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载荷传感器是飞机结构强度试验中必不可少的测力器件。目前,国内外主要用粘贴在弹性体上的应变片作为变换元件。一般用电阻变应片,也有用半导体应变片的。电阻应变片传感器在实验室标定时可达到较高的精度,但在结构强度试验现埸使用时,由于试件的重量、
Load cell is an indispensable force testing device in aircraft structure strength test. At present, the strain gauge attached to the elastomer is mainly used as the transformation element at home and abroad. General resistance with variable resistance film, but also useful semiconductor strain gauge. Resistance strain gauge sensor in the laboratory calibration can achieve higher accuracy, but in the structural strength test is used, due to the weight of the specimen,