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PROTECTORRATTACHED ELECTROCHEMICAL DETECTOR FOR DETERMINING OXYGEN CONTENT IN EXHAUST GAS PARTICULARLY FROM INTERNAL COMBUSTION ENGINE
PROTECTORRATTACHED ELECTROCHEMICAL DETECTOR FOR DETERMINING OXYGEN CONTENT IN EXHAUST GAS PARTICULARLY FROM INTERNAL COMBUSTION ENGINE
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机译：固定接触式电化学检测器测定尤其是内燃发动机排放气体中的氧含量。
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摘要
In an electrochemical measuring sensor for determining the oxygen content in exhaust gases, the part of the sensor 1 which is exposed to the exhaust gases is surrounded by a protective device 12 spaced from the sensor, which device consists of a porous tube of sintered metallic or ceramic material. Suitably, the tube is spaced from the sensor by 0.01 to 20.0 mm and has a wall thickness of not less than 1.5 mm, if of ceramic material, and 1 mm, if of metallic material, the pore size being from 5 to 800 microns. The inner surfaces of the pores may be lined with a catalyst material for accelerating the establishment of gas equilibrium. IMAGE
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