JP2013164312A5 - - Google Patents
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- JP2013164312A5 JP2013164312A5 JP2012026987A JP2012026987A JP2013164312A5 JP 2013164312 A5 JP2013164312 A5 JP 2013164312A5 JP 2012026987 A JP2012026987 A JP 2012026987A JP 2012026987 A JP2012026987 A JP 2012026987A JP 2013164312 A5 JP2013164312 A5 JP 2013164312A5
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- JP
- Japan
- Prior art keywords
- light
- magnetic field
- cell
- measuring apparatus
- detection light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001514 detection method Methods 0.000 claims 13
- 239000003365 glass fiber Substances 0.000 claims 6
- 238000005259 measurement Methods 0.000 claims 4
- 230000003287 optical Effects 0.000 claims 2
Claims (9)
前記光源から照射される光を、直線偏光を含む検出光に変換する偏光子と、
前記光源から照射される光の進行方向を曲げて、当該光を前記偏光子に導く光ファイバーと、
直線偏光の偏光面を磁場の強度に応じて回転させる媒体を収容し、前記検出光を透過させるセルと、
前記セルを透過した前記検出光に基づいて、当該セルに於ける磁場の強度を検出する検出器と、
を具備することを特徴とする磁場測定装置。 A light source;
A polarizer that converts light emitted from the light source into detection light including linearly polarized light ;
An optical fiber that bends the traveling direction of light emitted from the light source and guides the light to the polarizer;
A cell that contains a medium that rotates a polarization plane of linearly polarized light according to the strength of the magnetic field, and transmits the detection light;
A detector for detecting the intensity of the magnetic field in the cell based on the detection light transmitted through the cell ;
A magnetic field measuring apparatus comprising:
ことを特徴とする請求項１に記載の磁場測定装置。 The magnetic field measuring apparatus according to claim 1.
を具備することを特徴とする請求項１又は２に記載の磁場測定装置。 The magnetic field measuring apparatus according to claim 1, comprising:
ことを特徴とする請求項１から３のいずれか１項に記載の磁場測定装置。 The magnetic field measuring apparatus according to claim 1, wherein the magnetic field measuring apparatus is a magnetic field measuring apparatus.
前記光源から照射される光を、直線偏光を含む検出光に変換する偏光子と、
直線偏光の偏光面を磁場の強度に応じて回転させる媒体を収容し、前記検出光を透過させるセルと、
前記セルを透過した前記検出光に基づいて、当該セルに於ける磁場の強度を検出する検出器と、
前記セルを透過した前記検出光の進行方向を曲げて、当該検出光を前記検出器に導く光ファイバーと、
を具備することを特徴とする磁場測定装置。 A light source;
A polarizer that converts light emitted from the light source into detection light including linearly polarized light ;
A cell that contains a medium that rotates a polarization plane of linearly polarized light according to the strength of the magnetic field, and transmits the detection light;
A detector for detecting the intensity of the magnetic field in the cell based on the detection light transmitted through the cell;
An optical fiber that bends the traveling direction of the detection light transmitted through the cell and guides the detection light to the detector ;
A magnetic field measuring apparatus comprising:
前記光源から照射される光を、直線偏光を含む検出光に変換する偏光子と、
直線偏光の偏光面を磁場の強度に応じて回転させる媒体を収容し、前記検出光を透過させるセルと、
前記セルを透過した前記検出光に基づいて、当該セルに於ける磁場の強度を検出する検出器と、
前記偏光子によって生成された前記検出光の進行方向を曲げて、当該検出光を前記セルに導く光ファイバーと、
を具備することを特徴とする磁場測定装置。 A light source;
A polarizer that converts light emitted from the light source into detection light including linearly polarized light ;
A cell that contains a medium that rotates a polarization plane of linearly polarized light according to the strength of the magnetic field, and transmits the detection light;
A detector for detecting the intensity of the magnetic field in the cell based on the detection light transmitted through the cell;
An optical fiber that bends the traveling direction of the detection light generated by the polarizer and guides the detection light to the cell ;
A magnetic field measuring apparatus comprising:
ことを特徴とする請求項５又は６に記載の磁場測定装置。 The magnetic field measurement apparatus according to claim 5, wherein the light source and the detector are arranged at positions deviating from a straight line connecting the measurement target region and the cell .
を具備することを特徴とする請求項５から７のいずれか１項に記載の磁場測定装置。 The magnetic field measuring apparatus according to any one of claims 5 to 7 , further comprising an optical mechanism that emits light with a diameter of light incident from the optical fiber changed.
ことを特徴とする請求項５から８のいずれか１項に記載の磁場測定装置。 The magnetic field measuring apparatus according to any one of claims 5 to 8, wherein the optical fiber has a polarization maintaining characteristic that outputs while maintaining a polarization state of incident light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012026987A JP6024114B2 (en) | 2012-02-10 | 2012-02-10 | Magnetic field measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012026987A JP6024114B2 (en) | 2012-02-10 | 2012-02-10 | Magnetic field measuring device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2013164312A JP2013164312A (en) | 2013-08-22 |
| JP2013164312A5 true JP2013164312A5 (en) | 2015-04-02 |
| JP6024114B2 JP6024114B2 (en) | 2016-11-09 |
Family
ID=49175742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012026987A Expired - Fee Related JP6024114B2 (en) | 2012-02-10 | 2012-02-10 | Magnetic field measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6024114B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015143669A (en) | 2014-01-31 | 2015-08-06 | セイコーエプソン株式会社 | Magnetic field measuring device |
| CN113721171B (en) * | 2021-07-27 | 2024-06-04 | 北京量子信息科学研究院 | Magnetic gradient system and detection method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60244865A (en) * | 1984-05-21 | 1985-12-04 | Meidensha Electric Mfg Co Ltd | Detecting device for electric field and magnetic field |
| JPH06100619B2 (en) * | 1985-12-24 | 1994-12-12 | 松下電器産業株式会社 | Optical fiber sensor |
| JPH0668508B2 (en) * | 1988-03-03 | 1994-08-31 | 日本碍子株式会社 | Photocurrent and magnetic field measurement method and device |
| JP2001228230A (en) * | 2000-02-14 | 2001-08-24 | Shimadzu Corp | Magnetic sensor |
-
2012
- 2012-02-10 JP JP2012026987A patent/JP6024114B2/en not_active Expired - Fee Related
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