Hydrogen sensor and hydrogen density measurement device, hydrogen density measurement mannered

摘要

PROBLEM TO BE SOLVED: To keep a temperature of a hydrogen absorbing material at a constant level by a device and a circuit simple constitution for more accurately measuring the hydrogen concentration.;SOLUTION: This sensor has the hydrogen-absorbing material 2, a thermoelement 3, a driving circuit 4, a temperature sensor 5, a temperature control circuit 6 for keeping the temperature of the hydrogen absorbing material 2 at constant by the thermoelement 3, a means for calculating the calorific value of the hydrogen-absorbing material 2, based on an electrification amount in the drive circuit 4, and a means for calculating a hydrogen absorption amount in the hydrogen-absorbing material 2, based on the calorific value.;COPYRIGHT: (C)2005,JPO&NCIPI