JPH0325748A - Method for holding recording disk operated at low temp. - Google Patents
Method for holding recording disk operated at low temp.Info
- Publication number
- JPH0325748A JPH0325748A JP1159560A JP15956089A JPH0325748A JP H0325748 A JPH0325748 A JP H0325748A JP 1159560 A JP1159560 A JP 1159560A JP 15956089 A JP15956089 A JP 15956089A JP H0325748 A JPH0325748 A JP H0325748A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- recording
- superfluid
- holding
- low temp
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims 3
- 230000000694 effects Effects 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims 1
- 238000005339 levitation Methods 0.000 claims 1
- 230000008016 vaporization Effects 0.000 abstract description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract 1
- 230000006837 decompression Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 230000001939 inductive effect Effects 0.000 abstract 1
- 238000009834 vaporization Methods 0.000 abstract 1
- 230000003068 static effect Effects 0.000 description 2
- PBJBVIHLBRYRQC-UHFFFAOYSA-N 1-o-[2-(diethylamino)ethyl] 3-o-ethyl 2-methyl-2-phenylpropanedioate Chemical compound CCN(CC)CCOC(=O)C(C)(C(=O)OCC)C1=CC=CC=C1 PBJBVIHLBRYRQC-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はコンピュータの外部記録装置における記録ディ
スクの保持回転機構に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a holding and rotating mechanism for a recording disk in an external recording device for a computer.
分光研究、第３７巻、第５号（１ ９ ８ ８）Ｐ３８
８に示されたように、フオトホールバーニング効果を用
いた記録装置は、未だ、基礎検討の段階であり、原理の
確認ができた程度であり、具体的な装置の機構について
は論じられていない．〔発明が解決しようとするａ題〕
フォト・ケミカル・ホールバーニング効果は、ＰＨＥＭ
Ａ，ＰＮＮＡなどの材料でａ測される。Spectroscopy Research, Volume 37, No. 5 (1988) P38
As shown in 8, the recording device using the photohole burning effect is still at the stage of basic investigation, and the principle has only been confirmed, and the specific mechanism of the device has not been discussed. ．． [Problem A to be solved by the invention] The photochemical hole burning effect is caused by PHEM
A is measured with materials such as A and PNNA.
この効果を応用して多重記録メモリを作ることができる
。By applying this effect, multiple recording memory can be created.
多重記録を高効率で行うには記録媒体を液体Ｈ ｅ温度
付近の低温に保持する必要があるが、従来は装置として
媒体の保持機構については具体的な提案がなされていな
かった。In order to perform multiplex recording with high efficiency, it is necessary to maintain the recording medium at a low temperature near the liquid He temperature, but no concrete proposal has been made regarding a mechanism for holding the medium as an apparatus.
本発明の目的は、低温で回転するディスクを安定に保持
する機構を提供することにある。An object of the present invention is to provide a mechanism for stably holding a disk rotating at low temperatures.
上記目的を達成するために、本発明は回転するディスク
を超流動Ｈｅ中に保持したものである。In order to achieve the above object, the present invention maintains a rotating disk in superfluid He.
さらに、回転するディスクを液体Ｈａ中に浮かせるため
に、超伝導物質をディスクの一部に用い、マイナス効果
によって浮上させるものである。Furthermore, in order to make the rotating disk float in liquid Ha, a superconducting material is used in a part of the disk, and the disk is levitated by a negative effect.
さらに、ディスクを回転させるために、ディスク端部の
二ケ所以上に磁極を設け、外部から磁界で順次誘導する
ことによって回転させるものである。Furthermore, in order to rotate the disk, magnetic poles are provided at two or more locations on the edge of the disk, and the disk is rotated by being sequentially guided by a magnetic field from the outside.
液体Ｈ ｅは、ポンプ等により減圧して気化させること
により、容易に温度を２．２ｋ以下にして、超流動状態
にすることができる。By reducing the pressure and vaporizing the liquid He using a pump or the like, the temperature can be easily lowered to 2.2 K or less, and the liquid He can be brought into a superfluid state.
超流動Ｈｅは粘性を持たないため、ディスクの回転を阻
害せず熱を発生しにくい。この超流動Ｈｅ中に記録ディ
スクを浮遊状態で保持し，回転させることによって、ホ
ールバーニング記録用ディスクを一定の低温に安定に保
ちつつ高速にアクセスすることが可能となる。Since superfluid He has no viscosity, it does not inhibit the rotation of the disk and does not easily generate heat. By holding the recording disk in a floating state in this superfluid He and rotating it, it becomes possible to access the hole-burning recording disk at high speed while stably maintaining it at a constant low temperature.
以下．本発明の一実施例を第１図により説明する。第１
図は、液体Ｈｅ容器とその中の記録ディスク、及び、Ｈ
ｅ容器外部のディスク保持／回転用磁石を記したもの
である。Ｈ ｅ容器１の上部はデータアクセス光を通す
ように透明であり、下部は非磁性の材料で構或される。below. An embodiment of the present invention will be explained with reference to FIG. 1st
The figure shows a liquid He container, a recording disk therein, and a liquid He container.
e This shows the disk holding/rotating magnet outside the container. The upper part of the He container 1 is transparent to allow data access light to pass through, and the lower part is made of non-magnetic material.
