CN109682505B - Cable force measuring device - Google Patents
Cable force measuring device Download PDFInfo
- Publication number
- CN109682505B CN109682505B CN201910101413.1A CN201910101413A CN109682505B CN 109682505 B CN109682505 B CN 109682505B CN 201910101413 A CN201910101413 A CN 201910101413A CN 109682505 B CN109682505 B CN 109682505B
- Authority
- CN
- China
- Prior art keywords
- coil
- cable
- measuring device
- force measuring
- core
- 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
- 230000005284 excitation Effects 0.000 claims abstract description 3
- 238000004804 winding Methods 0.000 claims description 5
- 239000004519 grease Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/12—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention belongs to the field of detection and monitoring of civil structures, and relates to a cable force measuring device which comprises a magnetic conduction bracket, wherein the magnetic conduction bracket comprises two coil cores which are arranged in parallel and four coil frames which are uniformly distributed on the two coil cores, and the four coil frames are fixedly arranged on the coil cores in a pairwise parallel manner; an excitation coil is arranged on each coil rack; a mounting clamp for fixing a cable is arranged between the two coil brackets on the single coil core, and the cable is fixed by the two mounting clamps; the measuring coil is arranged on the cable between the two mounting clamps; the invention can be suitable for adding the cable force detection system to the bridge which is already built, can also perform on-site measurement and calibration to the existing sensor, is convenient for on-site installation and disassembly, does not damage the existing bridge cable structure, is suitable for various bridge cables, and has a certain guiding effect on innovation of the prior art.
Description
Technical Field
The invention belongs to the field of detection and monitoring of civil structures, and relates to a cable force measuring device.
Background
The inhaul cable is a core stress member of cable bridges such as a cable-stayed bridge and a suspension bridge, and the stress condition plays an extremely important role in the safety of the whole structure of the bridge. The real-time measurement of the cable force of the inhaul cable is a main means for judging whether the bridge structure is safe or not. At present, a plurality of measuring methods such as vibrating wire type, optical fiber strain type, pressure gauge type, magnetic flux type and the like are developed, and the cable force is monitored and measured for a long time. However, various sensors based on the method generally need to be installed when a bridge is built, and once the bridge is built, the sensors are difficult to be subsequently installed. In addition, for long-term service bridges, after long-term operation, the sensor has accurate measurement performance, and disassembly calibration is difficult. Therefore, there is a strong need for a high-precision sensor that is suitable for later field installation, for adding a cable force monitoring system to an established bridge, and for field measurement calibration of an existing sensor.
Disclosure of Invention
In view of the above, the present invention aims to provide a cable force measuring device, so as to provide a high-precision sensor applicable to later field installation, to add a cable force monitoring system to an established bridge, and to perform field measurement calibration to an existing sensor.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The cable force measuring device comprises a magnetic conduction bracket, wherein the magnetic conduction bracket comprises two coil cores which are arranged in parallel and four coil frames which are uniformly distributed on the two coil cores, and the four coil frames are fixedly arranged on the coil cores in a pairwise parallel manner; an excitation coil is arranged on each coil rack; a mounting clamp for fixing a cable is arranged between the two coil brackets on the single coil core, and the cable is fixed by the two mounting clamps; the cable also comprises a measuring coil, wherein the measuring coil is arranged on the cable between the two mounting clamps.
Optionally, a connection frame for fixing the coil core is further included.
Optionally, two connecting frames are respectively arranged at two ends of the coil core, and one side of each connecting frame is fixedly arranged with one end of each coil core.
Optionally, the connecting frame, the coil core and the mounting clip form a magnetic conduction bracket.
Optionally, the mounting clip is formed by splicing two C-shaped bodies, and the two C-shaped bodies are respectively and fixedly arranged on one side of one coil frame facing the other coil frame arranged on the coil core; a through cavity for clamping the cable is formed between the two C-shaped bodies.
Optionally, the axial direction of the cable is a first direction, and the first plane is a plane perpendicular to the first direction; the projected cross-sectional diameter of the cavity in the first plane is greater than the projected cross-sectional diameter of the cable in the first plane.
Optionally, the measuring coil is wound on a cable from an enameled wire.
Optionally, the number of turns of the enameled wire is N, and N is more than or equal to 2 and less than or equal to 500.
Optionally, the measuring coil and the cable are also coated with magnetic conductive grease for reducing magnetic resistance.
Optionally, the device further comprises a current source for exciting the exciting coil and a measuring instrument for measuring the magnetic field change, wherein the current source and the measuring instrument are connected with the exciting coil.
Optionally, the current source is provided by the measuring instrument.
The invention has the beneficial effects that:
The invention can be suitable for adding the cable force detection system to the bridge which is already built, can also perform on-site measurement and calibration to the existing sensor, is convenient for on-site installation and disassembly, does not damage the existing bridge cable structure, is suitable for various bridge cables, and has a certain guiding effect on innovation of the prior art.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the overall structure of the present invention;
fig. 2 is a schematic diagram of the magnetic field direction during use of the present invention.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1-2, the reference numerals in the drawings indicate: the magnetic conduction bracket 1, the connecting frame 1a, the coil core 1b, the mounting clamp 1c, the coil frame 2, the exciting coil 3, the measuring coil 4 and the cable 5.
The invention relates to a cable force measuring device, which comprises a magnetic conduction bracket 1, wherein the magnetic conduction bracket 1 comprises two coil cores 1b which are arranged in parallel and four coil frames 2 which are uniformly arranged on the two coil cores 1b, and the four coil frames 2 are fixedly arranged on the coil cores 1b in pairs in parallel; an exciting coil 3 is arranged on each coil frame 2; a mounting clamp 1c for fixing a cable 5 is arranged between the two coil frames 2 on the single coil core 1b, and the cable 5 is fixed by the two mounting clamps 1 c; also included is a measuring coil 4, the measuring coil 4 being arranged on the cable 5 between the two mounting clips 1 c.
Optionally, a connection frame 1a for fixing the coil core 1b is further included; the two connecting frames 1a are respectively arranged at two ends of the coil core 1b, and one side of each connecting frame 1a is fixedly arranged with one end of each coil core 1 b; the connecting frame 1a, the coil core 1b and the mounting clamp 1c form a magnetic conduction bracket 1; the mounting clamp 1C is formed by splicing two C-shaped bodies, and the two C-shaped bodies are respectively fixedly arranged on one side of one coil frame 2 facing the other coil frame 2 arranged on the coil core 1 b; a through cavity for clamping the cable 5 is formed between the two C-shaped bodies; the axis direction of the cable 5 is a first direction, and the first plane is a plane perpendicular to the first direction; the projected cross-sectional diameter of the cavity in the first plane is greater than the projected cross-sectional diameter of the cable 5 in the first plane; the measuring coil 4 is formed by winding an enameled wire on a cable 5; the number of turns of the enameled wire is N, and N is more than or equal to 2 and less than or equal to 100; the measuring coil 4 and the cable 5 are also coated with magnetic conductive grease for reducing magnetic resistance; the device also comprises a current source for exciting the exciting coil 3 and a measuring instrument for measuring the magnetic field change, wherein the current source and the measuring instrument are connected with the exciting coil 3; the current source is provided by the meter.
The magnetic conduction bracket 1 in the invention is composed of two symmetrical parts of the occlusal cable 5, and is made of electrician pure iron material with high magnetic conductivity, and further, the bracket is divided into three parts, the mounting clamp 1C is composed of two semi-cylindrical C-shaped bodies, the inner diameter size of the C-shaped bodies is slightly larger than that of the cable 5, but the inner diameter size is not excessively large, so that an air gap is excessively wide; the coil core 1b is an iron core of the exciting coil 3, and the cross section area of the coil core is larger than that of the cable 5; the connecting frame 1a and the connecting piece of the coil core 1b may be designed as an integral structure with the coil core 1b, but in order to facilitate the installation of the exciting coil 3, the cross-sectional area thereof should be larger than that of the cable 5.
The coil frame 2 is made of insulating materials and is used for winding the exciting coil 3, so that the coil frame is convenient to be sleeved and mounted with the coil core 1 b; the exciting coil 3 is formed by winding enamelled wires wound on the coil frame 2, and has enough turns to generate a strong enough magnetic field to magnetize the cable 5; the measuring coil 4 is formed by winding an enameled wire on the cable 5 on site, and the number of turns is usually several to tens of turns, so that the measuring coil can have better signal output.
When the invention is used, the exciting coil 3 and the measuring coil 4 are connected with an external measuring instrument, and the adopted measuring instrument can be consistent with the traditional sleeve type instrument. When the exciting coils 3 are connected with the circuit of the measuring instrument, the direction of the magnetic field generated by each exciting coil 3 is ensured to be in the same direction in the cable 5. During field measurement and installation, the C-shaped body of the installation clamp 1C and the cable 5 are in relatively tight contact, and magnetic conductive grease can be smeared when necessary to reduce magnetic resistance.
During measurement, a current is supplied from the measuring instrument and when passing through the exciting coil 3, a magnetic field shown in fig. 2 is generated. The magnetic field is a varying magnetic field that is controlled by a measuring instrument. Wherein the magnetic field in the cable 5 can be obtained by detecting the current in the measuring coil 4. The magnetic properties of the material inside the cable 5 change when it is subjected to different tensile forces. When magnetized by an external magnetic field, the magnetic cable 5 has different magnetization characteristics, and the magnetization degree characteristic is obtained by measuring the induction circuit, so that the stress of the cable 5 can be obtained.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (6)
1. The utility model provides a cable force measuring device which characterized in that:
The magnetic conduction support comprises two coil cores which are arranged in parallel and four coil frames which are uniformly arranged on the two coil cores in a separated mode, and the four coil frames are fixedly arranged on the coil cores in a pairwise parallel mode; an excitation coil is arranged on each coil rack; a mounting clamp for fixing a cable is arranged between the two coil brackets on the single coil core, and the cable is fixed by the two mounting clamps; the measuring coil is arranged on the cable between the two mounting clamps;
The coil core fixing device also comprises a connecting frame for fixing the coil core;
the two connecting frames are respectively arranged at two ends of the coil core, and one side of each connecting frame is fixedly arranged with one end of each coil core;
the mounting clamp is formed by splicing two C-shaped bodies, and the two C-shaped bodies are respectively fixedly arranged on one side of one coil frame facing the other coil frame arranged on the coil core; a penetrating cavity for clamping the cable is formed between the two C-shaped bodies;
The axis direction of the cable is a first direction, and the first plane is a plane vertical to the first direction; the projected cross-sectional diameter of the cavity in the first plane is greater than the projected cross-sectional diameter of the cable in the first plane.
2. A cable force measuring device as claimed in claim 1, wherein:
the measuring coil is formed by winding an enameled wire on a cable.
3. A cable force measuring device as claimed in claim 2, wherein:
The number of turns of the enameled wire is N, and N is more than or equal to 2 and less than or equal to 500.
4. A cable force measuring device as claimed in claim 1, wherein:
and magnetic conductive grease for reducing magnetic resistance is also coated in the measuring coil and the cable.
5. A cable force measuring device as claimed in claim 1, wherein:
The device also comprises a current source for exciting the exciting coil and a measuring instrument for measuring the magnetic field change, wherein the current source and the measuring instrument are connected with the exciting coil.
6. A cable force measuring device as defined in claim 5, wherein:
the current source is provided by the meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910101413.1A CN109682505B (en) | 2019-01-31 | 2019-01-31 | Cable force measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910101413.1A CN109682505B (en) | 2019-01-31 | 2019-01-31 | Cable force measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109682505A CN109682505A (en) | 2019-04-26 |
| CN109682505B true CN109682505B (en) | 2024-05-17 |
Family
ID=66195319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910101413.1A Active CN109682505B (en) | 2019-01-31 | 2019-01-31 | Cable force measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109682505B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1161696A1 (en) * | 1983-11-02 | 1985-06-15 | Свердловский Ордена Трудового Красного Знамени Горный Институт Им.В.В.Вахрушева | Magnetoelastic transmitter |
| CN1952635A (en) * | 2006-11-14 | 2007-04-25 | 重庆大学 | Differential and temperature compensating type on-line testing method and system for bridge cable force |
| CN101055216A (en) * | 2007-05-28 | 2007-10-17 | 重庆交通大学 | Cable-stayed bridge cable force automatic monitoring method and device |
| CN101539469A (en) * | 2009-04-20 | 2009-09-23 | 重庆大学 | Intelligent cable capable of self-sensing cable force based on optical fiber strain sensing and measuring method thereof |
| CN102175359A (en) * | 2011-02-11 | 2011-09-07 | 重庆大学 | Passive magnetism monitoring method and device for wire rope/rod component stress |
| CN102628720A (en) * | 2012-04-13 | 2012-08-08 | 浙江省交通规划设计研究院 | Non-contact type inhaul cable force measuring device based on electromagnetic induction |
| CN103048066A (en) * | 2012-12-17 | 2013-04-17 | 江苏省交通科学研究院股份有限公司 | Monitoring method for prestress state of side slope anchor cable |
| CN104006909A (en) * | 2014-05-20 | 2014-08-27 | 宁波大学 | Cable force detecting method and cable force sensor using same |
| CN104062043A (en) * | 2014-06-11 | 2014-09-24 | 南昌航空大学 | Magnetoelastic cable force sensor capable of measuring in sliding mode in circumferential direction and measuring system thereof |
| CN203929290U (en) * | 2014-05-20 | 2014-11-05 | 宁波大学 | A kind of cable tension sensor that is applied to health monitoring |
| CN106092383A (en) * | 2016-06-23 | 2016-11-09 | 南昌航空大学 | Magnetic bullet cable force measurement method and restructural magnetic-elastic stress sensor thereof |
| CN106645387A (en) * | 2017-01-19 | 2017-05-10 | 北京工业大学 | Pulse magnetoelastic and magnetic flux leakage integrated detection system for detecting cable force and damage of stay cable |
| CN208443514U (en) * | 2018-09-17 | 2019-01-29 | 山东省建筑科学研究院 | Suo Li on-Line Monitor Device for steel cable bridge |
| CN209310956U (en) * | 2019-01-31 | 2019-08-27 | 重庆大学 | A kind of cable force measurement device |
-
2019
- 2019-01-31 CN CN201910101413.1A patent/CN109682505B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1161696A1 (en) * | 1983-11-02 | 1985-06-15 | Свердловский Ордена Трудового Красного Знамени Горный Институт Им.В.В.Вахрушева | Magnetoelastic transmitter |
| CN1952635A (en) * | 2006-11-14 | 2007-04-25 | 重庆大学 | Differential and temperature compensating type on-line testing method and system for bridge cable force |
| CN101055216A (en) * | 2007-05-28 | 2007-10-17 | 重庆交通大学 | Cable-stayed bridge cable force automatic monitoring method and device |
| CN101539469A (en) * | 2009-04-20 | 2009-09-23 | 重庆大学 | Intelligent cable capable of self-sensing cable force based on optical fiber strain sensing and measuring method thereof |
| CN102175359A (en) * | 2011-02-11 | 2011-09-07 | 重庆大学 | Passive magnetism monitoring method and device for wire rope/rod component stress |
| CN102628720A (en) * | 2012-04-13 | 2012-08-08 | 浙江省交通规划设计研究院 | Non-contact type inhaul cable force measuring device based on electromagnetic induction |
| CN103048066A (en) * | 2012-12-17 | 2013-04-17 | 江苏省交通科学研究院股份有限公司 | Monitoring method for prestress state of side slope anchor cable |
| CN104006909A (en) * | 2014-05-20 | 2014-08-27 | 宁波大学 | Cable force detecting method and cable force sensor using same |
| CN203929290U (en) * | 2014-05-20 | 2014-11-05 | 宁波大学 | A kind of cable tension sensor that is applied to health monitoring |
| CN104062043A (en) * | 2014-06-11 | 2014-09-24 | 南昌航空大学 | Magnetoelastic cable force sensor capable of measuring in sliding mode in circumferential direction and measuring system thereof |
| CN106092383A (en) * | 2016-06-23 | 2016-11-09 | 南昌航空大学 | Magnetic bullet cable force measurement method and restructural magnetic-elastic stress sensor thereof |
| CN106645387A (en) * | 2017-01-19 | 2017-05-10 | 北京工业大学 | Pulse magnetoelastic and magnetic flux leakage integrated detection system for detecting cable force and damage of stay cable |
| CN208443514U (en) * | 2018-09-17 | 2019-01-29 | 山东省建筑科学研究院 | Suo Li on-Line Monitor Device for steel cable bridge |
| CN209310956U (en) * | 2019-01-31 | 2019-08-27 | 重庆大学 | A kind of cable force measurement device |
Non-Patent Citations (2)
| Title |
|---|
| 基于逆磁致伸缩的索力传感器磁路分析与参数设计;姜建山 等;《仪器仪表学报》;第30卷(第4期);第738-743页 * |
| 磁致伸缩与磁弹一体化传感技术及其钢索检测应用研究;刘秀成;《中国博士电子期刊信息科技》;20140315;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109682505A (en) | 2019-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108680291B (en) | Cable force monitoring device based on fiber bragg grating sensor | |
| WO2013078981A1 (en) | Stress monitoring device of magneto-elastic and magneto-electric effect type | |
| WO2018014675A1 (en) | Securing apparatus for optical fibre temperature measurement probe of oil-immersed transformer | |
| CN106768503B (en) | A kind of magnetic-elastic stress sensor and cable cable force measurement system | |
| CN104122516B (en) | A kind of electrical sheet magnetostriction measurement system and method | |
| KR20120091724A (en) | Device for detecting lf and lma of wire rope | |
| CN109682505B (en) | Cable force measuring device | |
| US20150300988A1 (en) | Psc anchorage for monitoring a status change of ps steel member and psc girder using the same | |
| CN209310956U (en) | A kind of cable force measurement device | |
| CN109613316B (en) | High-precision Rogowski coil | |
| CN114088969B (en) | Light gas big gun flight piece speed sensor based on electromagnetic induction | |
| CN205789242U (en) | A kind of power cable semi-conductive layer resistivity test device | |
| CN209606599U (en) | A kind of clamp type magnetic flux sensor | |
| CN209992295U (en) | Miniature SMA wire comprehensive performance experimental device | |
| CN109752672B (en) | Clamping type magnetic flux sensor and application method thereof | |
| CN104165714A (en) | Axial force detection method and device for ferromagnetic slender component | |
| CN209606600U (en) | A kind of pin-connected panel magnetic flux transducer | |
| CN219891115U (en) | Complete device of superconducting cable defect simulation analysis test system | |
| CN217483725U (en) | Repairable split type magnetic flux sensor cable force measuring device | |
| CN219590496U (en) | Three-dimensional detection device for measuring motor magnetic field | |
| US20220075011A1 (en) | Tension measuring method | |
| CN114544044B (en) | Magnetic flux sensor detecting member and open magnetic flux sensor | |
| CN116858402A (en) | Spool formula electromagnetism bullet formula absolute stress monitoring devices convenient to prefabricate wire winding | |
| CN116593035A (en) | Split type electromagnetic spring type absolute stress monitoring device without on-site winding | |
| CN219656960U (en) | Simple pipeline calibration auxiliary device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |