CN113267205A - Optical fiber MEMS sensor for cable joint - Google Patents
Optical fiber MEMS sensor for cable joint Download PDFInfo
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- CN113267205A CN113267205A CN202110821937.5A CN202110821937A CN113267205A CN 113267205 A CN113267205 A CN 113267205A CN 202110821937 A CN202110821937 A CN 202110821937A CN 113267205 A CN113267205 A CN 113267205A
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- 239000013307 optical fiber Substances 0.000 title abstract description 6
- 239000000835 fiber Substances 0.000 claims description 25
- 238000003825 pressing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 238000010030 laminating Methods 0.000 abstract description 2
- 239000000523 sample Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
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- 239000002390 adhesive tape Substances 0.000 description 2
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- 238000006467 substitution reaction Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000012530 fluid Substances 0.000 description 1
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- 238000012552 review Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/264—Mechanical constructional elements therefor ; Mechanical adjustment thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B7/00—Microstructural systems; Auxiliary parts of microstructural devices or systems
- B81B7/02—Microstructural systems; Auxiliary parts of microstructural devices or systems containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems [MEMS]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/16—Elements for restraining, or preventing the movement of, parts, e.g. for zeroising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/268—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light using optical fibres
Abstract
The invention discloses an optical fiber MEMS sensor for a cable joint, which comprises a sensing component and a fastening component, wherein the fastening component comprises an annular fastening strip, a mounting hole is formed in the middle of the annular fastening strip, and the sensing component is mounted in the mounting hole; the locking assembly comprises a locking piece, the locking piece is provided with a through hole, and two ends of the annular fastening strip penetrate through the through hole; through the fixing of using annular clamp to the sensor, can guarantee that the probe laminating of sensor is on cable joint's surface.
Description
Technical Field
The invention relates to the field of sensors, in particular to an optical fiber MEMS sensor for a cable joint.
Background
With the continuous development of power grids, the application of power cables is more and more extensive, and the cable detection technology becomes an important subject of the power industry increasingly. The electric field stress of the power cable intermediate head is concentrated, and the electric field stress is a weak link for power cable insulation, so that the cable breakdown is easily caused by the deterioration of the cable insulation performance, and the partial discharge problem is generated. The partial discharge problem of the high-voltage cable joint is a main factor causing high-voltage cable accidents, and the detection and early warning work of the high-voltage cable joint is well done, which is the primary work for ensuring the normal operation of the high-voltage cable. In the prior art, the sensor arranged on the cable joint is usually wound and fixed by using an adhesive tape, so that the installation mode is not firm, and the acquired data has larger deviation.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and in this section as well as in the abstract and the title of the invention of this application some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made keeping in mind the above problems occurring in the prior art and/or the problems occurring in the prior art.
Therefore, the technical problem to be solved by the invention is that the sensor installed on the cable joint is usually fixed by winding an adhesive tape in the prior art, and the installation mode is not firm and has large deviation of collected data.
In order to solve the technical problems, the invention provides the following technical scheme: a fiber optic MEMS sensor for a cable splice comprising, a sensing assembly; the fastening assembly comprises an annular fastening strip, a mounting hole is formed in the middle of the annular fastening strip, and the sensing assembly is mounted in the mounting hole; the locking assembly comprises a locking piece, the locking piece is provided with a through hole, and the two ends of the annular fastening strip penetrate through the through hole.
As a preferable aspect of the fiber MEMS sensor for a cable joint according to the present invention, wherein: the side surfaces of the two ends of the annular fastening strip are respectively provided with a ratchet bar, and the two ratchet bars at the two ends are symmetrical in structure.
As a preferable aspect of the fiber MEMS sensor for a cable joint according to the present invention, wherein:
the locking piece is provided with a sliding groove perpendicular to the length direction of the through hole, the sliding groove penetrates through the through hole, a sliding piece is arranged in the sliding groove, and one end of the sliding piece can be embedded into a tooth groove of the ratchet bar.
