Hydrogen storage measuring device and hydrogen storage device equipped with the same

摘要

PURPOSE:To enhance the measuring accuracy of a hydrogen storage amound and to enhance the reliability of a measured value. CONSTITUTION:A storage part 16A, for measurement, which stores hydrogen storage alloy particles 23, for measurement, whose physical property, hydrogen storage discharge characteristic and volume-expansion characteristic are the same as those of hydrogen-storage alloy particles 2 for fuel is installed inside a hydrogen storage alloy storage tank 1 via a sintered filter 16. The volume expansion of the hydrogen storage alloy particles 23 for measurement is elastically supported by a rubber-covered optical fiber part 22. Refracted light from the rubber-covered optical fiber part 22 due to incident light is detected as a change in the output voltage of a photo-electric conversion element 26. Based on it, the hydrogen storage amount of the hydrogen storage alloy particles 23 for measurement is computed, and the hydrogen storage amount of the hydrogen storage alloy particles 2 for fuel is computed. Thereby, a hydrogenstorage amount inside the hydrogen storage alloy storage tank 1 is measured.