CN204293157U - A kind of gradient coil protection circuit - Google Patents
A kind of gradient coil protection circuit Download PDFInfo
- Publication number
- CN204293157U CN204293157U CN201420746684.5U CN201420746684U CN204293157U CN 204293157 U CN204293157 U CN 204293157U CN 201420746684 U CN201420746684 U CN 201420746684U CN 204293157 U CN204293157 U CN 204293157U
- Authority
- CN
- China
- Prior art keywords
- gradient
- gradient coil
- performance element
- filter
- protection circuit
- 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.)
- Active
Links
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
The utility model discloses a kind of gradient coil protection circuit; described sensor is arranged on gradient coil; described performance element connects performance element by two item signal wire; two signal wires are provided with two traffic filters; described gradient coil has gradient filter and gradient amplifier by three gradient cable series connections; described gradient amplifier is connected with performance element by three power leads; described traffic filter and gradient filter are connected with screened room, and described performance element is picked out by three power leads.This gradient coil protection circuit, structure is simple, can utilize the multiple sensors in existing gradient coil, design the redundant circuit based on multi-detector, even if ensureing to have when sensor failure also can complete controlling functions.
Description
Technical field
The utility model relates to coil protect circuit engineering field, is specially a kind of gradient coil protection circuit.
Background technology
The Main Function of gradient coil is used to the gradient magnetic of the space encoding produced in magnetic resonance imaging system, realizes scanning and the imaging of any direction by different codings.
The principle of gradient coil produces magnetic field by the coil of energising to realize.In certain scope, in the magnetic field intensity that coil produces and coil, the electric current that passes through is directly proportional, ideally electric energy is all converted into magnetic field energy, but in actual applications because coil is not pure inductive circuit, current switching in ohmic loss wherein and inductance can produce a large amount of heat energy, and the temperature of coil can rise, if this temperature does not add control, system performance will decline, and even occurs safety issue.
All water cooling plant can be adopted at present in the design of gradient coil, the temperature being realized gradient coil by heat exchanger is controlled, in guarantee system work process, gradient coil temperature is stable, if but water-cooling system goes wrong, or gradient system goes wrong, so the temperature of gradient coil may be out of control, and consequence is hardly imaginable.
Utility model content
The purpose of this utility model is to provide a kind of gradient coil protection circuit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme: a kind of gradient coil protection circuit, comprise sensor, traffic filter, performance element, signal wire, gradient coil, gradient filter, screened room and gradient amplifier, described sensor is arranged on gradient coil, described performance element connects performance element by two item signal wire, two signal wires are provided with two traffic filters, described gradient coil has gradient filter and gradient amplifier by three gradient cable series connections, described gradient amplifier is connected with performance element by three power leads, described traffic filter and gradient filter are connected with screened room, described performance element is picked out by three power leads.
Preferably, described sensor is positioned at the outside or inside of gradient coil.
Preferably, described performance element is made up of signal adjustment circuit and controlled circuit.
Compared with prior art, the beneficial effects of the utility model are:
1. a kind of gradient coil protection circuit structure of the present utility model is simple.The utility model structure is simple, even only needs simple line and several element just can complete defencive function;
2. a kind of gradient coil protection circuit of the present utility model perfect in shape and function.Circuit includes the whole control link from sensor to performance element;
3. a kind of gradient coil protection circuit dependable performance of the present utility model.Ensureing to have when sensor failure the multiple sensors in existing gradient coil can be utilized, design the redundant circuit based on multi-detector, even if also can complete controlling functions.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1 sensor, 2 traffic filters, 3 performance elements, 4 signal wires, 5 gradient coils, 6 gradient filters, 7 screened rooms and 8 gradient amplifiers.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, the utility model provides a kind of technical scheme: a kind of gradient coil protection circuit, comprise sensor 1, traffic filter 2, performance element 3, signal wire 4, gradient coil 5, gradient filter 6, screened room 7 and gradient amplifier 8, sensor 1 is arranged on gradient coil 5, sensor 1 is positioned at the outside or inside of gradient coil 5, performance element 3 connects performance element 3 by two item signal wire 4, performance element 3 is made up of signal adjustment circuit and controlled circuit, two signal wires 4 are provided with two traffic filters 2, gradient coil 5 has gradient filter 6 and gradient amplifier 8 by three gradient cable series connections, traffic filter 2 and gradient filter 6 are connected with screened room 7, gradient amplifier 8 is connected with performance element 3 by three power leads, performance element 3 is picked out by three power leads.
Principle of work: wherein sets of temperature sensors 1 mainly completes the detection of control signal; Traffic filter 2 and the main transmission of settling signal inside and outside screened room 7 of signal wire 4, ensure that this Signal transmissions can not introduce extra interference in screened room 7; Performance element 3 is made up of signal adjustment circuit and controlled circuit, ensures enough power control capabilities and reliability.The cooperation of above-mentioned 3 parts, can ensure to realize the operating gradient coil temperature protection of magnetic resonance system.
Although illustrate and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and spirit, scope of the present utility model is by claims and equivalents thereof.
Claims (3)
1. a gradient coil protection circuit, comprise sensor (1), traffic filter (2), performance element (3), signal wire (4), gradient coil (5), gradient filter (6), screened room (7) and gradient amplifier (8), it is characterized in that: described sensor (1) is arranged on gradient coil (5), described performance element (3) connects performance element (3) by two item signal wire (4), two signal wires (4) are provided with two traffic filters (2), described gradient coil (5) is in series with gradient filter (6) and gradient amplifier (8) by three power leads, described gradient amplifier (8) is connected with performance element (3) by three power leads, described traffic filter (2) and gradient filter (6) are connected with screened room (7), described performance element (3) is picked out by three power leads.
