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APPARATUS FOR MEASURING AMMONIA CONCENTRATION, SYSTEM FOR MEASURING AMMONIA CONCENTRATION, SYSTEM FOR TREATING EXHAUST GAS, AND METHOD FOR MEASURING AMMONIA CONCENTRATION
APPARATUS FOR MEASURING AMMONIA CONCENTRATION, SYSTEM FOR MEASURING AMMONIA CONCENTRATION, SYSTEM FOR TREATING EXHAUST GAS, AND METHOD FOR MEASURING AMMONIA CONCENTRATION
A apparatus 70 for measuring ammonia concentration includes an electromotive force acquisition section 75 configured to acquire information about an electromotive force EMF of a mixed potential cell 55 while a detection electrode 51 is exposed to a target gas, an oxygen concentration acquisition section 76 configured to acquire information about oxygen concentration pO2 in the target gas, and a control section 72. The control section 72 derives ammonia concentration pNH3 in the target gas from the acquired information about the electromotive force EMF, the acquired information about the oxygen concentration pO2, and the relationship represented by formula (1):; EMF=α loga(pNH3)−β logb(pO2)+B (1);where α, β, and B each represent a constant, and a and b each represent any base (provided that a≠1, a0, b≠1, and b0).
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机译:用于测量氨浓度的设备 70 B>包括电动势获取部 75 B>,该电动势获取部 75 B>被配置为获取关于混合势能单元 55 B>的电动势EMF的信息。在将检测电极 51 B>暴露于目标气体的同时,氧浓度获取部 76 B>被配置为获取与目标气体中的氧浓度p O2 Sub>有关的信息。目标气体和控制部分 72 B>。控制部 72 B>从获取的关于电动势EMF的信息,获取的关于氧浓度p O2 <的信息导出目标气体中的氨浓度p NH3 Sub> / Sub>,以及由公式(1)表示的关系: <?in-line-formulae description =“在线公式” end =“线索”?> EMF I> =αlog a Sub>( p I> NH3 Sub>)-βlog b Sub>(< I> p I> O2 Sub>)+ B I>(1)<?in-line-formulae description =“ In-line Formulae” end =“ tail”?> ;其中α,β和B分别代表一个常数,而a和b分别代表任何底数(前提是a≠1,a> 0,b≠1和b> 0)。
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