CN108627289A - A kind of high sensitivity dynamometry ring sensor - Google Patents
A kind of high sensitivity dynamometry ring sensor Download PDFInfo
- 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
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- elastomer
- sensing element
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- 230000035945 sensitivity Effects 0.000 title claims abstract description 40
- 229920001971 elastomer Polymers 0.000 claims abstract description 52
- 239000000806 elastomer Substances 0.000 claims abstract description 52
- 238000005259 measurement Methods 0.000 claims description 16
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 7
- 239000011888 foil Substances 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000000835 fiber Substances 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012536 packaging technology Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring 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
- G01L1/22—Measuring 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring 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
- G01L1/242—Measuring 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
- G01L1/246—Measuring 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
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.
Priority Applications (1)
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CN201810579270.0A CN108627289A (en) | 2018-06-07 | 2018-06-07 | A kind of high sensitivity dynamometry ring sensor |
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CN201810579270.0A CN108627289A (en) | 2018-06-07 | 2018-06-07 | A kind of high sensitivity dynamometry ring sensor |
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ID=63691038
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CN201810579270.0A Pending CN108627289A (en) | 2018-06-07 | 2018-06-07 | A kind of high sensitivity dynamometry ring sensor |
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Cited By (2)
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 |
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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 |
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2018
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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 |
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Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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