photometric
/,foutə'metrik/
Definition
- Adjective:
- Relating to photometry: Of or pertaining to the measurement of light, especially its intensity and other properties.
Usage
- The word photometric is used as a technical adjective, primarily in scientific contexts such as physics, astronomy, and engineering. It describes measurements, data, instruments, or properties related to the quantification of light.
- It is typically placed before a noun it modifies (e.g., photometric data, photometric analysis).
Examples
- Adjective:
- The telescope is equipped with a photometric sensor for precise light measurement.
- Astronomers rely on photometric observations to determine the brightness of stars.
- The study presented a detailed photometric analysis of the LED's output.
Advanced Usage
- "Photometric standard": A reference source of known and stable light output used to calibrate instruments.
- The laboratory uses a photometric standard to ensure the accuracy of all its light meters.
- "Photometric system": A standardized system for measuring and describing the brightness of celestial objects through specific filters.
- The Johnson-Cousins UBVRI is a widely used photometric system in astronomy.
Variants and Related Words
- Photometry (n): The science of the measurement of light, in terms of its perceived brightness to the human eye.
- His research is in the field of photometry.
- Photometer (n): An instrument for measuring the intensity of light.
- She used a photometer to take the readings.
Synonyms
- Radiometric (adj): Related to the measurement of radiant energy (including light). Note: While related, often refers to a broader spectrum of electromagnetic radiation, whereas is specifically tied to light as perceived by the human eye.
Related Phrases and Compounds
- Photometric calibration: The process of adjusting a light-measuring instrument to give accurate readings.
- Photometric calibration is a crucial step before the experiment.
- Photometric parallax: A method in astronomy for estimating the distance to a star by comparing its apparent and intrinsic brightness.
- They estimated the cluster's distance using photometric parallax.
Adjective
-
of or relating to photometry
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