Definition of photometer in English:

photometer

noun fə(ʊ)ˈtɒmɪtəfoʊˈtɑmədər

An instrument for measuring the intensity of light.
Example sentencesExamples
- 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.
- At least 500 cells from plasmolysed and control cells were compared, using the photometer coupled to the Zeiss Axioplan microscope, which converts fluorescence intensity to exposure time for photomicrography.
- 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.
- Sun photometers measure how difficult it is for sunlight to pass through the Earth's atmosphere as it interacts with pollution particles, which reduce the amount of light and energy reaching the Earth's surface.

Derivatives

photometric

adjective fə(ʊ)tə(ʊ)ˈmɛtrɪkˌfoʊdəˈmɛtrɪk

In a related test, the Florida Solar Energy Center also evaluated the influence of different photometric control sensors.
Example sentencesExamples
- 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 this study, the consequences of finite excitation flash duration are analyzed using computer simulations, and a method for the recovery of phosphorescence decay times from complex photometric signals is presented.
- This cannot be a simple application of the photometric and radiometric test methods used for other conventional light sources, for several reasons.
- 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.

photometrically

adverb

Creatinine concentrations in serum were assayed photometrically with standard test combinations.
Example sentencesExamples
- The p-nitrophenol released is proportional to the ALP activity and can be measured photometrically.
- Chlorophyll concentration was analysed photometrically at 652 nm after Arnon.
- The protein concentrations were measured photometrically, using the extinction coefficients given in Table 1.
- Total tropinone reductase activity was measured photometrically by NADPH consumption with tropinone as substrate.

photometry

noun fə(ʊ)ˈtɒmɪtrifəˈtɑmətri

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.
Example sentencesExamples
- Prior to commencing the experiment flicker photometry was used to adjust the energy of the green and blue-green cues to be approximately isoluminant with the grey frames.
- 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.
- Spectral reflectance properties were measured using flash photometry between 300 and 700 nm.
- Ultraviolet photometry is most commonly used method, but it takes as long as 30 seconds to take one measurement.

Rhymes

accelerometer, anemometer, barometer, gasometer, geometer, manometer, micrometer, milometer, olfactometer, optometer, pedometer, pyrometer, speedometer, swingometer, tachometer, thermometer

Definition of photometer in US English:

photometer

nounfōˈtämədərfoʊˈtɑmədər

An instrument for measuring the intensity of light.
Example sentencesExamples
- 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.
- Sun photometers measure how difficult it is for sunlight to pass through the Earth's atmosphere as it interacts with pollution particles, which reduce the amount of light and energy reaching the Earth's surface.
- 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.
- At least 500 cells from plasmolysed and control cells were compared, using the photometer coupled to the Zeiss Axioplan microscope, which converts fluorescence intensity to exposure time for photomicrography.
- Special test patterns are designed for use with instrumentation such as color analyzers, photometers, waveform monitors, and oscilloscopes.

单词	photometer
释义	Definition of photometer in English: photometer noun fə(ʊ)ˈtɒmɪtəfoʊˈtɑmədər An instrument for measuring the intensity of light. Example sentencesExamples 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. At least 500 cells from plasmolysed and control cells were compared, using the photometer coupled to the Zeiss Axioplan microscope, which converts fluorescence intensity to exposure time for photomicrography. 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. Sun photometers measure how difficult it is for sunlight to pass through the Earth's atmosphere as it interacts with pollution particles, which reduce the amount of light and energy reaching the Earth's surface. Derivatives photometric adjective fə(ʊ)tə(ʊ)ˈmɛtrɪkˌfoʊdəˈmɛtrɪk In a related test, the Florida Solar Energy Center also evaluated the influence of different photometric control sensors. Example sentencesExamples 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 this study, the consequences of finite excitation flash duration are analyzed using computer simulations, and a method for the recovery of phosphorescence decay times from complex photometric signals is presented. This cannot be a simple application of the photometric and radiometric test methods used for other conventional light sources, for several reasons. 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. photometrically adverb Creatinine concentrations in serum were assayed photometrically with standard test combinations. Example sentencesExamples The p-nitrophenol released is proportional to the ALP activity and can be measured photometrically. Chlorophyll concentration was analysed photometrically at 652 nm after Arnon. The protein concentrations were measured photometrically, using the extinction coefficients given in Table 1. Total tropinone reductase activity was measured photometrically by NADPH consumption with tropinone as substrate. photometry noun fə(ʊ)ˈtɒmɪtrifəˈtɑmətri 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. Example sentencesExamples Prior to commencing the experiment flicker photometry was used to adjust the energy of the green and blue-green cues to be approximately isoluminant with the grey frames. 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. Spectral reflectance properties were measured using flash photometry between 300 and 700 nm. Ultraviolet photometry is most commonly used method, but it takes as long as 30 seconds to take one measurement. Rhymes accelerometer, anemometer, barometer, gasometer, geometer, manometer, micrometer, milometer, olfactometer, optometer, pedometer, pyrometer, speedometer, swingometer, tachometer, thermometer Definition of photometer in US English: photometer nounfōˈtämədərfoʊˈtɑmədər An instrument for measuring the intensity of light. Example sentencesExamples 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. Sun photometers measure how difficult it is for sunlight to pass through the Earth's atmosphere as it interacts with pollution particles, which reduce the amount of light and energy reaching the Earth's surface. 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. At least 500 cells from plasmolysed and control cells were compared, using the photometer coupled to the Zeiss Axioplan microscope, which converts fluorescence intensity to exposure time for photomicrography. Special test patterns are designed for use with instrumentation such as color analyzers, photometers, waveform monitors, and oscilloscopes.
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