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从广义上讲,衡器的工作原理是利用力平衡原理和弹性元件变形的胡克定律。从结构上看,衡器主要的零部件是承重系统(如秤盘)、传力转换系统(如杠杆传力系统)和示值系统(如刻度盘)。按结构原理可将衡器分为机械衡器、电子衡器、机电结合衡器三大类。
Broadly speaking, the working principle of the weighing instrument is to use the principle of force balance and the Hooke’s law of deformation of the elastic element. From a structural point of view, the main components of the weighing system are load-bearing systems (such as scales), force transfer systems (such as lever force transmission system) and the value of the system (such as dial). According to the principle of the structure can be divided into mechanical Weighing Weighing, electronic weighing machines, electromechanical balance Weighing three categories.