한국   대만   중국   일본 
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100 10 000 000 000 100 000
90 1 000 000 000 31 623
80 100 000 000 10 000
70 10 000 000 3 162
60 1 000 000 1 000
50 100 000 316 .2
40 10 000 100
30 1 000 31 .62
20 100 10
10 10 3 .162
6 3 .981 ? 4 1 .995 ? 2
3 1 .995 ? 2 1 .413 ? ?
1 1 .259 1 .122
0 1 1
?1 0 .794 0 .891
?3 0 .501 ? ? ? 0 .708 ? '"`UNIQ--templatestyles-????????-QINU`"' ? ?
?6 0 .251 ? ? ? 0 .501 ? ? ?
?10 0 .1 0 .316 2
?20 0 .01 0 .1
?30 0 .001 0 .031 62
?40 0 .000 1 0 .01
?50 0 .000 01 0 .003 162
?60 0 .000 001 0 .001
?70 0 .000 000 1 0 .000 316 2
?80 0 .000 000 01 0 .000 1
?90 0 .000 000 001 0 .000 031 62
?100 0 .000 000 000 1 0 .000 01
An example scale showing power ratios x , amplitude ratios x , and dB equivalents 10 log 10   x .

??????? ??? ???????? ???? ???? ?? ????? ?? ????? ?? ????? ??? ??? ?? ???????? ?????????? ?????? ????? ?? ??????? ????? ???????? ??? ???????? ??????? ????? ??????? ???? "?????????? ???"-?? ????????? ??? ??? ??????????? ?? ????????????? (????? ???? ?????????? ??????? ??? ?????, ?? ??? ?????? ???)? ????? ???????????? ??????? ???????? ??? ? ??????? ???, ????? ????? ???????????? ?????? ?? ?/?? ??? ?????????????? ?????? ?? ?/?? [?] [?]

????? ???????? ????? ??? ??? ??????? ??????? ????? ??????? ???? ??????? ???????? ????? ??????? ????????? ????? ?????? ?????? ???? ????????? ????????? ??? ?????????? ???????? ??????? ???????? ???? ????? ??? ???? ??? ????????? ??? ? ????? ???? ????, ??? ??? ?????????? ?????? ??? V (???????????? - ?? dBV, ?? ??????? ?????)? ???? ??? ??????? ????????? ??? ? ????????? ???, ????? ?????????? ?????? ??? M (????????????-?? dBM, ?? ?????? ?????????)? [?]

???????? ???????? ??? ??????? ??? ??????? ???? ?????? ???????? ???? ????? ???????? ??????? ??? ???? ??????? ?????? ???????? ????????, ????????? ?????? ?? ?? ??????? ????????? ?? ???? ??????????? ? ?????????????? ??? ??? ?????? ???? ??? ???????????? ???? ????? ??????? ??? ?? ?? ?????? (??, ???, ????) ???? ????? ????, ????? ????? ??????? ?????????? ???????? ????? ??? ?? ??????? ????? ????? ???????????? ??? ????, ???????????? ???? ????/????????? ??????? ??^? ?? ??? ????? ???????? ????? ???????? ????? ??? ?? ??????? ??? ????? ?????????, ????????? ??????? ??? ??? ??? ?????? ????, ????? ???????? ????????? ??? ?? ??????? ?????? ?????

??????? ??????????? ??????????? ??????? ??????? ????? ??????? ???? ???? ?????????????? ??? ???????? ?????????? ???? ???????? ???? ??????? ?????? ??????? ???? ???? ??????? ???????? ? ????????? ????????? ??????????? ??????? ????? ??????? ????? ?????? ???? ?? ?????? ??? ???? ???? ?? ????? ?? ????? ?? ??? ?? ???????- ???? ??? ?????? ???????? ??????? ??? ?? ????? ?????????? ?????? ????????? ???????, ??? ??? ????? ??????? ??? ????? ???? ??????????? , ????????? ?????? ? ?????????? ?????? ?? ??????? ? ?????????? ??????? ???????? ??????? ????? ???? ??????? ????????? ???????????? ???? , ???? ??????? ??????? ?????? ??????? ??????? ????? (Attenuation) ? ?????-?????? ?????? ??????? ???? ?????? ??? ???? ?????

??????????? ???? ???????? ??????? ?????? ????????, ??????? ???????? ???? ???, ?? ?????????? ????????????? ????? ?????????????? ???????? ??????? ??????? ??? ??? ??????????? ?? ????????????? ??????? ??????? ???? [?]

?????? [ ???????? ]

????????? ? ??????? ???????? ???????? ????? (Signal loss) ?????? ???? ????? ?????? ???????? ??????? ?????? ??????? ??????? ?????? "????? ?? ????????????? ????" (??????) ????? ???????? ???????? ????? ????? ??? ???? ? ???? ????????? ????? ??????? ???? ????? ???????? ???? ???????? ????? ????? ??? ??? ??? ??? ?? ??????? ???? ?????? ?????? ?? ?????? ?????? ????? ????? ?????? ???? ?????, ?? ?????? ?????? ?? ?????? ???????? ???? ????????? ????? ??????? ????? ?????? ???-"????? ???????? ?? ??? ???????? ?????? ??? ? ????? ????? ?.??? ????? ( ????? ?????? ?????????? ????????? ???? ?????-?????? ?? ???? ??? ???? ??? ??????) ?????????????? ????"

???? ???? ??? ???????? ????????????? ???????? ??????? ??? ???? ????????? ??????? ?? ?????? ??????? ??????????? ????? ?????? ???????????? ???? ?? ??????=?.??? ??????????? ?????? ???? ???? ??????????? ????? ???-?? ??????? ??? ?????? ???????????? ??? ???? [?]

????????? [ ???????? ]

  1. Mark, James E. (?? ??????? ????)? "Physical Properties of Polymers Handbook" – ui.adsabs.harvard.edu-?? ????????  
  2. Yost, William A. (?? ??????? ????)? "Fundamentals of hearing : an introduction" ? New York : Holt, Rinehart and Winston – Internet Archive-?? ????????  
  3. "Utilities:VRMS/dBm/dBu/dBV calculators - Design Center - Analog Devices" ? www.analog.com ?  
  4. 14:00-17:00? "ISO 80000-3:2006" ? ISO ?  
  5. Laboratories, Bell Telephone (?? ??????? ????)? "Bell Laboratories Record" ? Bell Telephone Laboratories – Google Books-?? ????????