CN2233113Y - 无莫尔条纹电磁屏蔽观察窗 - Google Patents
无莫尔条纹电磁屏蔽观察窗 Download PDFInfo
- Publication number
- CN2233113Y CN2233113Y CN 94231862 CN94231862U CN2233113Y CN 2233113 Y CN2233113 Y CN 2233113Y CN 94231862 CN94231862 CN 94231862 CN 94231862 U CN94231862 U CN 94231862U CN 2233113 Y CN2233113 Y CN 2233113Y
- Authority
- CN
- China
- Prior art keywords
- layers
- utility
- mohr
- model
- orders
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
一种主要用于医疗核磁共振机房或电磁防护保密机房的观察窗。它由二层目数不同的金属网构成(金属网由经纬线互相垂直的方式编成)在空间中二层金属网保持一定的距离且平行，经线之间(或纬线之间)有一定的夹角，该观察窗能有效地克服莫尔条纹这一光学现象，使观察者有更清晰的视野，且制造容易，成本低廉。
Description
本实用新型涉及一种电磁屏蔽系统用观察窗，特别适用于医疗核磁共振系统和电磁屏蔽保密机房。
近年来由于科学技术的发展，电磁屏蔽技术已被越来越广泛地应用，医院里的核磁共振系统也越来越多，在这些系统中一般都要在医生操作台前按装一个向机房内观察仪器及人员的窗口，一般制造的观察窗都会产生光学上的阴影条纹(也称莫尔条纹)防碍视线，本实用新型提供的产品，基本上消除了莫尔条纹，且可以做成面积大于1米×1.5米以上，制造容易，成本低，本实用新型是通过下述方案来实现的，观察窗由二层目数不同的金属网构成，其二层金属网分别是以经纬线互相垂直的方式编成的，在空间中二层金属网保持一定的距离，且经线之间(或纬线之间)有一定的夹角。下面结合附图来进一步说明本实用新型。
图(1)是本实用新型电磁屏蔽观察窗的正视图；
图(2)是本实用新型电磁屏蔽观察窗的剖视图；
图(3)是本实用新型电磁屏蔽观察窗的局部视图；
在图(2)中1、第一层铜网2、第二层铜网3、窗框
参见附图，示出了本实用新型的一个最佳实施例。
附图中铜网1是由经纬线互相垂直的方式编织成的，目数一般选定在10目到40目之间为宜，铜网四周与窗框之间要有紧密的电接触，如采用锡焊等。铜网2也是由经纬线互相垂直的方式编织的，目数一般选定约为铜网1目数的一倍，即为20目到80目该层铜网要与铜网1保持一定的平行距离，一般为几公分为宜，同时与铜网1保持一定的夹角，即经线之间(或纬线之间)有一个夹角α，该夹角一般选定在17°左右效果比较理想，同时要与窗框有紧密的电接触。
窗框3一般由金属做成，以便与铜网连接，且保持铜网之间的距离和夹角。
Claims (3)
1、一种电磁屏蔽观察窗，其特征在于观察窗是由二层目数不同的金属网构成，其二层金属网是以经纬线互相垂直的方式编织成的，二层金属网保持一定的距离且经纬之间、或纬线之间有一夹角α。
2、按权利要求1所述的电磁屏蔽观察窗，其特征是第一层铜网的目数可选为10目到40目，第二层铜网的目数约为第一层目数的一倍即20目到80目。
3、按权利要求1所述的电磁屏蔽观察窗，其特征是夹角α为17°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94231862 CN2233113Y (zh) | 1994-12-30 | 1994-12-30 | 无莫尔条纹电磁屏蔽观察窗 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94231862 CN2233113Y (zh) | 1994-12-30 | 1994-12-30 | 无莫尔条纹电磁屏蔽观察窗 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2233113Y true CN2233113Y (zh) | 1996-08-14 |
Family
ID=33843580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94231862 Expired - Fee Related CN2233113Y (zh) | 1994-12-30 | 1994-12-30 | 无莫尔条纹电磁屏蔽观察窗 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2233113Y (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9668391B2 (en) | 2014-02-14 | 2017-05-30 | Harbin Institute Of Technology | Electromagnetic shielding optical window based on array of rings and sub-rings having triangular and orthogonal mixed distribution |
| US9686892B2 (en) | 2014-02-14 | 2017-06-20 | Harbin Institute Of Technology | Multi-period master-slave nested ring array electromagnetic shielding optical window having concentric rings |
-
1994
- 1994-12-30 CN CN 94231862 patent/CN2233113Y/zh not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9668391B2 (en) | 2014-02-14 | 2017-05-30 | Harbin Institute Of Technology | Electromagnetic shielding optical window based on array of rings and sub-rings having triangular and orthogonal mixed distribution |
| US9686892B2 (en) | 2014-02-14 | 2017-06-20 | Harbin Institute Of Technology | Multi-period master-slave nested ring array electromagnetic shielding optical window having concentric rings |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS58188038A (ja) | 放射及び静電気抑圧装置 | |
| CN1307597C (zh) | 3d图象处理设备 | |
| CN2233113Y (zh) | 无莫尔条纹电磁屏蔽观察窗 | |
| JP2005502969A5 (zh) | ||
| CN106149162A (zh) | 一种具有导电性周期结构的电磁屏蔽织物及制备方法 | |
| CN106415319A (zh) | 光子计数型检测器 | |
| CN112859365B (zh) | 基于渐变孔径针孔阵列的双视3d显示方法 | |
| CA1101134A (en) | X-ray detector | |
| CN1108027A (zh) | 屏蔽罩的观察窗壁 | |
| CN110579135B (zh) | 一种具有高隐藏性的军事伪装设施 | |
| CA3189947A1 (en) | Detection collimation unit, detection apparatus and spect imaging system | |
| CA1268203C (en) | Portable radiation and static electricity suppression and anti-glare screen | |
| Grabowska et al. | The analysis of attenuation of electromagnetic field by woven structures based on hybrid fancy yarns | |
| Bassano et al. | Physical, performance, and dosimetric characteristics of the Δ-Scan 50 whole-body/brain scanner | |
| GB2224850A (en) | Fluid flow volume measurement and billing system | |
| CN109507621A (zh) | 一种mri用屏蔽布式电磁屏蔽房 | |
| CN210200202U (zh) | 一种高对比度的led显示屏 | |
| CN112859364B (zh) | 基于离散式复合渐变宽度图像元阵列的双视3d显示方法 | |
| JPH02910B2 (zh) | ||
| HALE et al. | Pilot assessment of the AH-64 helmet mounted display system | |
| CN105759437B (zh) | 一种去除裸眼3d显示模组中莫尔条纹的装置及方法 | |
| EP0624669B1 (en) | A compound fabric made up of single or ply yarns of conventional textile fibers interlaced, according to a rectangular pattern, with single or ply yarns at least partially mixed with a carbon filament, possessing shielding properties against electric fields | |
| CN218978950U (zh) | 一种ct检查用的防辐射装置 | |
| CN112859363B (zh) | 基于双显示屏的3d显示方法 | |
| RU87047U1 (ru) | Средство защиты от электромагнитного излучения |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |