Patent ID: 11874248
Assignee: RAE SYSTEMS, INC.
Field: Measurement (Instruments)
Classification: CPC G  B | IPC B  G

Claim 0:
1. A sensor assembly, comprising:
a first sensor cover disposed on a first end of the sensor assembly, the first sensor cover defining a first capillary therethrough;
a second sensor cover disposed on a second end of the sensor assembly, the second sensor cover defining a second capillary therethrough;
a first sensing unit comprising a sensing electrode disposed on the first end of the sensor assembly;
a second sensing unit comprising an auxiliary electrode disposed on the second end of the sensor assembly, wherein each of the sensing electrode and the auxiliary electrode is positioned between the first sensor cover and the second sensor cover; and
a filter, disposed on the second capillary and defined by a material reactive to a target gas, wherein the filter is configured to prevent an inflow of the target gas through the second capillary.