FFTアナライザー よくあるご質問
<表3> 512、256、125 point s
周波数 |
512 点/200 ライン |
256 点/100 ライン |
128 点/50 ライン |
周波数 |
|||
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 |
500 Hz |
2 ms |
1,000 Hz |
1 ms |
2,000 Hz |
0.5 ms |
100 kHz |
50 kHz |
250 Hz |
4 ms |
500 Hz |
2 ms |
1,000 Hz |
1 ms |
50 kHz |
40 kHz |
200 Hz |
5 ms |
400 Hz |
2.5 ms |
800 Hz |
1.25 ms |
40 kHz |
32 kHz |
160 Hz |
6.25 ms |
320 Hz |
3.125 ms |
640 Hz |
1.5625 ms |
32 kHz |
25 kHz |
125 Hz |
8 ms |
250 Hz |
4 ms |
500 Hz |
2 ms |
25 kHz |
20 kHz |
100 Hz |
10 ms |
200 Hz |
5 ms |
400 Hz |
2.5 ms |
20 kHz |
16 kHz |
80 Hz |
12.5 ms |
160 Hz |
6.25 ms |
320 Hz |
3.125 ms |
16 kHz |
10 kHz |
50 Hz |
20 ms |
100 Hz |
10 ms |
200 Hz |
5 ms |
10 kHz |
8 kHz |
40 Hz |
25 ms |
80 Hz |
12.5 ms |
160 Hz |
6.25 ms |
8 kHz |
6.4 kHz |
32 Hz |
31.25 ms |
64 Hz |
15.625 ms |
128 Hz |
7.8125 ms |
6.4 kHz |
5 kHz |
25 Hz |
40 ms |
50 Hz |
20 ms |
100 Hz |
10 ms |
5 kHz |
4 kHz |
20 Hz |
50 ms |
40 Hz |
25 ms |
80 Hz |
12.5 ms |
4 kHz |
3.2 kHz |
16 Hz |
62.5 ms |
32 Hz |
31.25 ms |
64 Hz |
15.625 ms |
3.2 kHz |
2.5 kHz |
12.5 Hz |
80 ms |
25 Hz |
40 ms |
50 Hz |
20 ms |
2.5 kHz |
2 kHz |
10 Hz |
100 ms |
20 Hz |
50 ms |
40 Hz |
25 ms |
2 kHz |
1.6 kHz |
8 Hz |
125 ms |
16 Hz |
62.5 ms |
32 Hz |
31.25 ms |
1.6 kHz |
1 kHz |
5 Hz |
200 ms |
10 Hz |
100 ms |
20 Hz |
50 ms |
1 kHz |
800 Hz |
4 Hz |
250 ms |
8 Hz |
125 ms |
16 Hz |
62.5 ms |
800 Hz |
640 Hz |
3.2 Hz |
312.5 ms |
6.4 Hz |
156.25 ms |
12.8 Hz |
78.125 ms |
640 Hz |
500 Hz |
2.5 Hz |
400 ms |
5 Hz |
200 ms |
10 Hz |
100 ms |
500 Hz |
400 Hz |
2 Hz |
500 ms |
4 Hz |
250 ms |
8 Hz |
125 ms |
400 Hz |
320 Hz |
1.6 Hz |
625 ms |
3.2 Hz |
312.5 ms |
6.4 Hz |
156.25 ms |
320 Hz |
250 Hz |
1.25 Hz |
800 ms |
2.5 Hz |
400 ms |
5 Hz |
200 ms |
250 Hz |
200 Hz |
1 Hz |
1 s |
2 Hz |
500 ms |
4 Hz |
250 ms |
200 Hz |
160 Hz |
800 mHz |
1.25 s |
1.6 Hz |
625 ms |
3.2 Hz |
312.5 ms |
160 Hz |
100 Hz |
500 mHz |
2 s |
1 Hz |
1 s |
2 Hz |
500 ms |
100 Hz |
80 Hz |
400 mHz |
2.5 s |
800 mHz |
1.25 s |
1.6 Hz |
625 ms |
80 Hz |
64 Hz |
320 mHz |
3.125 s |
640 mHz |
1.5625 s |
1.28 Hz |
781.25 ms |
64 Hz |
50 Hz |
250 mHz |
4 s |
500 mHz |
2 s |
1 Hz |
1 s |
50 Hz |
40 Hz |
200 mHz |
5 s |
400 mHz |
2.5 s |
800 mHz |
1.25 s |
40 Hz |
32 Hz |
160 mHz |
6.25 s |
320 mHz |
