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The variety of thermocouple have? What kind of classification method are there?

2020-11-26

JVTIA

186

So far, the research in the world and used a total of more than 300 kinds of thermocouples, and widely used in the production and scientific research of more than 50. It includes the standardization of IEC recommended thermocouple in more than 50 8 kinds, low temperature measurements with thermocouples 10, can be used in oxygen atmosphere of thermocouple three, can be used in a vacuum and inert atmosphere of thermocouple three, can be used in the reducing atmosphere 7 kinds of thermocouples, etc. So many different kinds of thermocouple, so, what kind of classification method of thermocouple are there? （ 1) According to the different electrode materials can be divided into: A. Precious metal thermocouple; B。 Cheap metal thermocouple; C。 Your - A fit cheap metal thermocouple; D。 Refractory metal thermocouple. E. Thermocouple, not of metal. （ 2) According to the different measuring temperature can be divided into: A. High temperature thermocouple ( 1000 - 3000). C; B。 The thermocouple ( 0 - 1000). C; C。 Low temperature thermocouple ( - 100 - 0) C; D。 Ultra-low temperature thermocouple ( - 273 - 100). C。（ 3) According to the different structures can be divided into: A. Ordinary thermocouple; B。 Armoured thermocouple; C。 Thin-film thermocouple; D。 All kinds of special thermocouple. （ 4) According to use can be divided into: A. Standard thermocouple; B。 Industrial thermocouple. （ 5) According to the industrial standardization situation can be divided into: A. Standardization of thermocouple; B。 Not standardized thermocouple.

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