ქიმიის ტერმინთა განმარტებითი ლექსიკონი

Element of a measuring system that is directly affected by a phenomenon, body, or substance
carrying a quantity to be measured.

Examples: Sensing coil of a platinum resistance thermometer, rotor of a turbine flow meter,
Bourdon tube of a pressure gauge, float of a level-measuring instrument, photocell of a
spectrometer, thermotropic liquid crystal which changes colour as a function of temperature.