CN109520462A - Protection method of strain gauge - Google Patents
Protection method of strain gauge Download PDFInfo
- Publication number
- CN109520462A CN109520462A CN201811331506.5A CN201811331506A CN109520462A CN 109520462 A CN109520462 A CN 109520462A CN 201811331506 A CN201811331506 A CN 201811331506A CN 109520462 A CN109520462 A CN 109520462A
- Authority
- CN
- China
- Prior art keywords
- hole
- foil gauge
- pressing plate
- mounting plate
- flange
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000003825 pressing Methods 0.000 claims description 72
- 239000011888 foil Substances 0.000 claims description 65
- 239000003292 glue Substances 0.000 claims description 24
- 239000005030 aluminium foil Substances 0.000 claims description 12
- 229920002379 silicone rubber Polymers 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 229910017435 S2 In Inorganic materials 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 8
- 239000002245 particle Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention relates to the field of engineering machinery, and discloses a method for protecting a strain gauge, wherein the strain gauge is arranged on the surface of a monitored part (50), and the method comprises the step of providing a sealing cover (10) which is used for sealing the strain gauge together with the surface of the monitored part (50). The protection method of the strain gauge can effectively prevent the collision of other objects such as broken stones and particles on the construction site, and the strain gauge can adapt to the environment of the construction site.
Description
Technical field
The present invention relates to engineering machinery fields, more particularly to a kind of means of defence of foil gauge.
Background technique
Foil gauge is the element for the strain of measurement structure part being made of sensitive grid etc., and when use pastes it securely
On the measuring point of structural member.Foil gauge is after stickup, it is necessary to carry out protection appropriate, prevent it by external environment and people
The infringement of object, common protection method and device are undesirable to the protection effect of foil gauge at present, apply in the prevalence of protective agent
Protection intensity when smearing that the unreasonable oil-stain-preventing effect for causing foil gauge of mode is poor, and being hit to foil gauge is insufficient to ask
Topic.
Summary of the invention
The purpose of the invention is to overcome the problems, such as that foil gauge protection intensity of the existing technology is insufficient, one kind is provided
The means of defence of foil gauge.
To achieve the goals above, the present invention provides a kind of means of defence of foil gauge, and the foil gauge setting is being supervised
It surveys on the surface of part, this method includes providing the seal closure that the foil gauge is closed together with the surface of the monitored part.
Preferably, the seal closure includes main body and the flange positioned at the bottom of the main body, is provided in the main body
The middle part of electrical connector through-hole, the flange has central through hole, and the bottom surface of the flange is provided with sealing ring flexible, described
Sealing ring is around the central through hole, this method comprises: S1: the seal closure is placed on the surface of the monitored part,
So that the foil gauge is located at the foil gauge and is located in the region of the central through hole；S2: on the surface of the monitored part
Mounting plate is set so that the flange is located between two mounting plates, pressing plate is mounted on two mounting plates, with
Make the flange be compressed in part and the monitored part of the pressing plate between two mounting plates surface it
Between in the gap that is formed so that the sealing ring is compressed between the flange and the surface of the monitored part；S3:
Electrical waterproof connector is set on the electrical connector through-hole, and by the electrical waterproof connector by the connection of the foil gauge
Line is drawn.
Preferably, the first pressing plate through-hole is provided on the pressing plate, the first pressing plate through-hole is threaded hole, the flange
On be provided with blind hole, when the pressing plate is installed on the mounting plate, blind hole described in the first pressing plate through-hole alignment, in step
In S2, connection bolt is bolted in the first pressing plate through-hole and is extend into the blind hole.
Preferably, the both ends of the pressing plate are provided with the second pressing plate through-hole, and it is logical that mounting plate is provided on the mounting plate
Hole；In the step S2, by fastener through the second pressing plate through-hole and the mounting plate through-hole to install the pressing plate
In the mounting plate.
Preferably, which comprises the mounting plate is connected to the surface of the monitored part by welding.
Preferably, the groove for installing the sealing ring is provided on the bottom surface of the flange；In step sl, described
Groove is arranged around the central through hole.
Preferably, the fastener is bolt, and the mounting plate through-hole is threaded hole；In step s 2, by the fastening
Part is spirally connected so that the pressing plate are installed on the mounting plate through the second pressing plate through-hole and with the mounting plate through-hole.
Preferably, in step s3, gasket is set between the end of the bolt and the surface of the monitored part.
Preferably, the method includes the step S0:S01 before step S1: smearing AB on the surface of the foil gauge
Glue simultaneously forms AB glue layer, so that the foil gauge is completely covered in the AB glue layer；S02: after the AB glue layer is fully cured,
Silicon rubber binder is smeared on the AB glue layer and forms silastic-layer, so that the AB glue is completely covered in the silastic-layer
Layer.
