YOKOGAWA DL750 - Page 715

App-42
IM 701210-06E
• IIR (Butterworth) Band-pass: Pass-band Width 20%
-80
-60
-40
-20
0
IIR (Butterworth) Band-pass Frequency Characteristics Pass-band Width 20%
30%
25%20%15%10.2%
dB
0 f 0.1 f 0.2 f 0.3 f 0.4 f 0.5 f
0
20
40
60
80
100
120
140
s/T
s
IIR (Butterworth) Band-pass Group Delay Characteristics (1) Pass-band Width 20%
10.2%
0 f 0.1 f 0.2 f 0.3 f 0.4 f 0.5 f
0
1
2
3
4
5
6
7
s/Ts
IIR (Butterworth) Band-pass Group Delay Characteristics (2) Pass-band Width 20%
15%
20%
25%
30%
0 f 0.1 f 0.2 f 0.3 f 0.4 f 0.5 f
(f: sampling frequency [Hz])
Appendix 6 DSP Channel Computation (Optional)