CN104753027A - Superconducting magnet and quench protection device and method thereof, and magnetic resonance imaging system adopting superconducting magnet - Google Patents
Superconducting magnet and quench protection device and method thereof, and magnetic resonance imaging system adopting superconducting magnet Download PDFInfo
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Abstract
The invention discloses a quench protection device of a superconducting magnet. The quench protection device of the superconducting magnet includes an emergency quench switch, a monitoring unit and an alarm unit, wherein the monitoring unit is used for sending a prompt command to the alarm unit according to the state of the emergency quench switch, and the alarm unit is used for sending an alarm signal according to the prompt command. The invention also discloses a quench protection method of the superconducting magnet. The quench protection method includes the steps of: S1, sending a prompt command to the alarm unit according to the state of the emergency quench switch; S2, sending an alarm signal by the alarm unit according to the prompt command. The invention also discloses the superconducting magnet using the quench protection device, and a magnetic resonance imaging system adopting the superconducting magnet.
Description
Technical field
The present invention relates to medical imaging device, particularly one can be used for superconducting magnet and quenching protection device, the method for magnetic resonance imaging (MRI), and adopts the magnetic resonance imaging system of this superconducting magnet.
Background technology
Magnet is the core component in magnetic resonance imaging (MRI) system, can be the magnetic field environment that imaging provides required.At present, the superconducting magnet in MRI system can produce good evenness, magnetic field that stability is high.Under normal circumstances, during the elimination magnetic field of having a mind to realize repairing, safeguard or change operating aspect requirement, usually eliminate magnetic field by controlled oblique deascension, but the mode in this elimination magnetic field needs a period of time and needs suitable effective control.When being in an emergency, such as, when needing to cut off magnetic field to prevent from damaging individual or patient or when needing due to the system failure or external action to cut off magnetic field, need to start quench device to make magnet quenching.
Existing quench device generally comprises at least one superconducting coil, at least one heater and at least one switch.After pressing switch, current flows through heater makes heater generate heat and by heat transfer to the superconducting coil be soaked in cryogenic liquid, thus causes the urgent quench of magnetic resonance system.But in existing quench device, after pressing switch, if unmanned, this switch is returned to normal position (i.e. the position of non-start up), then this switch will be in and be activated position always.This will cause heater be in heated condition always and constantly produce heat, make superconducting coil temperature increase, will cause cryogenic liquid sharply to vaporize and lose the cryogenic liquid of significant quantity, cause cost to increase.In addition, the temperature of the cryogenic liquid after vaporization is still lower, may damage as cold burning even is suffocated to the people be in contact with it.
Summary of the invention
This invention is intended to provide a kind of quenching protection device and method of saving the superconducting magnet of cooling agent.The present invention is also intended to provide a kind of and uses the superconducting magnet of this quenching protection device and adopt the magnetic resonance imaging system of this superconducting magnet.
Embodiments provide a kind of quenching protection device of superconducting magnet, the quenching protection device of described superconducting magnet comprises a urgent quench switch, a monitoring unit and an alarm unit; Described monitoring unit is used for sending a hint instructions according to the state of described urgent quench switch to described alarm unit; Described alarm unit is used for sending an alarm signal according to described hint instructions.
According to a kind of execution mode, described monitoring unit self-inspection measures after switch activated of described urgent quench postpones certain hour and sends described hint instructions.
According to a kind of execution mode, described monitoring unit comprises a first detection module and an instruction sending module; This testing result for detecting the state of described urgent quench switch, and is sent to described instruction sending module by described first detection module; Described instruction sending module, for judging this testing result, and self-inspection sends described hint instructions after measuring switch activated of described urgent quench delay certain hour.
According to a kind of execution mode, described instruction sending module also for judging this testing result, and when described urgent quench switch cuts out and described alarm unit sends described alarm signal, sends a halt instruction to described alarm unit; Described alarm unit is also for stopping sending described alarm signal according to described halt instruction.
