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CN109738522A - A kind of handheld electromagnetic absorption damage check instrument for steel building flaw detection - Google Patents

A kind of handheld electromagnetic absorption damage check instrument for steel building flaw detection Download PDF

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Publication number
CN109738522A
CN109738522A CN201910051416.9A CN201910051416A CN109738522A CN 109738522 A CN109738522 A CN 109738522A CN 201910051416 A CN201910051416 A CN 201910051416A CN 109738522 A CN109738522 A CN 109738522A
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CN
China
Prior art keywords
damage check
detector
control module
unit
sucked type
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Pending
Application number
CN201910051416.9A
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Chinese (zh)
Inventor
艾青林
宋国正
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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Priority to CN201910051416.9A priority Critical patent/CN109738522A/en
Publication of CN109738522A publication Critical patent/CN109738522A/en
Pending legal-status Critical Current

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Abstract

A kind of handheld electromagnetic absorption damage check instrument for steel building flaw detection, including detector shell, control module and electromagnetic adsorption damage check module, the detector shell includes a lower plate, a upper cover, a handle, a LCD display, a power switch and a detection switch;The electromagnetic adsorption damage check module includes a sucked type electromagnet, a sleeve, an acceleration transducer, a spring, the first fixinig plate and the second fixinig plate;The control module includes AD conversion unit, main control unit, wireless communication unit, photoelectric coupling unit for promoting inhibition and solid-state relay.The present invention is small in size, it can be convenient testing staff and be carried to area to be tested, the work of steel construction damage check is carried out to measured surface by the electromagnetic adsorption damage check module of detector again, collected data are transferred to server by wireless communication to analyze, have the characteristics that detection efficiency is high, small in size, portable, environmental suitability is strong.

