INDUCTIVE COUPLING PLASMA SPECTRUM ANALYZER

摘要

PROBLEM TO BE SOLVED: To achieve less wear in a rotating mechanism for a diffraction grating of a spectrograph for an inductive coupling plasma spectrum analyzer by sliding a contact mounted at the end of a sine bar in smooth contact with a knife edge. SOLUTION: In the rotating mechanism for the diffraction grating 1 of the spectrograph for the inductive coupling plasma spectrum analyzer, the contact surface of the contact 4 with the sine bar 3 is in the form of contact at a point on a curved face.