With the wide application of high-performance engineering plastics such as PEEK, PPS, PEI, and LCP, the demand for ultra-high-temperature resistant thermocouples is increasing. These materials often require processing temperatures above 350°C, and even up to 400°C, which poses severe challenges to thermocouple materials and structures.
Future high-temperature thermocouples will use more stable alloy materials to reduce drift and oxidation at extreme temperatures. New insulation materials will provide better thermal conductivity and durability. The structure will be more miniaturized and sealed to adapt to high-temperature and high-pressure flow channels.
At the same time, these sensors will have higher accuracy and faster response to match the narrow processing windows of advanced materials. Combined with digital technology, they will achieve real-time health monitoring and self-compensation. The development of high-temperature thermocouples will directly support the application of next-generation engineering plastics in automotive, aerospace, and medical fields.
