公开(公告)号：US3795810A

公开(公告)日：1974-03-05

申请号：US3795810D

申请日：1972-11-27

Applicant: FRAM CORP

Inventor： CONLEY J ,  BELDEN D ,  TERHUNE R

IPC: G01N33/18 ,  G01N21/26

CPC classification number: G01N33/1833

Abstract: Apparatus for measuring hydrocarbon pollutant concentration in water featuring a sample chamber through which a liquid sample flows continuously, a source of infra-red light having a frequency at half peak intensity no less than 7,500 Angstroms passing through windows in the sample tube, and a photodetector arranged to receive the light transmitted through the sample and to provide an output signal dependent upon the intensity of the received light.

Abstract translation: 用于测量水中碳氢化合物污染物浓度的设备，其特征在于液体样品通过其连续流过的样品室，具有通过样品管中的窗口不小于7500埃的半峰强度的频率的红外光源和光电检测器 布置成接收通过样品传输的光，并提供取决于接收光强度的输出信号。