Description

A kind of handheld electromagnetic absorption damage check instrument for steel building flaw detection
Technical field
The invention belongs to steel construction damage check fields, and in particular to a kind of hand-held electricity for steel building flaw detection Magnetic suck damage check instrument.
Background technique
As economic construction of China is grown rapidly, various complex large-sized steel buildings are continuously emerged.Wherein, steel construction quilt It is widely used in large bridge, large space structure, skyscraper, Large-scale Railway transport hub, petroleum pipeline, nuclear power station etc.. Since these steel buildings are more demanding for structural health, reinforce steel building health detection, is tieed up in time Repairing is particularly important.
What application was wide at present is that specific position places wired or wireless sensor node, this detection side under construction Method is since sensor position is fixed, and there are check frequencies and difficult in maintenance, needs to spend a large amount of manpower and material resources cost;It is another Kind detection method is to will test device using mobile sensor node and combine with mobile robot, this method overcomes The deficiency of fixed sensor, but for some complicated buildings, intelligent robot is also not easy to reach, it is still necessary to manually into Row adjunctive program.Therefore, a kind of steel building damage check easy to carry, detection efficiency is high, environmental suitability is strong is developed Equipment seems particularly critical.
Summary of the invention
In order to overcome traditional steel building detection mode it is erroneous for installation, testing cost is high the deficiencies of, the present invention provide A kind of handheld electromagnetic adsorbs damage check instrument, and the detector is small in size, can be convenient testing staff and be carried to area to be detected Domain, then the work of steel construction damage check is carried out to measured surface by the electromagnetic adsorption damage check module of detector, pass through nothing Collected data are transferred to server and analyzed by line communication, high, small in size, the portable, environment with detection efficiency The features such as adaptable.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of handheld electromagnetic absorption damage check instrument for steel building flaw detection, including detector shell, control Module and electromagnetic adsorption damage check module, the detector shell include a lower plate, a upper cover, a handle, one LCD display, a power switch and a detection switch;The electromagnetic adsorption damage check module includes a sucked type electricity Magnet, a sleeve, an acceleration transducer, a spring, the first fixinig plate and the second fixinig plate;The control module packet Include AD conversion unit, main control unit, wireless communication unit, photoelectric coupling unit for promoting inhibition and solid-state relay.
Further, in the detector shell, the lower plate is for installing control module, battery and electromagnetic adsorption damage inspection Module is surveyed, upper cover and lower plate are connected by screw to fixation;Handle is fixed by screws on detector on lid, and detector upper cover is also LCD display, power switch and detection switch are laid, LCD display is connected with control module, for showing the work of detector Make information, power switch controls the power on/off of detector, and detection switch executes steel building damage for trigger control module Detect program.
Further, in the control module, control module is fixed in lower plate by four columns, and two batteries are located at Below control module, battery is fixed on above lower plate by battery fixinig plate, wherein a batteries are the power supply of sucked type electromagnet, An other batteries are that the control module of detector is powered;The AD conversion unit, photoelectric coupling unit for promoting inhibition and solid-state relay It is connect with the main control unit, AD conversion unit is connected by high speed serialization Peripheral Interface with main control unit, while and Acceleration transducer connection, for carrying out conversion process to the signal of acquisition;Wireless communication unit passes through universal asynchronous receiver It is connect with sender interface with main control unit, main control unit unit and server transport wireless signal by wireless communication;Solid-state One end of relay is connected with the digital quantity signal output port of main control unit, the other end and sucked type electromagnetism of solid-state relay The power supply line of iron is connected, therefore main control unit can control the energization of sucked type electromagnet and off-position by solid-state relay; Photoelectric coupling unit for promoting inhibition is connect with detection switch.
Further, in the electromagnetic adsorption damage check module, the second fixinig plate is bolted under lower plate Side, one end of spring are fixed on the first fixinig plate, and the other end of spring is fixed on the second fixinig plate, and the first fixinig plate passes through Screw is fixed on sucked type electromagnet, and sucked type electromagnet is placed in sleeve, and the acceleration transducer is pacified by screw Below sucked type electromagnet, a part of acceleration transducer is stretched out in the lower section of sleeve;The electromagnetic adsorption damage inspection The sleeve for surveying module is bolted below lower plate, and sucked type electromagnet is pressed in sleeve by spring, to sucked type electricity Magnet generates pretightning force.
Technical concept of the invention are as follows: utilize technology of wireless sensing network, it is intended to make up previous large-scale steel structure building inspection Low efficiency is surveyed, or detection robot labyrinth builds the deficiency that can not be climbed, and staff can be assisted rapidly complete At steel building damage check, the construction time effectively is saved, improves detection efficiency.And this handheld electromagnetic absorption damage The cost of detector is not high, makes it possible to extensive application in steel building damage check.
The present invention provides a kind of handheld electromagnetics to adsorb damage check instrument, should using electromagnetic adsorption damage detecting method Detector can be adsorbed on the steel building of ferromagnetic surface's material when carrying out operation, and be damaged by electromagnetic adsorption Detection module, which is realized, works to the damage check of steel building, and staff can be assisted rapidly to complete steel building damage Triage surveys work, and detection efficiency is high, and at low cost, easy to carry.
Compared with prior art, the present invention having the advantage that
1) at low cost: since handheld electromagnetic absorption damage check instrument structure is simple, entire testing agency's overall cost phase It is more much lower than traditional static detection network cost.
2) small in size: the hand-held tester is small in size, light-weight, easy to carry.
3) detection efficiency is high: the handheld electromagnetic adsorbs the electromagnetic adsorption damage check mould installed below damage check instrument Block can generate rapidly magnetic attraction when detector bottom surface touch detection surface, staff's starting detection button, will accelerate Degree meter is closely attached to steel structure surface, after damage check is rapidly completed, breaks magnetic attraction, staff can go to down immediately One test point.
4) data are wirelessly transferred: handheld electromagnetic adsorbs damage check instrument unit by wireless communication, can be with server Carry out data transmission, send server for collected detection data, carries out the analysis of steel building damage signal and processing.
5) environmental suitability is strong: handheld electromagnetic absorption damage check instrument can be detected under difficult environmental conditions Work has good environmental suitability.
6) cruising ability is lasting: handheld electromagnetic absorption damage check instrument carries two pieces of batteries, supplies when for electromagnet When the battery capacity deficiency of electricity, detector can also continue to detect work by way of manually compressing detection module, from And realize steel building damage check.
Detailed description of the invention
Fig. 1 is the overall structure diagram of handheld electromagnetic absorption damage check instrument.
Fig. 2 is the control module scheme of installation of handheld electromagnetic absorption damage check instrument.
Fig. 3 is the electromagnetic adsorption damage check modular structure schematic diagram of handheld electromagnetic absorption damage check instrument.
Fig. 4 is schematic diagram of the handheld electromagnetic absorption damage check instrument above steel building detection zone.
Fig. 5 is schematic diagram of the handheld electromagnetic absorption damage check instrument work in steel building Surface testing.
Marginal data: 1. sleeves;2. lower plate;3. upper cover;4. antenna;5.LCD display screen;6. handle;7. power switch;8. Detection switch;9. battery;10. battery fixinig plate;11. wireless communication unit;12. main control unit;13. AD conversion unit;14. Control module;15. photoelectric coupling unit for promoting inhibition;16. solid-state relay;17. column;18. acceleration transducer;19. sucked type electromagnetism Iron;20. the first fixinig plate;21. spring;22. the second fixinig plate;23. steel building surface to be detected.
Specific embodiment
Structure is further described with reference to the accompanying drawings of the specification.
Referring to Fig.1~Fig. 5, a kind of handheld electromagnetic absorption damage check instrument for steel building flaw detection, including inspection Instrument shell, control module 14 and electromagnetic adsorption damage check module are surveyed, the detector shell includes on one lower plate 2, one Lid 3, the power switch 7 of LCD display 5, one of a handle 6, one and a detection switch 8;Under the detector shell Plate 2 is connected by screw to solid for installing control module 14, battery 9, electromagnetic adsorption damage check module, upper cover 3 and lower plate 2 It is fixed, for protecting control module 14 and its interlock circuit.Handle 6 is fixed by screws in detector upper cover 3, convenient for detection people Member carries.Detector upper cover 3 also lays LCD display 5, power switch 7 and detection switch 8, LCD display 5 and control mould Block 14 is connected, and for showing that the job information of detector, power switch 7 control the power on/off of detector, detection switch 8 is for touching It sends out control module 14 and executes steel building damage check program;
The control module 14 of handheld electromagnetic absorption damage check instrument as shown in Figure 2 includes AD conversion unit 13, master Unit 12, wireless communication unit 11, photoelectric coupling unit for promoting inhibition 15 and solid-state relay 16 are controlled, control module 14 passes through four columns 17 It is fixed in lower plate 2, two batteries 9 are located at 14 lower section of control module, and battery 9 is fixed in lower plate 2 by battery fixinig plate 10 Side, wherein a batteries are the power supply of sucked type electromagnet 19, in addition a batteries are that the control module 14 of detector is powered.It is described AD conversion unit 13, photoelectric coupling unit for promoting inhibition 15 and solid-state relay 16 are connect with the main control unit 12.Analog-to-digital conversion list Member 13 is connected by high speed serialization Peripheral Interface with main control unit 12, while being connected with acceleration transducer 18, for adopting The signal of collection carries out conversion process.Wireless communication unit 11 passes through universal asynchronous receiver and sender interface and main control unit 12 Connection, main control unit 12 unit 11 and server transport wireless signal by wireless communication.One end of solid-state relay 16 and master The digital quantity signal output port for controlling unit 12 is connected, the other end of solid-state relay 16 and the power supply line of sucked type electromagnet 19 It is connected, therefore main control unit 12 can control the energization of sucked type electromagnet 19 and off-position by solid-state relay 16.Photoelectricity Coupling unit 15 is connect with detection switch 8, and when detection switch 8 is pressed, photoelectric coupling unit for promoting inhibition 15 is sent to after converting signal Main control unit 12, main control unit 12 start to execute steel building damage check program.
By Fig. 3 and Fig. 4 as it can be seen that the electromagnetic adsorption damage check module of handheld electromagnetic absorption damage check instrument includes one 1, one, the sleeve acceleration transducer of sucked type electromagnet 19, one, 18, springs 21, the first fixinig plate 20 and second are fixed Piece 22, the second fixinig plate 22 of the electromagnetic adsorption damage check module are bolted on the lower section of lower plate 2, spring 21 One end is fixed on the first fixinig plate 20, and the other end of spring 21 is fixed on the second fixinig plate 22, and the first fixinig plate 20 passes through Screw is fixed on sucked type electromagnet 19.Sucked type electromagnet 19 is placed in sleeve 1, and the acceleration transducer 18 passes through Screw is mounted on 19 lower section of sucked type electromagnet, and a part of acceleration transducer 18 is stretched out in the lower section of sleeve 1.The electromagnetism The sleeve 1 of absorption damage check module is bolted on 2 lower section of lower plate, and sucked type electromagnet 19 is pressed on set by spring 21 In cylinder 1, pretightning force is generated to sucked type electromagnet 19.
The working principle of handheld electromagnetic absorption damage check instrument of the present invention is as shown in figure 5, work as handheld electromagnetic When absorption damage check instrument is placed into steel building surface 23 to be detected, acceleration transducer 18 and detected steel building Surface 23 contacts, and when Pen-down detection switch 8, main control unit 12 obtains detection procedure triggering signal, starts execution steel construction and builds Damage check program is built, main control unit 12 makes sucked type electromagnet 19 be in energized state, sucked type by solid-state relay 16 Electromagnet 19 generates electromagnetic adsorption power to steel building measured surface 23, is attached to acceleration transducer 18 closely to be detected Steel building surface 23 carries out damage check operation.When completion is to the damage check on a steel building surface to be detected After work, main control unit 12 makes sucked type electromagnet 19 be in off-position, sucked type electromagnet 19 by solid-state relay 16 Electromagnetic adsorption power cannot be generated to steel building measured surface 23, handheld electromagnetic can be adsorbed damage inspection by staff at this time It surveys instrument to take off, and damage check is carried out to next steel building surface to be detected.
Handheld electromagnetic absorption damage check instrument in the present invention is that control module 14 is individually powered, the benefit done so It is that, when the battery capacity deficiency powered for sucked type electromagnet 19, sucked type electromagnet 19 can not be powered to steel building Measured surface generates electromagnetic adsorption power, and then acceleration transducer 18 can not be made closely to be attached to steel building table to be detected Face carries out damage check operation.However, detector can pass through people due to the special construction of electromagnetic adsorption damage check module Work compresses the mode of detection module, so that acceleration transducer 18 is closely attached to steel building table to be detected using spring force Steel building damage check is realized to continue to detect work in face.

Claims (4)

1. a kind of handheld electromagnetic for steel building flaw detection adsorbs damage check instrument, which is characterized in that the detector Including detector shell, control module and electromagnetic adsorption damage check module, the detector shell includes a lower plate, one Upper cover, a handle, a LCD display, a power switch and a detection switch;The electromagnetic adsorption damage check mould Block includes that a sucked type electromagnet, a sleeve, an acceleration transducer, a spring, the first fixinig plate and second are solid Stator;The control module include AD conversion unit, main control unit, wireless communication unit, photoelectric coupling unit for promoting inhibition and solid-state after Electric appliance.
2. a kind of handheld electromagnetic for steel building flaw detection as described in claim 1 adsorbs damage check instrument, special Sign is, in the detector shell, the lower plate is used to install control module, battery and electromagnetic adsorption damage check module, Upper cover and lower plate are connected by screw to fixation;Handle is fixed by screws on detector on lid, and detector upper cover is also laid LCD display, power switch and detection switch, LCD display are connected with control module, for showing that the work of detector is believed Breath, power switch control the power on/off of detector, and detection switch executes steel building damage check for trigger control module Program.
3. a kind of handheld electromagnetic for steel building flaw detection as claimed in claim 1 or 2 adsorbs damage check instrument, It is characterized in that, in the control module, control module is fixed in lower plate by four columns, and two batteries are located at control module Lower section, battery are fixed on above lower plate by battery fixinig plate, wherein a batteries are that sucked type electromagnet is powered, an other section Battery is that the control module of detector is powered;The AD conversion unit, photoelectric coupling unit for promoting inhibition and solid-state relay with it is described Main control unit connection, AD conversion unit are connected by high speed serialization Peripheral Interface with main control unit, while being passed with acceleration Sensor connection, for carrying out conversion process to the signal of acquisition;Wireless communication unit passes through universal asynchronous receiver and transmitter Interface is connect with main control unit, main control unit unit and server transport wireless signal by wireless communication;Solid-state relay One end is connected with the digital quantity signal output port of main control unit, the other end of solid-state relay and the power supply of sucked type electromagnet Line is connected, therefore main control unit can control the energization of sucked type electromagnet and off-position by solid-state relay;Photoelectric coupling Unit is connect with detection switch.
4. a kind of handheld electromagnetic for steel building flaw detection as claimed in claim 1 or 2 adsorbs damage check instrument, It is characterized in that, in the electromagnetic adsorption damage check module, the second fixinig plate is bolted on the lower section of lower plate, spring One end is fixed on the first fixinig plate, and the other end of spring is fixed on the second fixinig plate, and the first fixinig plate is fixed by screw On sucked type electromagnet, sucked type electromagnet is placed in sleeve, and the acceleration transducer is mounted on sucker by screw Below formula electromagnet, a part of acceleration transducer is stretched out in the lower section of sleeve;The electromagnetic adsorption damage check module Sleeve is bolted below lower plate, and sucked type electromagnet is pressed in sleeve by spring, is generated to sucked type electromagnet Pretightning force.
CN201910051416.9A 2019-01-21 2019-01-21 A kind of handheld electromagnetic absorption damage check instrument for steel building flaw detection Pending CN109738522A (en)

