影响内式天平线性输出的两个因素

本文从理论上分析了天平各分量间三种干扰的应变模式及两类非调零型读出仪表在其阻抗不同和零点调节时,对内式天平电桥线性输出的影响。指出了在组桥和校准时往往忽视而实际上应注意的事项。

TWO FACTORS EFFECTING OUTPUT LINEARITY OF INTERNAL BALANCE

This paper analyzes theoretically two factors affectingthe output linearity of the strain bridge of internal balance.These fac-tors are three strain patterns of interaction existing between thevarious compoments of balance,and two non-nulling readout instru-ments at the moment of different impedance and zeroing Furthermore,itgives out some notable terms which are usually neglected but must bepractically paid attenfion to at bridge combining and balance calibra-tion.