Ni-Cr薄膜换能组件静电响应特性与发火概率预测研究
基金项目:
陕西省重点研发计划项目（2023-YBGY-333），陕西省创新能力支撑计划（2023-CX-PT-30）。
Study on the Electrostatic Response Characteristics and Ignition Probability Prediction of Ni-Cr Thin Film Energy Conversion Components
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摘要:针对电火工品在静电放电影响下可能发生误发火的问题，以Ni-Cr薄膜换能组件为研究对象，提出了一种分析其在人体静电放电下的响应特性，并预测发火概率的方法。首先，介绍了Ni-Cr薄膜换能组件系统架构，并建立了电火工品静电放电等效电路模型；其次，研究了Ni-Cr薄膜换能组件静电放电响应特性，分析了换能组件尺寸和放电电压对薄膜桥区温度的影响规律；最后，构建了Ni-Cr薄膜换能组件在统计特征下的输入条件，确定了换能组件失效判据，进而结合发火感度试验与数理统计方法，实现了在静电放电条件下电火工品发火概率的预测。研究结果表明：预测发火概率与试验值误差不超过5%，验证了本文方法的有效性。
Abstract:Aiming at the problem of the misfiring of electro-explosive devices (EEDs) under the influence of electrostatic discharge(ESD), a method of analyzing the response characteristics of Ni-Cr thin film energy conversion component (ECC) and predicting the ignition probability under ESD was proposed. Firstly, the system architecture of Ni-Cr thin film ECC was introduced, and an equivalent circuit model for EEDs in ESD was established. Secondly, the response characteristics of Ni-Cr thin film ECC under human body model ESD were investigated, the influences of ECC dimensions and discharge voltage on the temperature of thin-film bridge region were analyzed. Finally, input conditions under statistical characteristics of Ni-Cr thin film ECC were constructed, and the failure criterion for the ECC was determined. By combining ignition sensitivity tests with mathematical statistical methods, the prediction of ignition probability under ESD conditions for EEDs was achieved. The study results indicate that the error between the calculated ignition probability and the experimental ignition probability does not exceed 5%, which verifies the effectiveness of the proposed method.
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