Development of a novel microbarograph realized with an optical transducer and precise mechanics

Research Project

Project/Area Number	24740301
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Solid earth and planetary physics
Research Institution	The University of Tokyo
Principal Investigator	TAKAMORI Akiteru 東京大学, 地震研究所, 助教 (00372425)
Project Period (FY)	2012-04-01 – 2015-03-31
Project Status	Completed (Fiscal Year 2014)
Budget Amount *help	¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000) Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000) Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords	微気圧計 / インフラソニック波 / 光ファイバセンサー / インフラサウンド / 重力観測 / ネットワーク観測 / 光ファイバ変位計
Outline of Final Research Achievements	In order to enable studies on infrasonic waves induced by earthquakes, tsunamis and avalanches, as well as to improve corrections to the precise observations of Earth’s gravity and deformations, direct observations of atmospheric pressure with dense microbarographs are becoming crucial in many fields of solid Earth science. The device optimized for such purposes has been developed in this study. The design of the new microbarograph includes a hysteresis-free formed bellow and non-contact optical fiber transducer to achieve required resolution within a reasonable manufacturing cost.

Report

(4 results)