压电冲击传感器方向敏感量化分析研究  

A Quantitative Study on Orientation Effect of Piezoelectric Impact Sensor

作　　者：刘天国 张德[1] 赵宝林[1] 陶逢刚[1] 

机构地区：[1]中国工程物理研究院电子工程研究所传感器与执行器中心,四川绵阳621900

出　　处：《兵工自动化》2016年第2期41-43,47,共4页Ordnance Industry Automation

摘　　要：针对压电引信中的压电冲击传感器输出受到冲击加速度方向的影响,提出一种评价压电冲击传感器方向敏感特性的方法。基于压电引信中压电传感器的工作原理和应用特点,构建多向压电冲击加速度传感器多角度冲击响应输出数学模型,并通过量化分析冲击传感器多角度冲击输出,掌握单向、多向压电传感器的多方向冲击响应规律,得到冲击传感器的最佳冲击方向。仿真结果表明:多向压电冲击传感器方向敏感特性优于单向传感器,方向敏感特性与传感器的各向灵敏度之比有关,该评价方法可为压电引信研制提供理论依据。The output of piezoelectric impact sensors used in piezoelectric fuse is influenced by the shock orientation, a quantitative analysis method of sensors orientation effect is proposed. Based on the working principle of piezoelectric sensors, a mathematical model of piezoelectric impact accelerometer ＇s orientation output is constructed. Using this model, quantitative analysis of orientation effect on impact sensors is studied, and the directional response laws of piezoelectric sensors is obtained, the best impact orientation can be calculated. It＇s shown from the simulation experiment that the multi direction sensors are superior to single direction sensors, and orientation effect is related to the ratio of direction sensitivities, this evaluation method provides a theoretical basis for the development of piezoelectric fuse.

关 键 词：冲击传感器 压电引信 方向敏感 量化分析 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]