CN108955816B - Tension stabilizing device for probe waveguide wire - Google Patents
Tension stabilizing device for probe waveguide wire Download PDFInfo
- Publication number
- CN108955816B CN108955816B CN201811137150.1A CN201811137150A CN108955816B CN 108955816 B CN108955816 B CN 108955816B CN 201811137150 A CN201811137150 A CN 201811137150A CN 108955816 B CN108955816 B CN 108955816B
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- wire
- waveguide
- waveguide wire
- piece
- elastic piece
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- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 19
- 239000000523 sample Substances 0.000 title claims abstract description 12
- 238000009434 installation Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a tension stabilizing device for a probe waveguide wire, and belongs to the technical field of petroleum detection. The device comprises a bearing piece, a mounting guide piece, an elastic piece, a wire, a waveguide wire and a waveguide wire fixing assembly, wherein the mounting guide piece is inserted into one end of the bearing piece, and the elastic piece and the waveguide wire fixing assembly are both arranged in the mounting guide piece; the elastic piece is provided with an axial pin and an electric connection part, the waveguide wire is arranged on the bearing piece and penetrates through the elastic piece to be contacted with the axial pin, and the part of the axial pin contacted with the waveguide wire is penetrated on the waveguide wire fixing assembly; the lead is arranged on the bearing piece and extends towards the direction of the elastic piece to be electrically connected with the electric connection part of the elastic piece. When the external environment changes, the device can enable the tension applied to the waveguide wire to change stably and linearly through the elastic piece, so that signals can be transmitted stably, and measurement accuracy is improved.
Description
Technical Field
The invention relates to the technical field of petroleum detection, in particular to a tension stabilizing device for a probe waveguide wire.
Background
At present, in the gasoline retail industry, equipment for measuring or metering oil in an oil tank is widely used, and compared with a manual measurement mode, the measuring equipment or metering equipment has the advantages of safety, accuracy and remote online management. The measuring device or metering device such as a probe transmits an electrical signal at a rated rate through the transmission of an electrical signal on a waveguide wire, reflects a signal when encountering a magnetic material, continues the original transmitted signal, and returns along a return line to measure a desired time parameter, thereby calculating the liquid level height. At present, probes for stably and precisely measuring liquid level are relatively few, and when the ambient temperature changes greatly or vibration is strong, the phenomena of disconnection and liquid level jump are generated, and the faults are caused by the fact that the pulling force of the waveguide wire cannot return or is blocked after the ambient temperature changes, so that disconnection or liquid level jump is caused, and finally the measurement precision of oil in an oil tank is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a tension stabilizing device for a probe waveguide wire, which is used for improving the stability and measurement accuracy of a probe.
In order to achieve the above purpose, the present invention proposes the following technical scheme: the tension stabilizing device comprises a bearing piece, an installation guide piece, an elastic piece, a wire, a waveguide wire and a waveguide wire fixing assembly, wherein the bearing piece is provided with a waveguide wire accommodating groove and a wire accommodating groove, the installation guide piece is inserted into one end of the bearing piece, the elastic piece and the waveguide wire fixing assembly are both arranged in the installation guide piece, and the elastic piece is positioned between the waveguide wire fixing assembly and the bearing piece;
The elastic piece is provided with an axial pin, the waveguide wire is arranged in the waveguide wire accommodating groove and extends towards the axial pin, the elastic piece penetrates through the elastic piece to be contacted with the axial pin, and the part, contacted with the waveguide wire, of the axial pin is penetrated on the waveguide wire fixing assembly;
the wire is arranged in the wire accommodating groove, extends towards the direction of the elastic piece and is electrically connected with the elastic piece.
Preferably, the device further comprises a plurality of waveguide wire fixing pieces sleeved on the waveguide wires, and the waveguide wire fixing pieces are arranged in the waveguide wire accommodating grooves.
Preferably, the installation guide member has a receiving cavity for installing the elastic member and the waveguide wire fixing assembly, a partition plate is arranged in the receiving cavity, and a first threading hole for passing the waveguide wire and a second threading hole for passing the conducting wire are arranged on the partition plate.
Preferably, the mounting guide member is further provided with an opening for facilitating the liquid to be detected to enter the mounting guide member and contact the waveguide wire.
Preferably, the elastic member has a first end portion and a second end portion disposed opposite to each other, the first end portion having the axial leg disposed thereon, and the second end portion having an electrical connection portion disposed thereon for electrical connection with the wire.
Preferably, the waveguide wire fixing assembly comprises a fixing sleeve, a waveguide wire fixing seat and a waveguide wire insulating seat, the waveguide wire fixing seat is arranged in the waveguide wire insulating seat, the fixing sleeve is sleeved on the contact part of the axial pin and the waveguide wire, and the fixing sleeve penetrates through the waveguide wire fixing seat and the waveguide wire insulating seat.
Preferably, the waveguide wire fixing assembly further comprises a pushing piece, the waveguide wire fixing seat is provided with a mounting hole matched with the pushing piece, the waveguide wire insulating seat is provided with a through hole for the pushing piece to pass through, and the mounting hole is aligned with the through hole.
Preferably, the device further comprises a protective shell, wherein the protective shell is sleeved on the bearing piece.
Preferably, the temperature measuring component comprises a line concentration terminal, a plurality of temperature sensors and a plurality of cables, wherein one end of each cable is connected with one temperature sensor, the opposite end of each cable is connected with the line concentration terminal, and the temperature sensors are arranged outside and inside the protective shell.
The beneficial effects of the invention are as follows:
(1) By directly connecting one end of the elastic piece with the wire and contacting the other end of the elastic piece with the waveguide wire, friction force does not exist between the wire and the elastic piece, when the external environment changes, the pulling force applied to the waveguide wire can stably and linearly change under the action of the elastic piece, signals can be finally and stably transmitted, the filtering or shielding of the signals is not needed by using software, the stability of the probe is improved, and the measurement precision is improved;
(2) The tension stabilizing device also has the advantages of low manufacturing cost and manpower and material resource saving.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an exploded schematic view of the present invention;
FIG. 3 is a schematic explosion diagram of the present invention;
FIG. 4 is a schematic perspective view of the socket of FIG. 2;
FIG. 5 is a right side schematic view of the mounting guide of FIG. 2;
FIG. 6 is a schematic perspective view of the elastic member of FIG. 2;
FIG. 7 is a schematic front view of a waveguide wire securing assembly;
FIG. 8 is a schematic cross-sectional view taken along line A-A of FIG. 7;
Fig. 9 is a perspective view of the temperature sensing assembly of fig. 2.
Reference numerals: 10. the device comprises a bearing piece, 11, a waveguide wire accommodating groove, 12, a wire accommodating groove, 20, an installation guide piece, 21, a partition plate, 211, a first threading hole, 212, a second threading hole, 30, an elastic piece, 31, an axial pin, 32, an electric connection part, 40, a wire, 50, a waveguide wire, 60, a waveguide wire fixing component, 61, a fixing sleeve, 62, a waveguide wire fixing seat, 621, an installation hole, 63, a waveguide wire insulating seat, 631, a through hole, 64, a pushing piece, 70, a waveguide wire fixing piece, 80, a protective shell, 90, a temperature measuring component, 91, a wire collecting terminal, 92, a temperature sensor, 93 and a cable.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
According to the tension stabilizing device for the probe waveguide wire, when the external environment changes, the tension applied to the waveguide wire can stably and linearly change under the action of the elastic piece, so that signals can be stably transmitted, and the measurement accuracy is improved.
Referring to fig. 1 to 9, a tension stabilizing device for a probe waveguide includes a carrier 10, a mounting guide 20, an elastic member 30, a wire 40, a waveguide 50, and a waveguide fixing assembly 60. The carrier 10 is used for mounting the waveguide wire 50 and the wire 40, and is provided with a waveguide wire accommodating groove 11 for accommodating the waveguide wire 50 and a wire accommodating groove 12 for accommodating the wire 40; the installation guide piece 20 is inserted into one end of the bearing piece 10, and the elastic piece 30 and the waveguide wire fixing assembly 60 are sequentially arranged in the installation guide piece 20 along the axial direction of the installation guide piece, wherein the elastic piece 30 is positioned between the waveguide wire fixing assembly 60 and the bearing piece 10; the elastic member 30 has an axial leg 31 and an electrical connection portion 32, the waveguide wire 50 is disposed in the waveguide wire accommodating groove 11, and extends in the axial leg 31 direction through the elastic member 30 to contact with the axial leg 31 of the elastic member 30, and a portion of the axial leg 31 contacting with the waveguide wire 50 is disposed on the waveguide wire fixing assembly 60; the lead wire 40 is installed in the lead wire receiving groove 12, and extends toward the elastic member 30 to be electrically connected to the electrical connection portion 32 of the elastic member 30.
