CN206724913U - A kind of small-sized strain gauge of type vibration wire - Google Patents
A kind of small-sized strain gauge of type vibration wire Download PDFInfo
- Publication number
- CN206724913U CN206724913U CN201720532442.XU CN201720532442U CN206724913U CN 206724913 U CN206724913 U CN 206724913U CN 201720532442 U CN201720532442 U CN 201720532442U CN 206724913 U CN206724913 U CN 206724913U
- Authority
- CN
- China
- Prior art keywords
- end block
- magnet
- strain gauge
- outer barrel
- coil
- 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.)
- Active
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
It the utility model is related to a kind of small-sized strain gauge of type vibration wire, including string wire, first end block, second end block, coil, first magnet, second magnet and protection outer barrel, string wire, coil, first magnet and the second magnet are arranged in protection outer barrel, first end block and the second end block are separately positioned on inside the both ends of protection outer barrel, one end of first end block and string wire connects, second end block connects the other end of string wire, coil is arranged on the outside of string wire, coil, first magnet and the second magnet provide signal excitation and signal output for strain gauge, protect outer barrel and string wire, first end block, second end block, coil, first magnet and the second magnet form integral structure.The small-sized strain gauge of string formula is designed using centralized configuration, and compact is particularly suitable for the deformation monitoring used in the application of limited space, is had the advantages that measurement accuracy is high, service life is long, environmental suitability is strong, is adapted to widely used in engineering.
Description
Technical field
It the utility model is related to ground and engineering structure safety monitoring technology field, particularly a kind of small-sized strain of type vibration wire
Meter.
Background technology
Vibrating string extensometer be it is a kind of with vibrating wire principle come the strain gauge that measures, its biggest advantage is that structure is simple
Single, reliable operation, output signal is the frequency signal of standard, very convenient computer disposal.Traditional vibrating string extensometer knot
Structure is that string wire is set in an outer barrel, and string wire both ends are fixed in two end seats, and two end seats are arranged at the both ends of outer barrel, line
The outside middle and coil that circle is arranged on outer barrel is provided at both ends with magnet.The shortcomings that traditional vibrating string extensometer is it for separation
Formula structure and overall volume is bigger, need first to assemble all parts when measuring, tedious process, and take empty
Between it is big, can not be used in the application of limited space, be not suitable for small structure measurement, and coil and magnet are because be arranged on outside outer barrel
Portion is influenceed substantially by external environment, brings very big inconvenience to measurement, particularly can substantially reduce survey at that time must not assemble
The precision of amount, while during assembly and disassembly, different degrees of damage can be caused to strain gauge, reduce service life.
Utility model content
Overall volume is big and measurement accuracy is low etc. be present for traditional vibrating string extensometer in the utility model, there is provided
A kind of small-sized strain gauge of type vibration wire, is designed using centralized configuration, and compact is particularly suitable for making in the application of limited space
Deformation monitoring, have the advantages that measurement accuracy is high, service life is long, environmental suitability is strong, be adapted to adopting extensively in engineering
With.
The technical solution of the utility model is as follows：
A kind of small-sized strain gauge of type vibration wire, it is characterised in that including string wire, the first end block, the second end block, coil, first
Magnet, the second magnet and protection outer barrel, the string wire, coil, the first magnet and the second magnet are arranged in protection outer barrel, institute
State the first end block and the second end block is separately positioned on inside the both ends of protection outer barrel, one end of first end block and string wire connects
Connect, the other end of the second end block connection string wire, the coil is arranged on the outside of string wire, first magnet and the second magnet
Coil is arranged at close to one end of the first end block using magnetic material and the first magnet, the second magnet is arranged at coil away from the
One end of one end block, the coil, the first magnet and the second magnet provide signal excitation and signal output for strain gauge, described anti-
Protect outer barrel and form integral structure with string wire, the first end block, the second end block, coil, the first magnet and the second magnet.
Also including being used to protect string wire and position the string wire protection pipe of string wire length, the string wire passes through string wire protection pipe,
Wound around coil outside the string wire protection pipe, the string wire protection pipe are slided between the first end block and the second end block.
