基于静态标定的碰撞假人力传感器国产化技术研究
Research on Localization Technology of Crash Dummy Force Sensors Based on Static Calibration
汽车碰撞假人作为车辆被动安全测试的核心工具，其内部传感器精度直接决定了乘员损伤评估的可靠性。本文围绕国内自主研发的六轴颈部力传感器、四轴胫骨力传感器和单轴大腿力传感器，以美国HUMANETICS公司和瑞士KISTLER公司同类产品为对标对象，系统开展了静态标定实验研究。通过建立基于力加载平台的传感器综合性能评测体系，考察了线性度、迟滞、重复性、串扰及温度漂移等核心指标；实验结果表明，国产传感器在主要性能指标上已接近或达到国际先进水平，综合精度可控制在0.5%FS以内，六轴串扰水平低于5%，满足碰撞测试要求。本文工作为国产碰撞假人传感器的性能验证与工程应用提供了实验依据，也为进一步制定中国汽车碰撞安全测试的自主传感器标准奠定了基础。
Tibia force sensors, and single-axis thigh force sensors, comparing them against similar products from HUMANETICS (USA) and KISTLER (Switzerland). A systematic static calibration experiment was conducted using a force-loading platform-based sensor performance evaluation system to assess key parameters including linearity, hysteresis, repeatability, crosstalk, and temperature drift. Experimental results show that domestic sensors have reached or approached international advanced levels in major performance indicators, with overall accuracy controllable within 0.5% FS and six-axis crosstalk below 5%, meeting requirements for crash testing. This work provides experimental support for validating the performance and engineering application of domestically produced crash test dummy sensors, and lays the foundation for establishing independent sensor standards for automotive crash safety testing in China.
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