CN111351463A - Novel diameter measuring probe for pipeline detector - Google Patents

Novel diameter measuring probe for pipeline detector Download PDF

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Publication number
CN111351463A
CN111351463A CN202010359772.XA CN202010359772A CN111351463A CN 111351463 A CN111351463 A CN 111351463A CN 202010359772 A CN202010359772 A CN 202010359772A CN 111351463 A CN111351463 A CN 111351463A
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China
Prior art keywords
probe
diameter measuring
base
pipeline
rotating shaft
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CN202010359772.XA
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Chinese (zh)
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CN111351463B (en
Inventor
宋云鹏
汤银龙
张文强
宋华东
徐春风
诸海博
王宇楠
郭晓婷
徐义忠
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Shenyang Academy of Instrumentation Science Co Ltd
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Shenyang Academy of Instrumentation Science Co Ltd
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Priority to CN202010359772.XA priority Critical patent/CN111351463B/en
Priority claimed from CN202010359772.XA external-priority patent/CN111351463B/en
Publication of CN111351463A publication Critical patent/CN111351463A/en
Application granted granted Critical
Publication of CN111351463B publication Critical patent/CN111351463B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/10Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
    • G01B21/14Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters internal diameters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/32Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

The application provides a novel diameter measuring probe for a pipeline detector, which comprises a probe assembly, a diameter measuring sensor, a base assembly, a torsion spring structure, a rotating shaft and a magnet; the probe assembly comprises a probe arm and a wear-resistant sheet, the magnet is embedded into the positioning hole, one end of the probe arm is connected with the wear-resistant sheet, the wear-resistant sheet is in contact with the inner wall of the pipeline, the other end of the probe arm is connected with a probe rotating shaft, the rotating shaft and the probe arm are relatively fixed, and when the wear-resistant sheet is in contact with the pipeline and deforms, the probe arm can drive the rotating shaft to rotate; the probe base is responsible for fixing the diameter measuring probe assembly on the pipeline internal detector, one side of the probe base uses epoxy resin to seal and glue the fixed diameter measuring sensor, the sensor chip is just to the pivot center, can drive magnet together rotatory when the pivot is rotatory, the rotation angle can be gathered to the diameter measuring sensor, combine probe arm length can calculate pipeline deflection numerical value, this diameter measuring probe volume is less, reaches the high accuracy and detects, can take notes pipeline deformation data, be applicable to before the delivery and at the detection of labour pipeline.

Description

Novel diameter measuring probe for pipeline detector
Technical Field
The invention relates to the field of pipeline detection, in particular to a novel diameter measuring probe for a pipeline detector.
Background
The pipeline is buried underground and under the sea, and after long-time operation, the pipeline is damaged or corroded by geological damage, corrosion, self defects and other reasons, so that the operation safety of the pipeline is influenced, and the pipeline needs to be detected regularly.
At present, a pipeline diameter measuring device generally uses a diameter measuring disc structure for detection, the diameter measuring disc is made of aluminum materials, and an outer edge processing gap is divided into 8 sections. When the deformation position is met, collision is generated, the diameter measuring disc is subjected to plastic deformation, the deformation condition of the pipeline is judged according to the deformation, the precision of the diameter measuring device is low, the diameter measuring device does not have a data acquisition function, and the specific deformation and the deformation position of the pipeline cannot be accurately judged, so that the evaluation accuracy is reduced, and the risk of the follow-up inner detector during operation is increased.
Before the inner detector is operated, the pipeline needs to be cleaned and the diameter is measured, and the diameter measurement result is evaluated to judge whether the pipeline meets the operation requirement of the inner detector. Therefore, the diameter measuring detector with higher precision is used for facilitating more accurate evaluation of the condition of the pipeline and reducing the operation risk of internal detection in the pipeline.
Disclosure of Invention
In order to solve the technical problem, the application provides a novel diameter measuring probe for a pipeline detector.
