a unit of sound intensity equal to ten decibels.
One Bel is the amount of change in the power applied to a system that a person can detect. It's a ratio of power difference, not a fixed value. When the ratio involves standard units of reference, fixed values can be derived. It's a measure of watts (power), not voltage. A Bel is usually too large of an increment, therefore the Decibel (1/10th of a Bel) is commonly used.
The common logarithm of the ratio of two amounts of power. The abbreviation for Bel is "B." If P1/P2 is the ratio of two powers, then this ratio expressed in Bels, N, is N = log10 (P1/P2).
Unit of measurement, named after Alexander Graham Bell. Mathematically, the number of bels, gain or l oss in power, is calculated as B = log10(P1/P2) where P1 and P2 are power levels in a system. One at each end, one in the middle and one at the other end or whatever.
a unit of sound level based on a logarithmic scale.
A unit for expressing the ratio of two powers. The number of Bels is the logarithm to the base 10 of the power ratio
a logarithmic unit of sound intensity equal to 10 decibels
The ratio of intensities of two sounds in which the power of one sound is ten times that of another.
Measurement of Voltage, Current and Power gain. 1 Bel indicates 10 times of Power. 2 Bel or 20 Bel indicates 100 times increase of power.
The unit of the difference between two powers. The general expression is the decibel (one-tenth of a bel).
A measure of voltage, current or power gain. One Bel is defined as a tenfold increase in power. If an amplifier increases a signal\'s power by a factor of 10, its power gain is 1 Bel or 10 decibels (dB). If power is increased by 100 times, the power gain is 2 Bels or 20 decibels. 0.3dB is considered doubling.
A measurement of sound intensity named in honor of Alexander Graham Bell. Initially used to relate intensity to a level corresponding to hearing sensation.
A unit of measurement referring to sound intensity. One bel equals 10 decibels.
The logarithm to the base 10 of a power ratio, expressed as: B = log10(P1/P2), where P1 and P2 are distinct powers. The decibel, equal to one-tenth bel, is a more commonly used unit.
A unit that represents the logarithm of the ratio of two levels.
The logarithm to the base 10 of a power ratio, expressed as: B = log 10), where P and P are distinct powers. The decibel, equal to one-tenth bel, is a more commonly used unit.
A unit of measure for expressing the ratio between two amounts of power (used to refer to the intensity of sound energy). One bel = 10 decibels.
Abbr., Ten decibels. [After Alexander Graham Bell.] The Bel was the amount a signal dropped in level over a one-mile distance of telephone wire. See: decibel