Also include the first fixed block, connector and adjusting means, first fixed block is welded in the first end block side wall
And be connected by the first guide rail structure with protection outer barrel, the adjusting means is arranged on the close first end block outer end of protection outer barrel
Termination and the adjusting means the first termination is connected to adjust string wire Tensity size by connector.
Also include the first sealing ring and the second sealing ring, first sealing ring and the second sealing ring are respectively arranged at first
The both ends of end block and protection outer barrel contact site.
Also include the second fixed block, shielded cable and thermistor, second fixed block is welded on the second end block side wall
Upper and be connected by the second guide rail structure with protection outer barrel, one end of the shielded cable is fixed on close the by epoxy resin
The inside of the protection outer barrel of two end block outer ends and the other end extraction protection outer barrel of shielded cable, signal output is provided for strain gauge
And input, the thermistor are fixed on protection outer barrel by epoxy resin and are arranged on shielded cable close to the second end block
One end.
Also include the 3rd sealing ring, the 4th sealing ring and the 5th sealing ring, the 3rd sealing ring and the 4th sealing ring point
The second end block is not arranged at protecting the both ends of outer barrel contact site, and it is outer with protection that the 5th sealing ring is arranged at shielded cable
The contact site of cylinder.
Also include the first voussoir and the second voussoir, the string wire is close to one end of the first end block by the first voussoir using pressure
The mode of power machine is fixed on the first end block, and the string wire is close to one end of the second end block by the second voussoir using forcing press
Mode is fixed on the second end block.
The coil is fixed on the centre outside string wire protection pipe, first magnet and second using sticking colloid
Magnet can be fixed on the both ends of coil using sticking colloid.
Protection outer barrel, the first fixed block, the second fixed block and the adjusting means are manufactured using stainless steel material.
The adjusting means is set screw.
Technique effect of the present utility model is as follows：
The small-sized strain gauge of a kind of type vibration wire that the utility model is related to, including string wire, the first end block, the second end block, coil,
First magnet, the second magnet and protection outer barrel, coil, the first magnet and the second magnet provide signal excitation and signal for strain gauge
Output, protection outer barrel are used for protecting string wire, the first end block, the second end block, coil, the first magnet and the second magnet and and steel
String, the first end block, the second end block, coil, the first magnet and the second magnet form integral structure, by string wire, coil, the first magnetic
Body and the second magnet etc. are arranged in protection outer barrel, avoid string wire, the first end block, the second end block, coil, the first magnet and the
Two magnets directly contact with measurement object, reduce the abrasion of strain gauge, extend the service life of strain gauge, meanwhile, surveyed
Strain gauge can be used directly during amount, and the friction between part caused by avoiding this link of assembly and disassembly causes strain gauge
Damage, further extend the service life of strain gauge.The utility model proposes a kind of small-sized strain gauge of type vibration wire using collection
Structure of Chinese style designs, and design volume is very small, forms integrated small strain gauge, and compact is particularly suitable in limited space
The deformation monitoring used in, cost is cheap, and strain gauge is integrally manufactured using stainless steel material, corrosion resistance and good, adapts to
The use of adverse circumstances, environmental suitability is strong, have reliably and with long-term the advantages of, strain gauge can reach resolution ratio 0.025F.S%,
Precision ± 0.5F.S%, repeatability≤0.3F.S%, stable performance, measurement accuracy is high, simultaneously because vibrating string extensometer is in itself
Characteristic, frequency signal is stable, and small-sized strain gauge of the present utility model is suitable to long distance signal transmission.
Preferably, strain gauge also includes string wire protection pipe, and string wire protection pipe outside wound around coil, coil can be viscous using having
Property colloid such as 502 be fixed on the centre outside string wire or outside string wire protection pipe, prevent coil movement from causing the inaccurate of measurement
True property, string wire pass through string wire protection pipe, and string wire protection pipe is used for protecting string wire and positioning string wire length, and can be in first end
Arbitrarily slided between block and the second end block, improve strain gauge measurement accuracy and system it is firm fixed.