2. a kind of gradient coil protection circuit according to claim 1, is characterized in that: described sensor (1) is positioned at the outside or inside of gradient coil (5).
3. a kind of gradient coil protection circuit according to claim 1, is characterized in that: described performance element (3) is made up of signal adjustment circuit and controlled circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420746684.5U CN204293157U (en) | 2014-12-03 | 2014-12-03 | A kind of gradient coil protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420746684.5U CN204293157U (en) | 2014-12-03 | 2014-12-03 | A kind of gradient coil protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204293157U true CN204293157U (en) | 2015-04-29 |
Family
ID=53098748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420746684.5U Active CN204293157U (en) | 2014-12-03 | 2014-12-03 | A kind of gradient coil protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204293157U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143128A (en) * | 2017-06-16 | 2019-01-04 | Tcl医疗核磁技术（无锡）有限公司 | A kind of magnetic resonance conductive plate |
| CN112578324A (en) * | 2019-09-29 | 2021-03-30 | 西门子(深圳)磁共振有限公司 | Gradient coil assembly and magnetic resonance imaging system |
-
2014
- 2014-12-03 CN CN201420746684.5U patent/CN204293157U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143128A (en) * | 2017-06-16 | 2019-01-04 | Tcl医疗核磁技术（无锡）有限公司 | A kind of magnetic resonance conductive plate |
| CN112578324A (en) * | 2019-09-29 | 2021-03-30 | 西门子(深圳)磁共振有限公司 | Gradient coil assembly and magnetic resonance imaging system |
| CN112578324B (en) * | 2019-09-29 | 2024-03-19 | 西门子(深圳)磁共振有限公司 | Gradient coil assembly and magnetic resonance imaging system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204293157U (en) | A kind of gradient coil protection circuit | |
| CN204177901U (en) | A kind of intelligent traffic signal machine failure detector circuit | |
| CN203274528U (en) | Intelligent control system of resistance furnace temperature | |
| CN203366944U (en) | Voltage adjusting lead structure of transformer | |
| CN102103407A (en) | Input/output device and environment monitoring system with same | |
| CN104251743A (en) | GSM-based electricity motor room monitoring system | |
| CN207408841U (en) | A kind of hot flow path temperature controller with warning function | |
| CN203848941U (en) | Overheat alarm circuit system for oil-immersed transformer | |
| CN201765482U (en) | PLC drive controller of electro-hydraulic proportional valve | |
| CN205028137U (en) | PLC control cabinet | |
| CN206402249U (en) | Smart home intelligent gateway central control circuit | |
| CN203414758U (en) | An intelligent monitoring circuit of an incubator | |
| CN204807997U (en) | Intelligence signal isolation changer | |
| CN204442323U (en) | A kind of single live wire power getting radio frequency remote control switch | |
| CN104518781A (en) | Signal isolator | |
| CN204166057U (en) | Dry-type air-core reactor on-Line Monitor Device | |
| CN203632564U (en) | Stable current control device for rectification power supply | |
| CN204288034U (en) | A kind of single-phase furnace of calcium carbide voltage-stabilizing system | |
| CN102970060B (en) | Sensor combined with power carrier | |
| CN208739096U (en) | A kind of direct current signal input isolation safe grid | |
| CN106655089A (en) | Intelligent power distribution cabinet | |
| CN203166847U (en) | Lc filter cabinet | |
| CN203012543U (en) | A temperature reducing device used in a transformer station direct current system | |
| CN205980178U (en) | Manual formula air conditioner three -phase circuit falls positive system | |
| CN204304979U (en) | A kind of strong and weak electric signal isolation modular converter with instruction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190827 Address after: 211113 Jiangsu Province Jiangning Economic and Technological Development Zone Flying Sky Avenue 69 Airport Science Creation Center Park R&D Building North Building 1406 (Jiangning Development Zone) Co-patentee after: HUNAN MAITAIKE MEDICAL TECHNOLOGY Co.,Ltd. Patentee after: NANJING CICHEN MEDICAL TECHNOLOGY Co.,Ltd. Address before: 211113 No. 15 Shenzhou Road, Lukou Street, Jiangning District, Nanjing City, Jiangsu Province Patentee before: NANJING CICHEN MEDICAL TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Gradient coil protecting circuit Effective date of registration: 20190920 Granted publication date: 20150429 Pledgee: Bank of Changsha Limited by Share Ltd. science and Technology Branch Pledgor: NANJING CICHEN MEDICAL TECHNOLOGY Co.,Ltd.|HUNAN MAITAIKE MEDICAL TECHNOLOGY Co.,Ltd. Registration number: Y2019430000018 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221017 Address after: 410199 first floor, building 2, Changsha County business office building, the intersection of liangtang road and Dongsheng Road (National Highway 107), Xingsha street, Changsha County, Changsha City, Hunan Province Patentee after: HUNAN MAITAIKE MEDICAL TECHNOLOGY Co.,Ltd. Address before: 211113 room 1406, North building, R & D building, airport science and Technology Innovation Center Park, No. 69 Feitian Avenue, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province (Jiangning Development Zone) Patentee before: NANJING CICHEN MEDICAL TECHNOLOGY Co.,Ltd. Patentee before: HUNAN MAITAIKE MEDICAL TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20221130 Registration number: Y2019430000018 Pledgor after: HUNAN MAITAIKE MEDICAL TECHNOLOGY Co.,Ltd. Pledgor before: NANJING CICHEN MEDICAL TECHNOLOGY Co.,Ltd. Pledgor before: HUNAN MAITAIKE MEDICAL TECHNOLOGY Co.,Ltd. |
|
| PM01 | Change of the registration of the contract for pledge of patent right |