photometer
معنی فارسی
اسباب که با ان نيروياشدت روشنايي را مي سنجند
، روشني سنج ، نورسنج
معنی کامل و مثالها
/fō täm´ǝt ǝr/n.
● شید سنج، نور سنج، فروغ سنج
ریشه و کاربرد
ریشه
From the Greek words 'phōs' meaning 'light' and 'metron' meaning 'measure'.
مثال
- A photometer is commonly used in photography to determine the correct exposure settings.
- Scientists use a photometer to measure the luminosity of stars.
- The photometer indicated a significant difference in the brightness of the two light sources.
ترکیبهای رایج
Photometer readings Photometer measurements Photometer instrument Photometer calibration
تعریف انگلیسی
noun
- measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source
- photographic equipment that measures the intensity of light