CN102749037A - Photoelectric type derrick deflection detection device and detection method thereof - Google Patents
Photoelectric type derrick deflection detection device and detection method thereof Download PDFInfo
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- CN102749037A CN102749037A CN2012101539000A CN201210153900A CN102749037A CN 102749037 A CN102749037 A CN 102749037A CN 2012101539000 A CN2012101539000 A CN 2012101539000A CN 201210153900 A CN201210153900 A CN 201210153900A CN 102749037 A CN102749037 A CN 102749037A
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Abstract
The invention discloses a photoelectric type derrick deflection detection device and a detection method thereof. The device comprises a laser emitter, a laser receiver, optical choppers, inclination sensors and a deflection detector, wherein the laser receiver and an inclination sensor are arranged at the upper end of a derrick, the laser emitter and an inclination sensor are arranged at the lower end of the derrick, and optical choppers and inclination sensors are arranged on all detection points of the middle of the derrick. When end portions of the derrick are subjected to a load action, the whole deflection of the derrick can be detected. According to the photoelectric type derrick deflection detection device and the detection method thereof, the device can detect the whole deflection value and a destabilization state after force is exerted on the derrick, bases are provided for the force analysis of the derrick, the optimization design of the derrick and the quality detection of the derrick, the precision is high, the range is wide, the accuracy is good, the structure is simple, the operation is simple, the producing cost is low and the data can be displayed in real time.
Description
Technical field
The present invention relates to a kind of testing apparatus that the stressed back of pole produces amount of deflection that detects, relate in particular to a kind of photo-electric pole amount of deflection pick-up unit and detection method thereof.
Background technology
At present, the method that Theoretical Calculation commonly used combines with Analysis of Experimental Stress is carried out the pole structure optimization design.This Analysis of Experimental Stress method generally is an adhering resistance strain sheets on the member of pole, measures the strain of its stressed back member, draws the intensity level of member through converting.For stressed whole amount of deflection in back of pole and rigidity value, can only draw by doing model test.Because the model and the prototype of pole have a great difference on the mode of material, processing etc., so model experiment results often has bigger difference with actual conditions, can not satisfy the demand in the application.
Summary of the invention
The object of the invention is exactly in order to remedy the defective of prior art, a kind of photo-electric pole amount of deflection pick-up unit and detection method thereof of ability prototype test pole integral rigidity to be provided.
The present invention realizes through following technical scheme:
A kind of photo-electric pole amount of deflection pick-up unit; Include pole, bearing, basis, generating laser, laser pickoff, amount of deflection detector, some episcotisters, some obliquity sensors, carry hinge and load; The lower end of described pole is connected with described bearing; Bearing is fixed on the basis; On the lateral surface of the little direction of cross sectional moment of inertia of pole, a described laser pickoff and an obliquity sensor are settled in the upper end, and a described generating laser and an obliquity sensor are settled in the lower end; Middle equidistance be mounted with described episcotister and obliquity sensor; The laser beam that described generating laser, laser pickoff, episcotister and obliquity sensor all are positioned on the lateral surface center line of the little direction of cross sectional moment of inertia and generating laser sends can be received and by the episcotister interception, the output terminal of described some episcotisters and some obliquity sensors all is connected with described amount of deflection detector by laser pickoff, and described load is applied to the upper end of pole.
Adopt above-mentioned device to carry out the detection method that photo-electric pole amount of deflection detects; Give off laser beam by generating laser and to be received by laser pickoff; Measure the angle of inclination of pole two ends and measuring point respectively by each obliquity sensor; Measure the distance of measuring point and laser beam respectively by each episcotister, draw the original state of pole; The elementary load application in the upper end of pole whenever adds the one-level load, is given off laser beam again by generating laser, and each obliquity sensor is measured the angle of inclination of pole two ends and measuring point more respectively, and each episcotister is in the distance of measuring measuring point and laser beam respectively; All import angle of inclination and the range data measured into processing that the amount of deflection detector carries out data at every turn, draw the whole amount of deflection of pole under the bearing load situation of end.
Described generating laser includes the case that is fixed on the base; Have a window on the described case end face; Be equipped with one on the window and insert door, be mounted with laser pendulum injection device one on the case internal base, described laser pendulum injection device one includes motor one, the speed reduction unit one that is fixed on successively on the base, the support that is U type groove shape, detent one and angular displacement sensor one; The main shaft of described motor one is connected with the main shaft of speed reduction unit one; The transmission shaft of speed reduction unit one is connected with the rotating shaft of support left frame wall, and the rotating shaft of support left side frame wall is connected with the main shaft of detent one, and the other end of the main shaft of detent one is connected with the main shaft of angular displacement sensor one; Between frame bottom and base, be lined with beam; The both sides, front and back of beam are mounted with magnetosensitive switch one respectively, and the rotating shaft of the support left and right sides is same central axis, and support centers on this central axis with an angle swinging; Described laser pendulum injection device two is fixed with motor two, speed reduction unit two, Laser emission seat, detent two and angular displacement sensor two successively for the frame bottom at described laser pendulum injection device one; The main shaft of motor two is connected with the main shaft of speed reduction unit two; The transmission shaft of speed reduction unit two is connected with the front side rotating shaft of Laser emission seat; The rear side rotating shaft of Laser emission seat is connected with the main shaft of detent two, and the other end of the main shaft of detent two is connected with the main shaft of angular displacement sensor two, on the described Laser emission seat Laser emission element is installed; Be separately installed with shock-absorbing spring on the left and right sides face of Laser emission seat; Right ends in Laser emission seat bottom surface is mounted with magnetosensitive switch two respectively, and leading flank rotating shaft of Laser emission seat and trailing flank rotating shaft are same central axis, and the Laser emission seat centers on this central axis with an angle swinging.
Described laser pickoff includes the casing that is installed on the chassis, and casing top board center has circular hole, and equidistance is installed several light activated elements on the top board of circular hole periphery; Inboard at top board, with the circular hole concentric position cylindrical shape modulation cover is installed, between modulation cover top and the casing top board modulation panel is installed; The bottom is equipped with circuit board; Center at modulation panel is equipped with transmissive mirror, and the circuit board center is equipped with photosensitive receiving tube, wherein; Luminous energy through transmissive mirror shines on the photosensitive receiving tube, is provided with the cable fixed head in the casing outside.
Principle of work of the present invention is: when bearing axle pressure at the two ends of pole, pole destroys because of the excessive unstability of amount of deflection that produces often.According to the theory of the mechanics of materials, little its rigidity of the cross sectional moment of inertia of pole is just little, and will produce amount of deflection in the little direction of this cross sectional moment of inertia.On the lateral surface of the little direction of pole cross sectional moment of inertia, the upper end of pole is mounted with laser pickoff now, and the lower end is mounted with generating laser, and the laser beam of being sent and being received by laser pickoff by generating laser is the line of reference of pole center line; The measuring point of equidistant placement all is mounted with episcotister and obliquity sensor in the middle of the pole; The vertical range that is recorded pole lateral surface to line of reference by episcotister is a deflection value; The sectional twisting angle value that records by obliquity sensor; And the corner value of the line of reference that records of the obliquity sensor at two ends, draw the whole amount of deflection of pole when stressed with this.When the power of bearing when pole is enough big, record the whole unstability form of pole.
Described generating laser principle of work is: laser pendulum injection device one is by the power of motor one; Drive the support swing through speed reduction unit one; And receive the signal of laser according to the photosensitive receiving tube of laser pickoff by the amount of deflection detector; Control brake device pair of brackets is braked, and measures the pivot angle of support when the time comes by obliquity sensor one.Laser pendulum injection device two is by the power of motor two; Drive the swing of Laser emission seat through speed reduction unit two; And the amount of deflection detector receives the signal of laser according to the photosensitive receiving tube of laser pickoff; Two pairs of Laser emission seats of control brake device are braked, and measure the pivot angle of Laser emission seat when the time comes by obliquity sensor two.During generating laser emission laser, after laser pendulum injection device one every swing Δ α trace angle, laser pendulum injection device two swing β angles have been swung the α angle until laser pendulum injection device one, and L * (L is the distance of generating laser to laser pickoff to β L to form α; α, β are less, are regarded as α ≈ tg α, β ≈ tg β) rectangular irradiated face, cover laser pickoff, be able to generating laser and follow the tracks of laser pickoff, let laser shine on the photosensitive receiving tube from the transmissive mirror of laser pickoff modulation panel.
The principle of work of described laser pickoff is: the laser radiation of sending when generating laser is to the transmissive mirror of laser pickoff, and receives through the photosensitive receiving tube in the modulation cover, and photosensitive receiving tube receives the signal of laser again to the output of amount of deflection detector.After pole is stressed, produced the distortion of amount of deflection; The laser that generating laser sends departs from transmissive mirror; Shine on several light activated elements on every side of modulation hole; Promptly to the relevant position of amount of deflection detector output illuminated laser spot, the amount of deflection detector is made judgement to light activated element, controls the transmissive mirror that the Laser emission element of generating laser is aimed at laser pickoff again with prestissimo.
Among the present invention, pole is tested member; The effect of carrying hinge is transmission power, not carry-over moment; The effect of bearing is the web member that pole is supported in the basis; The effect on basis is the supporting pole; The effect of load is the power that detects with the classification load; The effect of episcotister is the distance that measures measuring point place pole lateral surface to laser line of reference; The effect of obliquity sensor is the angle that measures the pole distortion of measuring point place; The little direction center line of cross sectional moment of inertia is the center line of the cross section at pole measuring point place in the little direction of cross sectional moment of inertia; The effect of generating laser 11 is the laser line of reference of making for the pole center line, and can be in the angle of setting (α, β) emission of lasering beam; The effect of base is to settle generating laser, and motor one, speed reduction unit one, detent one, angular displacement sensor one and the magnetosensitive switch one of fixed laser pendulum injection device one; The effect of case is the protection generating laser; The effect of inserting door is a protection Laser emission element; The effect of laser pendulum injection device one is to let laser beam emitting device two on the X coordinate direction, swing back and forth with the α angular range; The effect of motor one is for the support swing power to be provided; The effect of speed reduction unit one is a control support swing speed; The effect of detent one is to be the support braking; The effect of angular displacement sensor one is the angle that measures the support swing; The effect of support is a supporting laser pendulum injection device two; The effect of support left frame wall is the connection reducer transmission shaft; The effect of support left side frame wall is the main shaft that connects detent; The effect of magnetosensitive switch one is the amplitude of control support 2 swings; The effect of beam is a vibration damping when putting injection device two swings for laser; The effect of laser pendulum injection device two is to let the Laser emission element on the Y coordinate direction, come backswing to penetrate laser beam with the β angular range; The effect of motor two is for the swing of Laser emission component holder power to be provided; The effect of speed reduction unit two is control Laser emission component holder swing speed; The effect of detent two is the brakings of Laser emission component holder; The effect of angular displacement sensor two is the angles that measure the swing of Laser emission component holder; The effect of Laser emission seat is the fixed laser radiated element; The effect of Laser emission element is an emission of lasering beam; The effect of magnetosensitive switch is the amplitude of control Laser emission component holder swing; The effect of shock-absorbing spring is a vibration damping when swinging for the Laser emission seat; The effect of laser pickoff is to receive the laser that generating laser sends, the laser line of reference of making for the pole center line; The effect of casing is fixed light photosensitive elements and modulation cover; The effect on chassis is fixing casing; The effect of light activated element is the information that provides laser beam to aim at transmissive mirror for detector, improves the speed that laser beam is aimed at transmissive mirror; The effect of modulation cover is to seal lighttight space around forming; The effect of modulation panel is to settle transmissive mirror; The effect of transmissive mirror is to improve the precision that receives laser beam, and lets laser beam irradiation to photosensitive receiving tube; The effect of circuit board is to settle photosensitive receiving tube, electronic component and circuit; The effect of photosensitive receiving tube is an electronic component of accepting laser beam; The effect of cable fixed head is an outgoing cable.
Advantage of the present invention is: a kind of photo-electric pole amount of deflection pick-up unit and detection method thereof that the present invention proposes; This pick-up unit can detect whole deflection value and the instability status of pole prototype after stressed; For force analysis, optimal design, the quality inspection of pole provides foundation, have that precision height, range are big, accuracy good, simple in structure, easy and simple to handle, cost is low, the advantage of real-time video data etc.
Description of drawings
Fig. 1 is the front elevation of apparatus of the present invention.
Fig. 2 is the vertical view of apparatus of the present invention.
Fig. 3 is the left view of apparatus of the present invention.
Fig. 4 is the front elevation of generating laser.
Fig. 5 is the vertical view of generating laser.
Fig. 6 is the left view of generating laser.
Fig. 7 is the front elevation of laser pickoff.
Fig. 8 is the vertical view of laser pickoff.
Embodiment
A kind of photo-electric pole amount of deflection pick-up unit; Like Fig. 1, shown in 2 and 3; Include pole 1, bearing 3, basis 4, generating laser 11, laser pickoff 41, amount of deflection detector, some episcotisters 6, some obliquity sensors 7, carry hinge 2 and load 5; The lower end of described pole 1 is connected with described bearing 3; Bearing 3 is fixed on the basis 4; On the lateral surface of the little direction of cross sectional moment of inertia of pole 1, a described laser pickoff 41 and an obliquity sensor 7 are settled in the upper end, and a described generating laser 11 and an obliquity sensor 7 are settled in the lower end; Middle equidistance be mounted with described episcotister 6 and obliquity sensor 7; The laser beam that described generating laser 11, laser pickoff 41, episcotister 6 and obliquity sensor 7 all are positioned on the lateral surface center line 8 of the little direction of cross sectional moment of inertia and generating laser 11 sends can be received and by episcotister 6 interceptions, the output terminal of described some episcotisters 6 and some obliquity sensors 7 all is connected with described amount of deflection detector by laser pickoff 41, and described load 5 is applied to the upper end of pole 1.
Adopt above-mentioned device to carry out the detection method that photo-electric pole amount of deflection detects; Give off laser beam by laser pickoff 41 receptions by generating laser 11; Measure the angle of inclination of pole 1 two ends and measuring point respectively by each obliquity sensor 7; Measure the distance of measuring point and laser beam respectively by each episcotister 6, draw the original state of pole 1; Elementary load application 5 whenever adds one-level load 5 in the upper end of pole 1, is given off laser beam again by generating laser 11, and each obliquity sensor 7 is measured the angle of inclination of pole 1 two ends and measuring point more respectively, and each episcotister 6 is in the distance of measuring measuring point and laser beam respectively; All import angle of inclination and the range data measured into processing that the amount of deflection detector carries out data at every turn, draw the whole amount of deflection of pole 1 under end bearing load 5 situation.
Like Fig. 4,5, shown in 6; Described generating laser 11 includes the case 13 that is fixed on the base 12, has a window 14 on described case 13 end faces, is equipped with one on the window 14 and inserts door 15; Be mounted with laser pendulum injection device one on case 13 internal base 12; Described laser pendulum injection device one includes motor 1, the speed reduction unit 1 that is fixed on successively on the base, the support 25 that is U type groove shape, detent 1 and angular displacement sensor 1, and the main shaft of described motor 1 is connected with the main shaft of speed reduction unit 1, and the transmission shaft of speed reduction unit 1 is connected with support 25 left frame wall rotating shafts; Support 25 left side frame wall rotating shafts are connected with the main shaft of detent 1; The other end of the main shaft of detent 1 is connected with the main shaft of angular displacement sensor 1, between support 25 bottoms and base 12, is lined with beam 27, and the both sides, front and back of beam 27 are mounted with magnetosensitive switch 1 respectively; The rotating shaft of support 25 left and right sides is same central axis, and support centers on this central axis with an angle swinging; Described laser pendulum injection device two is fixed with motor 2 31, speed reduction unit 2 32, Laser emission seat 35, detent 2 33 and angular displacement sensor 2 34 successively for support 25 bottoms at described laser pendulum injection device one; The main shaft of motor 2 31 is connected with the main shaft of speed reduction unit 2 32; The transmission shaft of speed reduction unit 2 32 is connected with the front side rotating shaft of Laser emission seat 35; The rear side rotating shaft of Laser emission seat 35 is connected with the main shaft of detent 2 33; The other end of the main shaft of detent 2 33 is connected with the main shaft of angular displacement sensor 2 34; On the described Laser emission seat 35 Laser emission element 36 is installed, is separately installed with shock-absorbing spring 38 on the left and right sides face of Laser emission seat 35, the right ends in Laser emission seat 35 bottom surfaces is mounted with magnetosensitive switch 2 37 respectively; 35 leading flank rotating shafts of Laser emission seat and trailing flank rotating shaft are same central axis, and Laser emission seat 35 centers on this central axis with an angle swinging.
Shown in Fig. 7 and 8, described laser pickoff 41 includes the casing 42 that is installed on the chassis 43, and casing 42 top board centers have circular hole; Equidistance is installed several light activated elements 44 on the top board of circular hole periphery, and is inboard at top board, with the circular hole concentric position cylindrical shape modulation cover 45 is installed; Between modulation cover 45 tops and casing 42 top boards modulation panel 46 is installed, the bottom is equipped with circuit board 48, at the center of modulation panel 46 transmissive mirror 47 is installed; Circuit board 48 centers are equipped with photosensitive receiving tube 49; Wherein, the luminous energy through transmissive mirror 47 shines on the photosensitive receiving tube 49, is provided with cable fixed head 50 in casing 42 outsides.
Claims (4)
1. photo-electric pole amount of deflection pick-up unit; It is characterized in that: include pole, bearing, basis, generating laser, laser pickoff, amount of deflection detector, some episcotisters, some obliquity sensors, carry hinge and load; The lower end of described pole is connected with described bearing; Bearing is fixed on the basis; On the lateral surface of the little direction of cross sectional moment of inertia of pole, a described laser pickoff and an obliquity sensor are settled in the upper end, and a described generating laser and an obliquity sensor are settled in the lower end; Middle equidistance be mounted with described episcotister and obliquity sensor; The laser beam that described generating laser, laser pickoff, episcotister and obliquity sensor all are positioned on the lateral surface center line of the little direction of cross sectional moment of inertia and generating laser sends can be received and by the episcotister interception, the output terminal of described some episcotisters and some obliquity sensors all is connected with described amount of deflection detector by laser pickoff, and described load is applied to the upper end of pole.
2. adopt the described device of claim 1 to carry out the detection method that photo-electric pole amount of deflection detects; It is characterized in that: being given off laser beam by generating laser is received by laser pickoff; Measure the angle of inclination of pole two ends and measuring point respectively by each obliquity sensor; Measure the distance of measuring point and laser beam respectively by each episcotister, draw the original state of pole; The elementary load application in the upper end of pole whenever adds the one-level load, is given off laser beam again by generating laser, and each obliquity sensor is measured the angle of inclination of pole two ends and measuring point more respectively, and each episcotister is in the distance of measuring measuring point and laser beam respectively; All import angle of inclination and the range data measured into processing that the amount of deflection detector carries out data at every turn, draw the whole amount of deflection of pole under the bearing load situation of end.
3. photo-electric pole amount of deflection pick-up unit according to claim 1; It is characterized in that: described generating laser includes the case that is fixed on the base; Have a window on the described case end face, be equipped with one on the window and insert door, be mounted with laser pendulum injection device one on the case internal base; Described laser pendulum injection device one includes motor one, the speed reduction unit one that is fixed on successively on the base, the support that is U type groove shape, detent one and angular displacement sensor one; The main shaft of described motor one is connected with the main shaft of speed reduction unit one, and the transmission shaft of speed reduction unit one is connected with the rotating shaft of support left frame wall, and the rotating shaft of support left side frame wall is connected with the main shaft of detent one; The other end of the main shaft of detent one is connected with the main shaft of angular displacement sensor one; Between frame bottom and base, be lined with beam, the both sides, front and back of beam are mounted with magnetosensitive switch one respectively, and the rotating shaft of the support left and right sides is same central axis; Described laser pendulum injection device two is fixed with motor two, speed reduction unit two, Laser emission seat, detent two and angular displacement sensor two successively for the frame bottom at described laser pendulum injection device one; The main shaft of motor two is connected with the main shaft of speed reduction unit two; The transmission shaft of speed reduction unit two is connected with the front side rotating shaft of Laser emission seat; The rear side rotating shaft of Laser emission seat is connected with the main shaft of detent two; The other end of the main shaft of detent two is connected with the main shaft of angular displacement sensor two, on the described Laser emission seat Laser emission element is installed, and is separately installed with shock-absorbing spring on the left and right sides face of Laser emission seat; Right ends in Laser emission seat bottom surface is mounted with magnetosensitive switch two respectively, and leading flank rotating shaft of Laser emission seat and trailing flank rotating shaft are same central axis.
4. photo-electric pole amount of deflection pick-up unit according to claim 1, it is characterized in that: described laser pickoff includes the casing that is installed on the chassis, and casing top board center has circular hole; Equidistance is installed several light activated elements on the top board of circular hole periphery, and is inboard at top board, with the circular hole concentric position cylindrical shape modulation cover is installed; Between modulation cover top and the casing top board modulation panel is installed, the bottom is equipped with circuit board, at the center of modulation panel transmissive mirror is installed; The circuit board center is equipped with photosensitive receiving tube; Wherein, the luminous energy through transmissive mirror shines on the photosensitive receiving tube, is provided with the cable fixed head in the casing outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210153900.0A CN102749037B (en) | 2012-05-17 | 2012-05-17 | Photoelectric type derrick deflection detection device and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210153900.0A CN102749037B (en) | 2012-05-17 | 2012-05-17 | Photoelectric type derrick deflection detection device and detection method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN102749037A true CN102749037A (en) | 2012-10-24 |
| CN102749037B CN102749037B (en) | 2014-11-05 |
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| CN201210153900.0A Expired - Fee Related CN102749037B (en) | 2012-05-17 | 2012-05-17 | Photoelectric type derrick deflection detection device and detection method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387839A (en) * | 2015-12-22 | 2016-03-09 | 上海锅炉厂有限公司 | Pipe deflection measuring device and measuring method |
| CN105758325A (en) * | 2016-04-28 | 2016-07-13 | 杭州凯达电力建设有限公司 | Holding pole deformation measuring instrument |
| CN108050951A (en) * | 2017-12-27 | 2018-05-18 | 海宁文硕科技咨询有限公司 | A kind of busbar in high tension distribution system stretches amount detection systems |
| CN108168437A (en) * | 2017-12-27 | 2018-06-15 | 海宁文硕科技咨询有限公司 | A kind of busbar in high tension distribution system stretches quantity measuring method |
| CN112014043A (en) * | 2020-08-19 | 2020-12-01 | 江苏方天电力技术有限公司 | Digital large plate girder deflection measuring device and method |
| CN113203396A (en) * | 2020-09-17 | 2021-08-03 | 金华一纵一横工业设计有限公司 | Thing networking communication equipment slope monitoring early warning device |
| CN115031683A (en) * | 2022-03-11 | 2022-09-09 | 武汉理工大学 | Real-time high-precision structural deflection measuring system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4060329A (en) * | 1975-10-23 | 1977-11-29 | General Electric Company | Method and apparatus for measuring deflection of rotating airfoils |
| JPH0278905A (en) * | 1988-07-27 | 1990-03-19 | J M Voith Gmbh | Deflection measuring device for constitutional member extended in long size |
| CN1948634A (en) * | 2006-04-19 | 2007-04-18 | 武汉岩海工程技术有限公司 | Method and device of measuring deflection settling of engineering structure body |
| CN101063610A (en) * | 2007-05-28 | 2007-10-31 | 张立品 | Automatic monitoring system for engineering project deformation |
| CN201110756Y (en) * | 2007-12-21 | 2008-09-03 | 重庆交通大学 | Apparatus for measuring continuous vertical deflection / displacement |
| CN201397222Y (en) * | 2009-03-30 | 2010-02-03 | 重庆交通大学 | Multi-point deflection rapid measuring system |
| CN102346018A (en) * | 2011-09-30 | 2012-02-08 | 合肥工业大学 | Photoelectric type flexibility tester of building member |
-
2012
- 2012-05-17 CN CN201210153900.0A patent/CN102749037B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4060329A (en) * | 1975-10-23 | 1977-11-29 | General Electric Company | Method and apparatus for measuring deflection of rotating airfoils |
| JPH0278905A (en) * | 1988-07-27 | 1990-03-19 | J M Voith Gmbh | Deflection measuring device for constitutional member extended in long size |
| CN1948634A (en) * | 2006-04-19 | 2007-04-18 | 武汉岩海工程技术有限公司 | Method and device of measuring deflection settling of engineering structure body |
| CN101063610A (en) * | 2007-05-28 | 2007-10-31 | 张立品 | Automatic monitoring system for engineering project deformation |
| CN201110756Y (en) * | 2007-12-21 | 2008-09-03 | 重庆交通大学 | Apparatus for measuring continuous vertical deflection / displacement |
| CN201397222Y (en) * | 2009-03-30 | 2010-02-03 | 重庆交通大学 | Multi-point deflection rapid measuring system |
| CN102346018A (en) * | 2011-09-30 | 2012-02-08 | 合肥工业大学 | Photoelectric type flexibility tester of building member |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387839A (en) * | 2015-12-22 | 2016-03-09 | 上海锅炉厂有限公司 | Pipe deflection measuring device and measuring method |
| CN105758325A (en) * | 2016-04-28 | 2016-07-13 | 杭州凯达电力建设有限公司 | Holding pole deformation measuring instrument |
| CN105758325B (en) * | 2016-04-28 | 2018-01-26 | 杭州凯达电力建设有限公司 | A kind of pole distortion measurement instrument |
| CN108050951A (en) * | 2017-12-27 | 2018-05-18 | 海宁文硕科技咨询有限公司 | A kind of busbar in high tension distribution system stretches amount detection systems |
| CN108168437A (en) * | 2017-12-27 | 2018-06-15 | 海宁文硕科技咨询有限公司 | A kind of busbar in high tension distribution system stretches quantity measuring method |
| CN112014043A (en) * | 2020-08-19 | 2020-12-01 | 江苏方天电力技术有限公司 | Digital large plate girder deflection measuring device and method |
| CN113203396A (en) * | 2020-09-17 | 2021-08-03 | 金华一纵一横工业设计有限公司 | Thing networking communication equipment slope monitoring early warning device |
| CN115031683A (en) * | 2022-03-11 | 2022-09-09 | 武汉理工大学 | Real-time high-precision structural deflection measuring system |
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| CN102749037B (en) | 2014-11-05 |
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