CN113029774A - Sensor support and sensor device using same - Google Patents

Sensor support and sensor device using same Download PDF

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Publication number
CN113029774A
CN113029774A CN202010508753.9A CN202010508753A CN113029774A CN 113029774 A CN113029774 A CN 113029774A CN 202010508753 A CN202010508753 A CN 202010508753A CN 113029774 A CN113029774 A CN 113029774A
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CN
China
Prior art keywords
pushing
glue solution
support body
shank portion
eccentric wheel
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Granted
Application number
CN202010508753.9A
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Chinese (zh)
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CN113029774B (en
Inventor
张勇
王祥瑞
党聚涛
杨欣
李坤岐
王琼
贾静
陈国银
邵景干
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Henan Niupa Institute of Mechanical Engineering
Henan Jiaoyuan Engineering Technology Co Ltd
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Henan Niupa Institute of Mechanical Engineering
Henan Jiaoyuan Engineering Technology Co Ltd
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Priority to CN202010508753.9A priority Critical patent/CN113029774B/en
Publication of CN113029774A publication Critical patent/CN113029774A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/32—Measuring 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0003—Steady
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0019—Compressive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058—Kind of property studied
    • G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
    • G01N2203/0075—Strain-stress relations or elastic constants
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/067—Parameter measured for estimating the property
    • G01N2203/0682—Spatial dimension, e.g. length, area, angle

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The invention relates to a sensor support and a sensor device using the same, which comprises a support body, wherein the upper end of the support body is provided with an adhesive connecting surface for adhesive connection with a measured piece, a pushing eccentric wheel is rotatably assembled on the support body, the support body is also provided with a driving motor for driving the pushing eccentric wheel to rotate, the pushing eccentric wheel is provided with a pushing surface for being in pushing fit with the measured piece to separate the adhesive connecting surface from the measured piece, and the pushing eccentric wheel has a low position lower than the adhesive connecting surface and a high position higher than the adhesive connecting surface in the rotating process to realize the pushing fit of the pushing surface and the measured piece. The sensor support dismantling device solves the technical problem that in the prior art, the sensor support needs to be dismantled manually, so that time and labor are wasted.