Specifically, as shown in fig. 4, the carrier 10 has a first end face and a second end face disposed opposite to each other, wherein the first end face is recessed inward to form a waveguide wire receiving groove 11, and the second end face is recessed inward to form a wire receiving groove 12. In the specific implementation, the waveguide wire receiving groove 11 is a U-shaped groove, and the wire receiving groove 12 is preferably a rectangular groove. Of course, the waveguide wire accommodating groove 11 and the wire accommodating groove 12 may be formed on one or both end surfaces of the carrier 10 according to actual requirements, for example, the waveguide wire accommodating groove 11 and the wire accommodating groove 12 may be formed on two adjacent end surfaces of the carrier 10.
Further, as shown in fig. 2 and 3, the tension stabilizing device further includes a plurality of waveguide wire fixing members 70, where the waveguide wire fixing members 70 are hollow, and the plurality of waveguide wire fixing members 70 are sleeved on the waveguide wire 50 and installed in the waveguide wire accommodating groove 11, and when implemented, the waveguide wire fixing members 70 are disposed in the waveguide wire accommodating groove 11 at equal distances as best.
As shown in connection with fig. 2, 3 and 5, the mounting guide 20 is a hollow tubular structure having a receiving cavity in which the spring 30 and the wire fixing assembly 60 are mounted in practice. A partition plate 21 is arranged in the accommodating cavity, the partition plate 21 divides the accommodating cavity into two parts, one part is used for installing the elastic piece 30 and the waveguide wire fixing assembly 60, and the other part is used for inserting the bearing piece 10. The partition plate 21 is provided with a first threading hole 211 through which the waveguide wire 50 passes and a second threading hole 212 through which the guide wire 40 passes. In practice, the waveguide wire 50 passes through the first threading hole 211 and then contacts with the axial leg 31 of the elastic member 30, and the conducting wire 40 passes through the second threading hole 212 and then is electrically connected with the electrical connection portion 32 of the elastic member 30.
Further, the end of the mounting guide 20 is provided with an opening 22, said opening 22 facilitating the contact of the liquid to be detected with the waveguide wire 50.
As shown in fig. 6, the elastic member 30 is used for conducting electricity on the one hand and for generating elastic deformation on the other hand, so that the tensile force applied to the waveguide wire 50 generates stable linear variation. Specifically, the elastic member 30 includes an elastic body having a first end portion and a second end portion disposed opposite to each other, wherein the first end portion extends to form the axial leg 31, and the second end portion extends to form the electrical connection portion 32. In practice, the waveguide wire 50 is parallel to the axial leg 31 and contacts with the axial leg 31, and the conductive part on the wire 40 is electrically connected with the electrical connection part 32, because the wire 40 does not pass through the elastic member 30 and is only electrically connected to the end of the elastic member 30, the elastic member 30 serves as a part of the wire, so that no friction exists between the elastic member 30 and the wire 40, if deformation occurs, only the elastic member deforms, and the length of the wire 40 is not changed, thereby reducing abnormality and enabling the tension of the waveguide wire to be more stable.
In this embodiment, the axial leg 31 is a metal conductive rod formed by extending from a first end of the elastic body, and the metal conductive rod is disposed along the axial direction of the elastic member 30; the electrical connection portion 32 is a metal conductive ring formed by extending the second end portion of the elastic body.
As shown in fig. 7 and 8, the waveguide wire fixing assembly 60 includes a fixing sleeve 61, a waveguide wire fixing seat 62 and a waveguide wire insulating seat 63, wherein the fixing sleeve 61 is a hollow tubular structure for fixing a portion where the axial leg 31 and the waveguide wire 50 are in contact, and in practice, the fixing sleeve 61 is sleeved on the portion where the axial leg 31 and the waveguide wire 50 are in contact; the waveguide wire fixing seat 62 is used for installing and fixing the fixing sleeve 61, the waveguide wire insulating seat 63 is used for insulating the waveguide wire fixing seat 62 from the elastic piece 30, and when the device is implemented, the waveguide wire fixing seat 62 is arranged in the waveguide wire insulating seat 63, and the fixing sleeve 61 penetrates through the waveguide wire fixing seat 62 and the waveguide wire insulating seat 63 along the axial direction of the waveguide wire fixing seat 62.
In this embodiment, the cross section of the waveguide wire insulating base 63 is U-shaped.
Further, the waveguide wire fixing assembly 60 further includes a pushing member 64 for pressing the fixing sleeve 61. Specifically, the waveguide wire fixing seat 62 is provided with a mounting hole 621 matched with the pushing piece 64, the waveguide wire insulating seat 63 is further provided with a through hole 631 for the pushing piece 64 to pass through, and when the device is implemented, the waveguide wire fixing seat 62 is installed in the waveguide wire insulating seat 63, the mounting hole 621 is aligned with the through hole 631, the pushing piece 64 passes through the through hole 631 to be screwed with the mounting hole 621, and finally the fixing sleeve 61 is pressed. By pressing the fixing sleeve 61, the waveguide wire 50 is prevented from moving.
In this embodiment, the pushing member 64 is a fastening bolt, and the mounting hole 621 is a bolt hole matching the fastening bolt.
As shown in fig. 1 and 2, the device further includes a protective housing 80, where the protective housing 80 is a hollow tubular structure, and is sleeved on the carrier 10, so as to protect the waveguide wire 50 and the conductive wire 40.
As shown in fig. 9, the apparatus further includes a temperature measuring assembly 90 mounted on the carrier 10 for measuring the temperature of the liquid to be measured. Specifically, the temperature measuring assembly includes a wire collecting terminal 91, a plurality of temperature sensors 92 and a plurality of cables 93, wherein one end of each cable 93 is connected to a temperature sensor 92, and the other end is connected to the wire collecting terminal 91. In practice, the length of the cable 93 is different, so that the temperature sensors 92 can measure the temperature of different parts of the liquid, a plurality of temperature sensors 92 are disposed in the wire accommodating groove 12, and a plurality of temperature sensors 92 are disposed outside the protective housing 80 to measure the temperature of the liquid.
While the foregoing has been disclosed in the specification and drawings, it will be apparent to those skilled in the art that various substitutions and modifications may be made without departing from the spirit of the invention, and it is intended that the scope of the invention be limited not by the specific embodiments disclosed, but by the appended claims.
Claims (9)
1. The tension stabilizing device for the probe waveguide wire is characterized by comprising a bearing piece, an installation guide piece, an elastic piece, a wire, a waveguide wire and a waveguide wire fixing assembly, wherein the bearing piece is provided with a waveguide wire accommodating groove and a wire accommodating groove, the installation guide piece is inserted into one end of the bearing piece, the elastic piece and the waveguide wire fixing assembly are both arranged in the installation guide piece, and the elastic piece is positioned between the waveguide wire fixing assembly and the bearing piece;
The elastic piece comprises an elastic body, and an axial pin and an electric connection part which are formed by extending from the elastic body, the waveguide wire is arranged in the waveguide wire accommodating groove and passes through the elastic piece to be contacted with the axial pin of the elastic piece, and the part of the axial pin contacted with the waveguide wire is arranged on the waveguide wire fixing assembly in a penetrating way;
The wire is arranged in the wire accommodating groove, extends towards the direction of the elastic piece and is electrically connected with the electric connection part of the elastic piece.
2. The tension stabilizing device according to claim 1, further comprising a plurality of waveguide wire fixing members sleeved on the waveguide wires, wherein the waveguide wire fixing members are installed in the waveguide wire accommodating grooves.
3. The tension stabilizing apparatus according to claim 1, wherein the installation guide has a receiving chamber for receiving the elastic member and the waveguide fixing assembly, a partition plate is provided in the receiving chamber, and a first threading hole for passing the waveguide and a second threading hole for passing the wire are provided in the partition plate.
4. The tension stabilizing device of claim 1 wherein the mounting guide is further provided with an opening for facilitating the entry of the liquid to be tested into the mounting guide for contact with the waveguide wire.
5. The tension stabilizing device of claim 1 wherein the resilient member has oppositely disposed first and second ends, the first end having the axial leg disposed thereon and the second end having the electrical connection disposed thereon.
6. The tension stabilizing device according to claim 1, wherein the waveguide wire fixing assembly comprises a fixing sleeve, a waveguide wire fixing seat and a waveguide wire insulating seat, the waveguide wire fixing seat is arranged in the waveguide wire insulating seat, the fixing sleeve is sleeved on a contact part of the axial pin and the waveguide wire, and the fixing sleeve penetrates through the waveguide wire fixing seat and the waveguide wire insulating seat.
7. The tension stabilizing device according to claim 6, wherein the wire fixing assembly further comprises a pushing member, the wire fixing base is provided with a mounting hole matched with the pushing member, the wire insulating base is provided with a through hole for the pushing member to pass through, and the mounting hole is aligned with the through hole.
