photometer
/fə(ʊ)ˈtɒmɪtə
/noun
An instrument for measuring the intensity of light.Special test patterns are designed for use with instrumentation such as color analyzers, photometers, waveform monitors, and oscilloscopes....
- When we measure the luminous intensity of a lamp with a photometer, for example, the lamp current and color temperature are quantities of the measurement equation.
- AERONET is a global network of more than 100 sun photometers that measure the amount of sunlight absorbed by aerosols (fine particles in the air) at wavelengths from ultraviolet to infrared.
Derivatives
photometric
/ adjective ...- The Lux is a photometric unit, rather than a radiometric unit, which means that it takes into account the basic physics of energy and radiation, but also includes the physics of the human eye.
- After all, the stars of the best forensic science shows are often the equipment - DNA sequencers, mass spectrometers, photometric fingerprint illuminators, scanning electron microscopes and the like.
- In a related test, the Florida Solar Energy Center also evaluated the influence of different photometric control sensors.
photometrically
- The protein concentrations were measured photometrically, using the extinction coefficients given in Table 1.
- Creatinine concentrations in serum were assayed photometrically with standard test combinations.
- The p-nitrophenol released is proportional to the ALP activity and can be measured photometrically.
photometry
/ noun ...- We have performed side-by-side comparative measurements of solar-UV radiation with spore dosimetry and spectral photometry in several campaigns held at four sites in Japan and Europe.
- Ultraviolet photometry is most commonly used method, but it takes as long as 30 seconds to take one measurement.
- The initial comparison with spectral photometry at Tsukuba Aerological Observatory showed that these two types of the measurement were remarkably concordant in general, but there existed some variability and divergence.
Rhymes
- phenylacetate
- phenylacetic
- phenylacetylene
- phenylalanine
- phenylamide
- phenylamine
- phenylarsonic
- phenyl blue
- phenylbutazone
- phenylene
- phenylene blue
- phenylene brown
- phenylenediamine
- phenylephrine
- phenyl ether
- phenylethylamine
- phenylglycol
- phenylhydrazine
- phenylhydrazone
- phenylic
- phenylic acid
- phenylimide
- phenylketonuria
- phenylketonuric
- phenylmercuric