ログイン
the scientific measurement of light in terms of its intensity, color, and other properties
測光
an instrument used to measure and indicate the altitude of an object above a fixed level, typically the Earth's surface
高度計
the unit of electric current, symbolized as "A" in the International System of Units (SI)
アンペア
the measurement of land elevation variations comparing to sea level or a chosen reference point
ヒプソメトリー
the measurement and analysis of water flow, levels, and properties in natural bodies of water and hydraulic systems
比重測定
the measurement and analysis of the spectrum of electromagnetic radiation emitted or absorbed by substances
分光分析
a device used to measure the electric potential difference between two points in an electrical circuit
電圧計
a device used to measure the pressure of gases or liquids in a closed system, typically by comparing it to atmospheric pressure
マノメーター
the scientific study of measurement, including the development of measurement standards and techniques
計測学
the scientific measurement of heat exchange in chemical or physical processes
熱量測定
the measurement of variations in gravitational fields to understand the Earth's structure and properties
重量測定
a measure of the brightness of a light source as perceived by the human eye
輝度単位
