As an important temperature sensor in the field of petrochemical,photovoltaic military and other major equipment manufacturing,the armored thermocouple has large consumption,wide use and long life.In this paper,the technological research status of industrial armored thermocouples is reviewed.Taking precious metal and base metal armored thermocouples as an example,the effects of process meth-ods on their service life and temperature measurement performance are analyzed,and the problems exist-ing in the armored thermocouples are discussed.Based on the current development trend,combined with the new single-tube multi-point armored thermocouple technology,the key research directions in the future are expounded,in order to provide a theoretical basis for the high performance/lightweight manu-facturing of armored thermocouple.
维普
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