CN202522291U - Sealing structure of radar wave object liquid level sensor - Google Patents
Sealing structure of radar wave object liquid level sensor Download PDFInfo
- Publication number
- CN202522291U CN202522291U CN2011205545923U CN201120554592U CN202522291U CN 202522291 U CN202522291 U CN 202522291U CN 2011205545923 U CN2011205545923 U CN 2011205545923U CN 201120554592 U CN201120554592 U CN 201120554592U CN 202522291 U CN202522291 U CN 202522291U
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- hermetically
- sealed construction
- waveguide pipe
- liquid level
- level sensor
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Abstract
The utility model discloses a sealing structure of a radar wave object liquid level sensor. The sealing structure comprises a radio frequency and sensing circuit connection box, an upper box cover which is relatively combined with the radio frequency and sensing circuit connection box, a wave guide cavity diverticulum which is connected to the bottom of the radio frequency and sensing circuit connection box, a radar mounting and fixing structure which is relatively combined with the wave guide cavity diverticulum, and an antenna which is combined with the radar mounting and fixing structure, wherein an open window is formed on the top of the upper box cover; a transparent plate is arranged on the inner side of the open window in the upper box cover and is fixed through a fixing ring; and a sealing structure is respectively arranged between the transparent plate and the upper box cover, at the junction of the radio frequency and sensing circuit connection box and the upper box cover, and between the radar mounting and fixing structure and the antenna, so that an electric structure in the radio frequency and sensing circuit connection box is completely isolated with the outside, the radar wave object liquid level sensor has an ideal sealing effect, and the sealing structure of the radar wave object liquid level sensor is suitable for high-temperature, high-pressure, dusty, dew-surrounding or strong-cid and strong-alkali severe environments.
Description
Technical field
The utility model relates to a kind of radar wave thing liquid level sensor, particularly a kind of radar wave thing liquid level sensor with desirable seal effect.
Background technology
So-called radar wave thing liquid level sensor; Be industrial, chemical industry with, food with and agricultural grain with stock chest in the usefulness of crop liquid level sensing; And radar wave thing liquid level sensor mainly is the sensing apparatus that is formed by transmission circuit and combination of antennas, and its electrical construction is to be accommodated in a radio frequency and the sensing circuit terminal box, but radar wave thing liquid level sensor place place all belong to high temperature, high pressure, dust, dew around or have rugged surroundings of soda acid; For the transmission circuit of avoiding radio frequency and sensing circuit terminal box inside is disturbed by external context; And influence its opering characteristic of electric apparatus, measurement degree of accuracy and sensing circuit life-span etc., must have desirable sealing effectiveness, if not; Will cause improper influence to transmission circuit and sensing component; Effectively receive the reflection signal of determinand except causing sensor to fail, disturbed by the signal of extrinsic factor and influence, and then can't obtain best signal quality.
The utility model content
In order to overcome the defective of prior art; The utility model provides a kind of hermetically-sealed construction of radar wave thing liquid level sensor; Its fundamental purpose is providing a kind of structural design of module, makes to transmit from signal emission awl, antenna, lens antenna; Can structurizedly design, and in structural design the industrial radar wave thing liquid level sensor of enhanced leaktightness effect.This modular structural design; Can be with waveguide pipe cavity and signal emission awl; Antenna, lens antenna are accomplished the optimization coupling of impedance; And the obstruction seals of formation waveguide pipe cavity and external environment, guarantee that effectively materials such as external dust and dew can't get into the waveguide pipe cavity, cause the deterioration of radar installations performance.
The utility model is applied in industrial radar thing liquid level measurement system and antenna structure; Said antenna structure comprises waveguide pipe cavity, signal emission awl, antenna and lens antenna and combines; Medium is an air in the waveguide pipe; This is designed to resonance mode TE, TM ripple easy determination, shortens design time, is different from present common to fill up medium in waveguide pipe; For the high-frequency signals with circuit effectively transmits in air, signal emission wimble structure need reach impedance matching with control antenna field pattern and directive property.
