...合材料电阻率的影响1 前言 聚乙烯/炭黑复合材料因具有显著的电阻正温度系数(positive temperature coefficient of resistance, PTC)效应而倍受关注[1]。但这类材料在长期的使用过程中,电性能的稳定性较差。
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... DOI: 摘要: 通过系统研究烧结工艺对Ba0.92Ca0.08TiO3电阻正温度系数(positive temperature coefficient resistance, PTCR)陶瓷的影响, 在晶粒生长过程中分析液相在晶界中的分布.着重研究降温速率对PTCR室温电阻率的影响.
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直流电磁铁是广泛应用的电磁控制元件,PT C元件是具有正温度系数特性的半导体陶瓷热敏电阻。
Direct current electromagnet is extensively used as electromagnet controlling element. PTC element is a ceramic thermistor with positive temperature coefficient.
在非线性电阻消谐方式下,正温度系数(PTC)热敏电阻和三次谐波滤波器可以较好地解决零序电压偏高的问题。
Positive temperature coefficient (PTC) thermistor and triple frequency harmonic filter can reduce zero sequence voltage when a nonlinear resistance is used to prevent ferroresonance.
借此制成一种电阻的温度系数为正、工作温度较高的半导电电缆料。
Thereby a semiconductive material has been developed with positive temperature coefficient of resistivity and with higher operating temperature for cables.
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