Preferably, it step S0 further include: S03: after the silastic-layer is fully cured, is pasted on the silastic-layer
Aluminium-foil paper, so that the silastic-layer is completely covered in the aluminium-foil paper.
Preferably, the area of the silastic-layer is greater than the area of the AB glue layer, and the area of the aluminium-foil paper is greater than institute
State the area of silastic-layer.
Through the above technical solutions, using the means of defence of foil gauge provided by the present application, due to the setting quilt of seal closure
It monitors on the surface of part to close foil gauge together with monitored surface, to effectively prevent the rubble of construction site, particle
Shock Deng other objects to foil gauge, so that foil gauge can adapt to the environment of construction site.
Detailed description of the invention
Fig. 1 is the schematic diagram using the foil gauge means of defence protection foil gauge of the preferred embodiment of the present invention；
Fig. 2 is the partial schematic diagram of the side view of Fig. 1；
Fig. 3 is the front view of the seal closure in Fig. 1；
Fig. 4 is the side view of the seal closure in Fig. 1；
Fig. 5 is the top view of the seal closure in Fig. 1；
Fig. 6 is the bottom view of the seal closure in Fig. 1；
Fig. 7 is the schematic diagram of the pressing plate in Fig. 1；
Fig. 8 is the schematic diagram of the mounting plate in Fig. 1.
Description of symbols
10- seal closure 11- main body 12- flange 13- central through hole 14- blind hole 15- groove
16- electrical connector through-hole 20- pressing plate 21- the first pressing plate through-hole 22- the second pressing plate through-hole
31- connection bolt 32- fastener 40- mounting plate 41- mounting plate through-hole
50- is monitored part
Specific embodiment
The application provides a kind of means of defence of foil gauge, as shown in Figure 1, the surface of monitored part 50 is arranged in foil gauge
On, this method includes providing the seal closure 10 that the foil gauge is closed together with the surface of monitored part 50.
Since the setting of seal closure is monitored on the surface of part to close foil gauge together with monitored surface, to have
Effect prevents shock of other objects such as rubble, particle of construction site to foil gauge, so that foil gauge can adapt to construct
The environment at scene, wherein seal closure 10 can select harder metal or alloy material, such as carbon steel, aluminium alloy etc., preferably
For Al-alloy parts, it can be achieved that the carrying of construction machinery product structural member, meets site operation environment.
Specifically, the seal closure 10 includes main body 11 and the flange 12 positioned at the bottom of the main body 11, the main body
Electrical connector through-hole 16 is provided on 11, the middle part of the flange has central through hole 13, and the bottom surface of the flange 12 is provided with
Sealing ring flexible, the sealing ring can be divided into following steps around the central through hole 13, the present processes: S1: will
The seal closure 10 is placed on the surface of the monitored part 50, so that the foil gauge is located at the foil gauge positioned at described
In the region of central through hole 13；S2: mounting plate 40 is set on the surface of the monitored part 50 so that the flange 12 is located at two
Between a mounting plate 40, pressing plate 20 is mounted on two mounting plates 40, so that the flange 12 is compressed in institute
It states in the gap formed between the surface of part and the monitored part 50 of the pressing plate 20 between two mounting plates 40,
So that the sealing ring is compressed between the flange 12 and the surface of the monitored part 50；S3: described electrical
Electrical waterproof connector is set on tab through-hole 16, and is drawn the connecting line of the foil gauge by the electrical waterproof connector.
Structure referring to fig. 1 and fig. 2, since the flange 12 of seal closure 10 is pressed in by pressing plate 20 table of monitored part 50
On face, and fixed by connection bolt 31, thus by foil gauge integral cover, the rubble, broken of construction site can be effectively prevent
The shock of other objects such as grain, so that foil gauge can adapt to the environment of construction site；And it is set on the lower surface of flange 12
It is equipped with sealing ring, and due to the reason that flange is compressed by pressing plate, the surface that sealing ring can be tightly attached to monitored part 50 makes close
Sealing cover 10 plays the role of waterproof and dustproof；Fig. 4 shows the electrical connector through-hole 16 in the main body of seal closure 10, and foil gauge is logical
It crosses electrical connector through-hole 16 to be electrically connected with extraneous monitoring device, be connect wherein electrical waterproof is arranged on electrical connector through-hole 16
Head can prevent liquid from penetrating into inside seal closure 10 by electrical connector through-hole 16.Wherein, pressing plate 20 can be selected and be sealed
Cover 10 identical Al-alloy parts.