Characteristic of the present invention has two, and characteristic one is with waveguide pipe cavity and signal emission awl, and antenna, lens antenna accomplish that the optimization of impedance is mated and the effectively isolated external environment that prevents is invaded; Transmission circuit and antenna can effectively be received outside the reflection signal of determinand, not disturbed by the signal of extrinsic factor and influence.The cavity that the concrete characteristic two of the present invention is a waveguide pipe is for utilizing air dielectric as conductive medium; And have multi-sealing structure opposing etchant gas and invade; This design utilizes the high thermal insulation of air can effectively completely cut off processing procedure end (antenna end) heat and transmits, and makes to can be applicable to high temperature and tool corrosion steam ambient.For example industrial, chemical industry with, food with and agricultural grain with storing groove and high temperature, high pressure, dust, dew around or the environment to be measured of strong acid-base.
Make the hermetically-sealed construction of aforementioned radar wave thing liquid level sensor comprise for reaching the major technique means system that aforementioned purpose takes:
One radio frequency and sensing circuit terminal box are to be hollow form, supply a ccontaining radio circuit; With at least one sensing circuit; This radio frequency and sensing circuit terminal box have a upper shed and a bottom, and this upper shed place is formed with junction surface on, are arranged with one first hermetically-sealed construction on this on the junction surface; Its bottom is provided with a waveguide pipe cavity diverticulum;
One upper box cover is to be hollow form, has a under shed and a top, and its lower opening is formed with junction surface, and confession combines with the last junction surface of radio frequency with upper shed place of sensing circuit terminal box relatively; Moreover the top of upper box cover is formed with one and passes through empty windowing, and the inboard of windowing, upper box cover inherence is provided with a transparent panel again, and fixes with a set collar, is provided with one second hermetically-sealed construction between this transparent panel periphery and upper box cover top inner wall;
One radar mount fixing structure is generally the lithographic plate flange; It is incorporated on the waveguide pipe cavity diverticulum of radio frequency and sensing circuit terminal box bottom relatively; These radar mount fixing structure central authorities are formed with an eyelet, and the peritreme place of this eyelet is provided with one the 3rd hermetically-sealed construction;
One antenna, this antenna one end links a waveguide pipe cavity, and this waveguide pipe cavity system is incorporated in the eyelet of radar mount fixing structure, and waveguide pipe chamber outer wall system closely contacts with the 3rd hermetically-sealed construction at eyelet peritreme place; This antenna can advance a binding and respect antenna change beam directional thoroughly;
From the above; The radar wave thing liquid level sensor of the utility model is made up of a plurality of assembly modules, tool junction between composition, and each junction all provides Seal Design; Make this junction present certain sealing state; By this inner sensing circuit and the external world are isolated fully, thus applicable in the thing liquid level sensitive context of environmental baseline sternness, and reach conveniently making up of difference in functionality.
Description of drawings
Fig. 1 is the stereographic map of the utility model first preferred embodiment;
Fig. 2 is the planimetric map of the utility model first preferred embodiment;
Fig. 3 A is a partial sectional view of the utility model first preferred embodiment;
Fig. 3 B is the another partial sectional view of the utility model first preferred embodiment;
Fig. 4 is the stereographic map of the utility model second preferred embodiment;
Fig. 5 is the partial sectional view of the utility model second preferred embodiment.
Embodiment
First preferred embodiment about the utility model; At first see also Fig. 1, shown in Figure 2, mainly form by a radio circuit, at least one group of sensing circuit, a waveguide pipe cavity, a radio frequency and sensing circuit terminal box 10, a upper box cover 20, a radar mount fixing structure 30 and 40 on an antenna; Said radio circuit is used to launch high-frequency signal; Said sensing circuit is in order to accept the high-frequency signal of reflection; Said waveguide pipe cavity is to be resonance waveguide pipe cavity, and the ELECTROMAGNETIC FIELD signal can see through this waveguide pipe transmission; Said sensing circuit module can comprise a display unit, and said display unit is LED, LCM or one of them person of LCD module; Wherein:
This radio frequency and sensing circuit terminal box 10 are to be hollow form; Its inside can supply a ccontaining sensing circuit (not shown), radio circuit and have the space that holds the waveguide pipe cavity, please cooperate and consult shown in Fig. 3 A, and this radio frequency and sensing circuit terminal box 10 have a upper shed and a bottom; This upper shed place be formed with one in the form of a ring and external diameter less than the last junction surface 11 of upper shed bore; In present embodiment, be formed with screw thread on the junction surface 11 on this, be provided with the mode of being spirally connected and combine with upper box cover 20; Going up again and being arranged with one first hermetically-sealed construction, 14, the first hermetically-sealed constructions 14 on the junction surface 11 is to be made up of O type ring (O ring); Be arranged with two line outlets 15 and a chock plug 16 on radio frequency and sensing circuit terminal box 10 outer walls again; Moreover; The waist 12 that the bottom central of radio frequency and sensing circuit terminal box 10 contracts in extending below an external diameter, this waist 12 is to be hollow form, and with radio frequency and sensing circuit terminal box 10 internal communication; Waist 12 bottoms are provided with the waveguide pipe cavity diverticulum 13 of a hollow again; Waveguide pipe cavity diverticulum 13 inside still with waist 12 and radio frequency and sensing circuit terminal box 10 internal communication, in present embodiment, the bottom along continuous straight runs of this waveguide pipe cavity diverticulum 13 extends to form the joint portion 130 of a ring-type; Be formed with more than one combined hole on the joint portion 130, supply to combine with radar mount fixing structure 30.
This upper box cover 20 is to be hollow form; Have a under shed and a top; Its lower opening is formed with the following junction surface 21 of a ring-type, and this time junction surface 21 inwalls are formed with screw thread, and the last junction surface 11 of confession and radio frequency and 10 upper sheds place of sensing circuit terminal box screws togather relatively; And junction surface 21 is engaged closely with 11 at last junction surface, thereby guarantee the fluid-tight engagement of 10 of upper box cover 20 and radio frequency and sensing circuit terminal boxes through first sheathed on the last junction surface 11 hermetically-sealed construction 14; Moreover; The top of upper box cover 20 is formed with one and passes through and empty to window 22; These 22 circle footpaths of windowing are less than upper box cover 20 topside areas, and upper box cover 20 top inner wall form an annular groove 23 again, are provided with one second hermetically-sealed construction 24 in the annular groove 23; The depth of section of second hermetically-sealed construction 24 is greater than annular groove 23 degree of depth, so second hermetically-sealed construction, 24 end faces will be exposed to beyond the annular groove 23; 22 inboards of windowing, upper box cover 20 inherences are provided with a transparent panel 25 again; And fix with a set collar 26; This transparent panel 23 circle footpaths window 22 and annular groove 23 greater than aforementioned; And transparent panel 23 edge surfaces also contact with second hermetically-sealed construction, 24 end faces that expose annular groove 23, utilize the upwards top of set collar 26 to pull, and can guarantee transparent panel 23 and 22 the sealing effectiveness of windowing.
Please cooperate and consult shown in Fig. 3 B; This radar mount fixing structure 30 is to be tabular, and its central authorities are formed with an eyelet 31, and eyelet 31 peritremes are formed with a groove 310; Be provided with one the 3rd hermetically-sealed construction 32, the three hermetically-sealed constructions, 32 inboard ring walls in the groove 310 and protrude in beyond the peritreme of eyelet 31; In present embodiment; These radar mount fixing structure 30 peripheries are formed with a plurality of fixed orifice 33; Confession utilizes screw to combine with combined hole on waveguide pipe cavity diverticulum 13 joint portions 130, combines closely for making radar mount fixing structure 30 and 13 of waveguide pipe cavity diverticulums, and radar mount fixing structure 30 surfaces are formed with an outer groove 34 in eyelet 31 peripheries; Outer groove 34 external diameters are less than the external diameter of waveguide pipe cavity diverticulum 13 joint portions 130; The end face that is provided with one the 4th hermetically-sealed construction, 35, the four hermetically-sealed constructions 35 in this outer groove 34 protrudes in beyond the outer groove 34, when the joint portion 130 of radar mount fixing structure 30 with waveguide pipe cavity diverticulum 13 combines; The 4th hermetically-sealed construction 35 end faces will contact with 130 bottom surfaces, joint portion of waveguide pipe cavity diverticulum 13, to constitute bonding state closely.
In the present embodiment, this antenna 40 is a cone antenna, and in order to guiding width of cloth radio wave, and decision day wire spoke is penetrated the wave beam of field pattern, increase integrated antenna directive property; It also can link a lens antenna, for fixing to the output terminal of this cone antenna, penetrates narrow beam in order to reach a day wire spoke, promotes integrated antenna directive property., these antenna 40 1 ends are provided with a waveguide pipe cavity 41, and said waveguide pipe cavity is a side direction signal feed-in joint, and is conductive medium with the air, in order to the radio circuit signal is sent to the antenna emission; It can further have a cylindrical dielectric waveguide pipe, as impedance transformation; The waveguide pipe cavity has medium emission cone 42, and can make a day wire spoke penetrate field pattern is that spherical wave converts plane wave into, and reaches impedance transformation simultaneously, and the cone of medium emission cone structure is selected from one of them person of high molecular polymer, pottery and glass; This waveguide pipe cavity 41 is to be incorporated in the eyelet 31 of radar mount fixing structure 30 again; And waveguide pipe cavity 41 outer walls system closely contacts with the 3rd hermetically-sealed construction 32 that protrudes in eyelet 31 peritreme places, uses the sealing state of guaranteeing after waveguide pipe cavity 41 and radar mount fixing structure 30 combine.
