The characteristics of the thermocouple and thermocouple in situ self inspection technology release time: 2019 - 02 - Number 13 reading: zero

Thermocouple temperature measuring instrument is commonly used in temperature measuring element, is made up of two different components of the conductor when two ends synthesis loop, when the two junction thermocouple temperature is not at the same time, will produce thermal current in the circuit. If the work end of the thermocouple with the reference entity temperature difference, display instrument will indicate the thermocouple thermoelectric potential of the corresponding temperature value. Electric hot thermocouple will grows with the temperature measuring end, it is only with the size of the thermocouple temperature at the ends of the materials and relevant, has nothing to do with the hot electrode length and diameter. The appearance of all kinds of thermocouple is often due to the need to vary, but their basic structure is roughly same, usually by the hot electrode, insulation sleeve to protect the main parts such as pipe and connection box, and display instrument, usually record instrument and electronic regulator. Characteristics of the assembly is simple, easy to change pressure spring type thermal components, good seismic performance of high precision measuring large measurement range ( - 200 ℃ ~ 1300 ℃, under special circumstances - 270 ℃ ~ 2800 ℃) Thermal response time is running high mechanical strength, good compression performance high temperature can reach 2800 degrees of long life of Britain's national physical laboratory ( 不良贷款) With the European space agency ( ESA) The cooperative development can be as high as 2300 degrees Celsius temperature thermocouple in situ self inspection technology. The development in the process of research design includes a in some industrial thermocouple temperature measurement nodes near the tiny point. Although this instrument volume small, Only 14 mm x mm) Can clearly identify the carbon gold metal total state of melting or solidifying, cobalt and gold (carbon About 1324 degrees Celsius) Carbon and gold, platinum, About 1738 degrees Celsius) , ruthenium carbon and gold ( About 1953 degrees Celsius) , iridium carbon and gold ( About 2292 degrees Celsius) 。 For the uncertainty of C type thermocouple has improved significantly. The device can be applied to the European space agency ( ESA) A variety of equipment. The design process can also be applied to the high temperature industrial production process - The operator can reset temperature sensors in situ and tested periodically. The researchers also are in-depth study to explore new fixed point, and to use range extended to more high temperature environment.