针对目前国内的空白，利用气浮轴承技术研制了0.1~10 Nm高准确度小量程扭矩标准机。采用杠杆砝码式加载原理，利用气浮轴承减少摩擦对准确度的影响，激光位移测量技术控制杠杆水平位置，钢箔悬挂技术最大程度控制砝码摆动现象。整台设备采用多量程砝码组全自动加载技术、计算机自动精确控制技术等，实现全自动控制，自动完成加载、卸载、数据采集、数据处理等操作。标准机的相对扩展不确定度为1.5×10-4（k=2）。%For domestic small-scale torque standard machine blank, the use of air bearing technology developed 0.1-10 Nm high accuracy small-scale torque standard machine. Using lever and weight loaded principle, the use of air bearings to reduce friction on the accuracy, laser displacement measurement technology to control the horizontal position of the lever, steel foil suspension technology to maximize control of the swing weights phenomenon. The torque standard machine uses weights and multi-range automatic loading technology, computer automatically precise control technology, to achieve automatic control, automatic loading and unloading, data acquisition and processing, and so on. The standard machine relative expanded uncertainty of 1.5×10-4 (k=2).
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