Gas sensor

Details Gas sensor Gas sensor

2007-08-02

2009-10-27

Williams, Hezron (Department: 2856)

Measuring and testing

Gas analysis

Detector detail

C073S023310, C073S024050, C204S426000, C204S428000

Reexamination Certificate

active

07607340

ABSTRACT:
In a protector (100) for protecting a detecting portion (11) of a sensor element (10) of a gas sensor (1), the opening area of individual inner introduction holes (130) and (140) formed in an inner protector (120) is 3.5 mm2or less. In this manner, the amount and size of water droplets able to pass through the inner introduction holes (130) and (140) and to adhere to the sensor element (10) is restricted. In order to ensure good gas replaceability between the interior and the exterior of the inner protector (120) so as to attain quick gas response, the total opening area of the inner introduction holes (130) and (140) is 10 mm2or more.

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patent: 2003/0121782 (2003-07-01), Atsumi et al.
patent: 2005/0241937 (2005-11-01), Shichida et al.

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