Specifically, mounting plate 40 is set in the two sides of seal closure 10, so that flange 12 is located between two mounting plates 40, this
When pressing plate 20 is mounted between two mounting plates 40, enable to flange 12 to be located at the lower section of pressing plate 20, i.e. 12 quilt of flange
It is extruded in the gap formed between the surface of part and monitored part 50 of the pressing plate 20 between two mounting plates 40.
As shown in Figure 1, mounting plate 40 supports the opposite both ends of pressing plate 20, so that pressing plate 20 and monitored part 50
The gap for accommodating flange 12 is formed between surface, flange 12 protrudes on the alignment pressing plate of the blind hole 14 in the gap and on flange 12
The first pressing plate through-hole 21, the first pressing plate through-hole 21 be bolt, enable connection bolt 31 be bolted in the first pressing plate through-hole 21
And it protrudes into blind hole 14, therefore the end by screwing the i.e. adjustable connection bolt 31 of connection bolt 31 squeezes the journey of blind hole 14
Degree, to adjust the degree that flange 12 squeezes sealing ring.
In order to which mounting plate is fixedly connected with pressing plate, it is preferable that the both ends of the pressing plate are provided with the second pressing plate through-hole
22, mounting plate through-hole 41 is provided on the mounting plate 40；In the step S2, fastener 32 is led to through second pressing plate
Hole 22 and the mounting plate through-hole 41 are to be installed on the mounting plate 40 for the pressing plate 20.
With reference to structure shown in Fig. 2, the opposite sides of flange 12 is provided with a pressing plate 20, and two mounting plates 20 are distinguished
Support the opposite both ends of pressing plate 20, wherein mounting plate through-hole 41 is provided on mounting plate 40, on mounting plate 41 and pressing plate 20
Second pressing plate through-hole 22 aligns, enable fastener 32 simultaneously through the second pressing plate through-hole 22 and mounting plate through-hole 41 to
Pressing plate 20 is mounted on mounting plate 40.Wherein, pressing plate 20 is preferably removably mounted on mounting plate 40, specifically, tightly
Firmware 32 selects bolt, and the second pressing plate through-hole 22 is simple round holes, and mounting plate through-hole 41 is bolt hole, by this structure,
Pressing plate 20 is limited on mounting plate 40 by bolt.Furthermore, it is possible to configure the thickness greater than flange for the thickness of mounting plate, pass through
Screw the degree of the adjustable second fastener crush ribs of fastener 32.
Fig. 3 to Fig. 6 is the view at each visual angle of seal closure 10, from figure 5 it can be seen that flange 12 has blind hole 14
Two sides are wider, and in addition two sides are relatively narrow, and there are the two sides of blind hole 14 to be used to form contact with pressing plate 20 thus need enough width
Degree is suitable for installing pressing plate 20, and in addition it is more compact to design the relatively narrow layout for making safeguard structure for two sides.
Fig. 4 and Fig. 6 also shows the groove 15 being arranged on the bottom surface of flange 12, and groove 15 is for accommodating sealing flexible
Circle, when on the surface that flange 12 is pressed in monitored part 50, sealing ring 15 is compressed in groove 15 and monitored part 50
On surface, to effectively play the effect of waterproof and dustproof.
Mounting plate 40 is arranged in by welding on the surface of monitored part 50, for example mounting plate 40 can select carbon
The connection type of steel, welding is relatively stable, to guarantee that stablizing for pressing plate 20 is installed.Certainly, all in order to avoid influencing foil gauge
Mounting plate 40 can also be arranged further from seal closure by the safeguard structure of the stress distribution enclosed, foil gauge provided by the present application
10, so that the monitoring of foil gauge may be adversely affected by preventing the welding of mounting plate 40.Wherein, pressing plate 20 preferably can
It is releasably mounted on mounting plate 40,
If foil gauge fails, when needing replacing foil gauge, the bolt connection between pressing plate 20 and mounting plate 40 is released
Pressing plate 20 and 10 entirety of seal closure can be removed, foil gauge can be replaced, pressing plate 20 is reconnected after replacement
With mounting plate 40.
In order to protect the surface of monitored part, in step s 2, end and the monitored part 50 in fastener 32
Gasket is set between surface.
Fig. 7 shows the structure of the pressing plate 20 of the preferred embodiment of the application, wherein from one end to another on pressing plate 20
End is set gradually there are six through-hole, and being located in the middle two through-holes is for the first pressing plate through-hole 21 with flange 12, remaining is logical
Hole is the second pressing plate through-hole 22 for connecting with mounting plate 40.Fig. 8 shows the mounting plate of the preferred embodiment of the application
40 structure, there are four the mounting plate through-holes 41 for cooperating with pressing plate 20 for tool on mounting plate 40.
