Decibel with the abbreviation dB is equal to one-tenth of a bel, after Alexander Graham Bell. It is a measuring system first used in telephony in 1929. It is a logarithmic unit of measurement that expresses the magnitude of a physical quantity, usually power or intensity, relative to a specified or implied reference level. Since it expresses a ratio of two quantities with the same unit, it is a dimensionless unit. The inventor of the SPL meter (sound pressure level meter) was not Alexander Graham Bell, but it were the engineers of Bell Telephone Company, New Jersey
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Decibel
The decibel.
1 neper = 8.6858896381 decibel.
The decibel level of a rat depends on the measurig distance to the rat. The closer you are to the mouth of the rat the louder the noise you can measure will be.
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The decibel scale was originally used to quantify signal loss in a telephone circuit. The original unit, bel, was named in honor of Alexander Graham Bell. The decibel was devised by the Bell Telephone Laboratories in the 1920's.
The Welsh word for 'decibel' is desibel.
What are the uses of DECIBEL?
How do you use the word decibel in a sentence?What is decibel used for?
The abbreviation for decibel is dB.
The bell is a large unit, so a subunit, a decibel, is usually used. There is no subunit of decibel.
another name for decibel
A decibel is a measure for sound.
Decibel is abbreviated as "dB."
A decibel is the unit of measuring the level of sound.
What is the decibel level of a car horn?