CN101881815A - Magnet monitoring unit testing system and magnet simulator - Google Patents

Magnet monitoring unit testing system and magnet simulator Download PDF

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Publication number
CN101881815A
CN101881815A CN200910136199XA CN200910136199A CN101881815A CN 101881815 A CN101881815 A CN 101881815A CN 200910136199X A CN200910136199X A CN 200910136199XA CN 200910136199 A CN200910136199 A CN 200910136199A CN 101881815 A CN101881815 A CN 101881815A
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magnet
monitoring unit
switch
resistance
voltage
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CN101881815B (en
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庄泽标
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Siemens Shenzhen Magnetic Resonance Ltd
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Siemens Shenzhen Magnetic Resonance Ltd
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Abstract

The invention discloses a magnet monitoring unit testing system, which comprises a magnet monitoring unit to be tested and a magnet simulator, wherein the magnet simulator is used for simulating different operating states of a magnet and provides various conditions needed by the magnet monitoring unit for testing, and the magnet monitoring unit is used for testing various functions according to the conditions provided by the magnet simulator. The invention also discloses the magnet simulator. The system and the device provided by the invention can be applied to safely and conveniently test various functions of the magnet monitoring unit.

Description

A kind of magnet monitoring unit testing system and a kind of magnet emulation simulator
Technical field
The present invention relates to mr techniques, particularly a kind of magnet monitoring unit testing system and a kind of magnet emulation simulator.
Background technology
In the prior art, magnet monitoring unit (MSUP) is mainly used in the working condition of monitoring magnet, comprise when the magnet operate as normal, monitor the running parameter of magnet in real time, as the state of temperature, pressure, liquid helium level and each superconducting switch and resistance etc., and be presented in real time on the coupled main frame; When magnet breaks down, alarm and/or report to the police, and on main frame, eject prompt window, with any part in the prompting tester magnet fault has appearred, where should correspondingly check so that on-call maintenance etc.Wherein, alarm only is meant ejects prompt window on main frame, and warning then is meant not only will eject prompt window on main frame, and need carry out auditory tone cues by the warning box that links to each other with MSUP; In addition, take place under the situation of alarm, magnetic resonance system still can carry out sequence scanning; But in case report to the police, magnetic resonance system can not carry out the sequence surface sweeping again.
In order to finish monitoring better,, need test the software and hardware of MSUP and the MSUP software section of main frame in the development phase.Existing test is carried out in test cabinet (bay) lining usually, promptly utilizes actual magnet that the software and hardware of MSUP and the MSUP software section of main frame are tested.Above-mentioned test mainly comprises: when the magnet operate as normal, whether MSUP can normally monitor the various running parameters of magnet, and correctly be shown to it on main frame; When magnet breaks down, low excessively such as the liquid helium level, fall pressure in a quench, the magnet when excessive or too small, whether MSUP can in time alarm and report to the police; And whether the communication protocol between main frame and the MSUP is correct etc., such as, the pressure that MSUP monitors in the magnet is out of joint, and main frame points out the liquid helium level out of joint, illustrates that so then the communication protocol between main frame and the MSUP is incorrect.
But can there be certain problem in above-mentioned method of testing in actual applications, this be because:
Test MSUP is mainly as follows to the mode of the alarm of various faults in the magnet and warning function in the prior art, illustrate: the superconduction liquid helium acquisition sensor in the magnet is monitored the liquid helium level in the magnet in real time, and feed back to MSUP, after MSUP receives the liquid helium level (reality is and the corresponding magnitude of voltage of liquid helium level) of superconduction liquid helium acquisition sensor feedback, if can when the liquid helium level is lower than preset alarm threshold value and alarm threshold value, correctly alarm and report to the police, illustrate that then MSUP alarms the liquid helium level that exceeds requirement in the magnet and the function of reporting to the police is normal; For another example, pressure transducer in the magnet is monitored magnet pressure inside situation in real time, and feed back to MSUP, after MSUP receives the force value of pressure transducer feedback, if can when force value is below or above preset alarm threshold value and alarm threshold value, correctly alarm and report to the police, illustrate that then MSUP is normal to the function that exceeds required pressure in the magnet and alarm and report to the police.But in actual applications, magnet works in normal condition usually, and its liquid helium level and force value are all normal, that is to say, magnet can not provide test required fault condition, so cause test to carry out.
In addition, if careless manipulation in the existing test process falls the switch of a quench such as having touched the control magnet on the MSUP because of carelessness, so then can cause magnet quenching, thereby cause unnecessary liquid helium loss.Have, existing test can only be carried out in test cabinet again, thus the test duration can not get ensureing, very inconvenient concerning the tester.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of magnet monitoring unit testing system, can finish the test to the every function in the magnet monitoring unit safe ready.
Another object of the present invention is to provide a kind of magnet emulation simulator, use this magnet emulation simulator and can finish test safe ready the every function in the magnet monitoring unit.
For achieving the above object, the invention provides a kind of magnet monitoring unit testing system, comprising: a tested magnet monitoring unit and a magnet emulation simulator, wherein:
Described magnet emulation simulator is used to simulate the different operating state of magnet, for described magnet monitoring unit provides test required condition;
Described magnet monitoring unit is used for finishing according to the condition that described magnet emulation simulator provides the test of function.
Described magnet emulation simulator comprises: the horizontal analogue unit of liquid helium has a coupled liquid helium rotary switch, and comprises a resistance and variable resistor that is connected in series; Described resistance is used to prevent short circuit; Change described variable-resistance resistance by adjusting described liquid helium rotary switch, and then change the magnitude of voltage that is used for simulating the liquid helium level that is input in the described magnet monitoring unit.If described magnet monitoring unit can correctly be alarmed when the magnitude of voltage that receives meets alarm conditions, and described magnet monitoring unit can correctly be reported to the police when the magnitude of voltage that receives meets alert if, and then described test macro shows that described magnet monitoring unit is alarmed the liquid helium level that exceeds requirement in the magnet and the function of reporting to the police is normal.
Described magnet emulation simulator comprises: a pressure simulation unit has a coupled pressure rotary switch, and comprises a resistance and variable resistor that is connected in series; Described resistance is used to prevent short circuit; Change described variable-resistance resistance by adjusting described pressure rotary switch, and then change the magnitude of voltage that is used for simulating the magnet internal pressure that is input in the described magnet monitoring unit.If described magnet monitoring unit can correctly be alarmed when the magnitude of voltage that receives meets alarm conditions, and described magnet monitoring unit can correctly be reported to the police when the magnitude of voltage that receives meets alert if, and then described test macro shows that described magnet monitoring unit is normal to the function that exceeds required pressure in the magnet and alarm and report to the police.
Described magnet emulation simulator comprises that is fallen a quench analogue unit; A described quench analogue unit that falls comprises three separate resistance.Described magnet monitoring unit provides a default big electric current respectively for described three resistance, and receives described three magnitudes of voltage that a quench analogue unit returns that fall; If described magnet monitoring unit can correctly be reported to the police after receiving described three magnitudes of voltage, it is normal that then described test macro shows in the described magnet monitoring unit that the function of a quench falls in the control magnet.
Described magnet emulation simulator comprises an outfield interference shielding device analogue unit; Described outfield interference shielding device analogue unit comprises a resistance and switch that is connected in series.Described magnet monitoring unit is imported a predetermined current to described outfield interference shielding device analogue unit, and receives the magnitude of voltage of its feedback; If when described switch is set to open mode, described magnet monitoring unit can correctly be reported to the police, and then described test macro shows that the function of in the described magnet monitoring unit outfield interference shielding device fault being reported to the police is normal.
Described magnet emulation simulator comprises a pressure heater analogue unit; Described pressure heater analogue unit comprises a resistance and switch that is connected in series.Described magnet monitoring unit is imported a predetermined current to described pressure heater analogue unit, and receives the magnitude of voltage of its feedback; If when described switch is set to open mode, described magnet monitoring unit can correctly be reported to the police, and then described test macro shows that the function of in the described magnet monitoring unit pressure heater fault being reported to the police is normal.
Described magnet emulation simulator comprises a pressure switch analogue unit, and described pressure switch analogue unit comprises a switch.Described magnet monitoring unit is imported a prearranged signals to described pressure switch analogue unit, and receives the signal that described pressure switch analogue unit returns; If when described switch is set to open mode, described magnet monitoring unit can correctly be reported to the police, and then described test macro shows that the function of in the described magnet monitoring unit pressure switch fault being reported to the police is normal.
This test macro further comprises a regulated power supply, is used to described magnet monitoring unit that the supply voltage value that is equivalent to backup battery voltage is provided.If described magnet monitoring unit can correctly be alarmed when the supply voltage value that receives meets alarm conditions, and described magnet monitoring unit can correctly be reported to the police when the supply voltage value that receives meets alert if, and then described test macro shows that described magnet monitoring unit is alarmed the backup battery voltage that exceeds requirement and the function of reporting to the police is normal.
This test macro further comprises a hyper terminal, is used to upgrade described alarm conditions and alert if.
The present invention also provides a kind of magnet emulation simulator, and described magnet emulation simulator comprises with a kind of or combination in any in the lower unit:
The horizontal analogue unit of liquid helium has a coupled liquid helium rotary switch, and comprises a resistance and variable resistor that is connected in series; Described resistance is used to prevent short circuit; Change described variable-resistance resistance by adjusting described liquid helium rotary switch, and then change the magnitude of voltage that is used for simulating the liquid helium level;
The pressure simulation unit has a coupled pressure rotary switch, and comprises a resistance and variable resistor that is connected in series; Described resistance is used to prevent short circuit; Change described variable-resistance resistance by adjusting described pressure rotary switch, and then change the magnitude of voltage that is used for simulating the magnet internal pressure;
Fall a quench analogue unit, comprise three separate resistance, be used to receive a default big electric current, and return three magnitudes of voltage that increase along with described big electric current;
Outfield interference shielding device analogue unit comprises a resistance and a switch of being connected in series, is used to receive a predetermined current, and returns different magnitudes of voltage when closing with open mode when described switch is in;
The pressure heater analogue unit comprises the resistance and the switch that are connected in series, is used to receive a predetermined current, and is in when closing with open mode when described switch, returns different magnitudes of voltage;
The pressure switch analogue unit comprises a switch, is used to receive a prearranged signals, and returns the signal after the processing when described switch is in closed condition, does not return any signal when described switch is in open mode.
The magnet emulation simulator can also comprise a regulated power supply, is used for simulating the function of the reserve battery of magnet monitoring unit, for described magnet monitoring unit provides the supply voltage value that is equivalent to backup battery voltage.
As seen, adopt technical scheme of the present invention, utilize the magnet emulation simulator to simulate the circuit of magnet inside, state when promptly simulating the magnet operate as normal and the various faults that may occur, thus finish test to MSUP.Compared with prior art, scheme of the present invention can simulate required various fault conditions as required, thus every function that can full test MSUP, make MSUP when the actual monitored magnet is worked more accurately and reliably; In addition, replaced actual magnet with the magnet emulation simulator in the scheme of the present invention after, can avoid damage that magnet is caused, improved security; Have again, adopt scheme of the present invention after, will not test being confined in the test cabinet, but can be in other any occasion, such as in the laboratory of exploitation MSUP, testing, thereby guaranteed the test duration, and be convenient to the problem of finding in the test is in time revised.
Description of drawings
To make clearer above-mentioned and other feature and advantage of the present invention of those of ordinary skill in the art by describing the preferred embodiments of the present invention in detail below with reference to accompanying drawing, in the accompanying drawing:
Fig. 1 is the composition structural representation of MSUP test macro embodiment of the present invention;
Fig. 2 is the internal circuit configuration synoptic diagram of the horizontal analogue unit 10 of the liquid helium in the embodiment of the invention;
Fig. 3 is the internal circuit configuration synoptic diagram of the pressure simulation unit 20 in the embodiment of the invention;
Fig. 4 is the internal circuit configuration synoptic diagram that falls a quench analogue unit 30 in the embodiment of the invention;
Fig. 5 is the internal circuit configuration synoptic diagram of the outfield interference shielding device analogue unit 40 in the embodiment of the invention;
Fig. 6 is the internal circuit configuration synoptic diagram of the pressure heater analogue unit 50 in the embodiment of the invention;
Fig. 7 is the internal circuit configuration synoptic diagram of the pressure switch analogue unit 60 in the embodiment of the invention.
Embodiment
At problems of the prior art, the present invention proposes a kind of magnet emulation simulator, simulate the circuit of magnet inside with this magnet emulation simulator, state when promptly simulating the magnet operate as normal and the various faults that may occur, thus finish test to MSUP.
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Fig. 1 is the composition structural representation of MSUP test macro embodiment of the present invention.As shown in Figure 1, this system comprises: magnet emulation simulator 1, a MSUP 2 and a warning box 3.Wherein, magnet emulation simulator 1 is used to simulate the different operating state of magnet, thereby provides test required various conditions for MSUP 2; MSUP 2 is used for carrying out the test of every function according to the various conditions that magnet emulation simulator 1 provides.
Wherein, magnet emulation simulator 1 can specifically comprise a horizontal analogue unit 10 of liquid helium, and the horizontal analogue unit 10 of this liquid helium has a liquid helium rotary switch 11 that is connected with the horizontal analogue unit 10 of liquid helium.The horizontal analogue unit 10 of liquid helium is used to simulate the liquid helium level (0% to 100%) of magnet inside, promptly simulate the function of the superconduction liquid helium acquisition sensor in the magnet, form by a resistance 101 of connecting and a variable resistor 102 etc., as shown in Figure 2, Fig. 2 is the internal circuit configuration synoptic diagram of the horizontal analogue unit 10 of liquid helium in the embodiment of the invention; Wherein resistance 101 mainly plays a protective role, and prevents short circuit.
Liquid helium rotary switch 11 is positioned at the surface of magnet emulation simulator 1, its span can from 0% to 100%, the tester can change the resistance of the variable resistor 102 in the horizontal analogue unit 10 of liquid helium by rotating this liquid helium rotary switch 11, and then change is input to the magnitude of voltage among the MSUP 2, promptly utilize different magnitudes of voltage to simulate different liquid helium levels, 2 couples of MSUP exceed the function that the liquid helium level of requirement is alarmed and reported to the police with test.And set in advance among the MSUP 2 corresponding to the alarming threshold value of this test and alarm threshold value (such as, the alarming threshold value is 50%, the alarm threshold value is 40%); If so when the magnitude of voltage that receives meets alarm conditions, when promptly reaching the alarming threshold value, MSUP 2 can correctly alarm, and when the magnitude of voltage that receives meets alert if, MSUP 2 can correctly report to the police, and illustrates that then the liquid helium level that exceeds requirement in 2 pairs of magnets of MSUP is alarmed and the function of reporting to the police is normal.MSUP 2 how to alarm and warning is prior art, repeats no more.
As shown in Figure 1, also can further comprise a pressure simulation unit 20 in the magnet emulation simulator 1, this pressure simulation unit 20 has a pressure rotary switch 21 that is connected with pressure simulation unit 20.Pressure simulation unit 20 is used for simulating the function of the pressure transducer of magnet; form by a resistance 201 that is connected in series mutually and a variable resistor 202 etc.; Fig. 3 is the internal circuit configuration synoptic diagram of the pressure simulation unit 20 in the embodiment of the invention; wherein resistance 201 mainly plays a protective role, and prevents short circuit.
Pressure rotary switch 21 is positioned at the surface of magnet emulation simulator 1, the tester can change the resistance of the variable resistor 202 in the pressure simulation unit 20 by rotational pressure rotary switch 21, and then change is input to the magnitude of voltage among the MSUP 2, like this, can utilize different magnitudes of voltage to simulate the different pressures value of actual magnet inside, 2 couples of MSUP exceed the function that required pressure is alarmed and reported to the police with test.Set in advance alarming threshold value and alarm threshold value among the MSUP 2 corresponding to this test; If when the magnitude of voltage that receives meets alarm conditions, MSUP 2 can correctly alarm, and when the magnitude of voltage that receives meets alert if, MSUP 2 can correctly report to the police, and so then illustrates to exceed in 2 pairs of magnets of MSUP that required pressure is alarmed and the function of reporting to the police is normal.
In addition, MSUP 2 need possess the function that a quench falls in the ACTIVE CONTROL magnet, so that at some in emergency circumstances, during such as breaking out of fire, a quench falls in the ACTIVE CONTROL magnet, to reach the purpose of protection magnet.So, as shown in Figure 1, also need further comprise one in the magnet emulation simulator 1 and fall a quench analogue unit 30, this falls a quench analogue unit 30 and comprises three separate resistance (high-power resistance) resistance 301, resistance 302 and resistance 303, as shown in Figure 4, Fig. 4 is the internal circuit configuration synoptic diagram that falls a quench analogue unit 30 in the embodiment of the invention.As well known to those skilled in the art, in the prior art, if make magnet fall a quench, need to control simultaneously superconducting switch and two associated coil quench of magnet inside so, wherein, control superconducting switch quench be the superconducting switch well heater, and what control two coil quench is two coil quench well heaters, three resistance shown in Figure 4 then are respectively applied for simulates above-mentioned superconducting switch well heater and two coil quench well heaters.
When needs tests MSUP 2 quench function is fallen and the time, directly push and promptly fall a quench switch on the warning box 3, warning box 3 sends to MSUP 2 and falls a quench control command then, subsequently, MSUP2 provides a default big electric current respectively for resistance 301, resistance 302 and resistance 303, afterwards, MSUP 2 receives and falls three magnitudes of voltage that a quench analogue unit 30 returns.Magnet for reality, if fall a quench, the magnitude of voltage of its output will inevitably increase suddenly so, and in the embodiment of the invention owing to imported big electric current, so the magnitude of voltage of output also can increase suddenly, if so MSUP 2 can correctly report to the police after receiving three magnitudes of voltage that return, then to show among the MSUP2 that the function of a quench falls in the control magnet normal for test macro.
Except that above-mentioned three kinds of main tests, in the embodiment of the invention, also need to test the monitoring function of other most common failure in 2 pairs of magnets of MSUP, here other most common failure of being mentioned comprises outfield interference shielding device (EIS) fault, pressure heater (pressure heater) fault and pressure switch (pressureswitch) fault etc.So magnet emulation simulator 1 shown in Figure 1 also needs further to comprise one or more in the following analogue unit: outfield interference shielding device analogue unit 40, pressure heater analogue unit 50 and pressure switch analogue unit 60.
Outfield interference shielding device analogue unit 40 comprises a resistance 401 and switch 402 that is connected in series mutually, and as shown in Figure 5, Fig. 5 is the internal circuit configuration synoptic diagram of the outfield interference shielding device analogue unit 40 in the embodiment of the invention.Wherein, resistance 401 is used to simulate the EIS well heater, and switch 402 is used to simulate the state that cut-offs of EIS well heater.MSUP 2 is to outfield interference shielding device analogue unit 40 inputs one predetermined current, and receive the magnitude of voltage of its feedback, obviously, when switch 402 is in closed condition, the magnitude of voltage that MSUP 2 receives is one greater than 0 value, but when switch 402 is in open mode, the magnitude of voltage that MSUP 2 receives will be 0.If when switch 402 is set to open mode, MSUP 2 can correctly report to the police, and then test macro shows that the function of among the MSUP 2 outfield interference shielding device fault being reported to the police is normal.
Pressure heater analogue unit 50 comprises a resistance 501 and switch 502 compositions that are connected in series mutually; As shown in Figure 6, Fig. 6 is the internal circuit configuration synoptic diagram of the pressure heater analogue unit 50 in the embodiment of the invention.Wherein, resistance 501 is used for the simulated pressure well heater, and switch 502 is used for the state that cut-offs of simulated pressure well heater.Same principle, MSUP 2 is to pressure heater analogue unit 50 inputs one predetermined current, and receive the magnitude of voltage of its feedback, if when switch 502 is set to open mode, MSUP 2 can correctly report to the police, and then test macro shows that the function of among the MSUP 2 the pressure heater fault being reported to the police is normal.
Pressure switch analogue unit 60 comprises a switch 601, as shown in Figure 7.Fig. 7 is the internal circuit configuration synoptic diagram of the pressure switch analogue unit 60 in the embodiment of the invention.
MSUP 2 imports a prearranged signals to pressure switch analogue unit 60, and receives the signal that pressure switch analogue unit 60 returns; Obviously, if switch 601 is in closed condition, MSUP 2 must receive a signal that returns so, if but switch 601 is in open mode, then MSUP 2 will not receive the signal that returns, so, if when switch 601 is set to open mode, MSUP 2 can correctly report to the police, and then test macro shows that the function of among the MSUP 2 the pressure switch fault being reported to the police is normal.
Other possible fault is enumerated no longer one by one.
In addition, in actual applications, when MSUP 2 operate as normal, usually be its power supply by its primary power,, then enable reserve battery and power in case primary power breaks down, if the brownout of reserve battery, then MSUP 2 is cisco unity malfunction, so MSUP 2 also needs to possess the function that the voltage of reserve battery is alarmed and reported to the police, so that in time remind the tester to change or adopt other measure.As shown in Figure 1, can adopt a regulated power supply 4 to simulate reserve battery in the present embodiment, for magnet monitoring unit (2) provides the supply voltage value that is equivalent to backup battery voltage.Change the magnitude of voltage that is input among the MSUP 2 by adjusting regulated power supply 4, the function of alarming and reporting to the police with the magnitude of voltage that exceeds requirement in 2 pairs of reserve batteries of test MSUP.So, need in MSUP 2, to set in advance alarming threshold value and alarm threshold value corresponding to this test, determine then that supply voltage value when being input to MSUP 2 in meets and alarm and warning when requiring, whether MSUP can correctly alarm and report to the police, if then test macro shows among the MSUP 2 that the magnitude of voltage that reserve battery is exceeded requirement is alarmed and the function of reporting to the police is normal.
In actual applications, can it can be arranged in the magnet emulation simulator 1 with regulated power supply 4 as a separate equipment, specific implementation is not limit yet.
Have again, also can further comprise a hyper terminal 5 in the system shown in Figure 1, be used for alarming threshold value and alarm threshold value corresponding to each test that MSUP2 sets in advance are upgraded.In the present embodiment, each threshold value that sets in advance is stored in the information button (Ibutton) that is arranged in MSUP 2, so, hyper terminal 5 promptly is used for each threshold value that is kept at Ibutton is upgraded, so that whether alarm and the function such as warning of test MSUP 2 under different threshold values be still normal.
Need to prove that in actual applications, can further include a main frame (linking to each other with MSUP 2) and a portable equipment (linking to each other with magnet emulation simulator 1) etc. in the system shown in Figure 1, it is known in this field that its function is, and is not described.In addition, only for the circuit diagram after simplifying, in actual applications, may also need to carry out on this basis a series of distortion or refinement shown in Fig. 2~7, but as long as based on thought of the present invention, all should be within protection scope of the present invention.
In a word, adopt technical scheme of the present invention, utilize the magnet emulation simulator to simulate the circuit of magnet inside, state when promptly simulating the magnet operate as normal and the various faults that may occur, thus finish test to MSUP.Compared with prior art, scheme of the present invention can simulate required various fault conditions as required, thus every function that can full test MSUP, make MSUP when the actual monitored magnet is worked more accurately and reliably; In addition, replaced actual magnet with the magnet emulation simulator in the scheme of the present invention after, can avoid damage that magnet is caused, promptly improved security; Have again, adopt scheme of the present invention after, will not test being confined in the test cabinet, but can be in other any occasion, such as in the laboratory of exploitation MSUP, testing, thereby guaranteed the test duration, and be convenient to the problem of finding in the test is in time revised.
Need to prove that the foregoing description only is used to illustrate, and is not limited to technical scheme of the present invention.All any modifications of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. magnet monitoring unit testing system comprises: a tested magnet monitoring unit (2) and a magnet emulation simulator (1), wherein:
Described magnet emulation simulator (1) is used to simulate the different operating state of magnet, for described magnet monitoring unit (2) provides test required condition;
Described magnet monitoring unit (2) is used for finishing according to the condition that described magnet emulation simulator (1) provides the test of function.
2. test macro according to claim 1, it is characterized in that, described magnet emulation simulator (1) comprising: a horizontal analogue unit of liquid helium (10), have a coupled liquid helium rotary switch (11), and comprise a resistance (101) and a variable resistor (102) that is connected in series; Described resistance (101) is used to prevent short circuit; By adjusting the resistance that described liquid helium rotary switch (11) changes described variable resistor (102), and then change the magnitude of voltage that is used for simulating the liquid helium level that is input in the described magnet monitoring unit (2);
If described magnet monitoring unit (2) can correctly be alarmed when the magnitude of voltage that receives meets alarm conditions, and described magnet monitoring unit (2) can correctly be reported to the police when the magnitude of voltage that receives meets alert if, and then described test macro shows that described magnet monitoring unit (2) is alarmed the liquid helium level that exceeds requirement in the magnet and the function of reporting to the police is normal.
3. test macro according to claim 1, it is characterized in that, described magnet emulation simulator (1) comprising: a pressure simulation unit (20), have a coupled pressure rotary switch (21), and comprise a resistance (201) and a variable resistor (202) that is connected in series; Described resistance (201) is used to prevent short circuit; By adjusting the resistance that described pressure rotary switch (21) changes described variable resistor (202), and then change the magnitude of voltage that is used for simulating the magnet internal pressure that is input in the described magnet monitoring unit (2);
If described magnet monitoring unit (2) can correctly be alarmed when the magnitude of voltage that receives meets alarm conditions, and described magnet monitoring unit (2) can correctly be reported to the police when the magnitude of voltage that receives meets alert if, and then described test macro shows that described magnet monitoring unit (2) is normal to the function that exceeds required pressure in the magnet and alarm and report to the police.
4. test macro according to claim 1 is characterized in that, described magnet emulation simulator (1) comprises that is fallen a quench analogue unit (30); A described quench analogue unit (30) that falls comprises three separate resistance (301,302,303);
Described magnet monitoring unit (2) is that described three resistance (301,302,303) provide a default big electric current respectively, and receives described three magnitudes of voltage that a quench analogue unit (30) returns that fall; If described magnet monitoring unit (2) can correctly be reported to the police after receiving described three magnitudes of voltage, it is normal that then described test macro shows that the function of a quench falls in control magnet in the described magnet monitoring unit (2).
5. test macro according to claim 1 is characterized in that, described magnet emulation simulator (1) comprises an outfield interference shielding device analogue unit (40); Described outfield interference shielding device analogue unit (40) comprises a resistance (401) and a switch (402) that is connected in series;
Described magnet monitoring unit (2) is imported a predetermined current to described outfield interference shielding device analogue unit (40), and receives the magnitude of voltage of its feedback; If when described switch (402) when being set to open mode, described magnet monitoring unit (2) can correctly be reported to the police, then described test macro shows that the function of in the described magnet monitoring unit (2) outfield interference shielding device fault being reported to the police is normal.
6. test macro according to claim 1 is characterized in that, described magnet emulation simulator (1) comprises a pressure heater analogue unit (50); Described pressure heater analogue unit (50) comprises a resistance (501) and a switch (502) that is connected in series;
Described magnet monitoring unit (2) is imported a predetermined current to described pressure heater analogue unit (50), and receives the magnitude of voltage of its feedback; If when described switch (502) when being set to open mode, described magnet monitoring unit (2) can correctly be reported to the police, then described test macro shows that the function of in the described magnet monitoring unit (2) the pressure heater fault being reported to the police is normal.
7. test macro according to claim 1 is characterized in that, described magnet emulation simulator (1) comprises a pressure switch analogue unit (60), and described pressure switch analogue unit (60) comprises a switch (601);
Described magnet monitoring unit (2) is imported a prearranged signals to described pressure switch analogue unit (60), and receives the signal that described pressure switch analogue unit (60) returns; If when described switch (601) when being set to open mode, described magnet monitoring unit (2) can correctly be reported to the police, then described test macro shows that the function of in the described magnet monitoring unit (2) the pressure switch fault being reported to the police is normal.
8. test macro according to claim 1 is characterized in that, this test macro further comprises a regulated power supply (4), is used to described magnet monitoring unit (2) that the supply voltage value that is equivalent to backup battery voltage is provided;
If described magnet monitoring unit (2) can correctly be alarmed when the supply voltage value that receives meets alarm conditions, and described magnet monitoring unit (2) can correctly be reported to the police when the supply voltage value that receives meets alert if, and then described test macro shows that described magnet monitoring unit (2) is alarmed the backup battery voltage that exceeds requirement and the function of reporting to the police is normal.
9. according to each described test macro in the claim 2~8, it is characterized in that this test macro further comprises a hyper terminal (5), is used to upgrade described alarm conditions and alert if.
10. a magnet emulation simulator (1), described magnet emulation simulator (1) comprises with a kind of or combination in any in the lower unit:
The horizontal analogue unit of liquid helium (10) has a coupled liquid helium rotary switch (11), and comprises a resistance (101) and a variable resistor (102) that is connected in series; Described resistance (101) is used to prevent short circuit; By adjusting the resistance that described liquid helium rotary switch (11) changes described variable resistor (102), and then change the magnitude of voltage that is used for simulating the liquid helium level;
Pressure simulation unit (20) has a coupled pressure rotary switch (21), and comprises a resistance (201) and a variable resistor (202) that is connected in series; Described resistance (201) is used to prevent short circuit; By adjusting the resistance that described pressure rotary switch (21) changes described variable resistor (202), and then change the magnitude of voltage that is used for simulating the magnet internal pressure;
Fall a quench analogue unit (30), comprise three separate resistance (301,302,303), be used to receive a default big electric current, and return three magnitudes of voltage that increase along with described big electric current;
Outfield interference shielding device analogue unit (40) comprises the resistance (401) and the switch (402) that are connected in series, is used to receive a predetermined current, and is in when closing with open mode at described switch (402), returns different magnitudes of voltage;
Pressure heater analogue unit (50) comprises the resistance (501) and the switch (502) that are connected in series, is used to receive a predetermined current, and is in when closing with open mode at described switch (502), returns different magnitudes of voltage;
Pressure switch analogue unit (60) comprises a switch (601), is used to receive a prearranged signals, and returns a signal when being in closed condition when described switch (601), when described switch (601) does not return any signal when being in open mode.
11. magnet emulation simulator according to claim 10 is characterized in that, also comprises a regulated power supply (4), is used to described magnet monitoring unit (2) that the supply voltage value that is equivalent to backup battery voltage is provided.
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Cited By (2)

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CN105852862A (en) * 2016-03-24 2016-08-17 吉林大学 Ultrahigh-field-intensity intraoperative magnetic resonance scanning preparation device
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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10148462C1 (en) * 2001-10-01 2003-06-18 Siemens Ag Transmission method for an analog magnetic resonance signal and devices corresponding to it
DE10333796A1 (en) * 2003-07-24 2004-11-04 Siemens Ag Shim plate positioning method for magnetic resonance scanner, involves using magnetoresistive magnet simulator at installation site and measuring local magnetic fields to determine the desired shim characteristics and positioning
CN101349722B (en) * 2008-09-01 2010-12-08 中国舰船研究设计中心 Electromagnetic environment test method based on simulated data

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105852862A (en) * 2016-03-24 2016-08-17 吉林大学 Ultrahigh-field-intensity intraoperative magnetic resonance scanning preparation device
CN105852862B (en) * 2016-03-24 2018-10-26 吉林大学 Superelevation field strength intraoperative MRI scans preparation device
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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