Now the market commonly used thermometers are divided into: glass thermometer, bimetallic thermometer, pressure thermometer, solar thermometer, temperature pressure of a body surface, surface thermometer.
Glass thermometer, it is a kind of artificial fire, priming and other process, low cost, measurement accurate, easy to use, without the power of the traditional temperature measurement products, defect is broken after mercury is not easy to handle, widely used in the production and living, with round or triangular rods glass as raw materials, can be divided into full immersion type thermometer draw immersion type two kinds of thermometer.
Bimetallic thermometers are thermal-bimetallic pieces that are twisted into threads as temperature sensing devices and are mounted inside a protective sleeve. One end is fixed, called the fixed end, and the other end is connected to a thin shaft, called the free end. A pointer is mounted on the free end spool. When the temperature changes, the free end of the temperature sensor will rotate accordingly, which will cause the pointer on the thin axis to change the Angle and indicate the corresponding temperature on the dial.
Solar electronic thermometers use solar energy and wired sensors to provide accurate temperature indications. It is displayed at a light level above 100LUX and is continuously displayed when the light level falls, using power from a back-up battery circuit. It has a bright, easy-to-read LCD display.
Pressure thermometers are thermometers that measure temperature based on the relationship between saturated vapor pressure and temperature of evaporated liquid in a closed temperature measuring system.
Temperature pressure the surface of the body can be measured at the same time, and the temperature of the water degrees Celsius and Fahrenheit.
Post time: Nov-06-2019