JP2013108833A5 - - Google Patents
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- JP2013108833A5 JP2013108833A5 JP2011253736A JP2011253736A JP2013108833A5 JP 2013108833 A5 JP2013108833 A5 JP 2013108833A5 JP 2011253736 A JP2011253736 A JP 2011253736A JP 2011253736 A JP2011253736 A JP 2011253736A JP 2013108833 A5 JP2013108833 A5 JP 2013108833A5
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- light
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- gas cell
- irradiation
- magnetic field
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Claims (6)
直線偏光を含む照射光を前記ガスセルに対して照射する照射部と、
前記照射光の前記ガスセルに対する照射方向に垂直な方向の中から磁場が最も強い方向を検知する検知部と、
前記磁場が最も強い方向と前記直線偏光の電場の振動方向とが合うように、前記照射光を調節する調節部と、
前記ガスセルを通過した前記照射光の偏光面の回転角度を計測する計測部と
を具備することを特徴とする磁場測定装置。 A gas cell with gas atoms sealed inside;
An irradiation unit for irradiating the gas cell with irradiation light including linearly polarized light;
A detection unit for detecting a direction in which the magnetic field is strongest from directions perpendicular to an irradiation direction of the irradiation light with respect to the gas cell ;
An adjusting unit for adjusting the irradiation light so that the direction in which the magnetic field is strongest matches the vibration direction of the electric field of the linearly polarized light;
A magnetic field measurement apparatus comprising: a measurement unit that measures a rotation angle of a polarization plane of the irradiation light that has passed through the gas cell .
ことを特徴とする請求項１に記載の磁場測定装置。 The irradiation unit, the magnetic field measuring apparatus according to claim 1, characterized in that guiding the illumination light to the gas cell by an optical fiber.
測定方向に垂直な方向の中から磁場が最も強い方向を検知する検知部と、
円偏光成分を含むポンプ光を、前記ガスセルに対して、前記測定方向に垂直な方向に沿って照射するポンプ光照射部と、
直線偏光を含むプローブ光を、前記ガスセルに対して、前記測定方向、および前記ポンプ光が照射される方向の両方に垂直な方向に沿って照射するプローブ光照射部と、
前記ガスセルを通過した前記プローブ光の偏光面の回転角度を計測する計測部と、
前記磁場が最も強い方向に沿って前記ポンプ光が照射されるように、前記ポンプ光照射部、前記プローブ光照射部、および前記計測部の各位置を調整する調整部と
を具備することを特徴とする磁場測定装置。 A gas cell with gas atoms sealed inside;
A detection unit that detects the direction in which the magnetic field is the strongest among the directions perpendicular to the measurement direction ;
A pump light irradiation unit configured to irradiate the gas cell with pump light including a circularly polarized light component along a direction perpendicular to the measurement direction;
A probe light irradiation unit that irradiates the gas cell with probe light including linearly polarized light along a direction perpendicular to both the measurement direction and the direction in which the pump light is irradiated;
A measuring unit that measures the rotation angle of the polarization plane of the probe light that has passed through the gas cell ;
An adjustment unit that adjusts each position of the pump light irradiation unit, the probe light irradiation unit, and the measurement unit so that the pump light is irradiated along a direction in which the magnetic field is strongest. Magnetic field measuring device.
前記プローブ光照射部は、前記プローブ光を光ファイバーによって前記ガスセルに導く
ことを特徴とする請求項３に記載の磁場測定装置。 The pump light irradiating unit is guided to the gas cell to the pump light by an optical fiber,
The probe light irradiating unit, the magnetic field measuring apparatus according to claim 3, characterized in that guiding the probe light to the gas cell by an optical fiber.
磁場が最も強い方向を検知方向として検知する検知部と、
直線偏光を含む照射光を、前記ガスセルに対して、前記検知方向に垂直な方向に沿って照射する照射部と、
前記ガスセルを通過した前記照射光の偏光面の回転角度を計測する計測部と
前記検知方向と前記直線偏光の電場の振動方向とが合うように、前記照射光を調節するとともに、前記ガスセル、前記照射部、および前記計測部の位置を調整する調整部と
を具備することを特徴とする磁場測定装置。 A gas cell with gas atoms sealed inside;
A detection unit that detects the direction in which the magnetic field is strongest as the detection direction;
An irradiation unit that irradiates the gas cell with irradiation light including linearly polarized light along a direction perpendicular to the detection direction ;
The measurement unit for measuring the rotation angle of the polarization plane of the irradiation light that has passed through the gas cell, and adjusting the irradiation light so that the detection direction and the vibration direction of the electric field of the linearly polarized light match, the gas cell, An irradiation unit, and an adjustment unit that adjusts the position of the measurement unit.
