FFTアナライザー よくあるご質問
<表1> 16384、8192、4096points
周波数 レンジ |
4,096 点/1,600 ライン |
8,192 点/3,200 ライン |
16,384 点/6,400 ライン |
周波数 レンジ |
|||
分解能 |
時間波形の表示長 |
分解能 |
時間波形の表示長 |
分解能 |
時間波形の表示長 |
||
100 kHz |
62.5 Hz |
16 ms |
31.25Hz |
32 ms |
15.625 Hz |
64 ms |
100 kHz |
50 kHz |
31.25 Hz |
32 ms |
15.625 Hz |
64 ms |
7.8125 Hz |
128 ms |
50 kHz |
40 kHz |
25 Hz |
40 ms |
12.5 Hz |
80 ms |
6.25 Hz |
160 ms |
40 kHz |
32 kHz |
20 Hz |
50 ms |
10 Hz |
100 ms |
5 Hz |
200 ms |
32 kHz |
25 kHz |
15.625 Hz |
64 ms |
7.8125 Hz |
128 ms |
3.90625 Hz |
256 ms |
25 kHz |
20 kHz |
12.5 Hz |
80 ms |
6.25 Hz |
160 ms |
3.125 Hz |
320 ms |
20 kHz |
16 kHz |
10 Hz |
100 ms |
5 Hz |
200 ms |
2.5 Hz |
400 ms |
16 kHz |
10 kHz |
6.25 Hz |
160 ms |
3.125Hz |
320 ms |
1.5625 Hz |
640 ms |
10 kHz |
8 kHz |
5 Hz |
200 ms |
2.5 Hz |
400 ms |
1.25 Hz |
800 ms |
8 kHz |
6.4 kHz |
4 Hz |
250 ms |
2 Hz |
500 ms |
1 Hz |
1 s |
6.4 kHz |
5 kHz |
3.125 Hz |
320 ms |
1.5625 Hz |
640 ms |
781.25 mHz |
1.28 s |
5 kHz |
4 kHz |
2.5 Hz |
400 ms |
1.25 Hz |
800 ms |
625 mHz |
1.6 s |
4 kHz |
3.2 kHz |
2 Hz |
500 ms |
1 Hz |
1 s |
500 mHz |
2 s |
3.2 kHz |
2.5 kHz |
1.5625 Hz |
640 ms |
781.25 mHz |
1.28 s |
390.625 mHz |
2.56 s |
2.5 kHz |
2 kHz |
1.25 Hz |
800 ms |
625 mHz |
1.6 s |
312.5 mHz |
3.2 s |
2 kHz |
1.6 kHz |
1 Hz |
1 s |
500 mHz |
2 s |
250 mHz |
4 s |
1.6 kHz |
1 kHz |
625 mHz |
1.6 s |
156.25 mHz |
3.2 s |
312.5 mHz |
6.4 s |
1 kHz |
800 Hz |
500 mHz |
2 s |
250 mHz |
4 s |
125 mHz |
8 s |
800 Hz |
640 Hz |
400 mHz |
2.5 s |
200 mHz |
5 s |
100 mHz |
10 s |
640 Hz |
500 Hz |
312.5 mHz |
3.2 s |
156.25 mHz |
6.4 s |
78.125 mHz |
12.8 s |
500 Hz |
400 Hz |
250 mHz |
4 s |
125 mHz |
8 s |
62.5 mHz |
16 s |
400 Hz |
320 Hz |
200 mHz |
5 s |
100 mHz |
10 s |
50 mHz |
20 s |
320 Hz |
250 Hz |
156.25 mHz |
6.4 s |
78.125 mHz |
12.8 s |
39.0625 mHz |
25.6 s |
250 Hz |
200 Hz |
125 mHz |
8 s |
62.5 mHz |
16 s |
31.25 mHz |
32 s |
200 Hz |
160 Hz |
100 mHz |
10 s |
50 mHz |
20 s |
25 mHz |
40 s |
160 Hz |
100 Hz |
62.5 mHz |
16 s |
31.25 mHz |
32 s |
15.625 mHz |
64s |
100 Hz |
80 Hz |
50 mHz |
20 s |
25 mHz |
40 s |
12.5 mHz |
80 s |
80 Hz |
64 Hz |
40 mHz |
25 s |
20 mHz |
50 s |
10 mHz |
100 s |
64Hz |
50 Hz |
31.25 mHz |
32 s |
15.625 mHz |
64 s |
7.8125 mHz |
128 s |
50 Hz |
40 Hz |
25 mHz |
40 s |
12.5 mHz |
80 s |
6.25 mHz |
160 s |
40 Hz |
32 Hz |
20 mHz |
50 s |
10 mHz |
100 s |
5 mHz |
200 s |
32Hz |
25 Hz |
15.625 mHz |
64 s |
7.8125 mHz |
128s |
3.90625 mHz |
256s |
25Hz |
20 Hz |
12.5 mHz |
80 s |
6.25 mHz |
160 s |
3.125 mHz |
320 s |
20 Hz |
16 Hz |
10 mHz |
100 s |
5 mHz |
200 s |
2.5 mHz |
400 s |
16Hz |
10 Hz |
6.25 mHz |
160 s |
3.125 mHz |
320 s |
1.5625 mHz |
640 s |
10 Hz |
8 Hz |
5 mHz |
200 s |
2.5 mHz |
400 s |
1.25 mHz |
800 s |
8Hz |
6.4 Hz |
4 mHz |
250 s |
2 mHz |
500 s |
1 mHz |
1,000 s |
6.4Hz |
5 Hz |
3.125 mHz |
320 s |
1.5625 mHz |
640 s |
781.25 μHz |
1,280 s |
5Hz |
4 Hz |
2.5 mHz |
400 s |
1.25 mHz |
800 s |
625 μHz |
1,600 s |
4Hz |
3.2 Hz |
2 mHz |
500 s |
1 mHz |
1,000 s |
500 μHz |
2,000 s |
3.2Hz |
2.5 Hz |
1.5625 mHz |
640 s |
781.25 μHz |
1,280 s |
390.625 μHz |
2,560 s |
2.5Hz |
2 Hz |
1.25 mHz |
800 s |
625 μHz |
1,600 s |
312.5 μHz |
3,200 s |
2Hz |
1.6 Hz |
1 mHz |
1,000 s |
500 μHz |
2,000 s |
250 μHz |
4,000 s |
1.6Hz |
1 Hz |
625 μHz |
1,600 s |
312.5 μHz |
3,200 s |
156.25 μHz |
6,400 s |
1Hz |
800 mHz |
500 μHz |
2,000 s |
250 μHz |
4,000 s |
125 μHz |
8,000 s |
800 mHz |
640 mHz |
400 μHz |
2,500 s |
200 μHz |
5,000 s |
100 μHz |
10,000 s |
640 mHz |
500 mHz |
312.5 μHz |
3,200 s |
156.25 μHz |
6,400 s |
78.125 μHz |
12,800 s |
500 mHz |
400 mHz |
250 μHz |
4,000 s |
125 μHz |
8,000 s |
62.5 μHz |
16,000 s |
400 mHz |
320 mHz |
200 μHz |
5,000 s |
100 μHz |
10,000 s |
50 μHz |
20,000 s |
320 mHz |
250 mHz |
156.25 μHz |
6,400 s |
78.125 μHz |
12,800 s |
39.0625 μHz |
25,600 s |
250 mHz |
200 mHz |
125 μHz |
8,000 s |
62.5 μHz |
16,000 s |
31.25 μHz |
32,000 s |
200 mHz |
160 mHz |
100 μHz |
10,000 s |
50 μHz |
20,000 s |
25 μHz |
40,000 s |
160 mHz |
100 mHz |
62.5 μHz |
16,000 s |
31.25 μHz |
32,000 s |
15.625 μHz |
64,000 s |
100 mHz |
80 mHz |
50 μHz |
20,000 s |
25 μHz |
40,000 s |
12.5 μHz |
80,000 s |
80 mHz |
64 mHz |
40 μHz |
25,000 s |
20 μHz |
50,000 s |
10 μHz |
100,000 s |
64 mHz |
50 mHz |
31.25 μHz |
32,000 s |
15.625 μHz |
64,000 s |
7.8125 μHz |
128,000 s |
50 mHz |
40 mHz |
25 μHz |
40,000 s |
12.5 μHz |
80,000 s |
6.25 μHz |
160,000 s |
40 mHz |
32 mHz |
20 μHz |
50,000 s |
10 μHz |
100,000 s |
5 μHz |
200,000 s |
32 mHz |
25 mHz |
15.625 μHz |
64,000 s |
7.8125 μHz |
128,000 s |
3.90625 μHz |
256,000 s |
25 mHz |
20 mHz |
12.5 μHz |
80,000 s |
6.25 μHz |
160,000 s |
3.125 μHz |
320,000 s |
20 mHz |
16 mHz |
10 μHz |
100,000 s |
5 μHz |
200,000 s |
2.5 μHz |
400,000 s |
16 mHz |
10 mHz |
6.25 μHz |
160,000 s |
3.125 μHz |
320,000 s |
1.5625 μHz |
640,000 s |
10 mHz |