A novel diameter measuring probe for a pipeline detector comprises a probe assembly, a diameter measuring sensor, a base assembly, a torsion spring structure, a rotating shaft and a magnet; the utility model discloses a probe assembly, including probe arm and wear-resisting piece, probe arm's top sets up the bulge, wear-resisting piece is fixed to be set up on the bulge, the bottom of probe arm is provided with the pivot hole, the pivot passes through the pivot hole with the probe assembly is connected, be provided with waist shape hole on the probe arm, the one end setting of torsional spring structure is in waist shape hole, the other end of torsional spring structure with the base assembly is connected, the setting of caliper sensor is in one side position of base assembly, the one end of pivot is provided with the locating hole, magnet is the cylinder structure, magnet embedding extremely in the locating hole, magnet with the pivot sets up with one heart.
Further, the base assembly comprises a probe base and a sensor base, the probe base is connected with the sensor base through screws, a first groove is formed in the probe base, a second groove is formed in the sensor base, the first groove and the second groove are arranged coaxially, and the rotating shaft penetrates through the first groove and the second groove respectively to form a simply supported beam structure.
Further, the torsional spring include the torsional spring body and with the tourus is connected to the bottom of torsional spring body, the top of torsional spring body is provided with curved arm end, the joint department of tourus extends to form straight arm end.
Furthermore, a slotted hole is formed in one side of the sensor base, and the diameter measuring sensor is fixedly arranged in the slotted hole.
Furthermore, a deep hole is formed in one side of the probe base, and the torsion spring structure is connected with the probe base through the deep hole.
Furthermore, the outer sides of the probe base and the sensor base are respectively provided with an opening end.
Furthermore, a shaft body is arranged on the sensor base, and the annular ring body is arranged on the shaft body.
The application provides a novel diameter measuring probe for a pipeline detector, which comprises a probe assembly, a diameter measuring sensor, a base assembly, a torsion spring structure, a rotating shaft and a magnet; the utility model discloses a probe assembly, including probe arm and wear-resisting piece, probe arm's top sets up the bulge, wear-resisting piece is fixed to be set up on the bulge, the bottom of probe arm is provided with the pivot hole, the pivot passes through the pivot hole with the probe assembly is connected, be provided with waist shape hole on the probe arm, the one end setting of torsional spring structure is in waist shape hole, the other end of torsional spring structure with the base assembly is connected, the setting of caliper sensor is in one side position of base assembly, the one end of pivot is provided with the locating hole, magnet is the cylinder structure, magnet embedding extremely in the locating hole, magnet with the pivot sets up with one heart. One end of the probe arm is connected with a wear-resistant sheet, the wear-resistant sheet is in contact with the inner wall of the pipeline, the other end of the probe arm is connected with a probe rotating shaft, the rotating shaft and the probe arm are relatively fixed, and when the wear-resistant sheet is in contact with the pipeline and deforms, the probe arm can drive the rotating shaft to rotate; the probe base is responsible for fixing the diameter measuring probe assembly on the pipeline internal detector, one side of the probe base uses epoxy resin to seal and glue the fixed diameter measuring sensor, the sensor chip is just to the pivot center, cylindrical magnet is inlayed at the probe pivot center, can drive magnet together rotatory when the pivot is rotatory, the rotation angle can be gathered to the diameter measuring sensor, combine probe arm length to calculate pipeline deflection numerical value, calculate probe arm and push down the volume promptly pipeline inner wall deflection, this diameter measuring probe volume is less, through the characteristic between the structure and the cooperation of diameter measuring sensor, reach the high accuracy and detect, can record pipeline deformation data, be applicable to before the delivery and at the detection of labour pipeline.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic structural diagram of a main body of a novel diameter measuring probe for a pipeline detector provided by the present application.
Fig. 2 is a schematic side structure view of a novel diameter measuring probe for a pipeline detector provided by the present application.
Fig. 3 is a schematic structural diagram of a probe assembly provided in the present application.
Fig. 4 is a diagram of a positional relationship between a rotating shaft and a magnet according to the present application.
