Title:
容器中の水素量を判定する方法及び装置
Document Type and Number:
Japanese Patent JP3910585
Kind Code:
B2
Abstract:
An apparatus and method for measuring the quantity of hydrogen in a hydrogen storage vessel of a hydrogen fuel cell using the Pressure, Composition, Temperature (PCT) relationship of the storage media is disclosed. The method of measuring the quantity of hydrogen involves, measuring the temperature 310 of the hydrogen storage media at one or more points on the hydrogen storage vessel 300, measuring the mechanical strain 320 at one or more points on the hydrogen storage vessel, computing the pressure 330 inside the vessel based on the strain measurements, referring to a lookup table 340 or an equation representing the discharge PCT curve for the particular composition of the hydrogen storage media at the measured temperature and computing the hydrogen concentration at the measured pressure. The changes in temperature and pressure during hydrogen absorption-desorption which are characteristic of hydride storage media air is used to measure the hydrogen concentration in the storage vessel and the hydrogen to metal hydride.
Inventors:
Pratt, Stephen Di.
Musa Swami, Shiva Kumar
Kelly, Ronald Jay.
Penis, Robert W.
Musa Swami, Shiva Kumar
Kelly, Ronald Jay.
Penis, Robert W.
Application Number:
JP2003521348A
Publication Date:
April 25, 2007
Filing Date:
June 25, 2002
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
G01N1/00; G01N7/04; H01M8/04
Domestic Patent References:
| JP2198346A | ||||
| JP3118443A | ||||
| JP5249099A | ||||
| JP5256846A | ||||
| JP666787A | ||||
| JP6193480A | ||||
| JP8143301A | ||||
| JP2000206073A |
Foreign References:
| US5882384 |
Attorney, Agent or Firm:
Mamoru Kuwagaki