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一、概述传统杠杆式力标准机杠杆比是固定的,其量程内的力级需要使用数十个砝码进行组合,加、卸载均需要交换砝码,所以传统杠杆式力标准机结构复杂、体积庞大、造价较高,而且存在逆向负荷,加、卸荷速度等关键指标均不能满足OIML R60《称重传感器》的要求,因此不能用于C级称重传感器的质检和常规检定。变臂比双杠杆式力标准机突破了传统杠杆式力标准机的缺点,利用伺服油缸自动平衡主杠杆,控制游码
First, an overview of the traditional lever force standard machine leverage ratio is fixed, the force level within its range need to use dozens of weights to be combined, add, unloading are required to exchange weights, so the traditional leveraged force standard machine complex structure, Bulky, high cost, and there are reverse load, plus, unloading speed and other key indicators can not meet the OIML R60 “load cell” requirements, it can not be used for C-class load cell quality inspection and routine verification. Variable arm than the double lever force standard machine broke through the shortcomings of the traditional lever force standard machine, the use of servo cylinders automatically balance the main lever to control the travel code