公开(公告)号：US20060151338A1

公开(公告)日：2006-07-13

申请号：US11034125

申请日：2005-01-12

Applicant: Da Wang ,  Walter Symons ,  Robert Farhat ,  Joachim Kupe ,  David Ehle ,  Alfred Webster ,  Paul Kikuchi

Inventor： Da Wang ,  Walter Symons ,  Robert Farhat ,  Joachim Kupe ,  David Ehle ,  Alfred Webster ,  Paul Kikuchi

IPC: G01F1/64 ,  G01N27/26

CPC classification number: G01N27/4071 ,  G01N27/4075

Abstract: A gas sensor system includes an ammonia-sensing cell for generating a signal upon exposure to an unknown gas comprising ammonia, an A/F cell for generating a signal upon exposure to hydrocarbons in the gas, a heater in thermal communication with the cells and a housing in which the cells and the heater are mounted. The housing permits an unknown gas to flow therethrough for contact with the cells, and there is a sensor control circuit in communication with the cells. The sensor control circuit is configured to utilize the signals from the cells to generate an ammonia concentration signal indicating the concentration of ammonia in the unknown gas. Ammonia may be sensed in an unknown gas by heating such cells to selected working temperatures, exposing them to an unknown gas, obtaining signals from the cells, and using the cell signals to determine the ammonia content.

Abstract translation: 气体传感器系统包括用于在暴露于包含氨的未知气体时产生信号的氨感测单元，用于在暴露于气体中的烃时产生信号的A / F单元，与单元热连通的加热器 安装电池和加热器的外壳。 壳体允许未知气体流过其中以与电池接触，并且存在与电池连通的传感器控制电路。 传感器控制电路被配置为利用来自单元的信号产生指示未知气体中的氨浓度的氨浓度信号。 可以通过将这样的细胞加热至选定的工作温度，将其暴露于未知气体，从细胞获得信号，并使用细胞信号来确定氨含量，可以在未知气体中感测氨。