As a preferable aspect of the fiber MEMS sensor for a cable joint according to the present invention, wherein: one end of the sliding piece close to the ratchet bar is consistent with the profile of the ratchet bar tooth groove, and a first spring is arranged between the other end of the sliding piece and the bottom of the sliding groove.
As a preferable aspect of the fiber MEMS sensor for a cable joint according to the present invention, wherein: the locking piece is also provided with a reset groove which penetrates through the sliding groove.
As a preferable aspect of the fiber MEMS sensor for a cable joint according to the present invention, wherein: the slider is provided with the adjustment tank, the adjustment tank is including being close to dodge the groove of ratchet and keeping away from the dovetail groove of ratchet, it is the rectangle to dodge the groove, the dovetail groove is kept away from the face of dodging the groove is the inclined plane.
As a preferable aspect of the fiber MEMS sensor for a cable joint according to the present invention, wherein: reset the inslot and be provided with the piece that resets, the piece that resets passes the adjustment tank, the piece that resets is pressed down end, conflict section and is extended the end, conflict section with the profile in dovetail groove is unanimous, conflict section is including the conflict inclined plane, the conflict inclined plane with the inclined plane in dovetail groove parallels.
As a preferable aspect of the fiber MEMS sensor for a cable joint according to the present invention, wherein: the groove that resets holds the part that extends the end is provided with the cavity, the end-to-end connection who extends the end has sealed dish, sealed dish is located in the cavity, sealed dish with be provided with the second spring between the cavity terminal surface, sealed dish with form sealed chamber M between the cavity terminal surface.
As a preferable aspect of the fiber MEMS sensor for a cable joint according to the present invention, wherein: the reset piece is provided with a vent hole leading to the inside of the sealed cavity M, a vent cavity is arranged on the part of the vent hole positioned at the pressing end, the diameter of the vent cavity is larger than that of the vent hole, the vent cavity is provided with a ball and an elastic piece, the ball is positioned at one side close to the inside of the sealed cavity M, and the diameter of the ball is larger than that of the vent hole and smaller than that of the vent cavity;
and the ball is provided with an air leakage hole along the axial direction of the vent hole.
As a preferable aspect of the fiber MEMS sensor for a cable joint according to the present invention, wherein: the fastening assembly and the locking assembly are both of symmetrical structures.
The invention has the beneficial effects that: through using annular clamp to fixed of sensor, can guarantee that the probe laminating of sensor is on cable joint's surface, detects cable joint's abnormal conditions better, and the installation is simple firm, the dismantlement is also more convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a schematic structural diagram of a fiber optic MEMS sensor for a cable joint according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a fiber optic MEMS sensor for a cable connector according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a slider in a fiber MEMS sensor for a cable joint according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a reset element in a fiber MEMS sensor for a cable connector according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a locking assembly in a fiber optic MEMS sensor for a cable connector according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a reset element and a ball in an optical fiber MEMS sensor for a cable connector according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration when describing the embodiments of the present invention, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Examples
Referring to fig. 1 to 6, the present embodiment provides an optical fiber MEMS sensor for a cable joint, including a sensing component 100, a fastening component 200, and a locking component 300, where the sensing component 100 is a MEMS sensor, the fastening component 200 is used to fix the MEMS sensor on the cable joint, and the locking component 300 is used to position the fastening component 200.
Specifically, the fastening assembly 200 comprises an annular fastening strip 201, the annular fastening strip 201 is annular, and is wrapped on the cable connector, wherein a mounting hole 201a is formed in the middle of the annular fastening strip 201, the sensing assembly 100 is installed in the mounting hole 201a, and the acquisition end of the sensing assembly 100 abuts against the cable connector and is used for acquiring data.
Further, the locking assembly 300 comprises a locking member 301, the locking member 301 is provided with a through hole 301a, two ends of the annular fastening strip 201 penetrate through the through hole 301a, and the annular fastening strip 201 can only move in a single direction after penetrating through the through hole, so that the locking member 301 has a fastening effect on the annular fastening strip 201;
wherein, the lateral surfaces of the two ends of the annular fastening strip 201 are both provided with a ratchet bar 201b, and the two ratchet bars 201b at the two ends have symmetrical structures. The ratchet bar 201b is positioned at the outer side, and two tooth surfaces of the ratchet bar 201b are perpendicular to the surface of the annular fastening bar 201 and inclined;
the locking member 301 is provided with a sliding groove 301b perpendicular to the length direction of the through hole 301a, and the sliding groove 301b intersects with, i.e., communicates with, the through hole 301 a. A sliding member 302 is disposed in the sliding groove 301b, and one end of the sliding member 302 can be inserted into the tooth slot of the ratchet bar 201b, because the sliding member 302 can move in the sliding groove 301b along the length direction of the sliding groove 301b, when one end of the sliding member 302 is inserted into the tooth slot of the ratchet bar 201b, the locking member 301 is restricted from falling off from the annular fastening strip 201, and when the sliding member 302 is retracted into the sliding groove 301b, the locking member 301 can fall off from the annular fastening strip 201, and the fastening assembly 200 is not fastened to the cable connector.
Preferably, one end of the slider 302 close to the ratchet bar 201b is in line with the contour of the tooth slot of the ratchet bar 201b, and a first spring 303 is disposed between the other end of the slider 302 and the bottom of the sliding slot 301 b. The spring of first spring 303 causes one end of slider 302 to abut against the inside of the ratchet slot 201 b.
Further, the latch 301 is provided with a reset groove 301c penetrating the slide groove 301 b. The length direction of the reset groove 301c is perpendicular to the moving direction of the slider 302; the sliding member 302 is provided with an adjusting groove 302a, the adjusting groove 302a penetrates through the sliding member 302, the cross section of the adjusting groove 302a is integrally in a right trapezoid shape, the adjusting groove 302a comprises an avoiding groove 302b close to the ratchet bar 201b and a trapezoid groove 302c far away from the ratchet bar 201b, the avoiding groove 302b is rectangular, and the surface of the trapezoid groove 302c far away from the avoiding groove 302b is an inclined surface.
Further, a reset piece 304 is arranged in the reset groove 301c, the reset piece 304 can move in the reset groove 301c along a direction perpendicular to the moving direction of the sliding piece 302, the reset piece 304 passes through the adjusting groove 302a, the reset piece 304 presses the end 304a, the interference section 304b and the extending end 304c, the interference section 304b is located between the pressing end 304a and the extending end 304c, the interference section 304b is consistent with the profile of the trapezoidal groove 302c, the interference section 304b comprises an interference inclined surface 304d, and the interference inclined surface 304d is parallel to the inclined surface of the trapezoidal groove 302 c.
Therefore, when the annular fastening strip 201 encircles the cable connector, two ends of the annular fastening strip 201 penetrate through the through hole 301a and are fastened, each time one end of the sliding piece 302 passes over one tooth of the ratchet bar 201b, the annular fastening strip 201 becomes tighter and tighter, in the process, when the sliding piece 302 passes over the ratchet, the sliding piece 302 also moves in the sliding groove 301b, and at the moment, the collision section 304b of the reset piece 304 moves into the avoiding groove 302b, no mutual acting force can be generated between the collision inclined surface 304d of the collision section 304b and the trapezoidal groove 302c, so that the locking piece 301 moves towards the direction of fastening the annular fastening strip 201.
Further, a cavity 301d is formed in a portion of the reset groove 301c, which receives the extension end 304c, a sealing disc 305 is connected to the end of the extension end 304c, the sealing disc 305 is located in the cavity 301d, the sealing disc 305 moves in the cavity 301d along the axial direction of the cavity 301d to be equivalent to a piston, a second spring 306 is arranged between the sealing disc 305 and the end surface of the cavity 301d, the second spring 306 is a pressure spring, and pushes the extension end 304c to enable the interference section 304b to be located in the adjustment groove 302a, wherein a sealing cavity M is formed between the sealing disc 305 and the end surface of the cavity 301 d.
When the reset member 304 is pressed, the interference inclined surface 304d of the interference section 304b pushes the inclined surface of the trapezoidal groove 302c to disengage the sliding member 302 from the spline groove of the ratchet bar 201b, and the locking member 301 can be removed from the ring-shaped fastening bar 201.
