公开(公告)号：US20110113855A1

公开(公告)日：2011-05-19

申请号：US12617808

申请日：2009-11-13

Applicant: Michael Edward Badding ,  Aravind Raghavan Rammohan ,  Jianhua Weng

Inventor： Michael Edward Badding ,  Aravind Raghavan Rammohan ,  Jianhua Weng

IPC: G01N29/02

CPC classification number: G01N29/022 ,  G01N33/0037 ,  G01N2291/0215 ,  Y02A50/245

Abstract: Apparatuses and methods for determining the concentration of an analyte gas in a gas stream with a sensor are described. The analyte gas sensor may include a mass-sensitive resonator and a diffusion barrier. The mass-sensitive resonator may be coated with an absorptive material which is reactive with an analyte gas, such as NOx. The diffusion barrier may be positioned to limit a gas flow with the analyte gas towards the absorptive material, and a ratio of the diffusion time of the gas flow through the diffusion barrier to the reaction time of the analyte gas with the absorptive material may be from about 0.1 to about 100.

Abstract translation: 描述了用传感器确定气流中的分析气体的浓度的装置和方法。 分析物气体传感器可以包括质量敏感谐振器和扩散阻挡层。 质感敏感谐振器可以涂覆有与诸如NOx的分析物气体反应的吸收材料。 扩散阻挡层可以定位成将分析气体的气流限制在吸收材料上，并且通过扩散阻挡层的气体流的扩散时间与分析物气体与吸收材料的反应时间之比可以来自 约0.1至约100。