CN108627289A - A kind of high sensitivity dynamometry ring sensor - Google Patents

A kind of high sensitivity dynamometry ring sensor Download PDF

Info

Publication number
CN108627289A
CN108627289A CN201810579270.0A CN201810579270A CN108627289A CN 108627289 A CN108627289 A CN 108627289A CN 201810579270 A CN201810579270 A CN 201810579270A CN 108627289 A CN108627289 A CN 108627289A
Authority
CN
China
Prior art keywords
measuring section
measuring
section
elastomer
sensing element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810579270.0A
Other languages
Chinese (zh)
Inventor
邓年春
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangxi University
Original Assignee
Guangxi University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangxi University filed Critical Guangxi University
Priority to CN201810579270.0A priority Critical patent/CN108627289A/en
Publication of CN108627289A publication Critical patent/CN108627289A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/20Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/24Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G01L1/242Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
    • G01L1/246Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre using integrated gratings, e.g. Bragg gratings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The invention discloses a kind of highly sensitive dynamometry ring sensors, including elastomer, the elastomer to be equipped with multiple measuring parts, and the measuring part includes generating the measuring section of consistent deformation and the sensing element on measuring section with elastomer;The measuring section includes the first measuring section and the second measuring section, and on the section of elastomer Impact direction, the sectional area of first measuring section is less than the sectional area of second measuring section;The sensing element is located on the first measuring section.In the present invention when elastomer deforms upon, the strain of the first measuring section and the second measuring section is different, and the big strain sensitivity of sectional area is poor, and the small strain sensitivity of sectional area is good;When sensing element is arranged on the first measuring section, then expand the strain sensitivity of sensor, and the sensibility of temperature is just the same, does not change, thus sensor accuracy class can be improved.

Description

A kind of high sensitivity dynamometry ring sensor
Technical field
The present invention relates to sensor fields, and in particular to a kind of high sensitivity dynamometry ring sensor.
Background technology
Prestress anchorage cable includes the structures such as hawser, rod iron, steel strand wires rope, is widely used in concrete pre-stress muscle, bridge Among the building engineering structures such as drag-line or hoist cable, rock soil anchor rope.Anchor cable force is evaluate prestress anchorage cable working condition one Important indicator often needs to carry out Suo Li monitoring in stretching process, long-term monitoring in real time is carried out during use.At present usually Anchor cable force is measured using dynamometry ring sensor, and dynamometry ring sensor be on elastomer install resistance strain gage, Fiber grating, vibrating wire sensor and obtain, when use, need to be pre-installed between anchorage and anchor plate.
Since the compression for a long time of dynamometry ring sensor acts on, and the height of sensor is higher, and the elastomer of sensor is safely Number is big, and the ess-strain of maximum range is small, is a microstrains up to a hundred.And temperature is 1.0 × 10 to the sensitivity coefficient of steel-5/ DEG C, The influence often spent is 10 μ ε, and when the temperature difference is more than 10 DEG C, then temperature influences to be 100 μ ε, it can be seen that the influence of temperature accounts for structure The microstrain accounting of itself is very big, although there are the temperature-compensating of reference sensor method, compensation effect is poor, influences to measure essence Degree.Therefore, it is necessary to provide a kind of dynamometry ring sensor that sensitivity is more increased.
Invention content
Present invention aims at:When for being measured to anchor cable force using dynamometry ring sensor, it is sensitive to there is measurement The problem of spending not enough, influencing measurement accuracy, provides a kind of highly sensitive dynamometry ring sensor, which has higher measurement Sensitivity disclosure satisfy that the measurement accuracy requirement of anchor cable force.
To achieve the goals above, the technical solution adopted by the present invention is:
A kind of high sensitivity dynamometry ring sensor, including elastomer, the elastomer is equipped with multiple measuring parts, described Measuring part includes generating the measuring section of consistent deformation and the sensing element on measuring section with elastomer;The measuring section packet The first measuring section and the second measuring section are included, on the section of elastomer Impact direction, the section of first measuring section Sectional area of the product less than second measuring section;The sensing element is located on the first measuring section.
By the way that multiple measuring parts are arranged on the elastomer of dynamometry ring sensor, which includes and bullet the present invention Property body generates the measuring section of consistent deformation and the sensing element on measuring section;And by the way that measuring section is set as including first Measuring section and the second measuring section, and on the section of elastomer Impact direction, the sectional area of the first measuring section are less than the The sectional area of two measuring sections, when elastomer deforms upon, the strain of the first measuring section and the second measuring section is different, is cut The big strain sensitivity of area is poor, and the small strain sensitivity of sectional area is good;When sensing element is arranged on the first measuring section, then Expand the strain sensitivity of sensor, and the sensibility of temperature is just the same, does not change, thus sensor measurement essence can be improved Degree.
It should be noted that for the measuring part that both ends are fixedly mounted, according to the strain calculation formula of measuring section:Wherein N is axial force, and E is elasticity modulus, and A is each measuring section perpendicular to elastomer Corresponding sectional area on Impact direction, since both ends installation axial force N sizes are the same, material elastic modulus E is the same, and is pacifying The total deformation filled in section is the same, but on the measuring section of different cross-sectional, the ratio for deforming distribution is different, so sectional area Size decides the strain of each measuring section, thus adjusts the size of each measuring section sectional area, can adjust the sensitive of sensor Degree or measuring range.The program has abandoned the sensitivity for changing sensor by adjusting sensing element and its packaging technology in the past Or the way of measuring range, and the program is implemented simply, implementation cost is low.
As the preferred embodiment of the present invention, there are one the first measuring sections on the measuring section, and the first measuring section is located at two Between a second measuring section.By the way that first measuring section is arranged on measuring section, and the first measuring section is located at two second surveys Between measuring section, since the sectional area of the first measuring section is less than the sectional area of the second measuring section, i.e. the measuring section is in the big centre in both ends Small structure, when measuring section both ends are fixed, since sensing element is arranged on the first measuring section, you can sensitive to promote measurement Degree, simultaneously because structural symmetry so that sensor manufacture and it is easy for installation, the first measuring section stress and deformation is more uniform, carries High measurement accuracy.
As the preferred embodiment of the present invention, first measuring section and/or the second measuring section are rod-like structure.When the first survey When measuring section and/or the second measuring section using rod-like structure, cross sectional shape rule, and the stress distribution on section is uniform, while energy Enough bear larger limit stress.
As the preferred embodiment of the present invention, first measuring section and/or the second measuring section are platy structure.Using plate When structure, cross sectional shape rule, and the stress distribution on section is uniform, while by reducing plate thickness size, reducing measuring section Occupied space after being connect with elastomer, and facilitate manufacture.
As the preferred embodiment of the present invention, the fixed part for fixing its position is additionally provided on the measuring section, being convenient for will The measuring section is attached fixation with elastomer.
As the preferred embodiment of the present invention, the fixed part is set to the end positions of measuring section, is convenient for the system of the measuring section It makes and installs.
As the preferred embodiment of the present invention, the fixed part is the mounting hole set on measuring section both ends.
As the preferred embodiment of the present invention, the sensing element is pasted on measuring section outer surface, facilitates the cloth of sensing element It sets.
