While showing excellent heat resistance at 200 ̊C, it has microbending resistance and dynamic fatigue properties superior to those of conventional heat-resistant optical fiber. Fiber-optic high-temperature sensors are gradually replacing traditional electronic sensors due to their small size, resistance to electromagnetic interference, remote detection, multiplexing, and distributed measurement advantages. The red light of a laser is coupled into the core of an optical fiber in a targeted manner (an LED is usually too weak a source to be used instead). SCHOTT's KL Fiber Optic Light Sources with LED or halogen illumination are widely used in stereo microscopy for a broad range of applications. This fiber shows 80%/m retention of light transmi t tance at lm after 1,000 hours at 150°C. Harsh heat can degrade normal fiber optic cables, causing downtime, data loss, or expensive replacements.
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