Sensor incorporating a heater

Details Sensor incorporating a heater Sensor incorporating a heater

1988-04-20

1990-04-10

Niebling, John F.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204428, G01N 2758

Patent

active

049158155

ABSTRACT:
A heater-built-in sensor for detecting a component in a measurement gas, including an electrochemical cell having a solid electrolyte body, and a pair of electrodes formed on the solid electrolyte body, a heater for heating at least a detecting portion of the cell which includes the measuring electrode, and a protective covering device disposed around the detecting portion. The covering device includes a gas-inlet portion for introducing the measurement gas to the measuring electrode, and a thermally insulating portion for preventing dissipation of a heat generated by the heater. The thermally insulating portion, which is separated from the gas-inlet portion, is adapted to surround the detecting portion so as to prevent the measurement gas from flowing to and from any parts of the detecting portion, except a part at which the measuring electrode is located.

REFERENCES:
patent: 4629549 (1986-12-01), Kojima et al.
patent: 4639305 (1987-01-01), Shibata et al.
patent: 4642174 (1987-02-01), Shibata
patent: 4647364 (1987-03-01), Mase et al.

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