Measuring and testing – Gas analysis – By vibration
Reexamination Certificate
2006-08-01
2006-08-01
Williams, Hezron (Department: 2856)
Measuring and testing
Gas analysis
By vibration
C073S024010, C073S023200, C073S024040, C073S024050, C073S024060, C310S326000, C310S327000, C310S334000, C310S335000, C310S336000, C310S337000
Reexamination Certificate
active
07082810
ABSTRACT:
A gas sensor (10) including a measurement chamber (28) into which a gas GS is flown and a detection element main body (40) facing the measurement chamber (28). The detection element main body (40) includes an element case42,and a protective film (48) is adhered to a bottom surface thereof. An acoustic matching plate (50) and a piezoelectric element (51) of a substantially columnar shape and a tube body (52) provided in a position surrounding the acoustic matching plate50and the piezoelectric element51are housed in the element case (42). A filler is then introduced into the element case (42), whereby the acoustic matching plate (50), the piezoelectric element (51), and the tube body (52) are sealed by a filled layer (99).
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Banno Keigo
Ishida Noboru
Ishikawa Hideki
Morita Takeshi
Otake Katsuya
Jackson André K.
NGK Spark Plug Co. Ltd.
Williams Hezron
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