磁場が最も強い方向を検知方向として検知する検知部と、
円偏光成分を含むポンプ光を、前記ガスセルに対して照射するポンプ光照射部と、
直線偏光を含むプローブ光を、前記ガスセルに対して、前記ポンプ光が照射される方向に垂直な方向に沿って照射するプローブ光照射部と、
前記ガスセルを通過した前記プローブ光の偏光面の回転角度を計測する計測部と、
前記検知方向に沿って前記ポンプ光が照射されるように、前記ポンプ光照射部、前記プローブ光照射部、および前記計測部の各位置を調整する調整部と
を具備することを特徴とする磁場測定装置。 A gas cell with gas atoms sealed inside;
A detection unit that detects the direction in which the magnetic field is strongest as the detection direction;
A pump light irradiation unit that irradiates the gas cell with pump light including a circularly polarized component; and
A probe light irradiation unit configured to irradiate the gas cell with probe light including linearly polarized light along a direction perpendicular to a direction in which the pump light is irradiated;
A measuring unit that measures the rotation angle of the polarization plane of the probe light that has passed through the gas cell ;
A magnetic field comprising: an adjustment unit that adjusts each position of the pump light irradiation unit, the probe light irradiation unit, and the measurement unit so that the pump light is irradiated along the detection direction. measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011253736A JP5849640B2 (en) | 2011-11-21 | 2011-11-21 | Magnetic field measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011253736A JP5849640B2 (en) | 2011-11-21 | 2011-11-21 | Magnetic field measuring device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2013108833A JP2013108833A (en) | 2013-06-06 |
| JP2013108833A5 true JP2013108833A5 (en) | 2014-12-25 |
| JP5849640B2 JP5849640B2 (en) | 2016-01-27 |
Family
ID=48705734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011253736A Active JP5849640B2 (en) | 2011-11-21 | 2011-11-21 | Magnetic field measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5849640B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6459167B2 (en) * | 2013-11-27 | 2019-01-30 | セイコーエプソン株式会社 | Magnetic field measuring apparatus and magnetic field measuring method |
| JP6550925B2 (en) * | 2014-11-12 | 2019-07-31 | セイコーエプソン株式会社 | Magnetic field measuring method and magnetic field measuring apparatus |
| US9964604B2 (en) * | 2014-11-12 | 2018-05-08 | Seiko Epson Corporation | Magnetic field measurement method and magnetic field measurement device for measuring and offsetting original magnetic field |
| US10024931B2 (en) | 2014-12-02 | 2018-07-17 | Seiko Epson Corporation | Magnetic field measurement method and magnetic field measurement apparatus |
| JP6597034B2 (en) * | 2014-12-02 | 2019-10-30 | セイコーエプソン株式会社 | Magnetic field measurement method and magnetic field measurement apparatus |
| US10254356B2 (en) | 2014-12-02 | 2019-04-09 | Seiko Epson Corporation | Magnetic field measurement method and magnetic field measurement apparatus |
| JP6825241B2 (en) | 2016-06-21 | 2021-02-03 | セイコーエプソン株式会社 | Magnetic field measuring device, manufacturing method of magnetic field measuring device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5005256B2 (en) * | 2005-11-28 | 2012-08-22 | 株式会社日立ハイテクノロジーズ | Magnetic field measurement system and optical pumping magnetometer |
| JP5707021B2 (en) * | 2008-09-30 | 2015-04-22 | 株式会社日立ハイテクノロジーズ | Magnetic field measuring device |
| JP5640335B2 (en) * | 2009-06-26 | 2014-12-17 | セイコーエプソン株式会社 | Magnetic sensor |
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2011
- 2011-11-21 JP JP2011253736A patent/JP5849640B2/en active Active
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