Development of ultra-high precision accelerometer for gravity tensor measurement
| Project/Area Number |
22360378
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Earth system and resources enginnering
|
|---|
| Research Institution | Shizuoka University |
|---|
Principal Investigator |
KASAHARA Junzo 静岡大学, 防災総合センター, 客員教授 (70012953)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
KONDO Hayato 東京海洋大学, 海洋工学部, 准教授 (40361802)
SHIMIZU Etsuro 東京海洋大学, 海洋工学部, 准教授 (60313384)
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2010: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
|
|---|
| Keywords | 重力テンソル / 加速度計 / 密度 / フォースバランス / レーザー干渉計 / 密度構造 / エトベス / 超高精度計測 / 資源探査 / レーザー干渉 |
|---|
| Research Abstract |
We have developed a prototype gravity tensor instrument. The displacements applied by acceleration to the proof mass are measured by laser interferometer. We tested this prototype instrument in the tunnel of Matsushiro Earthquake observatory of JMA. Though the measurement is influenced by the air pressure, room temperature and the temperature of laser driver circuit, two units show similar variation with time during one month. The measurements of two units are consistent within 10nm, 3 μgal and 30 Etoves.
|
Report
(4 results)
Research Products
(7 results)
