Measuring and testing – Instrument proving or calibrating – Gas or liquid analyzer
Patent
1998-07-02
1999-10-19
Brock, Michael
Measuring and testing
Instrument proving or calibrating
Gas or liquid analyzer
73 232, 2062131, 206569, 206305, G01D 1800
Patent
active
059692235
ABSTRACT:
A gas sensor 1 has a catheter 3 to which a gas sensor body 4 and a signal guide member 5 for guiding a detection signal of the gas sensor body 4 are attached. The other end of the signal guide member 5 is connected to a connector 6. The gas sensor 1 is airtightly received in the reception body in the state where a connection terminal of the connector 6 is exposed to the outside. The reception body 2 is filled with a mixed gas containing a gas to be measured by a predetermined concentration. At the time of calibration, the connection terminal of the connector 6 is connected to a measurement amplifier while the reception body 2 is not opened and calibration is performed, and at the time of measurement, the reception body 2 is opened and the gas sensor 1 is taken out to perform ordinary measurement.
REFERENCES:
patent: 3824157 (1974-07-01), Macur
patent: 4689308 (1987-08-01), Gerhard
patent: 5346604 (1994-09-01), Van Sin et al.
patent: 5780302 (1998-07-01), Conlon et al.
Makino Tetsuya
Nagai Yuko
Nakamura Michihiro
Sekiguchi Tetsushi
Brock Michael
Nihon Kohden Corporation
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