8. The tension stabilizing device of claim 1, further comprising a protective shell over the carrier.
9. The tension stabilizing device according to claim 8, further comprising a temperature measuring assembly mounted on the carrier, wherein the temperature measuring assembly comprises a wire collecting terminal, a plurality of temperature sensors and a plurality of cables, one end of each cable is connected with a temperature sensor, the opposite end is connected with the wire collecting terminal, and the temperature sensors are arranged outside and inside the protective shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811137150.1A CN108955816B (en) | 2018-09-28 | 2018-09-28 | Tension stabilizing device for probe waveguide wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811137150.1A CN108955816B (en) | 2018-09-28 | 2018-09-28 | Tension stabilizing device for probe waveguide wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108955816A CN108955816A (en) | 2018-12-07 |
| CN108955816B true CN108955816B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811137150.1A Active CN108955816B (en) | 2018-09-28 | 2018-09-28 | Tension stabilizing device for probe waveguide wire |
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| Country | Link |
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| CN (1) | CN108955816B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589403A (en) * | 2012-01-12 | 2012-07-18 | 上海交通大学 | Magnetostriction displacement sensor with compensation function |
| CN203011335U (en) * | 2012-12-19 | 2013-06-19 | 上海雷尼威尔技术有限公司 | Displacement sensor capable of reducing magnetic-field interference |
| CN103486958A (en) * | 2013-09-30 | 2014-01-01 | 湖南宇航科技有限公司 | Magnetostrictive displacement sensor and tensioning mounting method of waveguide wire thereof |
| CN203758580U (en) * | 2014-05-07 | 2014-08-06 | 优必得石油设备(苏州)有限公司 | Liquid level instrument probing bar with pressure-keeping mechanism |
| CN205015045U (en) * | 2015-10-19 | 2016-02-03 | 北京空港北光仪表有限公司 | Magnetic induced shrinkage or elongation waveguide silk tensioning mechanism |
| CN206161110U (en) * | 2016-10-25 | 2017-05-10 | 郑州开物通电子科技有限公司 | Waveguide wire fixing device is taken into account to magnetic induced shrinkage or elongation liquid level |
| CN206944918U (en) * | 2017-04-07 | 2018-01-30 | 江门市德立机电设备有限公司 | A kind of contactless mangneto telescopic displacement sensor |
| CN108139467A (en) * | 2015-09-11 | 2018-06-08 | 霍尼韦尔国际公司 | The device and method for detecting the fluent material of the end of the waveguide in guided wave radar system |
| CN208818292U (en) * | 2018-09-28 | 2019-05-03 | 优必得石油设备(苏州)有限公司 | A kind of pulling force stabilising arrangement on probe waveguide filament |
-
2018
- 2018-09-28 CN CN201811137150.1A patent/CN108955816B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589403A (en) * | 2012-01-12 | 2012-07-18 | 上海交通大学 | Magnetostriction displacement sensor with compensation function |
| CN203011335U (en) * | 2012-12-19 | 2013-06-19 | 上海雷尼威尔技术有限公司 | Displacement sensor capable of reducing magnetic-field interference |
| CN103486958A (en) * | 2013-09-30 | 2014-01-01 | 湖南宇航科技有限公司 | Magnetostrictive displacement sensor and tensioning mounting method of waveguide wire thereof |
| CN203758580U (en) * | 2014-05-07 | 2014-08-06 | 优必得石油设备(苏州)有限公司 | Liquid level instrument probing bar with pressure-keeping mechanism |
| CN108139467A (en) * | 2015-09-11 | 2018-06-08 | 霍尼韦尔国际公司 | The device and method for detecting the fluent material of the end of the waveguide in guided wave radar system |
| CN205015045U (en) * | 2015-10-19 | 2016-02-03 | 北京空港北光仪表有限公司 | Magnetic induced shrinkage or elongation waveguide silk tensioning mechanism |
| CN206161110U (en) * | 2016-10-25 | 2017-05-10 | 郑州开物通电子科技有限公司 | Waveguide wire fixing device is taken into account to magnetic induced shrinkage or elongation liquid level |
| CN206944918U (en) * | 2017-04-07 | 2018-01-30 | 江门市德立机电设备有限公司 | A kind of contactless mangneto telescopic displacement sensor |
| CN208818292U (en) * | 2018-09-28 | 2019-05-03 | 优必得石油设备(苏州)有限公司 | A kind of pulling force stabilising arrangement on probe waveguide filament |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108955816A (en) | 2018-12-07 |
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