thermometer

[wēn dù biǎo]

Instrument for measuring temperature

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Thermometer^[1] ）It is a method of measuring objects (or spaces) using different principles temperature or temperature gradient Of appliances^[2] 。 Common bimetallic thermometer with pointer clock dial , can measure gas, liquid and steam directly. It is widely used in machinery, shipbuilding, petrochemical, metallurgy, power, light industry and research sectors.

Chinese name: thermometer
Foreign name: Thermometer

Discipline: Atmospheric science
Properties: Instrument or sensor
Alias: Thermometer

catalog

one Working principle of bimetal thermometer
two classification
three purpose
four Scope of use

Working principle of bimetal thermometer

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Structure diagram of bimetal thermometer

use Thermal bimetal A spiral temperature sensing element made of chips is used to measure the temperature. The temperature sensing element is installed in the protective tube. One end is a fixed end, and the other end is a free end. The free end is connected to a thin shaft. The shaft end is equipped with a pointer. When the temperature changes, after the temperature sensing element senses the temperature, its free end rotates around the fixed end and drives the pointer to rotate, so as to display on the dial.^[3]

classification

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Galileo thermometer

Thermometers use a series of physical reactions to measure temperature. Most thermometers are initially calibrated to Constant capacity Of Gas thermometer 。

Mercury thermometer （Mercury-in-glass thermometer）
Alcohol in glass thermometer
Bi metal mechanical thermometer
Galileo thermometer
Infrared thermometer
Liquid Crystal Thermometer
Maximum Minimum thermometer
Invert the thermometer /Reversing thermometer
Silicon bandgap temperature sensor
Six's thermometer
Thermistor thermometer （Thermistor Thermometer）
Thermocouple Thermometer
Rotary Thermometer
Constant volume body thermometer

purpose

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Mercury thermometer

Laboratory thermometer
Industrial thermometer
Meat thermometer
Medical thermometer
Room thermometer

Scope of use

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Common thermometer (4 sheets)

Measure the temperature of various solid surfaces, gases, liquids, rubber, asphalt, plastics, etc. Widely used in rubber, textile, paper making, shipbuilding, food, steel non-ferrous metals, petroleum products, ceramics, glass and other industries.

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