CN106019004A - Superconducting magnet monitor - Google Patents
Superconducting magnet monitor Download PDFInfo
- Publication number
- CN106019004A CN106019004A CN201610326108.9A CN201610326108A CN106019004A CN 106019004 A CN106019004 A CN 106019004A CN 201610326108 A CN201610326108 A CN 201610326108A CN 106019004 A CN106019004 A CN 106019004A
- Authority
- CN
- China
- Prior art keywords
- superconducting magnet
- circuit
- card
- monitor controller
- industrial computer
- 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
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2219/00—Thermometers with dedicated analog to digital converters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
The invention discloses a superconducting magnet monitor, which comprises a cabinet. The cabinet is internally provided with an industrial control computer board card, an acquisition card, a conditioning circuit, a GPS unit and a power source. The industrial control computer board card is electrically connected with the output end of the acquisition card; the input end of the acquisition card is electrically connected with the conditioning circuit; the conditioning circuit is electrically connected with a sensor and a refrigerating machine, which are arranged inside a superconducting magnet; the GPS unit is electrically connected with the industrial control computer board card; and the power source is electrically connected with the GPS unit and the conditioning circuit. The beneficial effects are that the monitor can remind a user of the safety operation state of the superconducting magnet in time, has a sensor parameter calibration function, can be connected with a mobile internet, and has the functions of data storage/uploading/analysis, and the functions of unattended operation and remote alarm and the like.
Description
Technical field
The invention belongs to superconducting apparatus field, be specifically related to a kind of superconducting magnet monitor controller.
Background technology
At a temperature of superconducting magnet is usually operated at 4.2K, magnet is internal uses liquid helium as cryogenic media.Liquid helium is a kind of
Expensive cryogenic media, in magnet, Dewar liquid helium capacity is generally at about 1000 liters, is worth about 200,000 yuans.Superconducting magnet
Work time be not absolute stable, in the case of having internal thermal agitation, the radiation of extraneous excessive heat, external magnetic field interference,
May trigger and quench.When quenching, liquid helium can be under quenching heater effect, and all vaporization evaporates, thus causes huge
Big economic loss.It addition, when magnet quenching liquid helium vaporizes, can exert heavy pressures on inside Dewar, although have pressure release to fill
Put, but this high pressure will be a kind of potential safety hazard.Therefore, in order to prevent economic loss, ensure equipment and the safety of personnel, business
Need instrument or electronic equipment in the superconducting magnet run, be used for gathering the various sensing datas within superconducting magnet,
The running state parameter of monitoring superconducting magnet, controls superconducting magnet internal pressure, reminds the safety fortune of user's superconducting magnet in time
Row state.
The scientific research institutions being engaged in superconducting magnet research typically use the operational factor of special measuring instruments monitoring superconducting magnet,
Such as piezometer, helium liquid level meter, thermometer etc..Its shortcoming is that equipment is arranged in superconducting magnet, needs closely to observe instrument
Data, operation complexity, record data efficiency is low.And the superconducting magnet of medical magnetic resonance system is typically set by special electronics
Standby, i.e. superconducting magnet monitor controller, monitor the operation of magnet.Superconducting magnet monitor controller is placed between shielding in outer equipment enclosure,
Easy to operate, reliable.
The superconducting magnet monitor controller specificity that each magnet manufacturer provides is the strongest.A kind of superconducting magnet is the most corresponding a kind of super
Magnetic conductor monitor controller, between each manufacturer, the most general between each model.Known at present both at home and abroad superconducting magnet equipment vendors and
Scientific research institutions do not have general superconducting magnet monitor controller, and function expansibility is poor, and each relevant unit individually develops and adds superconduction
The lead time of magnet and cost.
Summary of the invention
For the above-mentioned technical problem in correlation technique, the present invention proposes a kind of superconducting magnet monitor controller, on solving
State problem.
For realizing above-mentioned technical purpose, the technical scheme is that and be achieved in that:
A kind of superconducting magnet monitor controller, including cabinet, described cabinet inside be provided with card for industrial computer, capture card, modulate circuit,
GPS unit and power supply, described card for industrial computer electrically connects with the outfan of capture card, the input of described capture card and conditioning electricity
Road electrically connects, and described modulate circuit electrically connects the sensor within superconducting magnet and refrigeration machine, described GPS unit and industrial computer plate
Card electrical connection, described power supply electrically connects with GPS unit and modulate circuit respectively.
Further, described modulate circuit includes that the B0 coil electrically connected with the sensor within superconducting magnet controls electricity
Road, helium liquid level gauging circuit, temperature measuring circuit, pressure measxurement and control circuit, promptly quench control circuit and single-chip microcomputer is adopted
Collector, described single-chip microcomputer Acquisition Circuit is electrically connected with card for industrial computer by serial line interface RS232, and this single-chip microcomputer gathers electricity
Road is also electrically connected with the refrigeration machine status monitoring circuit for detecting the refrigeration machine within superconducting magnet, supply voltage prison
Slowdown monitoring circuit and cable connection state observation circuit.
Further, described card for industrial computer is electrically connected with LCD touch screen.
Further, described modulate circuit is electrically connected with buzzer and display lamp.
Further, the connection of described GPS unit has remote server and mobile device, described mobile device is mobile phone.
Further, described card for industrial computer is electrically connected with the outfan of capture card by pci interface or USB interface.
Further, described GPS unit is electrically connected with card for industrial computer by serial line interface.
Further, described capture card is provided with the digital I/O passage more than 16 tunnels, the A/D interface more than 8 tunnels and
DA interface more than 2 tunnels.
Further, 220V alternating current is converted into the output of 12V, 15V ,-15V, 48V unidirectional current by described power supply.
Beneficial effects of the present invention: remind the safe operation state of user's superconducting magnet in time, and there is sensor parameters
Calibration function, can demarcate the sensor parameters of different manufacturers；The superconducting magnet of compatible different vendor；By embedding
Formula operating system, microcomputer platform, touch screen interface so that design great intellectuality and extensibility；By GPRS mould
Block, can connect mobile internet, has data and stores/upload the functions such as/analytic function, Unattended remote warning.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only some enforcements of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtains according to these accompanying drawings
Obtain other accompanying drawing.
Fig. 1 is the structural representation of superconducting magnet monitor controller described according to embodiments of the present invention；
Fig. 2 is the use flow chart of superconducting magnet monitor controller described according to embodiments of the present invention.
Wherein:
1, card for industrial computer；2, capture card；3, GPS unit；4, power supply；5, modulate circuit；6, LCD touch screen；7, buzzer；8、
Display lamp；9, remote server；10, mobile device；11, cabinet；12, sensor；13, refrigeration machine；51, B0 coil controls electricity
Road；52, helium liquid level gauging circuit；53, temperature measuring circuit；54, pressure measxurement and control circuit；55, control electricity is promptly quenched
Road；56, single-chip microcomputer Acquisition Circuit；57, refrigeration machine status monitoring circuit；58, supply voltage monitoring circuit；59, cable connects shape
State observation circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained, broadly fall into present invention protection
Scope.
As it is shown in figure 1, a kind of superconducting magnet monitor controller described according to embodiments of the present invention, including cabinet 11, described machine
Case 11 is internally provided with card for industrial computer 1, capture card 2, modulate circuit 5, GPS unit 3 and power supply 4, described card for industrial computer 1 with
The outfan electrical connection of capture card 2, the input of described capture card 2 electrically connects with modulate circuit 5, and described modulate circuit 5 is electrically connected
Connecing the sensor 12 within superconducting magnet and refrigeration machine 13, conditioning circuit module 5 one aspect accepts to come from the software of capture card 2
Control signal, is on the other hand acquired superconducting magnet sensor signal and nurses one's health, giving capture card 2 and process.Conditioning
Circuit module 5 is the nucleus module of superconducting magnet monitor controller hardware circuit, and described GPS unit 3 electrically connects with card for industrial computer 1,
Described power supply 4 electrically connects with GPS unit 3 and modulate circuit 5 respectively, described power supply 4 220V alternating current is converted into 12V, 15V ,-
15V, 48V unidirectional current exports.
Described modulate circuit 5 includes B0 coil control circuit 51, the helium electrically connected with the sensor 12 within superconducting magnet
Liquid level gauging circuit 52, temperature measuring circuit 53, pressure measxurement and control circuit 54, promptly quench control circuit 55 and single-chip microcomputer
Acquisition Circuit 56, described single-chip microcomputer Acquisition Circuit 56 is electrically connected with card for industrial computer 1 by serial line interface RS232, and this monolithic
Machine Acquisition Circuit 56 is also electrically connected with the refrigeration machine status monitoring circuit for detecting the refrigeration machine within superconducting magnet
57, supply voltage monitoring circuit 58 and cable connection state observation circuit 59.
Described card for industrial computer 1 is electrically connected with LCD touch screen 6, and described modulate circuit 5 is electrically connected with buzzer 7 and instruction
Lamp 8, described GPS unit 3 connects remote server 9 and mobile device 10, and described mobile device 10 is mobile phone.
Described card for industrial computer 1 is electrically connected with the outfan of capture card 2 by pci interface or USB interface, and described GPS is mono-
Unit 3 is electrically connected with card for industrial computer 1 by serial line interface.
It is provided with the digital I/O passage more than 16 tunnels, the A/D interface more than 8 tunnels on described capture card 2 and is more than 2 tunnels
DA interface.
Understand the technique scheme of the present invention for convenience, below by way of above-mentioned to the present invention in specifically used mode
Technical scheme is described in detail.
As in figure 2 it is shown, the using method of a kind of superconducting magnet monitor controller, comprise the steps:
S1, start monitor controller and boot up test；
S2, detect start normal time, enter Infinite Cyclic, otherwise quit a program；
S3, card for industrial computer 1 obtain time data, determine the need for starting respective modules according to time interval and test；
If S4 time interval is correct, then start corresponding modulate circuit 5；
After S5, modulate circuit 5 are measured, LCD touch screen 6 show renewal, carries out fault diagnosis simultaneously, it is judged that each ginseng
Number is the most normal；
Under S6, abnormal conditions, carry out short message prompt by LCD touch screen 6, buzzer 7 and mobile phone；
Wherein, the modulate circuit in described step S4 includes B0 coil control circuit 51, helium liquid level gauging circuit 52, temperature survey
Circuit 53, pressure measxurement and control circuit 54, promptly quench control circuit 55 and single-chip microcomputer Acquisition Circuit 56, described pressure measxurement
And control circuit sampling in 54 1 minutes is once, B0 coil control circuit 51 and the detection of helium liquid level gauging circuit 52 twenty four hours
Once, described temperature measuring circuit 53, promptly quench control circuit 55 and single-chip microcomputer Acquisition Circuit 56 1 hours monitoring once.
The implementation of each measurement function of explanation superconducting magnet the most one by one:
The workflow of B0 coil control circuit: card for industrial computer sends out 0, capture card P0.0 port sends low level, B0 coil control
Circuit processed works, and starts B0 coil heats；After waiting 1 second, the capture card AD single-ended sample mode of port AI.3 is measured and is returned
Voltage, obtain B0 and add the connection status of electric heating cable；After keeping 40 seconds, card for industrial computer sends out 1, and capture card P0.0 port is sent out
Go out high level, stop B0 heating.
The workflow of helium liquid level gauging circuit: card for industrial computer sends measuring command, modulate circuit helium liquid level gauging
Constant-current source is started working, the helium liquid level meter that constant-current source is loaded in superconducting magnet, obtains the voltage proportional to helium liquid level
Signal, voltage signal is connected to the AD conversion port of capture card, is calculated helium liquid level by monitor controller in house software；Helium
The constant-current source of liquid level gauging is adjustable, thus adapts to the helium liquid level meter of different vendor；Such as: card for industrial computer sends out 0, capture card P0.1
Port sends low level, starts helium liquid level gauging；After waiting 2 seconds, capture card AD port AI.0 and AI.8 difference sampling side
Formula measures helium liquid level sensor return voltage: after continuing to measure 2 seconds, card for industrial computer sends out 1, and capture card P0.1 port sends
High level, stops helium liquid level gauging.
Temperature measuring circuit workflow: can carry out multichannel measurement signal (such as 8 tunnel), measures temperature range from 4.2K
～300K scope.Card for industrial computer sends temperature survey order, gates a road temperature, modulate circuit temperature survey by capture card
Constant-current source work, the thermometer being loaded in superconducting magnet, obtain the voltage signal with temperature proportional, be connected to capture card
AD conversion port, be calculated the measurement point temperature within superconducting magnet by monitor controller in house software；Thermometric perseverance
Stream source is adjustable, such that it is able to adapt to the temperature sensor of different vendor；The such as present invention can measure 8 tunnel temperature channel, industry control
Machine board sends channel number, 3 railway digital mouth (P0.3, P0.4, P0.5) output channels number of capture card, through 3-8 decoder, choosing
Logical temperature channel；Card for industrial computer sends out 1, and capture card P0.6 port output high level, start-up temperature is measured；Wait 500 milliseconds with
After, difference sample mode collecting temperature sensor voltage, wherein, AD port AI.1 and AI.9 measures 4.2K warm area, AI.6 and
AI.14 measures more than 20K warm area；After test constantly 2 seconds, stop measuring.
Pressure measxurement and control circuit workflow: be connected to modulate circuit by superconducting magnet sensor, through signal condition
After, receive capture card AD conversion interface, be calculated superconducting magnet liquid helium chamber internal pressure by monitor controller in house software；According to
The state of pressure, decides whether output pressure heating signal；When output pressure heating signal, conditioning plate output and Stress control
The heating voltage that signal is proportional, is controlled the pressure in superconducting magnet liquid helium Dewar；Pressure measxurement is carried out in real time,
Need not card for industrial computer and send measurement control order.Capture card AD port AI.2 and AI.10 difference sample mode measure pressure
Signal, the single-ended sample mode of AI.4 measures the connection status of pressure transducer cable；Card for industrial computer is according to pressure differential, it is judged that be
No needs is heated.Capture card port AO.0 exports analog control signal, the voltage that modulate circuit output is proportional to control signal
Signal is to the pressure heater of superconducting magnet.
Promptly quench control circuit workflow: when press promptly quench button time, the time-delay relay of modulate circuit connects
Logical, DC source is added to quench on heating tape, makes the superconducting coil within superconducting magnet quench, and is quickly dropped by superconducting coil current
Getting off, monitor controller in house software can record this process, and forms journal file；When modulate circuit detects that quenching button presses
After Xia, quench heating tape to superconducting magnet and power, and issue card for industrial computer by promptly quenching state by capture card.
Single-chip microcomputer Acquisition Circuit: the refrigeration machine of superconducting magnet, with running status interface, can obtain refrigeration machine from interface
Power supply status, temperature and pressure signal.After signal is delivered to single-chip microcomputer process, it is sent to industrial computer, warp by serial line interface
Crossing software processes in monitor controller, obtain refrigeration machine state, instruction running status is normal or sends alarm.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. a superconducting magnet monitor controller, including cabinet (11), it is characterised in that: described cabinet (11) is internally provided with industrial computer
Board (1), capture card (2), modulate circuit (5), GPS unit (3) and power supply (4), described card for industrial computer (1) and capture card
(2) outfan electrical connection, the input of described capture card (2) electrically connects with modulate circuit (5), described modulate circuit (5) electricity
Connecting the sensor (12) within superconducting magnet and refrigeration machine (13), described GPS unit (3) electrically connects with card for industrial computer (1),
Described power supply (4) electrically connects with GPS unit (3) and modulate circuit (5) respectively.
Superconducting magnet monitor controller the most according to claim 1, it is characterised in that: described modulate circuit (5) includes and superconduction
B0 coil control circuit (51) that sensor (12) within magnet electrically connects, helium liquid level gauging circuit (52), temperature survey electricity
Road (53), pressure measxurement and control circuit (54), promptly quench control circuit (55) and single-chip microcomputer Acquisition Circuit (56), described list
Sheet machine Acquisition Circuit (56) is electrically connected with card for industrial computer (1) by serial line interface RS232, and this single-chip microcomputer Acquisition Circuit (56)
Also it is electrically connected with refrigeration machine status monitoring circuit (57), supply voltage monitoring circuit (58) and cable connection state observation circuit
(59).
Superconducting magnet monitor controller the most according to claim 1, it is characterised in that: described card for industrial computer (1) is electrically connected with
LCD touch screen (6).
Superconducting magnet monitor controller the most according to claim 1, it is characterised in that: described modulate circuit (5) is electrically connected with honeybee
Ring device (7) and display lamp (8).
Superconducting magnet monitor controller the most according to claim 1, it is characterised in that: described GPS unit (3) connects remotely clothes
Business device (9) and mobile device (10).
Superconducting magnet monitor controller the most according to claim 5, it is characterised in that: described mobile device (10) is mobile phone.
Superconducting magnet monitor controller the most according to claim 3, it is characterised in that: described card for industrial computer (1) is connect by PCI
Mouth or USB interface electrically connect with the outfan of capture card (2).
Superconducting magnet monitor controller the most according to claim 5, it is characterised in that: described GPS unit (3) passes through serial line interface
Electrically connect with card for industrial computer (1).
Superconducting magnet monitor controller the most according to claim 1, it is characterised in that: it is provided with on described capture card (2) and is more than
The digital I/O passage on 16 tunnels, the A/D interface more than 8 tunnels and the DA interface more than 2 tunnels.
Superconducting magnet monitor controller the most according to claim 1, it is characterised in that: 220V alternating current is turned by described power supply (4)
Change the output of 12V, 15V ,-15V, 48V unidirectional current into.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316885 | 2015-06-10 | ||
| CN2015203983211 | 2015-06-10 | ||
| CN201520398321 | 2015-06-10 | ||
| CN2015103168850 | 2015-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106019004A true CN106019004A (en) | 2016-10-12 |
Family
ID=57098522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610326108.9A Pending CN106019004A (en) | 2015-06-10 | 2016-05-17 | Superconducting magnet monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106019004A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455341A (en) * | 2019-08-27 | 2019-11-15 | 中国科学院合肥物质科学研究院 | A kind of superconducting magnet monitor |
| CN112762999A (en) * | 2021-01-19 | 2021-05-07 | 陈猛 | Monitoring device capable of monitoring magnetic resonance work and parameter data in real time |
| CN113012888A (en) * | 2021-03-18 | 2021-06-22 | 上海辰光医疗科技股份有限公司 | Multifunctional monitoring system for superconducting magnet |
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| JPH06283329A (en) * | 1993-03-29 | 1994-10-07 | Mitsubishi Electric Corp | Superconducting magnet |
| JP2001176721A (en) * | 1999-12-15 | 2001-06-29 | Hitachi Ltd | Freezing mixture monitoring equipment for superconducting magnet |
| CN102346239A (en) * | 2011-04-18 | 2012-02-08 | 中国科学院等离子体物理研究所 | Quenching detection system used in superconducting magnet under pulsed field and method thereof |
| 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 |
| CN103292926A (en) * | 2013-05-18 | 2013-09-11 | 淮阴师范学院 | Device and method for acquiring excitation data of superconducting magnets |
| CN104198803A (en) * | 2014-09-04 | 2014-12-10 | 中国科学院电工研究所 | High-temperature superconducting magnet online monitoring system |
-
2016
- 2016-05-17 CN CN201610326108.9A patent/CN106019004A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06283329A (en) * | 1993-03-29 | 1994-10-07 | Mitsubishi Electric Corp | Superconducting magnet |
| JP2001176721A (en) * | 1999-12-15 | 2001-06-29 | Hitachi Ltd | Freezing mixture monitoring equipment for superconducting magnet |
| CN102346239A (en) * | 2011-04-18 | 2012-02-08 | 中国科学院等离子体物理研究所 | Quenching detection system used in superconducting magnet under pulsed field and method thereof |
| 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 |
| CN103292926A (en) * | 2013-05-18 | 2013-09-11 | 淮阴师范学院 | Device and method for acquiring excitation data of superconducting magnets |
| CN104198803A (en) * | 2014-09-04 | 2014-12-10 | 中国科学院电工研究所 | High-temperature superconducting magnet online monitoring system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455341A (en) * | 2019-08-27 | 2019-11-15 | 中国科学院合肥物质科学研究院 | A kind of superconducting magnet monitor |
| CN112762999A (en) * | 2021-01-19 | 2021-05-07 | 陈猛 | Monitoring device capable of monitoring magnetic resonance work and parameter data in real time |
| CN113012888A (en) * | 2021-03-18 | 2021-06-22 | 上海辰光医疗科技股份有限公司 | Multifunctional monitoring system for superconducting magnet |
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Application publication date: 20161012 |