The structure of glass liquid thermometer

Of glass liquid thermometer is the use of thermal fluid ( Mercury, kerosene, alcohol, etc. ) In a transparent glass heat thermal expansion of the bubble and the capillary effect to measure the temperature, it is widely used in industry, agriculture, scientific research departments and so on. Is the most commonly used lateral temperature instrument. Glass liquid thermometer has a simple structure, reading the advantages of intuitive and easy to use, the price is cheap, its temperature range of - From 100 to 60090. 1 bulb/thermal bubble bulbs: located in the glass thermometer, have can change with temperature and heat bilges cold shrink temperature of the liquid container. 2 capillary capillary tube: a capillary glass tube, its welding on thermal bubble, when the temperature changes thermal hydraulic cylinder to move up and down in the wool stoma. In parts of the capillary thermometer scale measuring capillary. 3 temperature gauge temperature scale: temperature numerical notation. 5 safe security bubble chamber: the top of the capillary inner diameter expanding parts. Its effect is when the thermometer is mistakenly used in more than the cap of a certain temperature, can make the thermometer is not damaged, and is easy to rise after interruption of the liquid column.