3.125 s |
640 mHz |
1.5625 s |
32 Hz |
25 Hz |
125 mHz |
8 s |
250 mHz |
4 s |
500 mHz |
2 s |
25 Hz |
20 Hz |
100 mHz |
10 s |
200 mHz |
5 s |
400 mHz |
2.5 s |
20 Hz |
16 Hz |
80 mHz |
12.5 s |
160 mHz |
6.25 s |
320 mHz |
3.125 s |
16 Hz |
10 Hz |
50 mHz |
20 s |
100 mHz |
10 s |
200 mHz |
5 s |
10 Hz |
8 Hz |
40 mHz |
25 s |
80 mHz |
12.5 s |
160 mHz |
6.25 s |
8 Hz |
6.4 Hz |
32 mHz |
31.25 s |
64 mHz |
15.625 s |
128 mHz |
7.8125 s |
6.4 Hz |
5 Hz |
25 mHz |
40 s |
50 mHz |
20 s |
100 mHz |
10 s |
5 Hz |
4 Hz |
20 mHz |
50 s |
40 mHz |
25 s |
80 mHz |
12.5 s |
4 Hz |
3.2 Hz |
16 mHz |
62.5 s |
32 mHz |
31.25 s |
64 mHz |
15.625 s |
3.2 Hz |
2.5 Hz |
12.5 mHz |
80 s |
25 mHz |
40 s |
50 mHz |
20 s |
2.5 Hz |
2 Hz |
10 mHz |
100 s |
20 mHz |
50 s |
40 mHz |
25 s |
2 Hz |
1.6 Hz |
8 mHz |
125 s |
16 mHz |
62.5 s |
32 mHz |
31.25 s |
1.6 Hz |
1 Hz |
5 mHz |
200 s |
10 mHz |
100 s |
20 mHz |
50 s |
1 Hz |
800 mHz |
4 mHz |
250 s |
8 mHz |
125 s |
16 mHz |
62.5 s |
800 mHz |
640 mHz |
3.2 mHz |
312.5 s |
6.4 mHz |
156.25 s |
12.8 mHz |
78.125 s |
640 mHz |
500 mHz |
2.5 mHz |
400 s |
5 mHz |
200 s |
10 mHz |
100 s |
500 mHz |
400 mHz |
2 mHz |
500 s |
4 mHz |
250 s |
8 mHz |
125 s |
400 mHz |
320 mHz |
1.6 mHz |
625 s |
3.2 mHz |
312.5 s |
6.4 mHz |
156.25 s |
320 mHz |
250 mHz |
1.25 mHz |
800 s |
2.5 mHz |
400 s |
5 mHz |
200 s |
250 mHz |
200 mHz |
1 mHz |
1,000 s |
2 mHz |
500 s |
4 mHz |
250 s |
200 mHz |
160 mHz |
800 μHz |
1,250 s |
1.6 mHz |
625 s |
3.2 mHz |
312.5 s |
160 mHz |
100 mHz |
500 μHz |
2,000 s |
1 mHz |
1,000 s |
2 mHz |
500 s |
100 mHz |
80 mHz |
400 μHz |
2,500 s |
800 μHz |
1,250 s |
1.6 mHz |
625 s |
80 mHz |
64 mHz |
320 μHz |
3,125 s |
640 μHz |
1,562.5 s |
1.28 mHz |
781.25 s |
64 mHz |
50 mHz |
250 μHz |
4,000 s |
500 μHz |
2,000 s |
1 mHz |
1,000 s |
50 mHz |
40 mHz |
200 μHz |
5,000 s |
400 μHz |
2,500 s |
800 μHz |
1,250 s |
40 mHz |
32 mHz |
160 μHz |
6,250 s |
320 μHz |
3,125 s |
640 μHz |
1,562.5 s |
32 mHz |
25 mHz |
125 μHz |
8,000 s |
250 μHz |
4,000 s |
500 μHz |
2,000 s |
25 mHz |
20 mHz |
100 μHz |
10,000 s |
200 μHz |
5,000 s |
400 μHz |
2,500 s |
20 mHz |
16 mHz |
80 μHz |
12,500 s |
160 μHz |
6,250 s |
320 μHz |
3,125 s |
16 mHz |
10 mHz |
50 μHz |
20,000 s |
100 μHz |
10,000 s |
200 μHz |
5,000 s |
10 mHz |