公开(公告)号：US20030214653A1

公开(公告)日：2003-11-20

申请号：US10420250

申请日：2003-04-22

Applicant: Hach Company

Inventor： Perry A. Palumbo ,  Paul D. Schlegel ,  Jeffrey M. Huhta ,  Richard P. Kolman

IPC: G01N021/00

CPC classification number: G01N21/51 ,  G01N2201/0642

Abstract: A turbidimeter having an arrangement of internal surfaces, optical surfaces, and optical restrictions to the field of view of both the illumination and the detector means to significantly improve the lower detection limit of the turbidimeter by reducing the detected signal due to stray light.

Abstract translation: 具有内部表面，光学表面和对照明和检测器装置的视野的光学限制的浊度计，通过减少由于杂散光引起的检测信号来显着地提高浊度计的较低检测限。

公开(公告)号：US20010033379A1

公开(公告)日：2001-10-25

申请号：US09777195

申请日：2001-02-02

Applicant: Hach COmpany

Inventor： Jeffrey M. Huhta

IPC: G01J003/46

CPC classification number: G01N21/01 ,  G01N21/15 ,  G01N2021/0392 ,  G01N2021/158

Abstract: An optical gasket system for use in a calorimeter or other instrument which utilizes a light beam and a sample cell or chamber for a liquid to be tested. Each gasket is optically clear and is pliable so as to conform to the surface of the sample cell which is in the path of the light beam. The gaskets prevent moisture from condensing on the surface of the sample cell and interfering with the passage of the light beam through the cell.

Abstract translation: 一种用于量热计或其他仪器的光学垫圈系统，其利用光束和用于待测液体的样品池或室。 每个垫片是光学透明的并且是柔韧的，以便符合在光束路径中的样品池的表面。 垫圈防止水分凝结在样品池的表面上，并干扰光束通过电池的通道。