前言对于汽车的动力系统和发动机控制系统常常需要进行旋转的传动轴的扭矩测量。传统的传动轴扭矩测量技术是采用应变计和集流环。然而这个方法常常只能用于研制中的样机和车辆,同时它也太昂贵,且不能严格满足产品车辆的要求。为了制造稳定的无触点传动轴扭矩传感器,且在费用上也使它能供汽车实用,Ford汽车公司支持了在Southampton大学的研究工作。本文介绍了用于转动轴的,采用了新颖的厚膜电容扭矩敏感元件的这套装置。该电容 Foreword The powertrain and engine control systems of automobiles often require torque measurement of a rotating drive shaft. Traditional drive shaft torque measurement techniques use strain gages and slip rings. However, this method is often used only for prototypes and vehicles under development. At the same time, it is too expensive and can not strictly meet the requirements of the product vehicle. Ford Motor Company backed research at Southampton University in order to make a stable, non-contact torque sensor that would make it cost-effective for cars. This article describes this device for a rotating shaft that incorporates a novel thick film capacitor torque-sensing element. This capacitor