There is a requirement in the verification routine of the universal length measuring instrument for measuring the rotation of the spindle in the moving range: it should not be greater than 90′′. According to this requirement and the verification method, the adjustable universal length measuring instrument spindle rotation precision inspection tool is self-made, with the level meter. Used together to solve the verification problem. (?) Structure and characteristics: The structure is as shown in the figure, by the stopper 1, the fixed bracket 2, the adjustable reference
Universal length measuring instrument spindle rotation precision inspection tool