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研究了自动限温加热带的电—热性能,得到的结果表明:主动电阻与温度为双曲线关系,功率与温度成线性关系,二者是相互关联的.这是由于加热带通电工作时具有自动限温能力,而自动限温的能力来自加热带的被动电阻具有很高的正温度系数的(PTC)特性所致.讨论了影响加热带输出功率的因素.
The results show that the active resistance and the temperature are hyperbolic, the power is linear with the temperature, and the two are related to each other, which is due to the fact that there is Automatic temperature limiting capability, while the ability to automatically limit the temperature comes from the passive resistance of the heating zone due to the high positive temperature coefficient (PTC) characteristics. The factors that affect the output power of the heating zone are discussed.