公开(公告)号：US20160018261A1

公开(公告)日：2016-01-21

申请号：US14732170

申请日：2015-06-05

Applicant: TECAN Trading AG

Inventor： Lutz NIGGL ,  Andreas STEINBACHER

IPC: G01J3/18 ,  G01N21/64 ,  G01N21/25 ,  G01J3/06

CPC classification number: G01J3/18 ,  G01J3/06 ,  G01J2003/062 ,  G01N21/255 ,  G01N21/64 ,  G01N2201/0635

Abstract: A monochromator has at least one optical grating which is rotatable in relation to incident light of a source of light, a drive unit to rotate the optical grating by a connected drive rod around a longitudinal axis, and a control unit to control the drive unit and thereby the rotation of the optical grating. The drive unit further has a first damping element with at least one electrical conductive surface, and a second damping element which provides at least one magnetic field having a magnetic axis which penetrates the electrical conductive surface. One of the first and second damping elements is fixed to the drive rod and is rotatable along with the drive rod around the longitudinal axis thereof in relation to the other one of the second or first damping element.

Abstract translation: 单色仪具有至少一个相对于光源的入射光可旋转的光栅;驱动单元，用于通过连接的驱动杆围绕纵轴旋转光栅;以及控制单元，用于控制驱动单元和 从而光栅的旋转。 驱动单元还具有带有至少一个导电表面的第一阻尼元件和提供至少一个具有穿过导电表面的磁轴的磁场的第二阻尼元件。 第一和第二阻尼元件中的一个被固定到驱动杆，并且可以与驱动杆一起围绕其纵向轴线相对于第二或第一阻尼元件中的另一个旋转。