Platform for a hydrocarbon exhaust gas sensor utilizing a pumping cell and a conductometric sensor.

Platform for a hydrocarbon exhaust gas sensor utilizing a pumping cell and a conductometric sensor.
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DOI:
10.3390/s90907498
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发表时间:
2009
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
通讯作者:
Moos R
Moos R
中科院分区:
其他
文献类型:
--
作者:
Biskupski D;Geupel A;Wiesner K;Fleischer M;Moos R

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通常,高温操作的气体传感器对氧气交叉敏感和/或它们不能在缺氧(富氧)气氛中操作。例如,某些金属氧化物如Ga 2 O3或掺杂的SrTiO 3是用于在汽车废气的粗糙大气中进行电导式烃检测的优良材料,但必须优选在恒定的氧浓度下操作。我们提出了一个模块化的传感器平台,它结合了电导两个传感器的设置与电化学泵浦电池由YSZ建立一个恒定的氧浓度的电导传感器膜的周围环境。本文介绍了该平台,将双传感器结构集成到该设计中,并对其传感性能进行了表征。这样的平台也可以用于其他传感器原理。
Very often, high-temperature operated gas sensors are cross-sensitive to oxygen and/or they cannot be operated in oxygen-deficient (rich) atmospheres. For instance, some metal oxides like Ga2O3 or doped SrTiO3 are excellent materials for conductometric hydrocarbon detection in the rough atmosphere of automotive exhausts, but have to be operated preferably at a constant oxygen concentration. We propose a modular sensor platform that combines a conductometric two-sensor-setup with an electrochemical pumping cell made of YSZ to establish a constant oxygen concentration in the ambient of the conductometric sensor film. In this paper, the platform is introduced, the two-sensor-setup is integrated into this new design, and sensing performance is characterized. Such a platform can be used for other sensor principles as well.
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发表时间: 2004-09-29
影响因子: 8.4
作者:
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期刊: Sensors (Basel, Switzerland)
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