公开(公告)号：EP3161207A4

公开(公告)日：2017-07-12

申请号：EP15811997

申请日：2015-06-24

Applicant: VALMET AUTOMATION OY

Inventor： MÄNTYLÄ MARKKU ,  SUOPAJÄRVI PEKKA ,  TENHUNEN JUSSI ,  PAASO JANNE

IPC: D21F7/00 ,  G01J3/02 ,  G01J3/12 ,  G01J3/26 ,  G01J3/28 ,  G01N21/31 ,  G01N21/3559 ,  G01N21/86 ,  G01N21/89 ,  G01N33/34

CPC classification number: G01N21/3559 ,  D21F7/003 ,  G01J3/108 ,  G01J3/26 ,  G01J3/2803 ,  G01J2003/1213 ,  G01N21/8903 ,  G01N33/346 ,  G01N2021/8663

Abstract: Optical multi-channel measurement unit for a process measurement includes first ends for receiving optical radiation from the optical radiation source, and second ends for outputting the optical radiation for illuminating the at least one object. Optical detectors receive optical radiation from at least one measurement channel via at least one optical filter and convert an intensity of the optical radiation to an electrical signal. A movement mechanism causes, for filtering the wavelengths of the optical radiation propagating between detectors and the optical measurement channels through the optical filters, at least one of the following: movement inside at least one optical filter and movement between the filters and the detectors.

Abstract translation: 用于过程测量的光学多通道测量单元包括用于接收来自光辐射源的光辐射的第一端和用于输出用于照射至少一个物体的光辐射的第二端。 光学检测器经由至少一个光学滤波器从至少一个测量通道接收光辐射，并将光辐射的强度转换为电信号。 为了过滤在检测器和光学测量通道之间传播通过光学过滤器的光辐射的波长，移动机制导致以下至少一个：在至少一个光学滤波器内移动以及在滤波器和检测器之间移动。