densitometer

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densitometer

 [den″-sĭ-tom´ĕ-ter]
1. an instrument for determining density or specific gravity of a liquid.
2. an instrument used to measure the degree of exposure (darkening) on photographic or x-ray film.

den·si·tom·e·ter

(den'si-tom'ĕ-tĕr),
1. An instrument for measuring the density of a fluid. Synonym(s): densimeter
2. An instrument for measuring, by virtue of relative turbidity, the growth of bacteria in broth; useful in microbiologic assay of nutrients and antibiotics, phage studies.
3. An instrument for measuring the density of components (for example, protein fractions) separated by electrophoresis or chromatography, using light absorption or reflection.
4. An electronic instrument for measuring the blackening of radiographic film by x-ray exposure; used for film sensitometry, bone densitometry, measurement of line spread function (microdensitometer).
5. An instrument for measuring the extent to which a material absorbs or reflects light.
[L. densitas, density, + G. metron, measure]

densitometer

(dĕn′sĭ-tŏm′ĭ-tər)
n.
1. An apparatus for measuring the optical density of a material, such as a photographic negative.

den′si·tom′e·try (-trē) n.

densitometer

[den′sitom′ətər]
Etymology: L, densus + Gk, metron, measure
a device that uses a photoelectric cell to detect differences in the intensity of light transmitted through a substance, such as x-ray film.

den·si·tom·e·ter

(dens'i-tom'ĕ-tĕr)
1. An instrument for measuring the density of a fluid.
Synonym(s): densimeter.
2. An instrument for measuring, by virtue of relative turbidity, the growth of bacteria in broth; useful in microbiologic assay of nutrients and antibiotics and phage studies.
3. An instrument for measuring the density of components (e.g., protein fractions) separated by electrophoresis or chromatography, using light absorption or reflection.
4. An electronic instrument for measuring the blackening of radiographic film by x-ray exposure; used for film densitometry, bone densitometry, measurement of line spread function (microdensitometer).
[L. densitas, density, + G. metron, measure]

den·si·tom·e·ter

(dens'i-tom'ĕ-tĕr)
1. An instrument for measuring the density of a fluid.
2. An instrument for measuring the growth of bacteria in broth.
3. An instrument for measuring the density of components separated by electrophoresis or chromatography, using light absorption or reflection.
4. An electronic instrument for measuring the blackening of radiographic film by x-ray exposure; used for film densitometry and bone densitometry.
[L. densitas, density, + G. metron, measure]

densitometer (den´sitom´ətur),

n an instrument for determining the degree of darkening of developed photographic or radiographic film, based on the use of a photoelectric cell to measure the light transmission through a given area of the film.

densimeter, densitometer

1. an instrument for determining density or specific gravity of a liquid.
2. an instrument used for measuring photographic transmission and/or reflection density.
References in periodicals archive ?
Replacement engineering development--The goal of this work front was the development of basic engineering for the application of non-radioactive densitometers to replace radioactive units used in mineral processing facilities, taking into account the specific characteristics of each application and non-radioactive alternative (measuring principle, measuring range, installation aspects, etc.
The global bone densitometers market segmentation is based on technology (axial bone densitometry, dual energy x-ray absorptiometry, quantitative computed tomography, peripheral bone densitometry, single energy x-ray absorptiometry, dual energy x-ray absorptiometry, radiographic absorptiometry, quantitative ultrasound, peripheral quantitative computed tomography), and end users (hospital-based bone densitometers, clinic-based bone densitometers).
North America Bone Densitometers Market Outlook to 2020
Reflection densitometers (Leach and Pierce, 1993) compare the light reflected from the unprinted substrate surface to the light reflected from the printed surface.
Klaus Schwuchow, a member of the DIN 6868 committee and the president of Peha Medicine, recently told me that daily data collection, data evaluation and recordkeeping for processor quality control has become less burdensome with the implementation of automated densitometers and computerized programming.
Bone densitometry is a non-invasive diagnostic technique which involves use of bone densitometers for quantitative measurement of bone mass or density.
Thermo also offers densitometers using gamma technology for a non-destructive, non-invasive approach to sand warning allowing preservation of downstream equipment.
Densitometers can measure either diazo phototool films (with selective filtration), silver phototool films or both.
Vivitek will supply its own brands, as well as other name-brands, of key materials such as fountain solutions, blankets, press washes, web conditioners, densitometers, personal safety equipment and a host of other supplies.
Contract notice: Delivery discs, kits, tests and holding the camera, dispensers and densitometers for determination (r) diagnostic (dzp-lk-271-117/2014).
Chandler is a well-established provider of pipeline instrumentation with a full line of natural gas chromatographs, dew point testers, gas gravitometers, and liquid densitometers.
personal protective equipment, pH meters, densitometers and spectrophotometers.