Chongqing Duchin Instrument has officially launched the S-Type Multipoint Precious Metal Profile Thermocouple series, specifically developed for high-temperature process temperature measurement in diffusion and oxidation furnaces for photovoltaic and semiconductor industries. Designed for full-length temperature profiling inside furnaces, the product integrates proprietary technologies including integrated calibration systems, optimized cold-end structures, sealed terminal packaging and composite metal sheaths, providing reliable full-process temperature data support for silicon wafer production.
As a core temperature measurement component for PV diffusion furnaces, this multipoint thermocouple supports 3-6 simultaneous measurement points, enabling full-coverage temperature detection inside the furnace and significantly improving process testing efficiency. Featuring S-type precious metal wires and a quartz sheath, the product delivers ±1.0℃ measurement accuracy with excellent long-term stability, fast thermal response, strong anti-interference performance, high thermal shock resistance and long service life. It adapts to a wide temperature range of 0~1100℃, with a maximum customizable sheath length of 4000mm to meet the installation requirements of different-sized diffusion furnaces.
Addressing the industry pain point of complex assembly for multipoint thermocouples, Duchin Instrument has effectively solved multi-point combination assembly challenges through optimized internal structural design, while reducing furnace contamination risks and ensuring cleanliness in photovoltaic production processes. Currently, the series has passed multiple performance verifications and can be widely used in high-temperature processes such as diffusion and oxidation of PV silicon wafers, providing high-precision, customized temperature measurement solutions for semiconductor and PV manufacturing enterprises.