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The densitometer is basically a light source aimed at a photoelectric cell. [2] It determines the density of a sample placed between the light source and the photoelectric cell from differences in the readings. [3] Modern densitometers have the same components, but also have electronic integrated circuitry for better reading. [4]
A density meter (densimeter) is a device which measures the density of an object or material. Density is usually abbreviated as either or .Typically, density either has the units of / or /.
The corresponding measuring device is called a densitometer (absorptiometer). The decadic (base-10) logarithm of the reciprocal of the transmittance is called the absorbance or density. [1] DMax and DMin refer to the maximum and minimum density that can be produced by the material. The difference between the two is the density range. [1]
Gravitometer may refer to: Gravimeter, an instrument for measuring the local gravitational field; Hydrometer, referred to in pipeline work as a gravitometer
Gravity is usually measured in units of acceleration.In the SI system of units, the standard unit of acceleration is metres per second squared (m/s 2).Other units include the cgs gal (sometimes known as a galileo, in either case with symbol Gal), which equals 1 centimetre per second squared, and the g (g n), equal to 9.80665 m/s 2.
Microdensitometer. A microdensitometer is an optical instrument used to measure optical densities in the microscopic domain. [1] [2] [3] A well-known microdensitometer, used in the photographic industry, is a granularity instrument or granularity machine. [2]