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专利名称：ENVIRONMENT DIFFERENCE DETECTOR发明人：YAMANAKA, KAZUSHI,NAKASO,
NORITAKA,AKAO, SHINGO,SIM, DONG,YOUN,SATOH, ICHITARO,MIYAGISHI,TETSUYA
申请号：EP05727675申请日：20050331公开号：EP1739420A4公开日：20110406
摘要：An object of this invention is to provide an environment difference detectorwhich has a simple configuration, which is difficult to fail, which is low in manufacturingcost, and which can measures a desired environment difference quickly and highlyaccurately. The environment difference detector of the present invention comprises anelastic surface wave element equipped with a substrate (12) including a surface having anannular surface acoustic wave circulating path (12a), a surface acoustic wave
exciting/receiving unit (14) exciting a surface acoustic wave along the circular path andreceiving the circulated surface acoustic wave, and a sensitive film (16) disposed on thecircular path to change an elastic nature in accordance with a change in an adjacentenvironment, a speed/intensity measuring unit (22) measuring a circulating speed andintensity of the surface acoustic wave from an electric signal generated by the unit (14)when the unit receives the circulating surface acoustic wave, and an environment
evaluation unit (24) evaluating an environment adjacent to the sensitive film from at leastone of the circulating speed and the intensity measured by the unit (22).
申请人：TOPPAN PRINTING CO., LTD.,YAMANAKA, KAZUSHI,YAMATAKECORPORATION
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