Fuel cell mixture sensor

Details Fuel cell mixture sensor Fuel cell mixture sensor

2005-01-11

2005-01-11

Deb, Anjan K. (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S698000, C324S685000, C073S061430

Reexamination Certificate

active

06842017

ABSTRACT:
A sensor (40) includes a single capacitor (42) that operates in two different modes to obtain capacitance and conductance information when a mixture flows between the electrodes (44, 46) of the capacitor. The inventive sensor is particularly well-suited for making methanol content determinations within a mixture used to provide hydrogen to supply a fuel cell. Two different oscillators (180, 182) are selectively used to obtain the conductance and capacitance information. In a disclosed embodiment, a capacitor includes an outer electrode (44) that is received around an inner electrode (46) such that there is a spacing between the electrodes through which the mixture flows. The mixture acts as a dielectric of the capacitor allowing the conductance and capacitance measurements to be made. The example sensor includes a temperature sensor (76) conveniently supported within the inner electrode (46).

REFERENCES:
patent: 4426616 (1984-01-01), Maier
patent: 4555661 (1985-11-01), Benson et al.
patent: 4915084 (1990-04-01), Gonze
patent: 4945863 (1990-08-01), Schmitz et al.
patent: 4971015 (1990-11-01), Gonze
patent: 5060619 (1991-10-01), Sakurai et al.
patent: 5089703 (1992-02-01), Schoen et al.
patent: 5103184 (1992-04-01), Kapsokavathis et al.
patent: 5119671 (1992-06-01), Kopera
patent: 5134381 (1992-07-01), Schmitz et al.
patent: 5216409 (1993-06-01), Ament et al.
patent: 5230322 (1993-07-01), Curran et al.
patent: 5231358 (1993-07-01), Kapsokavathis et al.
patent: 5255656 (1993-10-01), Rader et al.
patent: 5301542 (1994-04-01), Meitzler et al.
patent: 5361035 (1994-11-01), Meitzler et al.
patent: 5367264 (1994-11-01), Brabetz
patent: 5416425 (1995-05-01), Mouaici
patent: 5503004 (1996-04-01), Agar
patent: 5594163 (1997-01-01), Suzuki
patent: 5612622 (1997-03-01), Goldman et al.
patent: 5717339 (1998-02-01), Murphy et al.
patent: 5945831 (1999-08-01), Sargent et al.
patent: 6103112 (2000-08-01), Sutton et al.
patent: 2 210 459 (1989-06-01), None
PCT International Search Report mailed Mar. 14, 2003.

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