As the preferred embodiment of the present invention, the sensing element is embedded in inside measuring section, can be formed to sensing element Preferable protection.
As the preferred embodiment of the present invention, the sensing element is resistance strain gage.
As the preferred embodiment of the present invention, the sensing element is fiber grating.
As the preferred embodiment of the present invention, all measuring parts are distributed in around elastomer, can be carried out to elastomer Multipoint Uniform measures, to improve the accuracy measured.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows:
1, the present invention by the way that multiple measuring parts are arranged on the elastomer of dynamometry ring sensor, the measuring part include with Elastomer generates the measuring section of consistent deformation and the sensing element on measuring section;And by the way that measuring section is set as including One measuring section and the second measuring section, and on the section of elastomer Impact direction, the sectional area of the first measuring section is less than The sectional area of second measuring section, when elastomer deforms upon, the strain of the first measuring section and the second measuring section be it is different, The big strain sensitivity of sectional area is poor, and the small strain sensitivity of sectional area is good;When sensing element is arranged on the first measuring section, Then expand the strain sensitivity of sensor, and the sensibility of temperature is just the same, does not change, thus sensor measurement can be improved Precision;
2, by being arranged first measuring section on measuring section, and the first measuring section be located at two the second measuring sections it Between, since the sectional area of the first measuring section is less than the sectional area of the second measuring section, i.e. the measuring section is in the knot of big at both ends and small in middle Structure, when measuring section both ends are fixed, since sensing element is arranged on the first measuring section, you can to promote measurement sensitivity, together When due to structural symmetry so that sensor manufacture and it is easy for installation, the first measuring section stress and deformation is more uniform, improve measure Accuracy;
When 3, by the way that the first measuring section and/or the second measuring section are used platy structure, cross sectional shape rule, and on section Stress distribution it is uniform, while by reduce plate thickness size, reduce occupied space after measuring section is connect with elastomer, and Facilitate manufacture.
Description of the drawings
Fig. 1 is the highly sensitive proving ring three-dimensional sensor figure in the present invention.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the measuring part schematic diagram in Fig. 1.
It is marked in figure:1- measuring sections, the first measuring sections of 11-, the second measuring sections of 12-, 2- sensing elements, 3- mounting holes, 4- Elastomer, 41- centre bores, 42- annular grooves.
Specific implementation mode
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not For limiting the present invention.
Embodiment 1
The present embodiment provides a kind of measuring parts;
As shown in figure 3, the measuring part in the present embodiment includes generating the measuring section 1 of consistent deformation with elastomer 4 and setting In on measuring section 1 sensing element 2, the measuring section 1 includes the first measuring section 11 and the second measuring section 12, perpendicular to elasticity On the section of body Impact direction, the sectional area of first measuring section 11 is less than the sectional area of second measuring section 12.
By the way that measuring section is set as including the first measuring section and the second measuring section, and perpendicular to elastomer Impact direction Section on, the sectional area of the first measuring section is less than the sectional area of the second measuring section, and when elastomer deforms upon, first measures The strain of section and the second measuring section is different, and the big strain sensitivity of sectional area is poor, and the small strain sensitivity of sectional area is good; The big rigidity of another aspect sectional area and ultimate strength are big, and the small rigidity of sectional area and ultimate strength are small, when sensing element is arranged When on the measuring section of different cross-sectional, you can realization is adjusted measurement sensitivity or range, is conducive in measuring part The scope of application.
It should be noted that for the measuring part that both ends are fixedly mounted, according to the strain calculation formula of measuring section:Wherein N is axial force, and E is elasticity modulus, and A is each measuring section perpendicular to elastomer Corresponding sectional area on Impact direction, since both ends installation axial force N sizes are the same, material elastic modulus E is the same, and is pacifying The total deformation filled in section is the same, but on the measuring section of different cross-sectional, the ratio for deforming distribution is different, so sectional area Size decides the strain of each measuring section, thus adjusts the size of each measuring section sectional area, can adjust the sensitive of sensor Degree or measuring range.The program has abandoned the sensitivity for changing sensor by adjusting sensing element and its packaging technology in the past Or the way of measuring range, and the program is implemented simply, implementation cost is low.
In the present embodiment, there are one the first measuring sections 11 on the measuring section 1, and the first measuring section 11 is located at two second Between measuring section 12, the sensing element 2 is located on the first measuring section 11.By the way that one first measurement is arranged on measuring section Section, and the first measuring section is located between two the second measuring sections, since the sectional area of the first measuring section is less than the second measuring section Sectional area, the i.e. measuring section are in the structure of big at both ends and small in middle, when measuring section both ends are fixed, since sensing element is arranged in the On one measuring section, thus measurement sensitivity can be promoted, simultaneously because structural symmetry so that sensor manufactures and installation side Just, the first measuring section stress and deformation is more uniform, improves measurement accuracy.
In the present embodiment, first measuring section and/or the second measuring section are rod-like structure.When the first measuring section and/or When second measuring section uses rod-like structure, cross sectional shape rule, and the stress distribution on section is uniform, while can bear larger Limit stress.
In the present embodiment, first measuring section and/or the second measuring section may be platy structure.Using platy structure When, cross sectional shape rule, and the stress distribution on section is uniform, while by reducing plate thickness size, reducing measuring section and bullet Property body connection after occupied space, and facilitate manufacture.
