[16a-2K-1~12] 1.3 Novel technologies and interdisciplinary engineering

[16a-2K-12] Characteristics of hydrogen gas sensor using magnetic properties of metal-hydrogen system and effect of humidity on its sensing properties

〇Satoshi Akamaru¹, Li Jin², Katsuhiko Nishimura², Masanori Hara¹, Takayuki Abe¹, Masao Matsuyama¹ (1.HRC, Univ. of Toyama, 2.Univ. of Toyama)

Keywords:hydrogen sensor,magnetism

Wireless hydrogen sensor using ferromagentic Pd-Co alloy was developed, and the characteristics of the sensor and the effect of humidity on its sensing properties were evaluated. The detection limit of the sensor was less than 0.2vol% of hydrogen concentration in both nitrogen and air as carrier gas. When the moisture was added to air as carrier gas, response to hydrogen became weak.