針對板材剪切與沖裁加工的特點, 設計了一種應變片式位移傳感器。傳感器可根據(jù)需要
對量程進行調節(jié), 且相對精度不變, 特別適于中小位移的測量。結合數(shù)據(jù)采集系統(tǒng), 在材料試驗機上實現(xiàn)了板材剪切加工和精密沖裁實驗的位移測量。
關鍵詞　剪切　沖裁　位移傳感器　小位移　量程調節(jié)
Abstract 　A displacement sensor of strain foil is designed based on the characteristic of sheet shearing and blanking pro2 cess. The displacement measurement range of the sensor can be adjustable in according with requirement and its relative ac2 curacy is not changed. The displacement measurement can be carried out in shearing and fine blanking processes for different sheet metal by using the sensor together with the data2acquisition system. The experimental devices of sheet shearing are fixed on the material experimental machine. It is suitable to short range of measurement .
Keywords 　Shearing 　Blanking 　Displacement sensor 　Short range displacement 　Adjustment of measuring range