Preferably, strain gauge also includes the first fixed block, connector, adjusting means, the first sealing ring and the second sealing ring,
First fixed block can be welded in the first end block side wall by laser-beam welding machine and by the first guide rail structure and protection outer barrel
Connection, avoids strain gauge from rotating, and further improves overall security and stability, and adjusting means connects first by connector
Termination, specifically, connector can be fixed on the one end of the first end block away from the first magnet by the way of laser welding, regulation
Device uses with connector and is threadedly coupled to adjust string wire Tensity size, further increases the accuracy of measurement.More enter one
Step ground, can be set the first voussoir, and string wire is fixed on close to one end of the first end block by way of the first voussoir uses forcing press
On first end block, string wire movement is avoided to cause non-essential measurement error；The both ends of first end block and protection outer barrel contact site
The first sealing ring and the second sealing ring are preferably provided with, the effect for setting above-mentioned sealing ring is to make strain gauge integral sealing moistureproof, anti-
Water is pressure-resistant.
Preferably, the small-sized strain gauge of a kind of type vibration wire that the utility model is related to also include the second fixed block, shielded cable,
Thermistor, the 3rd sealing ring, the 4th sealing ring and the 5th sealing ring, the second fixed block can be welded on by laser-beam welding machine
It is connected in second end block side wall and by the second guide rail structure with protection outer barrel, avoids strain gauge from rotating, further improve
Overall security and stability, one end of shielded cable are fixed on the protection outer barrel close to the second end block outer end by epoxy resin
Inside, signal output and input are provided for strain gauge, thermistor is fixed on the shielding of protection outer barrel by epoxy resin
Cable strengthens integral firmness, thermistor can be carried out with measuring environment temperature value to strain gauge close to one end of the second end block
Temperature adjustmemt, improve the measuring accuracy of strain gauge.Further, the second voussoir can be set, string wire is close to the second end block
One end is fixed on the second end block by way of the second voussoir uses forcing press, prevents string wire from moving, and further enhancing should
Become the security reliability of meter, improve the measurement accuracy of system；The both ends of second end block and protection outer barrel contact site are preferably set
The 3rd sealing ring and the 4th sealing ring are put, the 5th sealing ring is provided with shielded cable, the work of above-mentioned sealing ring is set in many places
With being to improve small-sized strain gauge overall waterproof, protection against the tide and pressure-resistant performance.
Preferably, it can use and coil is fixed on string wire outside or string wire protection pipe using sticking colloid such as 502
Among outside, prevent coil movement from causing the inaccuracy of measurement, the first magnet and the second magnet can use sticking glue
Body such as 502 is fixed on the both ends of coil, is further ensured that the steadiness of strain gauge, improves the precision of measurement.When measuring,
Strain gauge can be fixed using welding manner, and short term detection can also use fixture or be bolted to the surface of testee,
Strain gauge can be adhered to testee surface with epoxy or other high-strength adhesives.
Brief description of the drawings
Fig. 1 is the elevation cross-sectional view of the preferred structure of the small-sized strain gauge of the utility model type vibration wire.
Fig. 2 is the preferred structure top view of the small-sized strain gauge of the utility model type vibration wire.
Each label lists as follows in figure：
1- string wires；The end blocks of 2- first；The end blocks of 3- second；4- coils；The magnets of 5- first；The magnets of 6- second；7- prevents
Protect outer barrel；8- string wire protection pipes；The fixed blocks of 9- first；10- connectors；11- set screws；The sealing rings of 12- first；
The sealing rings of 13- second；The guide rail structures of 14- first；The fixed blocks of 15- second；16- shielded cables；17- thermistors；18-
3rd sealing ring；The sealing rings of 19- the 4th；The sealing rings of 20- the 5th；The guide rail structures of 21- second；The voussoirs of 22- second.
Embodiment
The utility model is illustrated below in conjunction with the accompanying drawings.
A kind of small-sized strain gauge of type vibration wire is the utility model is related to, is designed using centralized configuration, for measuring steel construction
With the strain in spacing smaller structure, its preferred structure is as shown in figure 1, including string wire 1, the first end block 2, the second end block 3, coil
4th, the first magnet 5, the second magnet 6 and protection outer barrel 7, string wire 1, coil 4, the first magnet 5 and the second magnet 6 are arranged at protection
In outer barrel 7,3 pieces of the first end block 2 and the second end are separately positioned on inside the both ends of protection outer barrel 7, and said structure sets and can kept away
Exempt from string wire 1, the first end block 2, the second end block 3, coil 4, the first magnet 5 and the second magnet 6 directly to contact with measurement object, reduce
The abrasion of strain gauge, extend the service life of strain gauge.First end block 2 is connected with one end of string wire 1, the second end block 3 connection steel
The other end of string 1, it is preferably inductance coil that coil 4, which is arranged on the outside of string wire 1 and coil 4, and the first magnet 5 and the second magnet 6 are equal
Using magnetic material and sticking colloid such as 502 can be used to be fixed on the left and right ends of coil 4, ensure the firm of strain gauge
Property, improves the precision of measurement, and the first magnet 5 is arranged at coil 4 and is arranged at coil close to one end of the first end block 2, the second magnet 6
4 one end away from the first end block 2, the first magnet 5 and the second magnet 6 preferably magnet, coil 4, the first magnet 5 and the second magnet
6 provide signal excitation and signal output for strain gauge, and protection outer barrel 7 is used for protecting mounted string wire 1, the first end block 2, second
End block 3, coil 4, the first magnet 5 and the second magnet 6, and protect outer barrel 7 and string wire 1, the first end block 2, the second end block 3, coil
4th, the first magnet 5 and the second magnet 6 form integral structure.
Fig. 1 is the preferred structure elevation cross-sectional view of the small-sized strain gauge of the utility model type vibration wire, and Fig. 2 is its top view, should
The small-sized strain gauge of type vibration wire removes and is provided with string wire 1, the first end block 2, the second end block 3, coil 4, the first magnet 5, the and of the second magnet 6
Protect outside outer barrel 7, it is preferable that as shown in figure 1, the small-sized strain gauge of type vibration wire also includes being used to protect string wire 1 and positioning string wire 1 to grow
The string wire protection pipe 8 of degree, string wire 1 pass through string wire protection pipe 8, and the outside wound around coil 4 of string wire protection pipe 8, coil 4, which can use, to be had
The colloid such as 502 of viscosity is fixed on the centre outside string wire protection pipe 8, prevents coil 4 from moving the inaccuracy for causing measurement, can
The string wire protection pipe 8 of a piece slip of edge among the first end block 2 and the second end block 3 is not understood as, string wire protection pipe 8 is in first end
Slided between the end block 3 of block 2 and second, for position the length of string wire 1 and protection string wire 1, improve strain gauge measurement accuracy and
System it is firm fixed；Preferably, as depicted in figs. 1 and 2, the small-sized strain gauge of type vibration wire also includes the first fixed block 9, connector
10th, adjusting means, the first sealing ring 12 and the second sealing ring 13, adjusting means can use set screw 11 or other regulation knots
Structure, the first fixed block 9 can be welded in the side wall of the first end block 2 by laser-beam welding machine and by the first guide rail structure 14 with preventing
Shield outer barrel 7 connects, i.e. the first fixed block 9 and protection outer barrel 7 junction are the first guide rail structure 14, and the structure can prevent strain gauge
Rotate, improve overall security and stability, while the first fixed block 9 also provides installation connection, connector 10 for strain gauge
The one end of the first end block 2 away from the first magnet 5 can be fixed on by way of laser-beam welding machine uses laser welding, adjust spiral shell
Silk 11 is arranged on the termination of the close outer end of first end block 2 of protection outer barrel 7 and set screw 11 and connector 10 are by using spiral shell
The mode of line connection is connected on the first termination 2 to adjust the Tensity size of string wire 1, further increases the accuracy of measurement,
Set screw 11 coordinates adjustable tension size to be adjusted so as to change strain gauge mounting means using compression strain with protection outer barrel 7
Tension force or reading are turned in hightension or reading, opposite elongation strain down, it is not known that metering system is then adjusted in centre position.Further
Ground, the first voussoir can be set, it should be noted that the first voussoir is arranged on the inside of the first end block 2, does not mark in Fig. 1, its
Position is corresponding in the position at place with the second voussoir 22, and string wire 1 is adopted close to one end of the first end block 2 by the first voussoir
Be fixed on the mode of forcing press on the first end block 2, avoid string wire movement from causing non-essential measurement error, the first end block 2 with
Protect the both ends of the contact site of outer barrel 7 that first sealing ring 12 and the second sealing ring 13 are set, setting the effect of above-mentioned sealing ring is
Make the protection against the tide of strain gauge integral sealing, waterproof pressure.Preferably, the small-sized strain gauge of type vibration wire also includes the second fixed block 15, shielding
Cable 16, thermistor 17, the 3rd sealing ring 18, the 4th sealing ring 19 and the 5th sealing ring 20, the second fixed block 15 can lead to
Cross laser-beam welding machine to be welded in the side wall of the second end block 3 and be connected with protection outer barrel 7 by the second guide rail structure 21, i.e., second is solid
It is the second guide rail structure 21 to determine block 15 with protection outer barrel 7 junction, and the structure is rotated prevented also from strain gauge, further carried
High overall security and stability, while the second fixed block 15 also provides installation connection for strain gauge, one end of shielded cable 16 leads to
Cross epoxy resin be fixed on drawn close to the inside of protection outer barrel 7 of the outer end of the second end block 3 and the other end of shielded cable 16 it is anti-
Outer barrel 7 is protected, shielded cable 16 provides signal output and input for strain gauge, and thermistor 17 is fixed on protection by epoxy resin
Shielded cable 16 inside outer barrel 7 strengthens integral firmness, thermistor 17 can measure ring close to one end of the second end block 3
Border temperature value, temperature adjustmemt is carried out to strain gauge, improves the measuring accuracy of strain gauge；Further, the second wedge can be set
Block 22, string wire 1 are fixed on the second end block 3 close to one end of the second end block 3 by way of the second voussoir 22 uses forcing press,
I.e. for string wire 1 as strain gauge measurement main element, it is separately fixed at the first end block 2 and second with two voussoirs by forcing press
The both ends of end block 3, prevent string wire 1 from moving, and further enhancing the security reliability of strain gauge, improve the measurement accuracy of system；
3rd sealing ring 18 and the 4th sealing ring 19 are respectively arranged at the both ends of the second end block 3 and protection outer barrel 7 contact site, and the 5th is close
Seal 20 is arranged at shielded cable 16 with protecting the contact site of outer barrel 7, and it is to improve that the effect of above-mentioned sealing ring is set in many places
Small-sized strain gauge overall waterproof, protection against the tide and pressure-resistant performance.That is, the protection end block 2 of outer barrel 7 and first and the second end
The junction of block 3 is provided with corresponding sealing ring, and each sealing ring and protection outer barrel 7 make the small-sized strain of the utility model type vibration wire
Count integral sealing protection against the tide, waterproof pressure.
Fig. 2 is the preferred structure top view of the small-sized strain gauge of the utility model type vibration wire, and the small-sized strain gauge of the type vibration wire is whole
Body manufactures for stainless steel material, or perhaps it protects outer barrel 7, the first fixed block 9, the second fixed block 15 and set screw 11 equal
Manufactured using stainless steel material, corrosion resistance and good, applicable adverse circumstances are applicable, and can be long-term use of, are had reliably and with long-term
Property.When measuring, strain gauge can be fixed using welding manner, short term detection can also use fixture or be bolted to by
Survey the surface (such as steel or concrete surface) of object, can also with epoxy or other high-strength adhesives strain gauge be adhered to by
Survey body surface (such as steel or concrete surface).
The operation principle (using vibrating wire principle) of the small-sized strain gauge of the utility model type vibration wire is as follows：The tensioning of string wire 1 is existed
Between first end block 2 and the second end block 3, the first end block 2 and the first end block 3 can use bonding machine, epoxy or other high intensity
Testee (steel part to be measured in other words) surface is welded or be bonded in the mode of binding agent, when testee structure strains
When, the deformation on testee surface can cause the relative motion of the first end block 2 and the first end block 3 so as to cause the tension force of string wire 1 to change
Become, and then the intrinsic frequency of string wire 1 is changed, measuring instrumentss output pulse signal passes through coil 4, the first magnet 5 and the
The exciting string wire 1 of two magnet 6 simultaneously detects the frequency of 4 induced signals of coil, is obtained by conversion by the dependent variable of geodesic structure.Steel
The eigentone F and pulling force T of string 1 relation is：F=(1/2L) * (T/M) * 1/2
In above formula：The natural frequency of vibration of F-string wire, the length of L-string wire, M-the quality of unit length string wire, T-string wire
Tension force.