In the present embodiment, the fixed part for fixing its position is additionally provided on the measuring section, convenient for by the measuring section with Elastomer is attached fixation.
In the present embodiment, the fixed part is set to the end positions of measuring section, is convenient for the manufacture and installation of the measuring section.
In the present embodiment, the fixed part is the mounting hole 3 set on measuring section both ends.
In the present embodiment, the sensing element is pasted on measuring section outer surface, facilitates the arrangement of sensing element.
In the present embodiment, the sensing element can also be embedded in inside measuring section, can be formed to sensing element preferably Protection.
In the present embodiment, the sensing element is resistance strain gage or fiber grating.
Embodiment 2
The present embodiment provides a kind of highly sensitive dynamometry ring sensors;
As shown in Figure 1-Figure 3, the highly sensitive dynamometry ring sensor in the present embodiment, including elastomer 4, the elastomer 4 are equipped with multiple measuring parts, and the measuring part includes generating the measuring section 1 of consistent deformation with elastomer 4 and being set to measure Sensing element 2 in section 1;The measuring section 1 includes the first measuring section 11 and the second measuring section 12, perpendicular to elastomer stress On the section in direction, the sectional area of first measuring section 11 is less than the sectional area of second measuring section 12;The sensitive member Part 2 is located on the first measuring section 11.
By the way that multiple measuring parts are arranged on the elastomer of dynamometry ring sensor, which includes and bullet the present invention Property body generates the measuring section of consistent deformation and the sensing element on measuring section;And by the way that measuring section is set as including first Measuring section and the second measuring section, and on the section of elastomer Impact direction, the sectional area of the first measuring section are less than the The sectional area of two measuring sections, when elastomer deforms upon, the strain of the first measuring section and the second measuring section is different, is cut The big strain sensitivity of area is poor, and the small strain sensitivity of sectional area is good;When sensing element is arranged on the first measuring section, then Expand the strain sensitivity of sensor, and the sensibility of temperature is just the same, does not change, thus sensor measurement essence can be improved Degree.
It should be noted that for the measuring part that both ends are fixedly mounted, according to the strain calculation formula of measuring section:Wherein N is axial force, and E is elasticity modulus, and A is each measuring section perpendicular to elastomer Corresponding sectional area on Impact direction, since both ends installation axial force N sizes are the same, material elastic modulus E is the same, and is pacifying The total deformation filled in section is the same, but on the measuring section of different cross-sectional, the ratio for deforming distribution is different, so sectional area Size decides the strain of each measuring section, thus adjusts the size of each measuring section sectional area, can adjust the sensitive of sensor Degree or measuring range.The program has abandoned the sensitivity for changing sensor by adjusting sensing element and its packaging technology in the past Or the way of measuring range, and the program is implemented simply, implementation cost is low.
It should be noted that the 4 cylindrical structure of elastomer in the present embodiment, is axially arranged with centre bore along elastomer 41, it is circumferentially with annular groove 42 in elastomer outer wall, measuring part is arranged in the annular groove.In addition, on the sensor also Equipped with the signal wire being connected with the sensing element in measuring part, the signal wire is not shown in figures.
In the present embodiment, there are one the first measuring sections 11 on the measuring section 1, and the first measuring section 11 is located at two second Between measuring section 12.By the way that first measuring section is arranged on measuring section, and the first measuring section is located at two the second measuring sections Between, since the sectional area of the first measuring section is less than the sectional area of the second measuring section, i.e., the measuring section is in big at both ends and small in middle Structure, when measuring section both ends are fixed, since sensing element is arranged on the first measuring section, you can to promote measurement sensitivity, Simultaneously because structural symmetry so that sensor manufacture and it is easy for installation, the first measuring section stress and deformation is more uniform, improve survey Measure accuracy.
In the present embodiment, first measuring section and/or the second measuring section are rod-like structure.When the first measuring section and/or When second measuring section uses rod-like structure, cross sectional shape rule, and the stress distribution on section is uniform, while can bear larger Limit stress.
In the present embodiment, first measuring section and/or the second measuring section are platy structure.When using platy structure, cut Face regular shape, and the stress distribution on section is uniform, while by reducing plate thickness size, reducing measuring section and connecting with elastomer Rear occupied space is connect, and facilitates manufacture.
In the present embodiment, the fixed part for fixing its position is additionally provided on the measuring section, convenient for by the measuring section with Elastomer is attached fixation.
In the present embodiment, the fixed part is set to the end positions of measuring section, is convenient for the manufacture and installation of the measuring section.
In the present embodiment, the fixed part is the mounting hole 3 set on measuring section both ends.By the mounting hole at measuring section both ends with Elastomer is bolted, or measuring section both ends and elastomer are welded and also may be used.
In the present embodiment, the sensing element is pasted on measuring section outer surface, facilitates the arrangement of sensing element.
In the present embodiment, the sensing element is embedded in inside measuring section, and preferable protection can be formed to sensing element.
In the present embodiment, the sensing element is resistance strain gage.
In the present embodiment, the sensing element is fiber grating.
In the present embodiment, all measuring parts are distributed in around elastomer, can carry out Multipoint Uniform survey to elastomer Amount, to improve the accuracy measured.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all originals in the present invention All any modification, equivalent and improvement made by within reason etc., should all be included in the protection scope of the present invention.

Claims (12)

1. a kind of high sensitivity dynamometry ring sensor, including elastomer, the elastomer are equipped with multiple measuring parts, feature It is, the measuring part includes generating the measuring section of consistent deformation and the sensing element on measuring section with elastomer;Institute It includes the first measuring section and the second measuring section to state measuring section, and on the section of elastomer Impact direction, described first surveys The sectional area for measuring section is less than the sectional area of second measuring section;The sensing element is located on the first measuring section.
2. high sensitivity dynamometry ring sensor according to claim 1, which is characterized in that there are one the on the measuring section One measuring section, and the first measuring section is located between two the second measuring sections.
3. high sensitivity dynamometry ring sensor according to claim 1 or 2, which is characterized in that first measuring section and/ Or second measuring section be rod-like structure.
4. high sensitivity dynamometry ring sensor according to claim 1 or 2, which is characterized in that first measuring section and/ Or second measuring section be platy structure.
5. high sensitivity dynamometry ring sensor according to claim 1, which is characterized in that be additionally provided with use on the measuring section In the fixed part for fixing its position.
6. high sensitivity dynamometry ring sensor according to claim 5, which is characterized in that the fixed part is set to measuring section End positions.
7. high sensitivity dynamometry ring sensor according to claim 6, which is characterized in that the fixed part is set on measurement The mounting hole at section both ends.
8. high sensitivity dynamometry ring sensor according to claim 1, which is characterized in that the sensing element is pasted on survey Measure section outer surface.
9. high sensitivity dynamometry ring sensor according to claim 1, which is characterized in that the sensing element is embedded in survey Measure intersegmental part.
10. high sensitivity dynamometry ring sensor according to claim 1, which is characterized in that the sensing element is resistance Foil gauge.
11. high sensitivity dynamometry ring sensor according to claim 1, which is characterized in that the sensing element is optical fiber Grating.
12. high sensitivity dynamometry ring sensor according to claim 1, which is characterized in that all measuring parts are uniformly distributed Around elastomer.
CN201810579270.0A 2018-06-07 2018-06-07 A kind of high sensitivity dynamometry ring sensor Pending CN108627289A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810579270.0A CN108627289A (en) 2018-06-07 2018-06-07 A kind of high sensitivity dynamometry ring sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810579270.0A CN108627289A (en) 2018-06-07 2018-06-07 A kind of high sensitivity dynamometry ring sensor

Publications (1)

Publication Number Publication Date
CN108627289A true CN108627289A (en) 2018-10-09

Family

ID=63691038

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810579270.0A Pending CN108627289A (en) 2018-06-07 2018-06-07 A kind of high sensitivity dynamometry ring sensor

Country Status (1)

Country Link
CN (1) CN108627289A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210181043A1 (en) * 2018-12-13 2021-06-17 Halliburton Energy Services, Inc. Strain magnification
CN113701941A (en) * 2021-07-26 2021-11-26 中国船舶重工集团公司第七0三研究所 Force measuring ring protective layer curing and pressurizing device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB962082A (en) * 1962-03-20 1964-06-24 Schenck Gmbh Carl Force-measuring member
CN1632488A (en) * 2004-12-31 2005-06-29 武汉理工大学 Anchor cable stress sensor for optical fiber grating dynamometer
RU163305U1 (en) * 2015-03-18 2016-07-10 Общество с ограниченной ответственностью "Инновационное предприятие "НЦВО-ФОТОНИКА" (ООО ИП "НЦВО-Фотоника") FIBER OPTICAL DEFORMATION SENSOR (LONGITUDINAL TENSION / COMPRESSION)
CN106639158A (en) * 2016-11-16 2017-05-10 广西大学 Integrated intelligent anchorage device and manufacturing method thereof
CN207351600U (en) * 2017-06-22 2018-05-11 广西大学 A kind of tensioning force measuring system for prestress wire
CN208206356U (en) * 2018-06-07 2018-12-07 广西大学 A kind of high sensitivity dynamometry ring sensor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB962082A (en) * 1962-03-20 1964-06-24 Schenck Gmbh Carl Force-measuring member
CN1632488A (en) * 2004-12-31 2005-06-29 武汉理工大学 Anchor cable stress sensor for optical fiber grating dynamometer
RU163305U1 (en) * 2015-03-18 2016-07-10 Общество с ограниченной ответственностью "Инновационное предприятие "НЦВО-ФОТОНИКА" (ООО ИП "НЦВО-Фотоника") FIBER OPTICAL DEFORMATION SENSOR (LONGITUDINAL TENSION / COMPRESSION)
CN106639158A (en) * 2016-11-16 2017-05-10 广西大学 Integrated intelligent anchorage device and manufacturing method thereof
CN207351600U (en) * 2017-06-22 2018-05-11 广西大学 A kind of tensioning force measuring system for prestress wire
CN208206356U (en) * 2018-06-07 2018-12-07 广西大学 A kind of high sensitivity dynamometry ring sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210181043A1 (en) * 2018-12-13 2021-06-17 Halliburton Energy Services, Inc. Strain magnification
US11761749B2 (en) * 2018-12-13 2023-09-19 Halliburton Energy Services, Inc. Strain magnification
CN113701941A (en) * 2021-07-26 2021-11-26 中国船舶重工集团公司第七0三研究所 Force measuring ring protective layer curing and pressurizing device
CN113701941B (en) * 2021-07-26 2023-05-12 中国船舶重工集团公司第七0三研究所 Force-measuring environment-friendly sheath curing and pressurizing device

Similar Documents

Publication Publication Date Title
CN208206356U (en) A kind of high sensitivity dynamometry ring sensor
CN108007619B (en) A method of anchor pole lateral force is measured using fiber grating
CN103791850B (en) The self-compensating fiber Bragg grating strain sensor of integrated temperature and the method being used for monitoring Cable power thereof
CA2839212C (en) Fiber optic cable with increased directional sensitivity
CN110082023B (en) Cable force real-time monitoring device and monitoring method
CN108444622A (en) A kind of intelligent prestress anchor slab and prestressed monitoring method
CN108627289A (en) A kind of high sensitivity dynamometry ring sensor
US20130054156A1 (en) Strain measuring and monitoring device
CN103017950A (en) High-sensitivity fiber bragg grating earth pressure gauge
CN107130651B (en) The detection device and its detection method of anchor pole internal force exterior measuring
CN103485811A (en) Detection method for axial force and bending moment of anchor rod and detecting anchor rod
CN104807536A (en) Fiber Bragg grating two-dimensional vibration sensor with temperature compensation
EP3314202B1 (en) Method for measuring the displacement profile of buildings and sensor therefor
KR102323526B1 (en) Prestressing force monitoring system of prestressins strand using smart anchoring plate based on distributed optical fiber sensor, and method for the same
CN108613764A (en) A kind of primary structure member and the strain transducer with the primary structure member
CN204902780U (en) Optic fibre bragg grating array strain sensor of high sensitivity high resolution high accuracy
CN203069150U (en) Novel fiber bragg grating strain meter
CN106767357A (en) Wall body structure deformation measuring device
CN208420234U (en) A kind of intelligent prestress anchor slab
CN108627290A (en) A method of improving bridge strain monitoring sensitivity
CN207472463U (en) A kind of link sensor of pole structure
CN105157591A (en) High-sensitivity high-resolution high-precision fiber Bragg grating array strain sensor
Schilder et al. Structure-integrated fibre-optic strain wave sensor for pile testing and monitoring of reinforced concrete piles
CN212340518U (en) Three-axis force value detection sensor
CN104790994B (en) Rockbolt stress state rapid evaluation device and application process thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination