Title:
METHOD OF DETECTING HYDROGEN CONCENTRATION, AND HYDROGEN DETECTOR
Document Type and Number:
Japanese Patent JP3866236
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce an electric power consumption required for detecting a hydrogen concentration.
SOLUTION: In this hydrogen concentration detecting method for detecting whether a hydrogen concentration is a reference concentration or more or not using a hydrogen detector 1 provided with a detecting element 4 comprising a hydrogen storage alloy storing the reference concentration of hydrogen at a prescribed reference temperature higher than an atmospheric temperature, a micro-heater 2 and a substrate 3 for heating the detecting element 4, and a strain gage 6 for detecting a volume change when the detecting element 4 stores the hydrogen, an operation of the micro-heater 2 is stopped (OFF) usually, and the micro-heater 2 is operated (ON) to heat the detecting element 4 when the strain gage 6 detects the volume change of the detecting element 4 during the operation stop of the micro-heater 2.
Inventors:
Takeaki Shimada
Yoshio Sumiya
Yoshio Sumiya
Application Number:
JP2003340170A
Publication Date:
January 10, 2007
Filing Date:
September 30, 2003
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
G01N19/00; G01N7/04; (IPC1-7): G01N19/00
Domestic Patent References:
| JP2259458A | ||||
| JP63109362A | ||||
| JP3272444A | ||||
| JP9145655A | ||||
| JP2000329737A |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Tadashi Takahashi
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama