CN104166152B - A kind of detect particle accelerator line abnormal from triggering method - Google Patents
A kind of detect particle accelerator line abnormal from triggering method Download PDFInfo
- Publication number
- CN104166152B CN104166152B CN201410407159.5A CN201410407159A CN104166152B CN 104166152 B CN104166152 B CN 104166152B CN 201410407159 A CN201410407159 A CN 201410407159A CN 104166152 B CN104166152 B CN 104166152B
- Authority
- CN
- China
- Prior art keywords
- signal
- coil
- triggering
- line
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Particle Accelerators (AREA)
Abstract
The present invention provide a kind of detect particle accelerator line abnormal from triggering method, including step S1,2 to button type beam position probeNThe electrode induced signal of individual electrode carries out signal condition, sampling and Digital Signal Processing, to obtain from coil to coil signal；Step S2, obtain from coil to coil signal in each cycle and signal；Calculate adjacent periods and signal difference, and judge whether this difference reaches the threshold value preset, reach then output the first triggering signal；Step S3, select the from coil to coil signal of corner electrode carry out differing from than and computing；Step S4, carries out discrete fourier computing to obtain line frequency spectrum to difference ratio and result, it is judged that whether the line frequency spectrum in preset frequency section is consistent with preset standard frequency spectrum, inconsistent then output the second triggering signal.The present invention is not when needing outer triggering signal, it is possible to known event and instantaneous accidental anomalous event accurately and timely detected, and offer triggers signal accordingly, greatly improves data acquisition efficiency and intelligent level.
Description
Technical field
The present invention relates to accelerator physics line diagnostic field, especially design a kind of detect particle accelerator line abnormal from triggering method.
Background technology
Beam measurement system is the very important ingredient of accelerator, and the machine of accelerator is studied and properly functioning all plays vital effect by it.Wherein, Beam position monitor system, as one of equipment most important in beam diagnostics, is mainly popped one's head in by the button type beam position of front end and beam position signal processor two parts of rear end is formed.
As it is shown in figure 1, beam position probe generally includes vacuum chamber and is symmetrically disposed in four electrode A, B, C and D of vacuum chamber both sides.Four electrode output induced signals when line is by described probe, the output of this induced signal carries out nursing one's health, sampling and digitized processing to beam position signal processor, it is thus achieved that the signal period is equal to line particle from coil to coil (Turn-by-turn) signal around the convolution cycle (i.e. from coil to coil cycle) that accelerator storage ring is run.
Beam position signal processor starts to catch induced signal after receiving outer triggering signal.When having known external event to occur, as injected particle (namely noting bundle) etc., external trigger signal can be provided；By inputting fixed frequency triggering signal for data acquisition time properly functioning.But, when particle accelerator runs the anomalous event that instantaneous accidental occurs, during as fallen the emergency case such as bundle, line frequency spectrum exception, the line data that the signal processor of external trigger pattern cannot catch before and after abnormal generation automatically carry out machine research for research worker, thus causing losing valuable data.To sum up, the dependence of external trigger signal is limited its using value on machine runs and studies by processor.
Therefore, if processor can pass through internal signal processing algorithm, catch all kinds of significant event, the operation exception event occurred including instantaneous accidental and known event, provide and trigger signal and store the data before and after event generation, to greatly improve beam diagnostics level and efficiency, improving accelerator operation performance for machine research worker provides strong help.
Summary of the invention
For above-mentioned technical problem, it is desirable to provide a kind of detection particle accelerator line reliable, efficient abnormal from triggering method, the emergency case such as bundle, line frequency spectrum be abnormal that facilitate user to find in time.
To achieve these goals, the present invention adopts the following technical scheme that
A kind of detect particle accelerator line abnormal from triggering method, comprise the following steps:
Step S1,2 to button type beam position probeNIndividual electrode electrode induced signal of output when line is by described probe carries out signal condition, sampling and Digital Signal Processing, to obtain described 2 respectivelyNThe from coil to coil signal that individual electrode is each corresponding, the from coil to coil cycle that the cycle of described from coil to coil signal is run in accelerator storage rings equal to line particle, wherein, described button type beam position probe includes a vacuum chamber and be arranged on described the 2 of described vacuum chamber both sides with being respectively symmetricallyNIndividual electrode, wherein, N is the natural number more than 1；
Step S2, obtains described 2 in each cycle successivelyNDescribed from coil to coil signal corresponding to individual electrode and signal；Calculate the difference of the described and signal of two adjacent periods, and judge whether described difference reaches the threshold value preset, if reaching described threshold value, then output the first triggering signal；
Step S3, select the described from coil to coil signal being in for a pair corresponding to the described electrode at diagonal angle carry out differing from than and computing, to obtain beam position information；And
Step S4, the result of the described difference ratio in described step S3 and computing is carried out discrete fourier computing to obtain line frequency spectrum, and judge that whether the described line frequency spectrum in preset frequency section is consistent with default standard frequency spectrum, if it is inconsistent, output the second triggering signal.
Further, also should include from triggering method:
Step S5, stores described 2NIndividual electrode is at the described first described from coil to coil signal triggering predetermined quantity corresponding before signal and/or second triggers signal output and after output.
Further, described step S2 includes: calculate two adjacent periods described from coil to coil signal described in and signal difference before, to described from coil to coil signal and signal carry out low-pass filtering.
In sum, frequency spectrum anomalous event can not only there is in the present invention, such as, from triggering when noting the known event such as bundle, Magnet excitation, and certainly can also trigger when falling the instantaneous accidental abnormal conditions such as bundle, thus having great convenience for the user discovery line abnormal conditions in time.Additionally, certainly triggered the from coil to coil signal of the predetermined quantity of front and back by storage, it is also possible to carry out machine research for research worker and then improve the machine runnability effective analytical data of offer.
Accompanying drawing explanation
Fig. 1 is the structural representation of the button type beam position probe that the present invention adopts；
Fig. 2 is the schematic diagram from triggering method that the present invention detects that particle accelerator line is abnormal.
Detailed description of the invention
Below in conjunction with accompanying drawing, provide presently preferred embodiments of the present invention, and be described in detail.
The present invention, abnormal the realizing from triggering method, employing beam position probe (as shown in Figure 1) and beam position signal processor (not shown) of detection particle accelerator line, as in figure 2 it is shown, the method comprises the following steps:
Step S1, when line is by popping one's head in, four electrode A, B, C and D export corresponding electrode induced signal respectively to beam position signal processor, after carrying out signal condition, sampling and Digital Signal Processing by beam position signal processor, obtaining the from coil to coil signal corresponding to each electrode respectively, namely from coil to coil signal refers to that the cycle is equal to the signal in the from coil to coil cycle that line particle runs in adding bundle device storage rings；
Step S2, obtain successively each corresponding from coil to coil signal of four electrodes in each from coil to coil cycle and signal, and each and signal are carried out low-pass filtering, to avoid HF noise signal to cause false triggering；Then two adjacent periods and signal difference is calculated, and judge whether this difference reaches the threshold value preset, if reaching threshold value, then output the first triggering signal, namely, when the reduction amount with signal abruptly reaches certain threshold value, illustrate that bundle event occurs, then sent the first triggering signal to point out Shu Yichang to upper-layer user.
Step S3, by beam position signal processor the from coil to coil signal being in corresponding to the electrode A at diagonal angle, C differed from than and computing, i.e. calculate (A-C)/(A+C), to obtain the beam position information comprising horizontal and vertical component.The reason of selection corner electrode A, C is herein: the data of two electrode A at diagonal angle, C sampling comprise line motion both horizontally and vertically simultaneously.
Obtain, than with computing, the technological means that beam position information belongs to commonly used in the art by difference, do not repeat them here.Should be appreciated that, may be used without electrode B in the present embodiment, the electrode from coil to coil signal of D output carry out differing from than and computing, and, when employing has the probe of more multi-electrode (such as 8 electrodes), such by the from coil to coil signal that the electrode at two diagonal angles is exported differ from than and computing to obtain beam position information.
Step S4, by beam position signal processor, the result of the difference ratio in step S3 and computing is carried out discrete fourier computing (preferred fast Fourier transform FFT) to obtain line frequency spectrum, then judge that whether the line frequency spectrum in preset frequency section is consistent with default standard frequency spectrum, if it is inconsistent, then illustrate that frequency spectrum is abnormal (to be such as likely to be caused, by note bundle etc., the spectral peak occurred when differing from properly functioning in operating point, or there is no signal in the position that should have peak), then frequency spectrum is abnormal to be occurred to point out to send the second triggering signal to upper-layer user.Wherein, discrete Fourier transform carries out always, to avoid missing anomalous event.It addition, preset frequency section herein is preferably to the more sensitive frequency band of Frequency spectrum ratio, for instance, it is set as the frequency band of left and right, operating point normalized spatial spectrum 0.05 scope.
Step S5, by beam position signal processor, four electrode A, B, C and D are stored in buffer FIFO at the first from coil to coil signal triggering predetermined quantity (respectively choosing about 1000 before and after such as) corresponding before signal and/or second triggers signal output and after output, thus carrying out machine research for research worker and then raising machine runnability provides effective analytical data.
As the above analysis, the present invention can export from triggering signal to upper-layer user when falling the events such as bundle, frequency spectrum be abnormal and occurring, thus eliminate the reliance on externally input and trigger signal, facilitates user and finds line abnormal conditions in time；Occur the data of front and back for customer analysis research further, it is also possible to preserve abnormal conditions.
Above-described, it is only presently preferred embodiments of the present invention, is not limited to the scope of the present invention, the above embodiment of the present invention can also make a variety of changes, for instance motor drives and can change handwheel driving into.Namely every claims according to the present patent application and description are made change simple, equivalent and modification, fall within the claims of the present invention.
Claims (3)
1. one kind detect particle accelerator line abnormal from triggering method, it is characterised in that should comprise the following steps from triggering method:
Step S1,2 to button type beam position probeNIndividual electrode electrode induced signal of output when line is by described probe carries out signal condition, sampling and Digital Signal Processing, to obtain described 2 respectivelyNThe from coil to coil signal that individual electrode is each corresponding, the from coil to coil cycle that the cycle of described from coil to coil signal is run in accelerator storage rings equal to line particle, wherein, described button type beam position probe includes a vacuum chamber and be arranged on described the 2 of described vacuum chamber both sides with being respectively symmetricallyNIndividual electrode, wherein, N is the natural number more than 1；
Step S2, obtains described 2 in each cycle successivelyNDescribed from coil to coil signal corresponding to individual electrode and signal；Calculate the difference of the described and signal of two adjacent periods, and judge whether described difference reaches the threshold value preset, if reaching described threshold value, then output the first triggering signal；
Step S3, select the described from coil to coil signal being in for a pair corresponding to the described electrode at diagonal angle carry out differing from than and computing, to obtain beam position information；And
Step S4, the result of the described difference ratio in described step S3 and computing is carried out discrete fourier computing to obtain line frequency spectrum, and judge that whether the described line frequency spectrum in preset frequency section is consistent with default standard frequency spectrum, if it is inconsistent, output the second triggering signal.
2. detection particle accelerator line according to claim 1 abnormal from triggering method, it is characterised in that also should include from triggering method:
Step S5, stores described 2NIndividual electrode is at the described first described from coil to coil signal triggering predetermined quantity corresponding before signal and/or second triggers signal output and after output.
3. detection particle accelerator line according to claim 1 abnormal from triggering method, it is characterized in that, described step S2 includes: calculate two adjacent periods described from coil to coil signal described in and signal difference before, to described from coil to coil signal and signal carry out low-pass filtering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407159.5A CN104166152B (en) | 2014-08-18 | 2014-08-18 | A kind of detect particle accelerator line abnormal from triggering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407159.5A CN104166152B (en) | 2014-08-18 | 2014-08-18 | A kind of detect particle accelerator line abnormal from triggering method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104166152A CN104166152A (en) | 2014-11-26 |
| CN104166152B true CN104166152B (en) | 2016-07-06 |
Family
ID=51910051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410407159.5A Active CN104166152B (en) | 2014-08-18 | 2014-08-18 | A kind of detect particle accelerator line abnormal from triggering method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104166152B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467423B (en) * | 2015-12-30 | 2018-03-27 | 中国科学院合肥物质科学研究院 | A kind of accelerator beam position diagnostic system and method based on Eight Diagrams limit probe distribution |
| CN109188502B (en) * | 2018-07-05 | 2020-02-07 | 中国科学技术大学 | Beam position monitor abnormity detection method and device based on self-encoder |
| CN113514868B (en) * | 2021-04-13 | 2022-05-17 | 中国科学院近代物理研究所 | Electrode assembly and detector for measuring beam position of high current accelerator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000137081A (en) * | 1998-10-30 | 2000-05-16 | Sumitomo Heavy Ind Ltd | Beam diagnostic probe of accelerator |
| KR20100046614A (en) * | 2008-10-27 | 2010-05-07 | 포항공과대학교 산학협력단 | Apparatus and method for monitoring beam position by using electro-optic effect |
| CN101964635A (en) * | 2010-10-27 | 2011-02-02 | 中国科学院上海应用物理研究所 | Automatic gain control method for digital signal |
| CN102096090A (en) * | 2010-12-08 | 2011-06-15 | 南京大学 | Beam signal monitoring device of electronic linear accelerator |
| CN102200586A (en) * | 2011-03-04 | 2011-09-28 | 中国原子能科学研究院 | Heavy ion beam diagnosis device for single particle test and related measurement method |
| CN103809198A (en) * | 2014-03-06 | 2014-05-21 | 中国科学院上海应用物理研究所 | Method for measuring particle accelerator beam position |
-
2014
- 2014-08-18 CN CN201410407159.5A patent/CN104166152B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000137081A (en) * | 1998-10-30 | 2000-05-16 | Sumitomo Heavy Ind Ltd | Beam diagnostic probe of accelerator |
| KR20100046614A (en) * | 2008-10-27 | 2010-05-07 | 포항공과대학교 산학협력단 | Apparatus and method for monitoring beam position by using electro-optic effect |
| CN101964635A (en) * | 2010-10-27 | 2011-02-02 | 中国科学院上海应用物理研究所 | Automatic gain control method for digital signal |
| CN102096090A (en) * | 2010-12-08 | 2011-06-15 | 南京大学 | Beam signal monitoring device of electronic linear accelerator |
| CN102200586A (en) * | 2011-03-04 | 2011-09-28 | 中国原子能科学研究院 | Heavy ion beam diagnosis device for single particle test and related measurement method |
| CN103809198A (en) * | 2014-03-06 | 2014-05-21 | 中国科学院上海应用物理研究所 | Method for measuring particle accelerator beam position |
Non-Patent Citations (3)
| Title |
|---|
| APPLICATION OF INDEPENDENT COMPONENT ANALYSIS FOR BEAM DIAGNOSIS;X. Huang et al.;《Proceedings of 2005 Particle Accelerator Conference》;20051231;第489-491页 * |
| 上海光源储存环工作点测量系统;冷用斌等;《强激光与粒子束》;20101031;第22卷(第10期);第2412-2416页 * |
| 束流轨道与相关环境参数的同步诊断技术;赖龙伟等;《强激光与粒子束》;20140131;第26卷(第1期);第015103-1至015103-5页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104166152A (en) | 2014-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9414761B2 (en) | QRS complex identification in electrocardiogram signals | |
| JP5536061B2 (en) | Partial discharge monitoring method | |
| CN106840637B (en) | Based on the GIS mechanical oscillation signal Time-Frequency Analysis Method for improving HHT algorithm | |
| Lomax et al. | Automatic picker developments and optimization: FilterPicker—A robust, broadband picker for real-time seismic monitoring and earthquake early warning | |
| CN105606977B (en) | Shelf depreciation PRPS spectrum recognition method and system based on hierarchical rule reasoning | |
| CN104166152B (en) | A kind of detect particle accelerator line abnormal from triggering method | |
| CN103431856B (en) | Method and the device of cardiac diagnosis lead is selected in multi-lead synchronous electrocardiosignal | |
| CN107101714A (en) | A kind of transformer health Evaluation method based on multi-measuring point vibration signal characteristics | |
| CN104658100B (en) | Bank note rolling wheel formula temporary storage part bank note method for detecting residue, device and ATM | |
| EP2228659A2 (en) | Occupancy measurement and triggering in frequency domain bitmaps | |
| JP2014171589A5 (en) | ||
| JPH09274095A (en) | Reactor output monitor | |
| JP2014169867A (en) | Partial discharge detection device and partial discharge detection method | |
| CN112494001B (en) | PPG signal quality evaluation method and device, wearable device and storage medium | |
| CN107811631A (en) | Electrocardiosignal method for evaluating quality | |
| CN102028460A (en) | Ventricular fibrillation signal sequence automatic-detection system | |
| Reddy et al. | Footstep detection and denoising using a single triaxial geophone | |
| TWI761742B (en) | Heart rate correction method and system, electronic apparatus and computer readable media | |
| CN109350031A (en) | A kind of photoplethysmographic signal feature point detecting method and device | |
| CN117871945A (en) | High-precision frequency measurement method, system, electronic equipment and storage medium | |
| CN109030010A (en) | One kind being used for engine fire detection method and device | |
| KR101510522B1 (en) | System for classification electrocardiogram signals | |
| CN103821750A (en) | Current-based method for monitoring and diagnosing stall speed and surge of ventilator | |
| CN107945844A (en) | Examining report data creation method | |
| CN107036703A (en) | Vibration monitor system for engine high-temperature casing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20141126 Assignee: SHANGHAI AIPUQIANG PARTICLE EQUIPMENT Co.,Ltd. Assignor: SHANGHAI INSTITUTE OF APPLIED PHYSICS, CHINESE ACADEMY OF SCIENCES Contract record no.: X2019310000019 Denomination of invention: Self-triggering method for detecting abnormal beams of particle accelerator Granted publication date: 20160706 License type: Exclusive License Record date: 20191113 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221207 Address after: 201800 Shanghai city Jiading District Road No. 2019 Patentee after: SHANGHAI INSTITUTE OF APPLIED PHYSICS, CHINESE ACADEMY OF SCIENCES Patentee after: Shanghai Alliance Investment Ltd. Address before: 201800 Shanghai city Jiading District Road No. 2019 Patentee before: SHANGHAI INSTITUTE OF APPLIED PHYSICS, CHINESE ACADEMY OF SCIENCES |
|
| TR01 | Transfer of patent right |