According to a kind of execution mode, described monitoring unit is used for sending described hint instructions according to the magnetic field intensity of described superconducting magnet and the state of described urgent quench switch to described alarm unit.
According to a kind of execution mode, described monitoring unit comprises one second detection module and an instruction sending module; This testing result for the state of the magnetic field intensity and described urgent quench switch that detect described superconducting magnet, and is sent to described instruction sending module by described second detection module; Described instruction sending module, for judging this testing result, and when described magnetic field intensity is zero and described urgent quench is switch activated, sends described hint instructions to described alarm unit.
According to a kind of execution mode, described instruction sending module also for judging this testing result, and when described magnetic field intensity be zero, described urgent quench switch close and described alarm unit sends described alarm signal time, send a halt instruction to described alarm unit; Described alarm unit is also for stopping sending described alarm signal according to described halt instruction.
According to a kind of execution mode, described instruction sending module also sends a halt instruction to described alarm unit after postponing certain hour completing judgement from described instruction sending module; Described alarm unit is also for stopping sending described alarm signal according to described halt instruction.
According to a kind of execution mode, described second detection module detects described magnetic field intensity by the pressure detected in a cryostat; Whether described second detection module runs by the position of detecting described urgent quench switch or at least one heater of detecting described superconducting magnet the state detecting described urgent quench switch.
According to a kind of execution mode, described alarm signal comprises at least one mode in sounding, luminescence and display reminding window.
A kind of superconducting magnet comprises the quenching protection device of above-mentioned superconducting magnet.
A quench protection method for superconducting magnet, comprising:
S1: the state according to a urgent quench switch sends a hint instructions to an alarm unit;
S2: described alarm unit sends an alarm signal according to described hint instructions.
According to a kind of execution mode, in described step S1, self-inspection measures after switch activated of described urgent quench postpones certain hour and sends described hint instructions.
According to a kind of execution mode, described step S1 comprises:
Detect the state of described urgent quench switch, judge this testing result, and self-inspection sends described hint instructions after measuring switch activated of described urgent quench delay certain hour.
According to a kind of execution mode, described step S1 also comprises: judge this testing result, and when described urgent quench switch cuts out and described alarm unit sends described alarm signal, sends a halt instruction to described alarm unit;
Described step S2 also comprises: described alarm unit stops sending described alarm signal according to described halt instruction.
According to a kind of execution mode, described step S1 also comprises:
Described hint instructions is sent to described alarm unit according to the magnetic field intensity of at least one superconducting magnet and the state of described urgent quench switch.
According to a kind of execution mode, described step S1 also comprises:
Detect the magnetic field intensity of described superconducting magnet and the state of described urgent quench switch, judge this testing result, and when described magnetic field intensity is zero and described urgent quench is switch activated, send described hint instructions to described alarm unit.
According to a kind of execution mode, described step S1 also comprises:
Judge this testing result, and when described magnetic field intensity be zero, described urgent quench switch close and described alarm unit sends described alarm signal time, send a halt instruction to described alarm unit;
Described step S2 also comprises: described alarm unit stops sending described alarm signal according to described halt instruction.
According to a kind of execution mode, described step S1 also comprises:
A halt instruction is sent to described alarm unit after delay certain hour from completing judgement;
Described step S2 also comprises: described alarm unit stops sending described alarm signal according to described halt instruction.
According to a kind of execution mode, the magnetic field intensity of the described superconducting magnet of the detection in described step S1 is realized by the pressure detected in a cryostat; Whether the state of the described urgent quench switch of the detection in described step S1 is position by detecting described urgent quench switch or detects described heater and run and realize.
According to a kind of execution mode, described alarm signal comprises at least one mode in sounding, luminescence and display reminding window.
Superconducting magnet and quenching protection device thereof, method and adopt the magnetic resonance imaging system of this superconducting magnet in one embodiment of the invention, monitoring unit can send hint instructions according to the state of urgent quench switch to alarm unit, makes alarm unit send alarm signal and closes urgent quench switch to point out operator; Like this, after superconducting magnet realizes urgent quench, operator can be made to close urgent quench switch as early as possible in order to avoid produce unnecessary heat, and cryogenic liquid can be saved and prevent cold burning.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of specification, and can become apparent to allow above and other object of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of superconducting magnet in one embodiment of the invention.
Fig. 2 is the schematic diagram of superconducting magnet in another embodiment of the present invention.
Fig. 3 is the structural representation of the monitoring unit of superconducting magnet in one embodiment of the invention.
Fig. 4 is the structural representation of the monitoring unit of superconducting magnet in one embodiment of the invention.
Fig. 5 is the schematic flow sheet of the quench protection method of superconducting magnet in one embodiment of the invention.
Wherein, Reference numeral comprises:
100 superconducting magnet 110 cryostat 112 coils
113 coil 114 coil 115 coils
116 heater 117 heater 118 heaters
The urgent quench switch of 119 heater 120 power supply device 130
131 start button 140 monitoring unit 141 first detection modules
142 second detection module 146 instruction sending module 150 alarm units
151 ACK button 180 displays
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Figure 1 shows that the schematic diagram of superconducting magnet 100 in one embodiment of the invention.As shown in fig. 1, superconducting magnet 100 comprises a cryostat 110, multiple superconducting coil 112-115, multiple heater 116-119, a power supply device 120, urgent quench switch 130, monitoring unit 140, alarm unit 150.It should be noted that, superconducting magnet 100 also comprises further feature, as electrical connection, mechanical support etc., in order to easy and not shown in the drawings.
Wherein, cryogenic liquid is included in cryostat 110.
Coil 112-115 can be placed in cryostat 110 according to well known to a person skilled in the art the mode of any appropriate and be coupled, to realize desired function.Such as, coil 112-115 can be arranged in cryostat 110 and to be soaked in cryogenic liquid.
Heater 116-119 can adopt resistive heater, and is associated with coil 112-115 respectively.Heater 116-119 can be used for separately energising by wiring or according to design and/or functional requirement in the mode of series, parallel or series/parallel combination by wiring.Preferably, each heater 116/117/118/119 is associated with a coil 112/113/114/115, such as, heater 116-119 can respectively with coil 112-115 close thermal contact.
Power supply device 120 for providing electric energy to one or more in heater 116-119, thus starts quench.In one embodiment, power supply device 120 can comprise at least one in power supply, battery and electric energy generation device.Electric energy generation device can be simple generator.
Urgent quench switch 130 is artificial control switchs forcing initiatively quench, is connected respectively by wire with power supply device 120 and heater 116-119.Urgent quench switch 130 having a start button 131, for when being in an emergency, such as, when needing to cut off magnetic field to prevent from damaging individual or patient or when needing due to the system failure or external action to cut off magnetic field, starting quench.Particularly, operation start button 131 makes power supply device 120 be communicated with heater 116-119, electric current from power supply device 120 flow into heater 116-119 make heater 116-119 generate heat and by heat transfer to coil 112-115, thus start quench.After start button 131 is activated, if unmanned, start button 131 returns to normal position (namely cutting out urgent quench switch 130), then start button 131 will be in always be activated position.
Alarm unit 150 is connected with monitoring unit 140, for receiving a hint instructions of monitoring unit 140 transmission and sending an alarm signal according to hint instructions.Alarm signal comprises at least one mode in sounding, luminescence and display reminding window.In one embodiment, as shown in Figure 1, alarm unit 150 can comprise ACK button 151.In one embodiment, starting ACK button 151 can make alarm unit 150 stop sending alarm signal.In other embodiments, even if operator can be arranged start ACK button 151 on alarm unit 150, alarm unit 150 can not stop sending chimes of doom, just stops sending alarm signal when only having alarm unit 150 to receive a halt instruction of monitoring unit 140 transmission.
In addition, in superconducting magnet 100 running, may there is multiple situation needs alarm unit 150 to send chimes of doom, in order to distinguish different situations, can arrange different chimes of dooms further to represent different situations in alarm unit 150.Such as, can set and send that " warning " sound represents the too high situation of temperature, setting sends " warnings " sound and represents that the situation that cryogenic liquid level is too low and setting send " promptly " sound and represent the urgent quench situation of startup etc.
Moreover as shown in Figure 2, alarm unit 150 can comprise a display 180.Display 180 is connected with monitoring unit 140, for receive monitoring unit 140 send hint instructions and according to hint instructions display reminding window.
Monitoring unit 140 is for sending hint instructions according to the state of urgent quench switch 130 to alarm unit 150.
In one embodiment, monitoring unit 140 self-inspection can measure urgent quench switch 130 and has started and postpone to send hint instructions after certain hour.When specific implementation, as shown in Figure 3, monitoring unit 140 comprises first detection module 141 and an instruction sending module 146;
This testing result for detecting the state of urgent quench switch 130, and is sent to instruction sending module 146 by first detection module 141;
Instruction sending module 146 for judging this testing result, and when urgent quench switch 130 starts, sends hint instructions after postponing certain hour.
Wherein, the time of delay can set according to actual conditions, and such as, the time that can realize needed for urgent quench according to superconducting magnet 100 sets, such as, can be 20s.Like this, after realizing urgent quench, instruction sending module 146 can send hint instructions to alarm unit 150 immediately, make alarm unit 150 send alarm signal, to point out operator, start button 131 returns to normal position (namely cutting out urgent quench switch 130), thus namely forbidding heater 116-119 stops heating, in order to avoid produce unnecessary heat, and cryogenic liquid can be saved and prevent cold burning.
In addition, instruction sending module 146 also for judging this testing result, and when urgent quench switch 130 cuts out and alarm unit 150 sends alarm signal, sends halt instruction to alarm unit 150; Alarm unit 150 is also for stopping sending alarm signal according to halt instruction.Like this, after the urgent quench switch 130 of closedown, alarm unit 150 can be made to stop sending alarm signal.
In another embodiment, monitoring unit 140 is for sending hint instructions according to the magnetic field intensity of superconducting magnet 112-115 and the state of urgent quench switch 130 to alarm unit 150.When specific implementation, as shown in Figure 4, monitoring unit 140 can comprise one second detection module 142 and an instruction sending module 146.
This testing result for the state of the magnetic field intensity and urgent quench switch 130 that detect superconducting magnet 112-115, and is sent to instruction sending module 146 by the second detection module 142;
Instruction sending module 146 for judging this testing result, and when magnetic field intensity is zero and urgent quench switch 130 starts, sends hint instructions to alarm unit 150.
Wherein, the second detection module 142 is by detecting pressure in a cryostat 110 to detect magnetic field intensity; Such as, when the pressure detected is greater than certain threshold value, instruction sending module 146 can judge that magnetic field intensity is zero.Whether the second detection module 142 is heated the state detecting urgent quench switch 130 by the position or detection heater 116-119 detecting urgent quench switch 130.
Like this, after realizing urgent quench, namely when magnetic field intensity is zero and urgent quench switch 130 starts, instruction sending module 146 can send hint instructions to alarm unit 150 immediately, make alarm unit 150 send alarm signal, to point out operator, start button 131 returns to normal position (namely cutting out urgent quench switch 130), thus namely forbidding heater 116-119 stops heating, in order to avoid produce unnecessary heat, and can save cryogenic liquid and prevent cold burning.
In addition, instruction sending module 146 also for judging this testing result, and when magnetic field intensity be zero, urgent quench switch 130 close and alarm unit 150 sends alarm signal time, send halt instruction to alarm unit 150; Alarm unit 150 is also for stopping sending described alarm signal according to described halt instruction.In addition, instruction sending module 146 also sends halt instruction to alarm unit 150 after postponing certain hour completing judgement from instruction sending module 146; Alarm unit 150 is also for stopping sending alarm signal according to halt instruction.Like this, after the urgent quench switch 130 of closedown, can stop sending alarm signal from command of execution alarm unit 150.
In the foregoing description, urgent quench switch 130, monitoring unit 140 and alarm unit 150, for carrying out the quench protection of superconducting magnet 100, therefore, can be called the quenching protection device of superconducting magnet 100.
Figure 5 shows that the schematic flow sheet of the quench protection method of superconducting magnet in one embodiment of the invention.The quench protection method of this superconducting magnet can be realized by the structure in Fig. 1 to Fig. 4, below in conjunction with Fig. 1 to Fig. 4 and the quench protection method illustrating this superconducting magnet.The quench protection method of this superconducting magnet can comprise:
S1: the state according to a urgent quench switch 130 sends a hint instructions to an alarm unit 150;
S2: alarm unit 150 sends an alarm signal according to hint instructions.
In one embodiment, in step sl, self-inspection measures after urgent quench switch 130 has started delay certain hour and sends hint instructions.When specific implementation, step S1 can comprise:
Detect the state of urgent quench switch 130, judge this testing result, and when urgent quench switch 130 starts, self-inspection measures after urgent quench switch 130 has started delay certain hour and sends hint instructions.
Wherein, the time of delay can set according to actual conditions, such as, can according to the time setting realized needed for urgent quench, such as, can be 20s.Like this, after realizing urgent quench, hint instructions can be sent immediately to alarm unit 150, make alarm unit 150 send alarm signal and close urgent quench switch 130 to point out operator, thus namely forbidding heater 116-119 stops heating, in order to avoid produce unnecessary heat, and cryogenic liquid can be saved and prevent cold burning.
In addition, step S1 also comprises: judge this testing result, and when urgent quench switch 130 cuts out and alarm unit 150 sends alarm signal, sends a halt instruction to alarm unit 150; Step S2 also comprises: alarm unit 150 stops sending alarm signal according to halt instruction.Like this, after the urgent quench switch 130 of closedown, alarm unit 150 can be made to stop sending alarm signal.
In another embodiment, step S1 also comprises: send hint instructions according to the magnetic field intensity of at least one superconducting magnet 112-115 and the state of urgent quench switch 130 to alarm unit 150.When specific implementation, step S1 can comprise:
Detect the magnetic field intensity of superconducting magnet 112-115 and the state of urgent quench switch 130, judge this testing result, and when magnetic field intensity is zero and urgent quench switch 130 starts, send hint instructions to alarm unit 150.
Wherein, the magnetic field intensity of the detection superconducting magnet 112-115 in step S1 realizes by the pressure detected in a cryostat 110; Such as, when the pressure detected is greater than certain threshold value, can judge that magnetic field intensity is zero.Whether the state of the urgent quench of the detection in step S1 switch 130 is by detecting the position of urgent quench switch 130 or detecting heater 116-119 and run and realize.
Like this, after realizing urgent quench, namely when magnetic field intensity is zero and urgent quench switch 130 starts, hint instructions can be sent immediately to alarm unit 150, make alarm unit 150 send alarm signal and close urgent quench switch 130 to point out operator, thus namely forbidding heater 116-119 stops heating, in order to avoid produce unnecessary heat, and can save cryogenic liquid and prevent cold burning.
In addition, step S1 also comprises:
Judge this testing result, and when magnetic field intensity be zero, urgent quench switch 130 close and alarm unit 150 sends alarm signal time, send a halt instruction to alarm unit 150;
Step S2 also comprises: alarm unit 150 stops sending alarm signal according to halt instruction.
In addition, step S1 also comprises:
A halt instruction is sent to alarm unit 150 after delay certain hour from completing judgement;
Step S2 also comprises: alarm unit 150 stops sending alarm signal according to halt instruction.
Like this, after the urgent quench switch 130 of closedown, can stop sending alarm signal from command of execution alarm unit 150.
Above-mentioned superconducting magnet 100 can be used in a magnetic resonance imaging system, for imaging provides required magnetic field environment.
Above-mentioned is superconducting magnet in one embodiment of the invention and quenching protection device thereof, method and the magnetic resonance imaging system adopting this superconducting magnet, monitoring unit 140 can send hint instructions according to the state of urgent quench switch 130 to alarm unit 150, makes alarm unit 150 send alarm signal and closes urgent quench switch 130 to point out operator; Like this, after superconducting magnet 100 realizes urgent quench, operator can be made to close urgent quench switch 130 as early as possible in order to avoid produce unnecessary heat, and cryogenic liquid can be saved and prevent cold burning.
In sum, the invention discloses a kind of quenching protection device of superconducting magnet, the quenching protection device of described superconducting magnet comprises a urgent quench switch, a monitoring unit and an alarm unit; Described monitoring unit is used for sending a hint instructions according to the state of described urgent quench switch to described alarm unit; Described alarm unit is used for sending an alarm signal according to described hint instructions.The invention also discloses a kind of quench protection method of superconducting magnet, comprising: S1: the state according to a urgent quench switch sends a hint instructions to an alarm unit; S2: described alarm unit sends an alarm signal according to described hint instructions.The invention also discloses and a kind ofly use the superconducting magnet of this quenching protection device and adopt the magnetic resonance imaging system of this superconducting magnet.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (22)
1. a quenching protection device for superconducting magnet, is characterized in that, the quenching protection device of described superconducting magnet comprises a urgent quench switch (130), a monitoring unit (140) and an alarm unit (150);
Described monitoring unit (140), for sending a hint instructions according to the state of described urgent quench switch (130) to described alarm unit (150);
Described alarm unit (150), for sending an alarm signal according to described hint instructions.
2. the quenching protection device of superconducting magnet according to claim 1, is characterized in that, described monitoring unit (140) self-inspection measures after described urgent quench switch (130) has started delay certain hour and sends described hint instructions.
3. the quenching protection device of superconducting magnet according to claim 2, is characterized in that, described monitoring unit (140) comprises a first detection module (141) and an instruction sending module (146);
Described first detection module (141), for detecting the state of described urgent quench switch (130), and sends to described instruction sending module (146) by this testing result;
Described instruction sending module (146), for judging this testing result, and sends described hint instructions postpone certain hour from described first detection module (141) detects described urgent quench switch (130) startup after.
4. the quenching protection device of superconducting magnet according to claim 3, it is characterized in that, described instruction sending module (146), also for judging this testing result, and when described urgent quench switch (130) is closed and described alarm unit (150) sends described alarm signal, send a halt instruction to described alarm unit (150);
Described alarm unit (150), also for stopping sending described alarm signal according to described halt instruction.
5. the quenching protection device of superconducting magnet according to claim 1; it is characterized in that; described monitoring unit (140), for sending described hint instructions according to the magnetic field intensity of described superconducting magnet (112-115) and the state of described urgent quench switch (130) to described alarm unit (150).
6. the quenching protection device of superconducting magnet according to claim 5, is characterized in that, described monitoring unit (140) comprises one second detection module (142) and an instruction sending module (146);
Described second detection module (142), for the state of the magnetic field intensity and described urgent quench switch (130) that detect described superconducting magnet (112-115), and this testing result is sent to described instruction sending module (146);
Described instruction sending module (146), for judging this testing result, and when described magnetic field intensity is zero and described urgent quench switch (130) starts, sends described hint instructions to described alarm unit (150).
7. the quenching protection device of superconducting magnet according to claim 6, it is characterized in that, described instruction sending module (146), also for judging this testing result, and when described magnetic field intensity be zero, described urgent quench switch (130) close and described alarm unit (150) sends described alarm signal time, send a halt instruction to described alarm unit (150);
Described alarm unit (150), also for stopping sending described alarm signal according to described halt instruction.
8. the quenching protection device of superconducting magnet according to claim 6, it is characterized in that, described instruction sending module (146), also sends a halt instruction for postponing the backward described alarm unit (150) of certain hour completing described judgement from described instruction sending module (146);
Described alarm unit (150), also for stopping sending described alarm signal according to described halt instruction.
9. the quenching protection device of superconducting magnet according to claim 6, is characterized in that, described second detection module (142) detects described magnetic field intensity by the pressure in detection one cryostat (110); Whether described second detection module (142) runs to detect the state of described urgent quench switch (130) by the position of detecting described urgent quench switch (130) or at least one heater (116-119) of detecting described superconducting magnet.
10. the quenching protection device of superconducting magnet according to claim 1, is characterized in that, described alarm signal comprises at least one mode in sounding, luminescence and display reminding window.
11. 1 kinds of superconducting magnets (100), is characterized in that, described superconducting magnet (100) comprises as the quenching protection device in claim 1 to 10 as described in any one.
12. 1 kinds of magnetic resonance imaging systems, is characterized in that, comprise superconducting magnet as claimed in claim 11.
The quench protection method of 13. 1 kinds of superconducting magnets, comprising:
S1: the state according to a urgent quench switch (130) sends a hint instructions to an alarm unit (150);
S2: described alarm unit (150) sends an alarm signal according to described hint instructions.
The quench protection method of 14. superconducting magnets according to claim 13, is characterized in that, in described step S1, self-inspection measures after described urgent quench switch (130) has started delay certain hour and sends described hint instructions.
The quench protection method of 15. superconducting magnets according to claim 14, is characterized in that, described step S1 comprises:
Detect the state of described urgent quench switch (130), judge this testing result, and self-inspection measures described urgent quench switch (130) has started and postpone to send described hint instructions after certain hour.
The quench protection method of 16. superconducting magnets according to claim 14, it is characterized in that, described step S1 also comprises: judge this testing result, and when described urgent quench switch (130) is closed and described alarm unit (150) sends described alarm signal, send a halt instruction to described alarm unit (150);
Described step S2 also comprises: described alarm unit (150) stops sending described alarm signal according to described halt instruction.
The quench protection method of 17. superconducting magnets according to claim 13, is characterized in that, described step S1 also comprises:
Described hint instructions is sent to described alarm unit (150) according to the magnetic field intensity of at least one superconducting magnet (112-115) and the state of described urgent quench switch (130).
The quench protection method of 18. superconducting magnets according to claim 17, is characterized in that, described step S1 also comprises:
Detect the magnetic field intensity of described superconducting magnet (112-115) and the state of described urgent quench switch (130), judge this testing result, and when described magnetic field intensity is zero and described urgent quench switch (130) starts, send described hint instructions to described alarm unit (150).
The quench protection method of 19. superconducting magnets according to claim 18, is characterized in that, described step S1 also comprises:
Judge this testing result, and when described magnetic field intensity be zero, described urgent quench switch (130) close and described alarm unit (150) sends described alarm signal time, send a halt instruction to described alarm unit (150);
Described step S2 also comprises: described alarm unit (150) stops sending described alarm signal according to described halt instruction.
The quench protection method of 20. superconducting magnets according to claim 18, is characterized in that, described step S1 also comprises:
Postpone the backward described alarm unit (150) of certain hour described judgement send a halt instruction from completing;
Described step S2 also comprises: described alarm unit (150) stops sending described alarm signal according to described halt instruction.
The quench protection method of 21. superconducting magnets according to claim 18, it is characterized in that, the magnetic field intensity of the described superconducting magnet of the detection in described step S1 (112-115) is realized by the pressure detected in a cryostat (110); Whether the state of the described urgent quench switch (130) of the detection in described step S1 is position by detecting described urgent quench switch (130) or detects described heater (116-119) and run and realize.
The quench protection method of 22. superconducting magnets according to claim 13, is characterized in that, described alarm signal comprises at least one mode in sounding, luminescence and display reminding window.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023334A (en) * | 2017-12-27 | 2018-05-11 | 上海联影医疗科技有限公司 | Superconducting magnet quenches protection system and magnetic resonance system |
| WO2018206570A1 (en) * | 2017-05-08 | 2018-11-15 | Koninklijke Philips N.V. | Magnetic resonance imaging system with emergency quench |
| CN112904248A (en) * | 2021-01-22 | 2021-06-04 | 上海交通大学 | Quench detection device and quench detection method for uninsulated high-temperature superconducting coil |
| CN114783717A (en) * | 2022-06-17 | 2022-07-22 | 山东奥新医疗科技有限公司 | Magnetic resonance system and quench protection device of superconducting magnet thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008056314A1 (en) * | 2006-11-10 | 2008-05-15 | Koninklijke Philips Electronics N.V. | Detecting quench in a magnetic resonance examination system |
| CN101672558A (en) * | 2009-09-22 | 2010-03-17 | 青岛澳柯玛股份有限公司 | Refrigerator with timing and alarming functions during opening door |
| CN102866370A (en) * | 2011-07-06 | 2013-01-09 | 西门子(深圳)磁共振有限公司 | Superconducting magnet device and magnetic resonance imaging system |
| CN103091654A (en) * | 2011-10-31 | 2013-05-08 | 通用电气公司 | Single switch dump resistor ladder network for magnet quench protection |
| CN203026910U (en) * | 2012-12-26 | 2013-06-26 | 上海联影医疗科技有限公司 | Super-conduction emergency quenching device and system for magnetic resonance |
-
2013
- 2013-12-31 CN CN201310753038.1A patent/CN104753027B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008056314A1 (en) * | 2006-11-10 | 2008-05-15 | Koninklijke Philips Electronics N.V. | Detecting quench in a magnetic resonance examination system |
| CN101672558A (en) * | 2009-09-22 | 2010-03-17 | 青岛澳柯玛股份有限公司 | Refrigerator with timing and alarming functions during opening door |
| CN102866370A (en) * | 2011-07-06 | 2013-01-09 | 西门子(深圳)磁共振有限公司 | Superconducting magnet device and magnetic resonance imaging system |
| CN103091654A (en) * | 2011-10-31 | 2013-05-08 | 通用电气公司 | Single switch dump resistor ladder network for magnet quench protection |
| CN203026910U (en) * | 2012-12-26 | 2013-06-26 | 上海联影医疗科技有限公司 | Super-conduction emergency quenching device and system for magnetic resonance |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018206570A1 (en) * | 2017-05-08 | 2018-11-15 | Koninklijke Philips N.V. | Magnetic resonance imaging system with emergency quench |
| CN110612455A (en) * | 2017-05-08 | 2019-12-24 | 皇家飞利浦有限公司 | Magnetic resonance imaging system with emergency quench |
| RU2759388C2 (en) * | 2017-05-08 | 2021-11-12 | Конинклейке Филипс Н.В. | Magnetic resonance imaging system with emergency interruption of superconductivity |
| US11280862B2 (en) | 2017-05-08 | 2022-03-22 | Koninklijke Philips N.V. | Magnetic resonance imaging system with emergency quench |
| EP3407081A1 (en) * | 2017-05-22 | 2018-11-28 | Koninklijke Philips N.V. | Magnetic resonance imaging system with emergency quench |
| CN108023334A (en) * | 2017-12-27 | 2018-05-11 | 上海联影医疗科技有限公司 | Superconducting magnet quenches protection system and magnetic resonance system |
| CN112904248A (en) * | 2021-01-22 | 2021-06-04 | 上海交通大学 | Quench detection device and quench detection method for uninsulated high-temperature superconducting coil |
| CN114783717A (en) * | 2022-06-17 | 2022-07-22 | 山东奥新医疗科技有限公司 | Magnetic resonance system and quench protection device of superconducting magnet thereof |
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