（場合によっては、更にこの容器を液体窒素中に保持す
ることが断熱上有効である。）ディスクは、磁石８によ
る磁束をディスクに付された超伝導材料６がマイナス効
果ではじくことにより、Ｈｅ中に浮上する。ディスク端
部の二ケ所以上に付した静磁石５を，同じく二ケ所以上
に設置した電磁石７を、順次、用いて誘導することによ
り、ディスクを回転させることができる。この構造で、
Ｈｅを超流動状態に保つことによってディスクとＨｅの
間の磨擦を除くことができ、熱の発生を防いでディスク
を安定に低温で保持できる．
又，この構或を用いると、停電等によるシステムダウン
時には、常流動転移したＨｓによってディスクの回転を
徐々に減速させることとなり、ディスク破損の最悪事態
をさけたフエイル・セーフ機構として動作することがで
きる。(In some cases, it is effective for heat insulation to further hold this container in liquid nitrogen.) The disk is heated by He surface inside. The disk can be rotated by sequentially guiding static magnets 5 attached to two or more locations on the edge of the disk and electromagnets 7 similarly placed at two or more locations. With this structure,
By keeping He in a superfluid state, friction between the disk and He can be eliminated, heat generation can be prevented, and the disk can be stably maintained at a low temperature. Furthermore, if this structure is used, when the system goes down due to a power outage, etc., the rotation of the disk will be gradually decelerated by the normally flowing Hs, and it will operate as a fail-safe mechanism to avoid the worst case of disk damage. can.
第１図では、ディスクの浮上に、下方からのみ静磁界を
かけたが、上方からも磁界をかけて、はさみこむように
して保持すればディスクのメカ的な安定性は更に向上す
る。In FIG. 1, a static magnetic field is applied only from below to levitate the disk, but if a magnetic field is also applied from above and the disk is held in a sandwiched manner, the mechanical stability of the disk will be further improved.
又、ディスクを回転させる機構には、各種モータの原理
を応用した機構を用いることができる。Further, as a mechanism for rotating the disk, a mechanism applying the principles of various motors can be used.
本発明によれば、低温中で記録ディスクを安定に浮上保
持し、回転させることができる。According to the present invention, a recording disk can be stably held floating and rotated at low temperatures.
第１図は、本発明の一実施例の縦断面図である。 FIG. 1 is a longitudinal sectional view of an embodiment of the present invention.
Claims (1)
特徴とする記録装置。 ２、請求項１において、前記記録媒体を磁気浮上させて
保持することを特徴とする記録装置。 ３、請求項１において、フオトホールバーニング効果を
記録方式として用いることを特徴とする記録装置。 ４、請求項１において、前記記録媒体のディスクを、外
部からの磁界を変化させることにより回転させることを
特徴とする記録装置。 ５、超流動Ｈｅ中に磁気浮上させたフオトホールバーニ
ング効果を用いる記録媒体のディスクを、外部からの磁
界を変化させることにより回転させることを特徴とする
記録装置。６、フオトホールバーニング効果を記録方式
として用いるディスクにセラミクス系の高温超伝導物質
を付与し、液体窒素中に磁気浮上させて保持することを
特徴とする記録装置。[Claims] 1. A recording device characterized by holding a rotating recording medium in superfluid He. 2. The recording device according to claim 1, wherein the recording medium is held by magnetically levitating it. 3. The recording apparatus according to claim 1, characterized in that a photohole burning effect is used as a recording method. 4. The recording apparatus according to claim 1, wherein the disk of the recording medium is rotated by changing an external magnetic field. 5. A recording device characterized by rotating a disk of a recording medium magnetically levitated in superfluid He using a photohole burning effect by changing an external magnetic field. 6. A recording device that uses a photohole burning effect as a recording method and is characterized in that a ceramic-based high-temperature superconducting material is applied to a disk and the disk is held by magnetic levitation in liquid nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1159560A JPH0325748A (en) | 1989-06-23 | 1989-06-23 | Method for holding recording disk operated at low temp. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1159560A JPH0325748A (en) | 1989-06-23 | 1989-06-23 | Method for holding recording disk operated at low temp. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0325748A true JPH0325748A (en) | 1991-02-04 |
Family
ID=15696404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1159560A Pending JPH0325748A (en) | 1989-06-23 | 1989-06-23 | Method for holding recording disk operated at low temp. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0325748A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10844533B2 (en) | 2007-05-07 | 2020-11-24 | Whirlpool Corporation | Method for controlling a household washing machine |
-
1989
- 1989-06-23 JP JP1159560A patent/JPH0325748A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10844533B2 (en) | 2007-05-07 | 2020-11-24 | Whirlpool Corporation | Method for controlling a household washing machine |
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