 a2
( 14)
If the necessary averaging time is the dominating factor, then the dwell time is set equal
to twice the averaging time:
51
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