公开(公告)号：WO1998013686A1

公开(公告)日：1998-04-02

申请号：PCT/US1997016001

申请日：1997-09-10

Applicant: ROSEMOUNT ANALYTICAL INC.

Inventor： ROSEMOUNT ANALYTICAL INC. ,  O'NEILL, Michael, G. ,  MUZZY, Joel, P. ,  ESTVANDER, Michael, T.

IPC: G01N27/406

CPC classification number: G01N27/4065 ,  G01N27/407

Abstract: A solid electrolyte gas analyzer (40) includes an analyzer circuit (50) housed in an electronics housing (48) and a probe housing (42) for immersion in the gas of interest. The electronics housing (48) mounts directly to the probe housing (42), preferably through a standoff (52). The analyzer circuit (50) is powered by an AC line input and includes a switching power supply (84) to convert the AC line input to DC power useable by the analyzer circuit (50). The analyzer circuit (50) also includes a heater circuit (92) controlling a heater (66) in the probe housing (42). The power supply (84) and the heater circuit (92) automatically adjust to different AC line input voltage levels. The switching power supply (84) efficiently supplies DC power to other portions of the analyzer circuit (50) with little heat generation.

Abstract translation: 固体电解质气体分析器（40）包括容纳在电子设备壳体（48）中的分析器电路（50）和用于浸入感兴趣的气体中的探针外壳（42）。 电子设备外壳（48）优选通过支座（52）直接安装到探头壳体（42）。 分析器电路（50）由交流线路输入供电，并包括开关电源（84），用于将AC线路输入转换成由分析器电路（50）可用的​​直流电力。 分析器电路（50）还包括控制探头壳体（42）中的加热器（66）的加热器电路（92）。 电源（84）和加热器电路（92）自动调整到不同的交流线路输入电压电平。 开关电源（84）在发热少的情况下，有效地向分析电路（50）的其他部分供给直流电力。

公开(公告)号：WO1998013688A1

公开(公告)日：1998-04-02

申请号：PCT/US1997016002

申请日：1997-09-10

Applicant: ROSEMOUNT ANALYTICAL INC.

Inventor： ROSEMOUNT ANALYTICAL INC. ,  FARBER, Boris, Y. ,  O'NEILL, Michael, G. ,  ESTVANDER, Michael, T. ,  THOMSON, James, W.

IPC: G01N27/417

CPC classification number: G01N27/4065 ,  G01N27/4175

Abstract: A solid electrolyte gas analyzer (40) is equipped with a diagnostic circuit (50) that intermittently measures an impedance of the solid electrolyte measurement cell (60) as an indication that the cell is in need of calibration or replacement. The disgnostic operation is performed on the cell (60) in situ, i.e., while the solid electrolyte cell (60) is exposed to the gas to be measured and heated to a controlled elevated temperature. Preferably the cell impedance is measured at a predetermined frequency by injecting a modulated current through the cell (60) and measuring the resulting voltage drop.

Abstract translation: 固体电解质气体分析仪（40）装备有诊断电路（50），其间歇地测量固体电解质测量电池（60）的阻抗，作为电池需要校准或更换的指示。 即将固体电解质电池（60）暴露于被测量的气体并加热到受控的升高温度时，对电池（60）进行预处理操作。 优选地，通过注入调制电流通过电池（60）并测量所得到的电压降，以预定频率测量电池阻抗。