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CN201910051416.9A CN109738522A (en) 2019-01-21 2019-01-21 A kind of handheld electromagnetic absorption damage check instrument for steel building flaw detection

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112325944A (en) * 2020-11-10 2021-02-05 李卫东 Engineering pile construction monitoring device based on BIM and monitoring method thereof
CN114397364A (en) * 2022-01-07 2022-04-26 华能国际电力股份有限公司丹东电厂 Condenser overhauling device and method

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101446572A (en) * 2008-12-17 2009-06-03 重庆交通大学 Device for detecting cavity beneath structure panel by instantaneous impulsion method and detection method thereof
CN201618681U (en) * 2010-04-02 2010-11-03 宁波大学 Vibration exciter
CN203164158U (en) * 2013-03-19 2013-08-28 刘洋 Damage detection device for steel tube
CN204116284U (en) * 2014-10-27 2015-01-21 中国民航大学 A kind of aircraft cellular structural composite material knocks and detects and non-destructive tests device
CN204346742U (en) * 2015-01-08 2015-05-20 唐德尧 A kind of portable subway travelled by vehicle portion test diagnosis system
CN204694434U (en) * 2015-03-25 2015-10-07 西安建筑科技大学 A kind of hand-held vibration fault detector
JP2015189325A (en) * 2014-03-28 2015-11-02 株式会社小川優機製作所 Vertical plane travel device
CN105486478A (en) * 2015-12-08 2016-04-13 江南大学 Electronic hammer module
CN205175696U (en) * 2015-10-26 2016-04-20 中国南方航空工业(集团)有限公司 Measurement device for be used for aeroengine structure spare natural frequency
CN105823552A (en) * 2016-05-06 2016-08-03 简燕梅 Intelligent detection robot car for architectural structure vibration
CN108053902A (en) * 2018-01-17 2018-05-18 上海核工程研究设计院有限公司 A kind of containment structure damage monitoring device based on vibration
CN208109367U (en) * 2018-04-12 2018-11-16 西安工程大学 A kind of exciting bank and monitoring system for monitoring electric power pylon structural damage
CN108918118A (en) * 2018-07-06 2018-11-30 西安工程大学 A kind of electric power pylon bolt looseness monitoring system and method based on artificial excitation

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101446572A (en) * 2008-12-17 2009-06-03 重庆交通大学 Device for detecting cavity beneath structure panel by instantaneous impulsion method and detection method thereof
CN201618681U (en) * 2010-04-02 2010-11-03 宁波大学 Vibration exciter
CN203164158U (en) * 2013-03-19 2013-08-28 刘洋 Damage detection device for steel tube
JP2015189325A (en) * 2014-03-28 2015-11-02 株式会社小川優機製作所 Vertical plane travel device
CN204116284U (en) * 2014-10-27 2015-01-21 中国民航大学 A kind of aircraft cellular structural composite material knocks and detects and non-destructive tests device
CN204346742U (en) * 2015-01-08 2015-05-20 唐德尧 A kind of portable subway travelled by vehicle portion test diagnosis system
CN204694434U (en) * 2015-03-25 2015-10-07 西安建筑科技大学 A kind of hand-held vibration fault detector
CN205175696U (en) * 2015-10-26 2016-04-20 中国南方航空工业(集团)有限公司 Measurement device for be used for aeroengine structure spare natural frequency
CN105486478A (en) * 2015-12-08 2016-04-13 江南大学 Electronic hammer module
CN105823552A (en) * 2016-05-06 2016-08-03 简燕梅 Intelligent detection robot car for architectural structure vibration
CN108053902A (en) * 2018-01-17 2018-05-18 上海核工程研究设计院有限公司 A kind of containment structure damage monitoring device based on vibration
CN208109367U (en) * 2018-04-12 2018-11-16 西安工程大学 A kind of exciting bank and monitoring system for monitoring electric power pylon structural damage
CN108918118A (en) * 2018-07-06 2018-11-30 西安工程大学 A kind of electric power pylon bolt looseness monitoring system and method based on artificial excitation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112325944A (en) * 2020-11-10 2021-02-05 李卫东 Engineering pile construction monitoring device based on BIM and monitoring method thereof
CN114397364A (en) * 2022-01-07 2022-04-26 华能国际电力股份有限公司丹东电厂 Condenser overhauling device and method

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