The working principle of the pressure and temperature of a body of related introduction

Pressure and temperature of a body from literal meaning can learn about it, the main function of it has double function, can measure the pressure already, also can be used to measure temperature, and then through the pointer on the dial, can be clear at a glance whether equipment system in the correct temperature and pressure, is currently widely used in the heat pipe network, water supply, gas supply system. Actually, pressure and temperature of a surface is to put the bimetallic thermometer temperature function and the function of the pressure gauge pressure combined on a table. A table has the function of the two tables, but only occupy a space for installation. Then the working principle of pressure temperature of a body surface? It mainly consists of measuring the temperature and pressure of two parts, part of the measuring temperature is composed of double metal heat piece of shaft, etc. When the temperature changes, because the bimetallic strip of the materials of the two different linear expansion coefficient is relatively large, produce different expansion and contraction, leading to a bimetallic strip bending deformation, the amount of deformation of different produce different momentum, momentum transfer drive connection shaft, shaft drive at the other end of the indicating needle, indicating pointer is just on the correct reading, indicate the temperature. Besides part of used to measure temperature, pressure and temperature of a body in another part of that is used to measure the pressure of the part, this part is usually composed of elastic element and movement. Sensitive element within the pressure gauge by table bourdon tube elastic deformation, again by the transformation mechanism of movement in table will stress deformation to a pointer, pointer rotation to display the pressure.