The use of mechanical thermometer and solution

With the development of science and technology and the need of modern industrial technology, temperature measurement technology is also continuously improve and improve. According to different requirements, and produce the different need of temperature measuring instrument. Mechanical manufacture field, in particular, the use of the thermometer is very extensive. What is the function of mechanical thermometer? Mechanical thermometer used to measure temperature, temperature compensation and automatic temperature controller as a signal. The most commonly used mechanical thermometer is used to measure the fuel tank top oil temperature, have the effect of monitoring whether the normal operation of the power electronic transformer. What are the mechanical thermometer? Thermometer is the most commonly used machinery: double metal thermometer, pressure type thermometer, electric contact thermometer, thermal resistance sensors such as what are the characteristics of the commonly used mechanical thermometer? Mechanical, also called solid thermometer thermometer, divided into the bimetallic thermometer and thermometer. Bimetallic thermometer can display temperature field, intuitive convenient safe and reliable, long life, environmental protection, core-pulling thermometer will not stop short time machine maintenance or replacement. The axial, radial and 135 & ordm; Type, universal type, such as complete varieties, suitable for all kinds of the needs of the installation. Pressure type thermometer work based on the temperature changes airtight material volume change, to indirectly measure temperature caused by the pressure change. Pressure type thermometer has a simple structure, good resistance to vibration, explosion-proof, yi to send wait for a characteristic, measurable - 50℃～+550℃。 How to choose mechanical thermometer? 1) General scene shows the bimetallic thermometer and pressure thermometer; When there is a remote transmission function or a digital display, thermocouple and thermal resistance temperature sensor should be adopted. At level 3, should use pressure type thermometer, thermocouple and thermal resistance temperature sensor. 2) When the measured medium is corrosive medium, the thermometer should add protective casing, and the casing is adapted to be measured medium corrosion resistant materials. When required by the system with automatic temperature control, electric contact thermometer should be adopted and thermocouple and thermal resistance temperature sensor. 3) The accuracy of the thermometer level should choose according to testing accuracy precision level. And the maximum temperature of the measured medium pulse should not be greater than the maximum range of the thermometer.