The utility model proposes a kind of small-sized strain gauge of type vibration wire using centralized configuration design, design volume is very
It is small, integrated small strain gauge is formed, is mainly used in measuring the strain on steel structure member, such as：Bridge, stake, tunnel-liner,
Pipe-line system, building, dam, nuclear power station etc., compact are particularly suitable for the deformation prison used in the application of limited space
Survey, meanwhile, when measuring, strain gauge can be used directly, between part caused by avoiding this link of assembly and disassembly
Friction makes strain gauge cause to damage, and further extends the service life of strain gauge, and cost is cheap, and the strain gauge is not integrally using
The Steel material that becomes rusty manufactures, and corrosion resistance and good, adapts to the use of adverse circumstances, and environmental suitability is strong, the advantages of having reliably and with long-term,
Strain gauge can reach resolution ratio 0.025F.S%, precision ± 0.5F.S%, repeatability≤0.3F.S%, stable performance, measurement essence
Degree is high, simultaneously because vibrating string extensometer self character, frequency signal is stable, small-sized strain gauge of the present utility model be suitable to it is long away from
Transmitted from signal.
It should be pointed out that embodiment described above can make those skilled in the art that the present invention be more fully understood
Create, but do not limit the invention in any way is created.Therefore, although this specification is created with embodiment to the present invention referring to the drawings
Make and have been carried out being described in detail, it will be understood by those skilled in the art, however, that still can be modified to the invention
Or equivalent substitution, in a word, all do not depart from the technical scheme of the spirit and scope of the invention and its improvement, and it all should contain
Cover among the protection domain of the invention patent.
Claims (10)
1. a kind of small-sized strain gauge of type vibration wire, it is characterised in that including string wire, the first end block, the second end block, coil, the first magnetic
Body, the second magnet and protection outer barrel, the string wire, coil, the first magnet and the second magnet are arranged in protection outer barrel, described
First end block and the second end block are separately positioned on inside the both ends of protection outer barrel, one end connection of first end block and string wire,
The other end of the second end block connection string wire, the coil are arranged on the outside of string wire, and first magnet and the second magnet are equal
Coil is arranged at using magnetic material and the first magnet and is arranged at coil away from first close to one end of the first end block, the second magnet
One end of end block, the coil, the first magnet and the second magnet provide signal excitation and signal output, the protection for strain gauge
Outer barrel forms integral structure with string wire, the first end block, the second end block, coil, the first magnet and the second magnet.
2. the small-sized strain gauge of type vibration wire according to claim 1, it is characterised in that also include being used to protect string wire and positioning
The string wire protection pipe of string wire length, the string wire pass through string wire protection pipe, string wire protection pipe outside wound around coil, the steel
String protection pipe is slided between the first end block and the second end block.
3. the small-sized strain gauge of type vibration wire according to claim 2, it is characterised in that also including the first fixed block, connector
And adjusting means, first fixed block are welded in the first end block side wall and connected by the first guide rail structure and protection outer barrel
Connect, the adjusting means is arranged on the termination of the close first end block outer end of protection outer barrel and the adjusting means passes through connector
The first termination is connected to adjust string wire Tensity size.
4. the small-sized strain gauge of type vibration wire according to claim 3, it is characterised in that also close including the first sealing ring and second
Seal, first sealing ring and the second sealing ring are respectively arranged at the first end block with protecting the both ends of outer barrel contact site.
5. the small-sized strain gauge of type vibration wire according to claim 3 or 4, it is characterised in that also including the second fixed block, shielding
Cable and thermistor, second fixed block are welded in the second end block side wall and by the second guide rail structures and protection outer barrel
Connection, one end of the shielded cable are fixed on the inside of the protection outer barrel close to the second end block outer end and screen by epoxy resin
The other end for covering cable draws protection outer barrel, provides signal output and input for strain gauge, the thermistor passes through asphalt mixtures modified by epoxy resin
Fat is fixed on protection outer barrel and is arranged on shielded cable close to one end of the second end block.
6. the small-sized strain gauge of type vibration wire according to claim 5, it is characterised in that also including the 3rd sealing ring, the 4th close
Seal and the 5th sealing ring, the 3rd sealing ring and the 4th sealing ring are respectively arranged at the second end block and protection outer barrel contact site
The both ends of position, the 5th sealing ring are arranged at shielded cable with protecting the contact site of outer barrel.
7. the small-sized strain gauge of type vibration wire according to claim 1 or 2, it is characterised in that also including the first voussoir and second
Voussoir, the string wire are fixed on the first end block close to one end of the first end block by way of the first voussoir uses forcing press,
The string wire is fixed on the second end block close to one end of the second end block by way of the second voussoir uses forcing press.
8. strain gauge according to claim 2, it is characterised in that the coil is fixed on string wire using sticking colloid
Centre outside protection pipe, first magnet and the second magnet can be fixed on the both ends of coil using sticking colloid.
9. the small-sized strain gauge of type vibration wire according to claim 5, it is characterised in that it is described protection outer barrel, the first fixed block,
Second fixed block and adjusting means are manufactured using stainless steel material.
10. the small-sized strain gauge of type vibration wire according to claim 3 or 4, it is characterised in that the adjusting means is regulation spiral shell
Silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720532442.XU CN206724913U (en) | 2017-05-15 | 2017-05-15 | A kind of small-sized strain gauge of type vibration wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720532442.XU CN206724913U (en) | 2017-05-15 | 2017-05-15 | A kind of small-sized strain gauge of type vibration wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206724913U true CN206724913U (en) | 2017-12-08 |
Family
ID=60509439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720532442.XU Active CN206724913U (en) | 2017-05-15 | 2017-05-15 | A kind of small-sized strain gauge of type vibration wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206724913U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014326A (en) * | 2017-05-15 | 2017-08-04 | 基康仪器股份有限公司 | A kind of small-sized strain gauge of type vibration wire |
| CN112945424A (en) * | 2021-01-19 | 2021-06-11 | 南京工程学院 | Vibrating wire type surface strain gauge and use method thereof |
-
2017
- 2017-05-15 CN CN201720532442.XU patent/CN206724913U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014326A (en) * | 2017-05-15 | 2017-08-04 | 基康仪器股份有限公司 | A kind of small-sized strain gauge of type vibration wire |
| CN107014326B (en) * | 2017-05-15 | 2024-04-26 | 基康仪器股份有限公司 | Vibrating wire type small strain gauge |
| CN112945424A (en) * | 2021-01-19 | 2021-06-11 | 南京工程学院 | Vibrating wire type surface strain gauge and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206724913U (en) | A kind of small-sized strain gauge of type vibration wire | |
| CN107014326A (en) | A kind of small-sized strain gauge of type vibration wire | |
| CN109579756A (en) | A kind of crack three direction displacement monitoring measuring device | |
| CN105091806B (en) | High pressure resistant vibrating string extensometer | |
| CN203097917U (en) | Force-measuring rock bolt | |
| CN109385956B (en) | Intelligent suspender or inhaul cable structure with built-in extension sensor for monitoring stress | |
| CN103512687A (en) | Optical fiber reinforcement meter | |
| CN108253923A (en) | A kind of prepackage caliberating device | |
| CN103307963A (en) | Wide-range high pressure resistant wire type strain gauge | |
| CN207649725U (en) | A kind of liquid level sensor | |
| CN106706189A (en) | Force measuring bolt | |
| CN204575041U (en) | A kind of anchor cable formula instrument of roof separation | |
| CN207878437U (en) | Multi-functional static sounding head | |
| CN207570611U (en) | Compression high-voltage electromagnetic flowmeter inside and outside a kind of immersion | |
| CN203024724U (en) | Displacement detector | |
| CN206710014U (en) | FBG pressure sensors based on all-metalization encapsulation | |
| KR100424924B1 (en) | A rod extensometer strenthened waterproof function | |
| CN104748664B (en) | A kind of Rock And Soil internal displacement system for measuring quantity | |
| CN108106527A (en) | A kind of miniature vibrating string extensometer | |
| CN110332913A (en) | A kind of type vibration wire integral type strain gauge | |
| CN215064743U (en) | Gate opening instrument for water level detection | |
| CN209278759U (en) | Sensor pre-pressing structure | |
| CN210293143U (en) | Vibrating wire type water pressure resistant strain gauge | |
| CN103630083A (en) | Strain measuring device | |
| CN205670005U (en) | A kind of cross beam type sedimentometer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |