JP5409912B2 - 高い機械的品質係数を有する低振動数折り畳み振り子及びそのような折り畳み振り子を用いた地震センサ - Google Patents
高い機械的品質係数を有する低振動数折り畳み振り子及びそのような折り畳み振り子を用いた地震センサ Download PDFInfo
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- 238000012360 testing method Methods 0.000 claims description 27
- 238000006073 displacement reaction Methods 0.000 claims description 12
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- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
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- 238000013461 design Methods 0.000 description 17
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
- G01V1/186—Hydrophones
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P2015/0805—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values being provided with a particular type of spring-mass-system for defining the displacement of a seismic mass due to an external acceleration
- G01P2015/0822—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values being provided with a particular type of spring-mass-system for defining the displacement of a seismic mass due to an external acceleration for defining out-of-plane movement of the mass
- G01P2015/0825—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values being provided with a particular type of spring-mass-system for defining the displacement of a seismic mass due to an external acceleration for defining out-of-plane movement of the mass for one single degree of freedom of movement of the mass
- G01P2015/0828—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values being provided with a particular type of spring-mass-system for defining the displacement of a seismic mass due to an external acceleration for defining out-of-plane movement of the mass for one single degree of freedom of movement of the mass the mass being of the paddle type being suspended at one of its longitudinal ends
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Geophysics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
‐ 単振り子の端部と、それを支持する構造とを接続し、
‐ 単振り子の端部と、振り子を接続するバーの端部を接続し、
‐ 接続バーの他端と、倒立振り子の振動端部を接続し、
‐ 倒立振り子の端部と、折り畳み振り子を支持する構造とを接続する。
‐ 支持体と、
‐ 試験質量と、
‐ 単振り子と、
‐ 倒立振り子とを備えた折り畳み振り子であって、
4つの対応するジョイントシステムによって、単振り子及び倒立振り子の端部の一方は試験質量に接続されていて、他方の端部は支持体に接続されていて、試験質量が支持体に接続されておらず自由に振動し、単振り子に関する各ジョイントシステムが一以上の引張ジョイントを備え、
その折り畳み振り子が、
‐ 倒立振り子に関する各ジョイントシステムが一以上の圧縮ジョイントを備えることを特徴とする折り畳み振り子である。
‐ 試験質量及び支持体を備えた折り畳み振り子と、
‐ 支持体に対する試験質量の見掛けの変位を検出するシステムとを備えた地震センサであって、その折り畳み振り子が、本発明の対象である折り畳み振り子であることを特徴とする地震センサである。
‐ その試験質量上に正確に光ビームを送信する光源と、
‐ その試験質量(PM)と一体のミラーと、
‐ そのミラーによって反射された光を検出するシステムと、
‐ その見掛けの変位を計算するコンピュータデバイスとを備える。
F フレーム(支持体)
G ジョイント
IP 倒立振り子
SP 単振り子
PM 試験質量
Claims (10)
- 支持体(F)と、
試験質量(PM)と、
単振り子(SP)と、
倒立振り子(IP)とを備えた折り畳み振り子であって、
4つの対応するジョイントシステム(G)によって、前記単振り子及び前記倒立振り子の一方の端部が前記試験質量(PM)に接続されていて、他方の端部が前記支持体(F)に接続されていて、前記試験質量が前記支持体(F)に接続されておらず自由に振動し、前記単振り子(SP)に関する各ジョイントシステム(G)が一以上の引張ジョイントを備え、
前記倒立振り子(IP)に関する各ジョイントシステム(G)が一以上の圧縮ジョイントを備えることを特徴とする折り畳み振り子。 - 適切な機械加工物質のモノリシックブロックによって形成されていることを特徴とする請求項1に記載の折り畳み振り子。
- 前記モノリシックブロックが電食によって切断機械加工されていることを特徴とする請求項2に記載の折り畳み振り子。
- 各ジョイントシステム(G)が二つのジョイントを備えることを特徴とする請求項1から3のいずれか一項に記載の折り畳み振り子。
- 前記一以上のジョイントが楕円ジョイントであることを特徴とする請求項1から4のいずれか一項に記載の折り畳み振り子。
- 前記ジョイントシステム(G)が、ε>3.2の離心率及びd>10マイクロメートルの相互距離を有する二つの楕円の除去によって形成された二つのジョイントを備えることを特徴とする請求項4に従属して請求項5に記載の折り畳み振り子。
- 前記試験質量(PM)が、該試験質量の質量を減じるために中心に開口を備えた実質的に平行六面体の形状を有することを特徴とする請求項1から6のいずれか一項に記載の折り畳み振り子。
- 前記単振り子(SP)又は前記倒立振り子(IP)の各場合において前記試験質量(PM)又は前記支持体(F)の向き合う面の間の距離が少なくとも250μmであることを特徴とする請求項2から7のいずれか一項に記載の折り畳み振り子。
- 試験質量(PM)及び支持体(F)を備えた折り畳み振り子と、
前記支持体(F)に対する前記試験質量(PM)の見掛けの変位を検出するシステムとを備えた地震センサであって、
前記折り畳み振り子が請求項1から8のいずれか一項に記載の折り畳み振り子であることを特徴とする地震センサ。 - 前記試験質量(PM)の見掛けの変位を検出するシステムが、光学システムであり、
前記試験質量(PM)上に正確に光ビームを送信する光源と、
前記試験質量(PM)と一体のミラーと、
前記ミラーによって反射された光を検出するデバイスと、
前記見掛けの変位を計算するコンピュータデバイスとを備えることを特徴とする請求項9に記載の地震センサ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITRM2009A000348 | 2009-07-07 | ||
ITRM2009A000348A IT1394612B1 (it) | 2009-07-07 | 2009-07-07 | Pendolo ripiegato a bassa frequenza con elevato fattore di qualita' meccanico, e sensore sismico utilizzante tale pendolo ripiegato. |
PCT/IT2010/000293 WO2011004413A2 (en) | 2009-07-07 | 2010-07-01 | Low frequency folded pendulum with high mechanical quality factor, and seismic sensor utilizing such a folded pendulum |
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JP2012533062A JP2012533062A (ja) | 2012-12-20 |
JP5409912B2 true JP5409912B2 (ja) | 2014-02-05 |
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JP2012519127A Active JP5409912B2 (ja) | 2009-07-07 | 2010-07-01 | 高い機械的品質係数を有する低振動数折り畳み振り子及びそのような折り畳み振り子を用いた地震センサ |
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US (1) | US8950263B2 (ja) |
EP (1) | EP2452169B1 (ja) |
JP (1) | JP5409912B2 (ja) |
CA (1) | CA2763204C (ja) |
ES (1) | ES2464126T3 (ja) |
IT (1) | IT1394612B1 (ja) |
RU (1) | RU2518587C2 (ja) |
SM (1) | SMT201400074B (ja) |
WO (1) | WO2011004413A2 (ja) |
Cited By (1)
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EP4357738A1 (en) | 2022-10-18 | 2024-04-24 | Advanced Scientific Sensors and Systems S.r.l. | Directional sensor for infrasound measurement, and corresponding infrasound emitter |
Families Citing this family (12)
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ITRM20110220A1 (it) | 2011-04-28 | 2012-10-29 | Univ Degli Studi Salerno | Pendolo ripiegato con bassa frequenza di risonanza ed alto fattore di qualità meccanico in configurazione verticale, e sensore sismico verticale utilizzante tale pendolo ripiegato. |
US9329292B2 (en) | 2013-02-28 | 2016-05-03 | Bp Corporation North America Inc. | System and method for preventing cavitation in controlled-frequency marine seismic source arrays |
US9702991B2 (en) | 2013-09-27 | 2017-07-11 | Bp Corporation North America Inc. | System and method for performing seismic surveys with a controlled source using maximum-power sweeps |
US10120086B2 (en) | 2013-10-23 | 2018-11-06 | Bp Corporation North America Inc. | System and method for resonator frequency control by active feedback |
BR112015030006B1 (pt) | 2014-01-21 | 2022-10-04 | Bp Corporation North America, Inc | Controle operacional em uma fonte sísmica |
MX352757B (es) | 2014-02-19 | 2017-12-07 | Bp Corp North America Inc | Fuente sísmica compacta para la adquisición sísmica de zumbido de baja frecuencia. |
US10345104B2 (en) | 2014-08-06 | 2019-07-09 | UNIVERSITÀ{grave over ( )}DEGLI STUDI DI SALERNO | Method for the measurement of angular and/or linear displacements utilizing one or more folded pendula |
CN107092038B (zh) * | 2017-06-19 | 2019-02-01 | 华中科技大学 | 一种mems重力仪 |
RU2658788C1 (ru) * | 2017-07-17 | 2018-06-22 | Олег Васильевич Киреенко | Способ и устройство для демонстрации и исследования движения ансамбля математических маятников при продольных колебаниях его подвеса |
CN107505662B (zh) * | 2017-09-25 | 2019-08-30 | 华中科技大学 | 一种三轴mems重力仪 |
IT201800007873A1 (it) | 2018-08-06 | 2020-02-06 | Università degli Studi di Salerno | Metodo per la lavorazione di lamine e giunti elastici sottili, in particolare per la realizzazione di oscillatori meccanici monolitici |
IT202100014417A1 (it) | 2021-06-03 | 2022-12-03 | Advanced Scient Sensors And Systems S R L | Parallelogramma e pendolo ripiegato di Watt multistadio a larga banda in bassa frequenza, e relativo sensore di posizione, velocità ed accelerazione |
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2009
- 2009-07-07 IT ITRM2009A000348A patent/IT1394612B1/it active
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- 2010-07-01 WO PCT/IT2010/000293 patent/WO2011004413A2/en active Application Filing
- 2010-07-01 US US13/261,040 patent/US8950263B2/en active Active
- 2010-07-01 JP JP2012519127A patent/JP5409912B2/ja active Active
- 2010-07-01 RU RU2012104015/28A patent/RU2518587C2/ru active
- 2010-07-01 CA CA2763204A patent/CA2763204C/en active Active
- 2010-07-01 ES ES10747313.4T patent/ES2464126T3/es active Active
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP4357738A1 (en) | 2022-10-18 | 2024-04-24 | Advanced Scientific Sensors and Systems S.r.l. | Directional sensor for infrasound measurement, and corresponding infrasound emitter |
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Publication number | Publication date |
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US8950263B2 (en) | 2015-02-10 |
IT1394612B1 (it) | 2012-07-05 |
WO2011004413A3 (en) | 2011-03-24 |
ITRM20090348A1 (it) | 2011-01-08 |
JP2012533062A (ja) | 2012-12-20 |
CA2763204C (en) | 2017-08-22 |
RU2012104015A (ru) | 2013-08-20 |
AU2010269796A1 (en) | 2012-01-19 |
US20120167686A1 (en) | 2012-07-05 |
AU2010269796A8 (en) | 2015-01-29 |
CA2763204A1 (en) | 2011-01-13 |
SMT201400074B (it) | 2014-11-10 |
WO2011004413A2 (en) | 2011-01-13 |
RU2518587C2 (ru) | 2014-06-10 |
EP2452169A2 (en) | 2012-05-16 |
AU2010269796B2 (en) | 2014-10-02 |
ES2464126T3 (es) | 2014-05-30 |
EP2452169B1 (en) | 2014-03-05 |
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