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.

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]
References in periodicals archive ?
In a shop I worked at many years ago in Massachusetts, I had a press operator that regardless of the length (draw) of the run always stuck close to the densitometer. We had gray bars on our paper and every time you'd turn around, he would be taking a reading and making a correction.
Nuclear or radioactive densitometers (See Figure 1) are the most commonly used instruments to measure the density of ore slurries flowing in pipelines.
With a logical selection of densitometer type and range, correlation of film OD to exposure, measured with a radiometer-of-choice, can be achieved with simultaneous exposure.
Phototooling Densitometers measure both diazo phototool films (with selective filtration) and silver phototool films.
The additional light reflection from the pigment surface versus substrate surface influences the accuracy of the densitometer reading (see Fig.
has received a $2.1 million order from a leading medical distributor for its new FDA approved DexaCare(R) G4 Bone Densitometers. Shipments for the DexaCare(R) G4 will begin immediately and continue through the end of calendar year 2003.
Solutions such as automated and portable hand-held spectrophotometers, densitometers, colorimeters, as well as specialized offerings such as ink formulation products, can be utilized to achieve superior color process control in all environments.
Casadonte takes a more scientific approach to the art of scraping: he uses an optical densitometer to measure the transmission of light through each point on the reed and to construct a contour map consisting of various colors that represent the different thicknesses.
The system integrates an intelligent scanning densitometer, a sensitometer with adjustable exposure and a printer.
The shop should also use a densitometer to compare the imagesetter output against expected values.
Tenders are invited for Supply and installation of densitometer with computer for biochemistry dept in medical college kanpur
X-Rite has announced the availability of a new member of its DensiEye family of portable pressroom reflection densitometers. Designed to meet the needs of press operators, production managers and quality control managers, the new DensiEye 100 provides users with density and gray balance data to ensure the quality, accuracy and stability of their prints.