
(فتومتری، شیدسنجی)
نورسنجی
the scientific measurement of light in terms of its intensity, color, and other properties
Photometry is the science of measuring the intensity of light. It involves determining how much light is emitted, reflected, or transmitted by an object or source. This process is important in various fields, including photography, astronomy, and lighting design, to ensure accurate lighting conditions and quality. Photometry helps in evaluating how bright a light source is and how it will appear in different settings.

(ارتفاع سنج)
فرازیاب
an instrument used to measure and indicate the altitude of an object above a fixed level, typically the Earth's surface

بادسنج
a device used to measure the speed and direction of the wind

آمپر
the unit of electric current, symbolized as "A" in the International System of Units (SI)

(بارومِتر)
فشارسنج هوا
a scientific instrument used to measure air pressure

(عیار)
قیراط
a unit to measure the purity of gold, the purest gold being 24 karats
A karat is a unit of measurement used to denote the purity of gold, with one karat being equal to 1/24th of the whole. Therefore, 24-karat gold is considered to be pure gold. The higher the karat number, the higher the percentage of gold in the item. For example, 18-karat gold contains 75% gold, while 14-karat gold contains 58.3% gold. Karat is also used as a term to describe the weight of gemstones, with one karat equal to 0.2 grams. The term "carat" is sometimes used interchangeably with "karat," but carat is generally used to describe the weight of diamonds and other gemstones, while karat is used to describe the purity of gold.

محیط (هندسه)
the total length of the external boundary of something

فرازسنجی
the measurement of land elevation variations comparing to sea level or a chosen reference point

(هیدرومتری)
آبسنجی
the measurement and analysis of water flow, levels, and properties in natural bodies of water and hydraulic systems

(طیفنمایی)
طیفشناسی
the measurement and analysis of the spectrum of electromagnetic radiation emitted or absorbed by substances

(ولتمتر)
ولتسنج
a device used to measure the electric potential difference between two points in an electrical circuit

(فشارسنج)
مانومتر
a device used to measure the pressure of gases or liquids in a closed system, typically by comparing it to atmospheric pressure

ترموکوپل
a temperature sensor that generates electricity based on heat

(مترولوژی)
اندازهشناسی
the scientific study of measurement, including the development of measurement standards and techniques

کالریسنجی
the scientific measurement of heat exchange in chemical or physical processes

(ثقلسنجی)
گرانشسنجی
the measurement of variations in gravitational fields to understand the Earth's structure and properties

واحد روشنایی
a measure of the brightness of a light source as perceived by the human eye
اطلاعات دستوری:

(تراکمسنجی)
چگالیسنجی
the process of measuring how dense something is by assessing how much light it absorbs or transmits
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