Fig. 5 is a schematic structural diagram of a base assembly provided in the present application.
Fig. 6 is a schematic front structural view of a torsion spring structure provided in the present application.
Fig. 7 is a schematic side view of the torsion spring structure provided in the present application.
FIG. 8 is a diagram of the position relationship between the open end and the base assembly provided in the present application.
Fig. 9 is a diagram illustrating a positional relationship between a sensor base and a shaft according to the present application.
The sensor comprises a probe assembly, a diameter measuring sensor 2, a base assembly 3, a torsion spring structure 4, a rotating shaft 5, a magnet 6, a probe arm 11, a wear-resistant sheet 12, a waist-shaped hole 13, a probe base 31, a sensor base 32, an opening end 33, a shaft body 34, a torsion spring body 41, a circular ring body 42, a bent arm end 43, a straight arm end 44, a positioning hole 51, a bulge 111, a rotating shaft hole 112, a first groove 311, a second groove 312, a deep hole 313 and a slotted hole 321.
Detailed Description
Referring to fig. 1, a schematic structural diagram of a main body of a novel diameter measuring probe for a pipeline detector is provided in the present application. Referring to fig. 2, a schematic side structure view of a novel diameter measuring probe for a pipeline detector provided by the present application is shown. Referring to fig. 3, a schematic structural diagram of a probe assembly provided in the present application is shown.
A novel diameter measuring probe for a pipeline detector comprises a probe assembly 1, a diameter measuring sensor 2, a base assembly 3, a torsion spring structure 4, a rotating shaft 5 and a magnet 6; the probe assembly 1 comprises a probe arm 11 and a wear-resistant sheet 12, wherein the probe arm 11 is used for copying the diameter change of the inner wall of the pipeline and changing the linear change value of the pipeline into an angle change value. The probe arm 11 is in a structure with a narrow top and a wide bottom in practical application, so that the strength of the probe arm is guaranteed, the length of the probe arm 11 is changeable, the length of the probe arm can be changed according to different diameters of pipelines, when the probe arm is too long, the number of probes in contact with the pipelines is influenced, and preferably, two rows or multiple rows of diameter measuring probe assemblies are arranged on the detector. Meanwhile, the probe arm 11 is not directly contacted with the inner wall of the pipeline through the structure of the wear-resistant piece 12, the convex part 111 is arranged at the top of the probe arm 11, the wear-resistant piece 12 is fixedly arranged on the convex part 111, the wear-resistant piece 12 and the convex part 111 are fixed through a screw, the wear-resistant piece is quenched by adopting an alloy steel material, and the surface of the wear-resistant piece 12 is coated with a wear-resistant coating, so that the maintenance function can be realized under the condition that the probe is not damaged, and the purpose of independent replacement is achieved; meanwhile, the hardness of the wear-resistant sheet 12 should be greater than that of a pipeline material, a rotating shaft hole 112 is formed in the bottom of the probe arm 11, the rotating shaft 5 is connected with the probe assembly 1 through the rotating shaft hole 112, specifically, the rotating shaft 5 is fixed to the probe arm 11, a waist-shaped hole 13 is formed in the probe arm 11, one end of the torsion spring structure 4 is arranged in the waist-shaped hole 13, the probe arm 11 can slide in the waist-shaped hole 13 to drive the probe arm 11 to reset, the other end of the torsion spring structure 4 is connected with the base assembly 3, the diameter measuring sensor 2 is arranged on one side of the base assembly 3, the diameter measuring sensor 2 is a sensor in the prior art, the diameter measuring sensor 2 is coaxially arranged with the rotating shaft 5, a positioning hole 51 is formed in one end of the rotating shaft 5, and the magnet 6 is of a cylindrical structure, the magnet 6 is embedded into the positioning hole 51, and the magnet 6 and the rotating shaft 5 are concentrically arranged, as shown in fig. 4, which is a position relation diagram of the rotating shaft and the magnet provided by the present application. The positioning holes 51 are used for embedding the magnets 6, so that the positions of the magnets 6 are more stable. Meanwhile, the sensor base is made of non-magnetic conductive materials, so that the accuracy of the measurement result is improved. The cylindrical magnet is axially magnetized, when the rotating shaft 5 rotates, the cylindrical magnet is driven to rotate together, magnetic lines of force of the magnet cut the diameter measuring sensor 2 at the moment, output voltage changes, and the rotating angle of the rotating shaft 5 can be correspondingly obtained according to the change value of the voltage.
Referring to fig. 5, a schematic structural diagram of a base assembly provided in the present application is shown.
Further, base assembly 3 comprises probe base 31 and sensor base 32, probe base 31 with sensor base 32 passes through screwed connection, and the screw is the screw of M4 type, be provided with first recess 311 on the probe base 31, be provided with second recess 312 on the sensor base 32, first recess 311 with second recess 312 is coaxial setting relatively, first recess 311 with unobstructed recess hole is constituteed to second recess 312, pivot 5 passes respectively first recess 311 with second recess 312 forms the simple beam structure, and then can increase the stability of probe arm 11.
Referring to fig. 6, a schematic front structural view of the torsion spring structure provided in the present application is shown. Referring to fig. 7, a schematic side view of the torsion spring structure provided in the present application is shown.
Further, the torsion spring 4 includes a torsion spring body 41 and a torus 42 connected to the bottom of the torsion spring body 41, the top of the torsion spring body 41 is provided with a bent arm end 43, and a joint of the torus 42 extends to form a straight arm end 44.
Furthermore, a slot hole 321 is formed in one side of the sensor base 32, and the diameter measuring sensor 2 is fixedly arranged in the slot hole 321. After the diameter measuring sensor 2 is arranged in the slot hole 321, epoxy resin is used for sealing and pouring glue for covering, and the thickness of the glue layer is larger than 1 mm.
Further, a deep hole 313 is formed in one side of the probe base 31, and the torsion spring structure 4 is connected with the probe base 31 through the deep hole 313.
Referring to fig. 8, a diagram of the position relationship between the open end and the base assembly is provided.
Further, the outer sides of the probe base 31 and the sensor base 32 are respectively provided with an opening end 33. Open end 33 is U type opening, through U type opening, can realize that the caliper probe of this application is fixed with various interior detector equipment of pipeline with the screw to reach the detection mesh.
Referring to fig. 9, a diagram of a position relationship between a sensor base and a shaft body is provided.
Further, a shaft 34 is disposed on the sensor base 32, and the torus 42 is disposed on the shaft 34. The circular ring body 42 of the torsion spring 4 is sleeved on the shaft body 34, the bent arm end 43 is hung in the waist-shaped hole 13, and the straight arm end 44 is inserted into the deep hole 313. Due to the structural design, the probe arm 11 can be vertical, and the torsion spring can properly increase the strength to achieve the best detection effect in order to obtain more stable data.
The application provides a novel diameter measuring probe for a pipeline detector, which comprises a probe assembly, a diameter measuring sensor, a base assembly, a torsion spring structure, a rotating shaft and a magnet; the utility model discloses a probe assembly, including probe arm and wear-resisting piece, probe arm's top sets up the bulge, wear-resisting piece is fixed to be set up on the bulge, the bottom of probe arm is provided with the pivot hole, the pivot passes through the pivot hole with the probe assembly is connected, be provided with waist shape hole on the probe arm, the one end setting of torsional spring structure is in waist shape hole, the other end of torsional spring structure with the base assembly is connected, the setting of caliper sensor is in one side position of base assembly, the one end of pivot is provided with the locating hole, magnet is the cylinder structure, magnet embedding extremely in the locating hole, magnet with the pivot sets up with one heart. One end of the probe arm is connected with a wear-resistant sheet, the wear-resistant sheet is in contact with the inner wall of the pipeline, the other end of the probe arm is connected with a probe rotating shaft, the rotating shaft and the probe arm are relatively fixed, and when the wear-resistant sheet is in contact with the pipeline and deforms, the probe arm can drive the rotating shaft to rotate; the probe base is responsible for fixing the diameter measuring probe assembly on the pipeline internal detector, one side of the probe base uses epoxy resin to seal and glue the fixed diameter measuring sensor, the sensor chip is just to the pivot center, cylindrical magnet is inlayed at the probe pivot center, can drive magnet together rotatory when the pivot is rotatory, the rotation angle can be gathered to the diameter measuring sensor, combine probe arm length to calculate pipeline deflection numerical value, calculate probe arm and push down the volume promptly pipeline inner wall deflection, this diameter measuring probe volume is less, through the characteristic between the structure and the cooperation of diameter measuring sensor, reach the high accuracy and detect, can record pipeline deformation data, be applicable to before the delivery and at the detection of labour pipeline.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (7)

1. A novel diameter measuring probe for a pipeline detector is characterized by comprising a probe assembly (1), a diameter measuring sensor (2), a base assembly (3), a torsion spring structure (4), a rotating shaft (5) and a magnet (6); the probe assembly (1) comprises a probe arm (11) and a wear-resistant sheet (12), a convex part (111) is arranged at the top of the probe arm (11), the wear-resistant sheet (12) is fixedly arranged on the convex part (111), a rotating shaft hole (112) is arranged at the bottom of the probe arm (11), the rotating shaft (5) is connected with the probe assembly (1) through the rotating shaft hole (112), a waist-shaped hole (13) is arranged on the probe arm (11), one end of a torsion spring structure (4) is arranged in the waist-shaped hole (13), the other end of the torsion spring structure (4) is connected with the base assembly (3), the diameter measuring sensor (2) is arranged at one side position of the base assembly (3), a positioning hole (51) is arranged at one end of the rotating shaft (5), the magnet (6) is of a cylindrical structure, and the magnet (6) is embedded into the positioning hole (51), the magnet (6) and the rotating shaft (5) are arranged concentrically.
2. The novel diameter measuring probe for the pipeline detector is characterized in that the base assembly (3) is composed of a probe base (31) and a sensor base (32), the probe base (31) is connected with the sensor base (32) through screws, a first groove (311) is formed in the probe base (31), a second groove (312) is formed in the sensor base (32), the first groove (311) and the second groove (312) are arranged coaxially, and the rotating shaft (5) penetrates through the first groove (311) and the second groove (312) respectively to form a simply supported beam structure.
3. The novel diameter measuring probe for the pipeline detector is characterized in that the torsion spring (4) comprises a torsion spring body (41) and a ring body (42) connected with the bottom of the torsion spring body (41), a bent arm end (43) is arranged at the top of the torsion spring body (41), and a straight arm end (44) is formed by extending the joint of the ring body (42).
4. The novel diameter measuring probe for the pipeline detector as claimed in claim 2, wherein a slot hole (321) is formed in one side of the sensor base (32), and the diameter measuring sensor (2) is fixedly arranged in the slot hole (321).
5. The novel diameter measuring probe for the pipeline detector as claimed in claim 2, wherein a deep hole (313) is formed in one side of the probe base (31), and the torsion spring structure (4) is connected with the probe base (31) through the deep hole (313).
6. The novel diameter measuring probe for the pipeline detector as claimed in claim 2, wherein the outer sides of the probe base (31) and the sensor base (32) are respectively provided with an open end (33).
7. The novel diameter measuring probe for the pipeline detector as claimed in claim 3, wherein a shaft body (34) is arranged on the sensor base (32), and the ring body (42) is arranged on the shaft body (34).
CN202010359772.XA 2020-04-30 Novel diameter measuring probe for pipeline detector Active CN111351463B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010359772.XA CN111351463B (en) 2020-04-30 Novel diameter measuring probe for pipeline detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010359772.XA CN111351463B (en) 2020-04-30 Novel diameter measuring probe for pipeline detector

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Publication Number Publication Date
CN111351463A true CN111351463A (en) 2020-06-30
CN111351463B CN111351463B (en) 2024-07-09

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06147806A (en) * 1991-07-18 1994-05-27 Toshiro Higuchi Method and apparatus for measuring profile
US20040111910A1 (en) * 2001-04-02 2004-06-17 Yasushi Yonemura Method and instrument for measuring inside diameter of conduit
US20050120812A1 (en) * 2002-03-13 2005-06-09 Emil Edwin Apparatus for inspecting deformation of pipes
DE102004057462A1 (en) * 2004-11-27 2006-06-01 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Cylindrical units`s measured data evaluating method, involves using three sensors fixedly arranged in support for two distance measurements in same plane of cylinder unit, and rotating support at angle alpha about longitudinal axis of unit
CN203395599U (en) * 2013-08-19 2014-01-15 中国石化集团胜利石油管理局海上石油工程技术检验中心 Pipeline detector with diameter-varying function
CN204374170U (en) * 2014-12-25 2015-06-03 中国石油天然气集团公司 A kind of magnet sonde configuration adapting to tapered pipeline
KR101581694B1 (en) * 2014-11-13 2016-01-04 승리전력기술(주) Device for measuring deformation of pipe route
WO2017181395A1 (en) * 2016-04-21 2017-10-26 深圳市樊溪电子有限公司 Magnet probe structure adaptable to pipe with variable diameter
CN206930619U (en) * 2017-04-28 2018-01-26 中石化石油工程技术服务有限公司 Detection means in a kind of pipe-line
CN208296813U (en) * 2018-04-27 2018-12-28 福建中海油应急抢维修有限责任公司 It is a kind of to calibrate pigging device with timer and deformation logger
CN208704709U (en) * 2018-08-31 2019-04-05 承德鑫马测试仪器有限公司 Ring stiffness inner diameter measuring device
CN211783386U (en) * 2020-04-30 2020-10-27 沈阳仪表科学研究院有限公司 Novel diameter measuring probe for pipeline detector

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06147806A (en) * 1991-07-18 1994-05-27 Toshiro Higuchi Method and apparatus for measuring profile
US20040111910A1 (en) * 2001-04-02 2004-06-17 Yasushi Yonemura Method and instrument for measuring inside diameter of conduit
US20050120812A1 (en) * 2002-03-13 2005-06-09 Emil Edwin Apparatus for inspecting deformation of pipes
DE102004057462A1 (en) * 2004-11-27 2006-06-01 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Cylindrical units`s measured data evaluating method, involves using three sensors fixedly arranged in support for two distance measurements in same plane of cylinder unit, and rotating support at angle alpha about longitudinal axis of unit
CN203395599U (en) * 2013-08-19 2014-01-15 中国石化集团胜利石油管理局海上石油工程技术检验中心 Pipeline detector with diameter-varying function
KR101581694B1 (en) * 2014-11-13 2016-01-04 승리전력기술(주) Device for measuring deformation of pipe route
CN204374170U (en) * 2014-12-25 2015-06-03 中国石油天然气集团公司 A kind of magnet sonde configuration adapting to tapered pipeline
WO2017181395A1 (en) * 2016-04-21 2017-10-26 深圳市樊溪电子有限公司 Magnet probe structure adaptable to pipe with variable diameter
CN206930619U (en) * 2017-04-28 2018-01-26 中石化石油工程技术服务有限公司 Detection means in a kind of pipe-line
CN208296813U (en) * 2018-04-27 2018-12-28 福建中海油应急抢维修有限责任公司 It is a kind of to calibrate pigging device with timer and deformation logger
CN208704709U (en) * 2018-08-31 2019-04-05 承德鑫马测试仪器有限公司 Ring stiffness inner diameter measuring device
CN211783386U (en) * 2020-04-30 2020-10-27 沈阳仪表科学研究院有限公司 Novel diameter measuring probe for pipeline detector

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