Temperature gauge 5m Capillary Pressure type Thermometer

 A thin tube thermometer is a pneumatic thermometer that uses capillary phenomena to measure temperature. The basic principle is that when the liquid surface area A is less than the capillary radius R, the relationship between the height difference h of the liquid surface and the capillary diameter d and the liquid surface tension T is h=(2Tcos θ)/ ( ρ Gd), where θ Is the contact angle between the liquid and the inner wall of the glass capillary, and g is the acceleration of gravity, ρ Is the liquid density, d is the inner diameter of the glass capillary, and h is the difference in liquid level height.
When the temperature changes, the increase or decrease in internal energy of the liquid leads to a change in the volume of the liquid, which also leads to a change in the height difference of the liquid level. By measuring the change in liquid level height, the temperature change can be obtained, thus completing temperature measurement.

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2.Working Temperature?

3.Pressure range

4.Output signal

5.Electronic connection

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