| 摘要 |
PROBLEM TO BE SOLVED: To provide a spherical surface acoustic wave element for odor sensors, which detects a gas molecule, namely an odor source, with high sensitivity, and copes with many kinds of gas response characteristics, and also to provide an odor sensing system. SOLUTION: The spherical surface acoustic wave element for odor sensors has: a spherical base material which has a propagation surface for propagating surface acoustic waves by turning; an electrode that is formed on the propagation surface of the spherical base material and excites the surface acoustic waves onto the propagation surface of the spherical base material; and a sensitive film that is formed on the propagation surface of the spherical base material and adsorbs the gas molecule that becomes the source of odor. The sensitive film includes lipopolymer where lipid and polymers are subjected to covalent bond. COPYRIGHT: (C)2009,JPO&INPIT |
