dB換算表DATA
dB・電力・電圧換算表
●dB換算表 |
|
|
く増幅比) |
dB/m一電力換算表(Z=50Ω) |
dB |
電圧比(倍) |
電力比(倍) |
dB/m |
電力<mW) |
|
dB/m |
電力<mW) |
0 |
1 |
1 |
0 |
1 |
|
7 |
5.01 |
0.5 |
1.059 |
1.122 |
1 |
1.26 |
|
8 |
6.31 |
1 |
1.122 |
1.259 |
2 |
1.58 |
|
9 |
7.94 |
1.5 |
1.189 |
1.412 |
3 |
2 |
|
10 |
10 |
2 |
1.259 |
1.585 |
4 |
2.51 |
|
20 |
100 |
2.5 |
1.334 |
1.778 |
5 |
3.16 |
|
30 |
1W |
3 |
1.413 |
1.995 |
6 |
3.98 |
|
40 |
10W |
3.5 |
1.496 |
2.239 |
|
4 |
1.585 |
2.512 |
dB/u一電圧換算表(Z=50Ω) |
4.5 |
1.679 |
2.818 |
dB/u |
電圧(μX) |
|
dB/u |
電圧(μX) |
5 |
1.778 |
3.162 |
0 |
1 |
|
7 |
2.24 |
5.5 |
1.884 |
3.548 |
1 |
1.12 |
|
8 |
2.51 |
6 |
1.995 |
3.981 |
2 |
1.26 |
|
9 |
2.82 |
6.5 |
2.113 |
4.467 |
3 |
1.41 |
|
10 |
3.16 |
7 |
2.239 |
5.012 |
4 |
1.58 |
|
20 |
10 |
7.5 |
2.371 |
5.623 |
5 |
1.78 |
|
30 |
31.62 |
8 |
2.512 |
6.310 |
6 |
2 |
|
40 |
100 |
8.5 |
2.661 |
7.079 |
|
9 |
2.818 |
7.943 |
9.5 |
2.985 |
8.913 |
10 |
3.162 |
10.0 |
10.5 |
3.35 |
11.22 |
11 |
3.548 |
12.59 |
11.5 |
3.758 |
14.13 |
12 |
3.981 |
15.85 |
12.5 |
4.217 |
17.78 |
13 |
4.467 |
19.95 |
13.5 |
4.732 |
22.39 |
14 |
5.012 |
25.12 |
14.5 |
5.309 |
28.18 |
15 |
5.623 |
31.62 |
15.5 |
5.957 |
35.48 |
16 |
6.31 |
39.81 |
16.5 |
6.683 |
44.67 |
17 |
7.079 |
50.12 |
17.5 |
7.499 |
56.23 |
18 |
7.943 |
63.10 |
18.5 |
8.414 |
70.79 |
19 |
8.913 |
79.43 |
19.5 |
9.441 |
89.13 |
20 |
10 |
100 |
30 |
31.62 |
1000 |
40 |
100 |
10000 |
50 |
316.2 |
100000 |
60 |
1000 |
1000000 |
70 |
3162 |
10000000 |
80 |
10000 |
100000000 |
90 |
31620 |
1000000000 |
100 |
100000 |
10000000000 |
|
く減衰比) |
dB |
電圧比(倍) |
電力比(倍) |
0 |
1 |
1 |
0.5 |
0.944 |
0.891 |
1 |
0.891 |
0.794 |
1.5 |
0.841 |
0.708 |
2 |
0.794 |
0.631 |
2.5 |
0.75 |
0.562 |
3 |
0.708 |
0.501 |
3.5 |
0.668 |
0.447 |
4 |
0.631 |
0.398 |
4.5 |
0.596 |
0.355 |
5 |
0.562 |
0.316 |
5.5 |
0.531 |
0.282 |
6 |
0.501 |
0.251 |
6.5 |
0.473 |
0.224 |
7 |
0.447 |
0.199 |
7.5 |
0.422 |
0.178 |
8 |
0.39 |
0.158 |
8.5 |
0.376 |
0.141 |
9 |
0.355 |
0.126 |
9.5 |
0.335 |
0.112 |
10 |
0.316 |
0.1 |
10.5 |
0.298 |
0.089 |
11 |
0.282 |
0.079 |
11.5 |
0.266 |
0.0708 |
12 |
0.251 |
0.0631 |
12.5 |
0.237 |
0.056 |
13 |
0.224 |
0.05 |
13.5 |
0.211 |
0.044 |
14 |
0.199 |
0.039 |
14.5 |
0.188 |
0.035 |
15 |
0.178 |
0.031 |
15.5 |
0.168 |
0.028 |
16 |
0.158 |
0.025 |
16.5 |
0.15 |
0.022 |
17 |
0.141 |
0.019 |
17.5 |
0.133 |
0.018 |
18 |
0.126 |
0.016 |
18.5 |
0.12 |
0.014 |
19 |
0.112 |
0.012 |
19.5 |
0.106 |
0.011 |
20 |
0.1 |
0.01 |
30 |
3.162×10^2 |
0.001 |
40 |
0.01 |
0.0001 |
50 |
3.162×10^3 |
0.00001 |
60 |
0.001 |
10^-6 |
70 |
3.162×10^4 |
10^-7 |
80 |
0.0001 |
10^-8 |
90 |
3.162×10^5 |
10^-9 |
100 |
0.00001 |
10^-10 |