电阻性换能元电爆特性与最大不熔断电流 特性试验方法研究
基金项目:
国家技术基础项目（JZX7J202311BZ003000）。
Test Method Study of Electrical Explosion Characteristics and Maximum Non-Fusing Current Characteristics of Resistive Transducer Elements
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摘要:针对火工品电阻性换能元作用的可靠性和安全性问题，提出了电阻性换能元电爆特性及最大不熔断电流特性的试验方法，并采用该试验方法进行了桥膜换能元及桥带换能元的相关试验。试验结果表明：桥膜换能元最小爆发电压为20 V，最小爆发电流为1.5 A；桥带换能元最小爆发电压为22 V，最小爆发电流为2.0 A。桥膜换能元的最大不熔断电流为1.6 A，经历1.7 ~ 1.9 A的5 min不熔断电流试验后，换能元电阻显著减小；而桥带换能元的最大不熔断电流为1.2 A，在相同条件下未观察到电阻减小现象。
Abstract:According the reliability and safety issues of the resistive transducer elements in initiating explosive devices, a test method for the electrical explosion characteristics and the maximum non-fusing current characteristics of resistive transducer elements has been proposed, and the relative tests for bridge film transducer and bridge strip transducer were carried out by the test method. The test results show that the bridge film transducer has a minimum burst voltage of 20 V and a minimum burst current of 1.5 A; the bridge strip transducer has a minimum burst voltage of 22 V and a minimum burst current of 2.0 A. The maximum non-fusing current for the bridge film transducer is 1.6 A, and after undergoing a 5 minute non-fusing current test at 1.7 A to 1.9 A, the transducer resistance is significantly decreased ; while the bridge strip transducer has a maximum non-fusing current of 1.2 A, and no significant resistance decrease is observed under the same conditions.
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