Preferably, the returning member 304 is provided with a vent hole 304e leading to the inside of the sealed cavity M, a vent cavity 304f is provided at a portion of the vent hole 304e located at the pressing end 304a, a diameter of the vent cavity 304f is larger than that of the vent hole 304e, the vent cavity 304f is provided with a ball 307 and an elastic member 308, the ball 307 is located at a side close to the inside of the sealed cavity M, the diameter of the ball 307 is larger than that of the vent hole 304e and smaller than that of the vent cavity 304f, the ball 307 is provided with a release hole 307a along an axial direction of the vent hole 304e, it should be noted that the release hole 307a is much smaller than that of the vent hole 304e, that is, a gas flow rate which the release hole 307a can pass through is much smaller than a gap between the vent hole 304e and the ball 307. The elastic member 308 is a spring, in an initial state, the ball 307 is abutted to the vent hole 304e by the elastic member 308, the fluid in the sealed cavity M cannot be discharged basically, when the pressing end 304a is pressed down, the gas in the sealed cavity M is compressed, the gas is discharged from the vent hole 304 and the vent cavity 304f, because the gas flow rate of the gas which can pass through the gas release hole 307a is far smaller than the gas flow rate of the gap between the vent hole 304e and the ball 307, the reset member 304 can reset slowly, in the process of slow reset, the sliding member 302 is disengaged from the tooth groove of the ratchet 201b, and at this time, the locking member 301 can be taken down.
It should be noted that the fastening assembly 200 and the locking assembly are symmetrical structures.
In this embodiment, the locking assembly 300 can fix the annular fastening strip 201 and the sensing assembly 100 at the cable joint, and has a good fastening effect and convenient detachment.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A fiber optic MEMS sensor for a cable splice, comprising: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a sensing assembly (100);
the fastening assembly (200) comprises a ring-shaped fastening strip (201), a mounting hole (201 a) is formed in the middle of the ring-shaped fastening strip (201), and the sensing assembly (100) is mounted in the mounting hole (201 a);
the locking assembly (300) comprises a locking piece (301), wherein the locking piece (301) is provided with a through hole (301 a), and two ends of the annular fastening strip (201) penetrate through the through hole (301 a).
2. The fiber optic MEMS sensor for a cable splice of claim 1, wherein: the side surfaces of two ends of the annular fastening strip (201) are respectively provided with a ratchet bar (201 b), and the two ratchet bars (201 b) at the two ends are symmetrical in structure.
3. The fiber optic MEMS sensor for a cable splice of claim 2, wherein: the locking piece (301) is provided with a sliding groove (301 b) perpendicular to the length direction of the through hole (301 a), the sliding groove (301 b) penetrates through the through hole (301 a), a sliding piece (302) is arranged in the sliding groove (301 b), and one end of the sliding piece (302) can be embedded into a tooth groove of the ratchet bar (201 b).
4. The fiber optic MEMS sensor for a cable splice of claim 3, wherein: one end of the sliding piece (302) close to the ratchet bar (201 b) is consistent with the outline of the tooth groove of the ratchet bar (201 b), and a first spring (303) is arranged between the other end of the sliding piece (302) and the bottom of the sliding groove (301 b).
5. The fiber optic MEMS sensor for cable joints according to claim 4, wherein: the locking piece (301) is further provided with a reset groove (301 c) which penetrates through the sliding groove (301 b).
6. The fiber optic MEMS sensor for a cable splice of claim 5, wherein: slider (302) are provided with adjustment groove (302 a), adjustment groove (302 a) is including being close to dodge groove (302 b) of ratchet bar (201 b) and keeping away from trapezoidal groove (302 c) of ratchet bar (201 b), dodge groove (302 b) and be the rectangle, trapezoidal groove (302 c) is kept away from the face of dodging groove (302 b) is the inclined plane.
7. The fiber optic MEMS sensor for a cable splice of claim 6, wherein: reset and be provided with piece (304) that resets in groove (301 c), reset piece (304) and pass regulation groove (302 a), reset piece (304) and press end (304 a), conflict section (304 b) and extend end (304 c), conflict section (304 b) with the profile of dovetail groove (302 c) is unanimous, conflict section (304 b) is including conflict inclined plane (304 d), conflict inclined plane (304 d) with the inclined plane of dovetail groove (302 c) parallels.
8. The fiber optic MEMS sensor for a cable splice of claim 7, wherein: reset groove (301 c) are held the part that extends end (304 c) is provided with cavity (301 d), the end-to-end connection that extends end (304 c) has sealed dish (305), sealed dish (305) are located in cavity (301 d), sealed dish (305) with be provided with second spring (306) between cavity (301 d) terminal surface, sealed dish (305) with form sealed chamber (M) between cavity (301 d) terminal surface.
9. The fiber optic MEMS sensor for a cable splice of claim 8, wherein: the resetting piece (304) is provided with a vent hole (304 e) leading into the sealed cavity (M), the part of the vent hole (304 e) positioned at the pressing end (304 a) is provided with a vent cavity (304 f), the diameter of the vent cavity (304 f) is larger than that of the vent hole (304 e), the vent cavity (304 f) is provided with a ball (307) and an elastic piece (308), the ball (307) is positioned at one side close to the inside of the sealed cavity (M), and the diameter of the ball (307) is larger than that of the vent hole (304 e) and smaller than that of the vent cavity (304 f);
the ball (307) is provided with a gas release hole (307 a) along the axial direction of the vent hole (304 e).
10. The fiber optic MEMS sensor for a cable splice of claim 9, wherein: the fastening assembly (200) and the locking assembly (300) are both symmetrical structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110821937.5A CN113267205B (en) | 2021-07-21 | 2021-07-21 | Optical fiber MEMS sensor for cable joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110821937.5A CN113267205B (en) | 2021-07-21 | 2021-07-21 | Optical fiber MEMS sensor for cable joint |
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| CN113267205A true CN113267205A (en) | 2021-08-17 |
| CN113267205B CN113267205B (en) | 2021-10-19 |
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| CN2655004Y (en) * | 2003-12-02 | 2004-11-10 | 张海杰 | Clip with contractible two sides at the same time |
| CN102623928A (en) * | 2012-04-01 | 2012-08-01 | 安徽省电力公司马鞍山供电公司 | Grounding wire hook for overhead transmission line power cut overhaul |
| CN102705317A (en) * | 2012-05-08 | 2012-10-03 | 陈校波 | Hose bundle |
| US20170248258A1 (en) * | 2016-02-26 | 2017-08-31 | Janice Lin | Pipe coupler |
| CN206990339U (en) * | 2017-07-07 | 2018-02-09 | 青岛科技大学 | A kind of During Geotechnical Tests test specimen radial displacement measurement apparatus |
| CN208264154U (en) * | 2018-05-03 | 2018-12-21 | 任丘市星宇汽车配件有限公司 | Harness clamps |
| CN209356620U (en) * | 2018-11-19 | 2019-09-06 | 无锡新润源信息科技有限公司 | A kind of high-tension cable partial discharge monitoring device |
| CN210240848U (en) * | 2019-07-24 | 2020-04-03 | 浙江百盛水工业设备股份有限公司 | Low pressure pipeline clamp |
| CN211624484U (en) * | 2019-12-12 | 2020-10-02 | 苏州欣耐博机械科技有限公司 | Self-locking type clamp |
| CN211908225U (en) * | 2020-04-22 | 2020-11-10 | 郑州市泰安电力建设有限公司 | Cable hoop for power engineering |
| CN212480428U (en) * | 2020-05-09 | 2021-02-05 | 徐松 | Locking clamp hose clamp of fastener |
| CN212745419U (en) * | 2020-07-17 | 2021-03-19 | 无锡市金新阳科技有限公司 | Adjustable annular hoop |
| CN113108969A (en) * | 2021-03-26 | 2021-07-13 | 中国电力科学研究院有限公司 | Cable force measuring clamp |
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|---|---|
| CN113267205B (en) | 2021-10-19 |
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