Description

Sensor support and sensor device using same
Technical Field
The invention relates to a sensor support and a sensor device using the same in the field of bridge performance detection.
Background
Newly-built bridge and the bridge after having carried out reinforcement or reconstruction, whether normal operating condition and bearing capacity of bridge structures meet the design requirement can be examined through the load test.
It is common practice to pass a vehicle under a certain load through a bridge and then measure the strain, deflection and inclination deformation of the bridge according to corresponding sensors on the bridge. For example, for strain measurement, a surface sensor device is fixed on the bottom surface of a beam, wherein the sensor device is matched with the beam as shown in fig. 1, the sensor device comprises two fixing legs 2 which are independently arranged, fixing holes for the corresponding fixing legs to pass through are respectively arranged on the body of a strain gauge 3, when in specific operation, a worker is lifted to the lower side of the beam body 1 through a lifting machine, the worker measures the distance between the two fixing legs 2 on the bottom surface of the beam, then the fixing legs are bonded and fixed on the bottom surface of the beam, finally the strain gauge 3 is sleeved on the fixing legs, and the sensor device is fixed on the supporting legs through screwing nuts 4 on screw rods 5 of the fixing legs. When the beam is deformed by a load, the distance between the two legs changes, and the sensor device measures the amount of change.
That is to say, the sensor support needs link to each other with the roof beam body bottom surface through sticky mode, and this just requires to use climbing mechanism to jack up people to roof beam body bottom after the sensor uses, and operating personnel is dismantling the sensor support manually, and manual demolising the sensor support needs carry out high altitude construction, wastes time and energy.
Disclosure of Invention
The invention aims to provide a sensor support, which aims to solve the technical problem that the sensor support needs to be manually dismantled, so that time and labor are wasted; it is also an object of the present invention to provide a sensor device using the sensor mount.
In order to solve the technical problems, the technical scheme of the sensor support is as follows:
the utility model provides a sensor support, includes the support body, support body upper end has and is used for with the bonding connection face that links to each other by measurand piece bonding, rotates on the support body and is equipped with the top and pushes away the eccentric wheel, the support body still is provided with the drive and pushes away eccentric wheel pivoted driving motor, the top pushes away the eccentric wheel have be used for with measurand push away the cooperation so that the bonding connection face with the top that measurand piece separated pushes away the face, the top pushes away the eccentric wheel and has the position at the rotation in-process and be less than the bonding connection face low level and the position are higher than the bonding connection face and realize pushing away.
The left side and the right side of the support body are provided with mounting grooves, and the pushing eccentric wheels are arranged in the mounting grooves.
The support body is including controlling first shank portion and the second shank portion of arranging, and the bonding connection face sets up in the upper end of first shank portion and second shank portion, is provided with storage capsule on first shank portion, the second shank portion, and the upper end of storing up the capsule is higher than the bonding connection face and be used for being extruded by the measuring part, is connected with the glue solution passageway on the storage capsule, and the glue solution passageway is provided with the breakable membrane including being located the glue solution outlet hole on the bonding connection face and connecting the connection passageway of glue solution outlet hole and storage capsule on the glue solution passageway.
The glue solution outlet is a big belly hole with a small upper part and a big lower part.
The technical scheme of the sensor device in the invention is as follows:
sensor device, including the sensor support, the sensor support includes the support body, and support body upper end has and is used for with to be measured bonding connection face that links to each other, rotates on the support body and is equipped with the top and pushes away the eccentric wheel, and the support body still is provided with the drive and pushes away eccentric wheel pivoted driving motor, pushes away the eccentric wheel have be used for with to be measured a top to push away the cooperation so that bonding connection face with the top that is measured a separation pushes away the face, push away the eccentric wheel and have the position at the rotation in-process and be less than bonding connection face's low level and position are higher than bonding connection face and realize pushing away the face and push.
The left side and the right side of the support body are provided with mounting grooves, and the pushing eccentric wheels are arranged in the mounting grooves.
The support body is including controlling first shank portion and the second shank portion of arranging, and the bonding connection face sets up in the upper end of first shank portion and second shank portion, is provided with storage capsule on first shank portion, the second shank portion, and the upper end of storing up the capsule is higher than the bonding connection face and be used for being extruded by the measuring part, is connected with the glue solution passageway on the storage capsule, and the glue solution passageway is provided with the breakable membrane including being located the glue solution outlet hole on the bonding connection face and connecting the connection passageway of glue solution outlet hole and storage capsule on the glue solution passageway.
The glue solution outlet is a big belly hole with a small upper part and a big lower part.
The invention has the beneficial effects that: in the invention, in the process of bonding and connecting the bonding and connecting surface of the sensor support and the measured part, the pushing eccentric wheel is at a low position with the height lower than that of the bonding and connecting surface, and the pushing eccentric wheel does not influence the process of connecting the bonding and connecting surface and the measured part; after detection is finished, when the sensor support is required to be separated from a measured part, the pushing eccentric wheel rotates to a high position higher than the bonding connection surface, and the pushing surface and the measured part are in pushing fit to enable the bonding connection surface to be separated from the measured part, so that the operator is prevented from performing high-altitude operation again, and the working strength of the operator is reduced.
Drawings
FIG. 1 is a schematic diagram of a strain gauge and a beam in the background art of the present invention;
FIG. 2 is a schematic structural view of one embodiment of a sensor device of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a schematic diagram of the sensor device of the present invention in cooperation with a drone;
fig. 5 is a schematic view of the sensor device of the present invention in cooperation with a beam.
Detailed Description
Embodiments of the sensor device are shown in FIGS. 2-5:
including the sensor support, the sensor support includes the support body, and the support body is including controlling first shank portion 1 and the second shank portion 2 of arranging, and first shank portion 1 removes the cooperation along left right direction and the direction of second shank portion 2 direction, has seted up the guiding hole 14 that the direction of direction extends along left right direction on the specific second shank portion, first shank portion have stretch into the guiding hole with guiding hole direction sliding fit's guide bar 13. The right end face of the first leg part forms a top abutting positioning face 20 which is used for abutting the matched top with the second leg part, a positioning spring 15 is arranged in the guide hole, the positioning spring 15 is an extension spring, the right end of the positioning spring is fixedly connected with the hole bottom of the guide hole, the left end of the positioning spring is fixedly connected with the guide rod 13, the positioning spring 15 exerts a right-facing pulling force on the first leg part 1, and it is guaranteed that the top abutting positioning face 20 on the first leg part 1 abuts against the second leg part 2 in a free state. A displacement measuring mechanism for measuring the relative displacement change of the first leg part and the second leg part is arranged between the first leg part 1 and the second leg part 2, in the embodiment, the displacement measuring mechanism is a stay cord displacement sensor 3, the displacement measuring mechanism comprises a flexible measuring part 4, one end of the flexible measuring part 4 is fixed on the first leg part, a measuring part winding drum 5 for winding the other end of the flexible measuring part is arranged on the second leg part, the displacement measuring mechanism further comprises a drum encoder for detecting the rotation of the measuring part winding drum, and a drum spring for tensioning the flexible measuring part is connected on the measuring part winding drum.