It, can be to foil gauge after on strain gauge adhesion to the surface of monitored part 50 and before bonnet seal cover 10
Smear etc. the protection of type, specifically, method provided by the present application further includes the step S0 carried out before step S1, step
Rapid S0 includes: S01: smearing AB glue on the surface of the foil gauge and forms AB glue layer, so that institute is completely covered in the AB glue layer
State foil gauge；S02: after the AB glue layer is fully cured, silicon rubber binder is smeared on the AB glue layer and forms silicon rubber
Glue-line, so that the AB glue layer is completely covered in the silastic-layer；S03: after the silastic-layer is fully cured, in the silicon
Aluminium-foil paper is pasted in rubber layer, so that the silastic-layer is completely covered in the aluminium-foil paper.
In step S01, foil gauge is completely covered for AB glue layer so that foil gauge itself has certain waterproof and dampproof energy
Power；In step S02, silicon rubber binder is smeared on AB glue layer, and form silastic-layer, silicon rubber has excellent sealing
Humidity resistance, ageing-resistant performance and electrical insulation capability can prevent the connecting line short circuit of foil gauge, in addition, silastic-layer hardens
There is certain hardness afterwards, so that foil gauge also has certain protecting against shock performance, wherein when smearing silicon rubber, it shall be guaranteed that
AB glue layer is not only completely covered in the silastic-layer of formation, and the area of silastic-layer is also greater than AB glue layer；In step S03, aluminium
Foil paper enable to foil gauge from electrostatic interference and electromagnetic interference, wherein pasting aluminium-foil paper constantly, it shall be guaranteed that formed
Aluminium-foil paper silastic-layer is completely covered and the area of aluminium-foil paper is also greater than silastic-layer.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited thereto.At this
It, can be with various simple variants of the technical solution of the present invention are made in the range of the technology design of invention.Including each particular technique
Feature is combined in any suitable manner.In order to avoid unnecessary repetition, the present invention is to various combinations of possible ways
No further explanation will be given.But it should also be regarded as the disclosure of the present invention for these simple variants and combination, belongs to the present invention
Protection scope.
Claims (10)
1. a kind of means of defence of foil gauge, the foil gauge setting is on the surface of monitored part (50), which is characterized in that should
Method includes providing the seal closure (10) that the foil gauge is closed together with the surface of the monitored part (50).
2. the means of defence of foil gauge according to claim 1, which is characterized in that the seal closure (10) includes main body
(11) and be located at the main body (11) bottom flange (12), be provided with electrical connector through-hole (16) on the main body (11),
The middle part of the flange has central through hole (13), and the bottom surface of the flange (12) is provided with sealing ring flexible, the sealing
Ring around the central through hole (13), this method comprises:
S1: the seal closure (10) being placed on the surface of the monitored part (50), so that the foil gauge is positioned at described
Foil gauge is located in the region of the central through hole (13)；
S2: in the surface of the monitored part (50) setting mounting plate (40) so that the flange (12) is located at two installations
Between plate (40), pressing plate (20) is mounted on two mounting plates (40) so that the flange (12) be compressed in it is described
Between being formed between the surface of part and the monitored part (50) of the pressing plate (20) between two mounting plates (40)
In gap, so that the sealing ring is compressed between the flange (12) and the surface of the monitored part (50)；
S3: electrical waterproof connector is set on the electrical connector through-hole (16), and will be described by the electrical waterproof connector
The connecting line of foil gauge is drawn.
3. the means of defence of foil gauge according to claim 2, which is characterized in that be provided with first on the pressing plate (20)
Pressing plate through-hole (21), the first pressing plate through-hole (21) are threaded hole, are provided with blind hole (14) on the flange (12), will be described
When pressing plate (20) is installed on the mounting plate (40), the first pressing plate through-hole (21) is directed at the blind hole (14), in step S2
In, connection bolt (31) is bolted in the first pressing plate through-hole (21) and is extend into the blind hole (14).
4. the means of defence of foil gauge according to claim 2, which is characterized in that the both ends of the pressing plate are provided with
Two pressing plate through-holes (22) are provided with mounting plate through-hole (41) on the mounting plate (40)；In the step S2, by fastener (32)
Through the second pressing plate through-hole (22) and the mounting plate through-hole (41) the pressing plate (20) is installed on the mounting plate
(40)。
5. the means of defence of foil gauge according to claim 1, which is characterized in that the described method includes: will by welding
The mounting plate (40) is connected to the surface of the monitored part (50).
6. the means of defence of foil gauge according to claim 2, which is characterized in that be arranged on the bottom surface of the flange (12)
There is the groove (15) for installing the sealing ring；In step sl, the groove (15) sets around the central through hole (13)
It sets.
7. the means of defence of foil gauge according to claim 4, which is characterized in that the fastener (32) is bolt, institute
Stating mounting plate through-hole (41) is threaded hole；In step s 2, the fastener (32) are run through into the second pressing plate through-hole (22)
And it is spirally connected with the mounting plate through-hole (41) the pressing plate (20) is installed on the mounting plate (40).
8. the means of defence of foil gauge according to claim 7, which is characterized in that in step s 2, in the fastener
(32) gasket is set between the surface of end and the monitored part (50).
9. foil gauge means of defence described in any one of -8 according to claim 1, which is characterized in that the method includes
Step S0 before step S1:
S01: AB glue is smeared on the surface of the foil gauge and forms AB glue layer, so that the strain is completely covered in the AB glue layer
Piece；
S02: after the AB glue layer is fully cured, silicon rubber binder is smeared on the AB glue layer and forms silastic-layer,
So that the AB glue layer is completely covered in the silastic-layer,
Wherein it is preferred to step S0 further include:
S03: after the silastic-layer is fully cured, pasting aluminium-foil paper on the silastic-layer, so that the aluminium-foil paper is complete
Silastic-layer described in all standing.
10. the means of defence of foil gauge according to claim 9, which is characterized in that the area of the silastic-layer is greater than
The area of the AB glue layer, the area of the aluminium-foil paper are greater than the area of the silastic-layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811331506.5A CN109520462A (en) | 2018-11-09 | 2018-11-09 | Protection method of strain gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811331506.5A CN109520462A (en) | 2018-11-09 | 2018-11-09 | Protection method of strain gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109520462A true CN109520462A (en) | 2019-03-26 |
Family
ID=65774470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811331506.5A Pending CN109520462A (en) | 2018-11-09 | 2018-11-09 | Protection method of strain gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109520462A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070151357A1 (en) * | 2005-12-30 | 2007-07-05 | Kurtz Anthony D | Hermetically sealed displacement sensor apparatus |
| CN201463876U (en) * | 2009-03-06 | 2010-05-12 | 上海宝冶工程技术有限公司 | Strain foil protection structure suitable for field installation |
| CN103913260A (en) * | 2014-04-17 | 2014-07-09 | 西北工业大学 | Pressure testing sensor for resistance spot welding |
| CN203782747U (en) * | 2013-12-30 | 2014-08-20 | 上海市隧道工程轨道交通设计研究院 | Pressing part system used for immersed tube tunnel GINA water-stop |
| CN205785161U (en) * | 2016-05-24 | 2016-12-07 | 兰州交通大学 | A kind of temperature control subgrade soil deformation and frost-heave force tester |
| CN207351474U (en) * | 2017-08-28 | 2018-05-11 | 北京首钢冷轧薄板有限公司 | A kind of protective device of encoder |
| CN108709492A (en) * | 2018-08-24 | 2018-10-26 | 霍丁格包尔文(苏州)电子测量技术有限公司 | A kind of hermetically sealed strain gauge transducer |
-
2018
- 2018-11-09 CN CN201811331506.5A patent/CN109520462A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070151357A1 (en) * | 2005-12-30 | 2007-07-05 | Kurtz Anthony D | Hermetically sealed displacement sensor apparatus |
| CN201463876U (en) * | 2009-03-06 | 2010-05-12 | 上海宝冶工程技术有限公司 | Strain foil protection structure suitable for field installation |
| CN203782747U (en) * | 2013-12-30 | 2014-08-20 | 上海市隧道工程轨道交通设计研究院 | Pressing part system used for immersed tube tunnel GINA water-stop |
| CN103913260A (en) * | 2014-04-17 | 2014-07-09 | 西北工业大学 | Pressure testing sensor for resistance spot welding |
| CN205785161U (en) * | 2016-05-24 | 2016-12-07 | 兰州交通大学 | A kind of temperature control subgrade soil deformation and frost-heave force tester |
| CN207351474U (en) * | 2017-08-28 | 2018-05-11 | 北京首钢冷轧薄板有限公司 | A kind of protective device of encoder |
| CN108709492A (en) * | 2018-08-24 | 2018-10-26 | 霍丁格包尔文(苏州)电子测量技术有限公司 | A kind of hermetically sealed strain gauge transducer |
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Application publication date: 20190326 |
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