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研制稳定的高温热敏电阻是复杂的任务,其解决的难度随着热敏电阻工作温度增高的程度而增长。下面引证供在600～1000℃下工作之用的新型热敏电阻的数据。热敏电阻的结构系统示于图1。敏感元件用直径近于1mm装有铂电极3的半导体小珠2制成。电极3电焊到比较粗的(直径0.4mm)用耐热合金595制成的金属引线4上。由高频瓷制成的双通路的陶瓷管1作为热敏电阻的外壳,它的长度原则上可以在任何所需要的范围内变化。半导体小珠置于管子一端的槽或者孔
The development of stable high-temperature thermistor is a complex task, the difficulty of solving the thermistor as the operating temperature increases and the degree of growth. The following is a quote for the new thermistor data for operation at 600-1000 ° C. The thermistor’s structural system is shown in Figure 1. The sensor is made of semiconductor beads 2 with a platinum electrode 3 of approximately 1 mm in diameter. The electrode 3 was electrode-welded to a relatively thick (0.4 mm in diameter) metal lead 4 made of a heat-resistant alloy 595. The double-pass ceramic tube 1 made of high-frequency porcelain serves as a housing for the thermistor and its length can in principle vary in any desired range. Semiconductor beads are placed in slots or holes in one end of the tube