In order to adapt to the connection with the bottom surface of the beam body of the bridge, the upper end surfaces of the first leg part and the second leg part are adhesive connection surfaces 11 used for being adhesively connected with the measured piece. The left shoulder on the first leg portion and the right shoulder of second leg portion are provided with mounting groove 7, first leg portion, all be provided with the storage capsule 8 that is used for storing the glue solution in the mounting groove of second leg portion, the upper end of storage capsule 8 is higher than adhesive bonding face 11 and is used for being extruded by the measured part, be connected with the glue solution passageway on the storage capsule, the glue solution passageway is including being located glue solution outlet 10 on the adhesive bonding face and connecting the glue solution outlet 10 and the passageway 12 that is connected capsule 8, glue solution outlet 10 is big tripe hole from top to bottom, be provided with breakable membrane 9 on the glue solution passageway, breakable membrane 9 sets up in the aperture department of glue solution outlet 10 in this embodiment. In this embodiment, there are a plurality of glue outlets 10 on the first leg portion and the second leg portion, and the glue outlets on the same leg portion are connected by a connecting channel 12.
The mounting grooves 7 of the first leg part and the second leg part are also rotatably provided with pushing eccentric wheels 6, the pushing eccentric wheels are driven by a motor and are provided with pushing surfaces 21 which are used for being in pushing fit with a measured part to separate a bonding connection surface from the measured part, and the pushing eccentric wheels are provided with a low position lower than the bonding connection surface and a high position higher than the bonding connection surface in the rotating process to realize the pushing fit between the pushing surfaces and the measured part. The sensor device can be pushed and separated from the lower side of the beam body by clockwise rotation of the pushing eccentric wheel 6 on the first leg part and anticlockwise rotation of the pushing eccentric wheel on the second leg part at the angle shown in figure 3. The glue solution outlet 10 is a big belly hole structure with a small upper part and a big lower part, the breakable membrane 9 is arranged at the hole opening of the glue solution outlet 10, so that the breakable membrane can be torn by pressure, after the glue solution is solidified, the solidified glue solution, namely the bonding structure, is filled on the glue solution outlet and the bonding connection surface, the solidified glue solution and the leg part have blocking forces of the small upper part and the big lower part besides the bonding force, when the sensor device is separated from the bottom of the beam body, the bonding structure is separated from the bottom of the beam along with the sensor device, and the problem that the surface of the bottom of the beam needs to be cleaned again by high-altitude operation due to the fact that the bonding.
When the sensor device of the present invention is not fixed to the bottom of the beam body, as shown in fig. 2, under the action of the positioning spring, the abutting positioning surface 20 on the right side of the first leg part 1 abuts against the left end of the second leg part 2, which is the measurement zero point of the displacement measuring mechanism, and the positioning spring also connects the first leg part and the second leg part into a whole.
In the actual bridge, the downside that has a lot of bridges all is water, can't set up elevating system, can't send the bottom of bridge to the staff, even can set up elevating system some places, high altitude construction also is a challenge to staff's psychology. In order to completely free workers, the gluing fixing and dismounting of the sensor device are set to be automatic, so that the sensor device can be mounted by means of some jacking mechanisms. For example, the sensor device is fixed at the bottom of the beam 19 by the unmanned aerial vehicle 17, as shown in fig. 4, a support frame 16 is placed at the top of a housing 18 of the unmanned aerial vehicle, a positioning groove 22 is formed at the top of the support frame, the sensor device is placed in the positioning groove 22, the unmanned aerial vehicle drives the whole sensor device to fly upwards until the bonding surface is contacted with the bottom surface of the beam, in the process, the capsule is compressed, the pressure of the glue solution in the connecting channel is increased, the breakable membrane is broken, the glue solution flows to the whole bonding surface through an orifice, so as to ensure the fixation of the bonding surface and the bottom of the beam, the glue solution outlet is a big belly hole, on one hand, the breakable membrane can be smoothly broken, in addition, after the glue solution is solidified, a blocking structure is formed by the glue solution and the big belly hole, the fixing strength of the sensor device and the beam can be ensured, the glue solution can reach 85% of the curing strength only by pushing the unmanned aerial vehicle for 5-30 seconds, and then the unmanned aerial vehicle can be evacuated and can reach 100% of the curing strength of the glue solution after standing for one day. After a load is applied to the upper side of the bridge, the beam body deforms, the first leg portion and the second leg portion overcome the acting force of the positioning spring to generate relative displacement, and the stay rope displacement sensor measures the displacement value to obtain the strain of the beam body. After the detection, motor drive pushes away the eccentric wheel and rotates, thereby the top pushes away the beam body and realizes the separation of first shank, second shank and the beam body, and the sensor device drops, can catch the sensor device through the string bag, prevents that the sensor device from breaking, perhaps accepts the sensor device with unmanned aerial vehicle earlier, and the top pushes away the eccentric wheel action again, takes off the sensor device by pushing up on the beam body.
In other embodiments of the invention: the positioning spring can also be a pressure spring, and the pressure spring applies acting force towards the right direction to the first leg part, so that the propping positioning surface of the first leg part props against the second leg part in a natural state; the displacement measuring mechanism may not be a stay wire displacement sensor, for example, the displacement measuring mechanism is a laser displacement sensor disposed between the first leg portion and the second leg portion; the sensor device can also be jacked to the bottom of the beam body through other jacking mechanisms, for example, the sensor device is jacked to the bottom of the beam body through a lifting vehicle; the positioning spring may also be replaced by a magnetic structure, for example, the magnetic mechanism includes a first magnetic body disposed on the first leg portion and a second magnetic body disposed on the second leg portion, and the first magnetic body and the second magnetic body attract each other, so that the abutting positioning surface of the first leg portion always abuts against the second leg portion before the first leg portion is not fixed; the pushing eccentric wheel can also not be arranged in the mounting groove, for example, the pushing eccentric wheel is arranged on the side surface of the support body; the sensor means may also be other than strain sensor means, such as tilt sensors, displacement sensors, etc.
Embodiments of the sensor mount are shown in FIGS. 2-5: the specific structure of the sensor holder is the same as that described in the above-described embodiments of the sensor device, and will not be described in detail here.

Claims (8)

1. The utility model provides a sensor support, includes the support body, support body upper end has and is used for connecting the face, its characterized in that with bonding that links to each other by measurand bonding: the support body is provided with a pushing eccentric wheel in a rotating mode, the support body is further provided with a driving motor for driving the pushing eccentric wheel to rotate, the pushing eccentric wheel is provided with a pushing surface which is used for being matched with a measured piece in a pushing mode so that a bonding connection surface is separated from the measured piece, and the pushing eccentric wheel is provided with a low position lower than the bonding connection surface and a high position higher than the bonding connection surface in the rotating process so that the pushing surface is matched with the measured piece in a pushing mode.
2. The sensor holder according to claim 1, wherein: the left side and the right side of the support body are provided with mounting grooves, and the pushing eccentric wheels are arranged in the mounting grooves.
3. The sensor holder according to claim 1, wherein: the support body is including controlling first shank portion and the second shank portion of arranging, and the bonding connection face sets up in the upper end of first shank portion and second shank portion, is provided with storage capsule on first shank portion, the second shank portion, and the upper end of storing up the capsule is higher than the bonding connection face and be used for being extruded by the measuring part, is connected with the glue solution passageway on the storage capsule, and the glue solution passageway is provided with the breakable membrane including being located the glue solution outlet hole on the bonding connection face and connecting the connection passageway of glue solution outlet hole and storage capsule on the glue solution passageway.
4. The sensor holder according to claim 3, wherein: the glue solution outlet is a big belly hole with a small upper part and a big lower part.
5. Sensor device, including the sensor support, the sensor support includes the support body, and support body upper end has and is used for bonding the face of connecting its characterized in that with being surveyed the bonding of measuring piece: the support body is provided with a pushing eccentric wheel in a rotating mode, the support body is further provided with a driving motor for driving the pushing eccentric wheel to rotate, the pushing eccentric wheel is provided with a pushing surface which is used for being matched with a measured piece in a pushing mode so that a bonding connection surface is separated from the measured piece, and the pushing eccentric wheel is provided with a low position lower than the bonding connection surface and a high position higher than the bonding connection surface in the rotating process so that the pushing surface is matched with the measured piece in a pushing mode.
6. The sensor device of claim 5, wherein: the left side and the right side of the support body are provided with mounting grooves, and the pushing eccentric wheels are arranged in the mounting grooves.
7. The sensor device of claim 5, wherein: the support body is including controlling first shank portion and the second shank portion of arranging, and the bonding connection face sets up in the upper end of first shank portion and second shank portion, is provided with storage capsule on first shank portion, the second shank portion, and the upper end of storing up the capsule is higher than the bonding connection face and be used for being extruded by the measuring part, is connected with the glue solution passageway on the storage capsule, and the glue solution passageway is provided with the breakable membrane including being located the glue solution outlet hole on the bonding connection face and connecting the connection passageway of glue solution outlet hole and storage capsule on the glue solution passageway.
8. The sensor device of claim 7, wherein: the glue solution outlet is a big belly hole with a small upper part and a big lower part.
CN202010508753.9A 2020-06-06 2020-06-06 Sensor support and sensor device using same Active CN113029774B (en)

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CN2669133Y (en) * 2003-12-19 2005-01-05 长安大学 Double cantilever concrete structure strain measuring meter
CN105121868A (en) * 2013-04-09 2015-12-02 格拉贝特股份有限公司 Device and method for forming an adhesive connection between an article and a support
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CN111085391A (en) * 2020-01-19 2020-05-01 河南中烟工业有限责任公司 Glue supply device of plug assembler
CN212158646U (en) * 2020-06-06 2020-12-15 河南交院工程技术有限公司 Sensor device and sensor support thereof
CN212158515U (en) * 2020-06-06 2020-12-15 河南交院工程技术有限公司 Sensor holder and sensor device using the same
CN111780707B (en) * 2020-06-06 2021-12-14 河南交院工程技术集团有限公司 Strain measuring device
CN111780708B (en) * 2020-06-06 2021-12-14 河南交院工程技术集团有限公司 Strain gauge
CN111780806B (en) * 2020-06-06 2022-04-01 河南交院工程技术集团有限公司 Sensor and sensor support thereof
CN111780792B (en) * 2020-06-06 2022-05-06 河南交院工程技术集团有限公司 Method for mounting measuring piece for bridge detection
CN113019811B (en) * 2020-06-06 2022-08-09 河南交院工程技术集团有限公司 Sensor device and sensor support thereof

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2669133Y (en) * 2003-12-19 2005-01-05 长安大学 Double cantilever concrete structure strain measuring meter
CN105121868A (en) * 2013-04-09 2015-12-02 格拉贝特股份有限公司 Device and method for forming an adhesive connection between an article and a support
CN204978362U (en) * 2015-09-15 2016-01-20 王历鑫 Girder track and van
CN105500696A (en) * 2016-01-08 2016-04-20 中国科学院工程热物理研究所 Wind power blade tip lengthening method
CN108374436A (en) * 2018-03-30 2018-08-07 济南城建集团有限公司 It is a kind of to open easily well lid
CN110595657A (en) * 2019-09-23 2019-12-20 煤炭科学技术研究院有限公司 Small-aperture 16-component conical strain gauge
CN111085391A (en) * 2020-01-19 2020-05-01 河南中烟工业有限责任公司 Glue supply device of plug assembler
CN212158646U (en) * 2020-06-06 2020-12-15 河南交院工程技术有限公司 Sensor device and sensor support thereof
CN212158515U (en) * 2020-06-06 2020-12-15 河南交院工程技术有限公司 Sensor holder and sensor device using the same
CN111780707B (en) * 2020-06-06 2021-12-14 河南交院工程技术集团有限公司 Strain measuring device
CN111780708B (en) * 2020-06-06 2021-12-14 河南交院工程技术集团有限公司 Strain gauge
CN111780806B (en) * 2020-06-06 2022-04-01 河南交院工程技术集团有限公司 Sensor and sensor support thereof
CN111780792B (en) * 2020-06-06 2022-05-06 河南交院工程技术集团有限公司 Method for mounting measuring piece for bridge detection
CN113019811B (en) * 2020-06-06 2022-08-09 河南交院工程技术集团有限公司 Sensor device and sensor support thereof

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