Seeing also Fig. 4, shown in Figure 5 again, is second preferred embodiment of the utility model, mainly still is made up of a radio frequency and sensing circuit terminal box 10, a upper box cover 20, a radar mount fixing structure (flange) 50 and 60 on an antenna; Wherein, The structure of radio frequency and sensing circuit terminal box 10, upper box cover 20 and the structure of first preferred embodiment are roughly the same; Do not exist together and only do not form the joint portion in the waveguide pipe cavity diverticulum 13 ' bottom of radio frequency and sensing circuit terminal box 10 bottoms; And radar mount fixing structure 50 cooperates this waveguide pipe cavity diverticulum 13 ' also slightly to adjust textural, and the antenna 60 in the present embodiment is a bar antenna in addition.
Of preceding taking off, these radar mount fixing structure 50 central authorities are formed with eyelet 51, and eyelet 51 peritremes are formed with a groove 510, are provided with one the 3rd hermetically-sealed construction 52, the three hermetically-sealed constructions, 52 inboard ring walls in the groove 510 and protrude in beyond the peritreme of eyelet 51; Radar mount fixing structure 50 surfaces further extend upward and form a sleeve 53 again, and the external diameter coupling of these sleeve 53 internal diameters and waveguide pipe cavity diverticulum 13 ' is with closely socket each other.
About aforementioned first to fourth hermetically-sealed construction; All can be made up of O type ring, the material of these O type rings is selected from high molecular polymer commonly used, can be nitrile rubber or fluororubber; Present embodiment is merely for example, and it can also be high molecular polymers such as perfluor ether rubber during practical implementation.The section configuration of O type ring can also be star except that circle again, and present embodiment is merely for example, can also be structures such as square, V-arrangement during practical implementation.
From the above; Establish main electrical construction (establishing frequency circuit and sensing circuit etc.) in the radio frequency of radar wave thing liquid level sensor and the sensing circuit terminal box; And waveguide pipe cavity diverticulum also is combined with antenna through the radar mount fixing structure; Therefore its inside must have good sealing effectiveness, can positively isolate with the external world, and the utility model all provides good seal structure in the junction of each assembly; Extraneous aqueous vapor, dust all can't be got in the sensor, thus applicable high temperature, high pressure, dust, dew around or the severe environment of strong acid-base in.
The utility model preferred embodiment just is used for helping to set forth the utility model.Preferred embodiment does not have all details of detailed descriptionthe, does not limit this utility model yet and is merely described embodiment.Obviously, according to the content of this instructions, can do a lot of modifications and variation.These embodiment are chosen and specifically described to this instructions, is principle and practical application in order to explain the utility model better, thereby person skilled can be utilized the utility model well under making.The utility model only receives the restriction of claims and four corner and equivalent.More than the disclosed several specific embodiments that are merely the application, but the application is not limited thereto, any those skilled in the art can think variation, all should drop in the application's the protection domain.
Claims (16)
1. the hermetically-sealed construction of a radar wave thing liquid level sensor comprises:
One radio circuit is in order to the emission high-frequency signal;
At least one group of sensing circuit; In order to receive the high-frequency signal of reflection;
One waveguide pipe cavity; System can see through this waveguide pipe transmission for resonance waveguide pipe cavity, ELECTROMAGNETIC FIELD signal;
One radio frequency and sensing circuit terminal box; It is characterized in that, being hollow form inside and can holding above-mentioned radio circuit of said radio frequency and sensing circuit terminal box, sensing circuit, and have the space that holds the waveguide pipe cavity; Above-mentioned this radio frequency and sensing circuit terminal box have a upper shed and a bottom, and this upper shed place is formed with junction surface on, are arranged with one first hermetically-sealed construction on this on the junction surface; Its bottom is provided with a waveguide pipe cavity diverticulum;
One upper box cover is to be hollow form, has a under shed and a top, and its lower opening is formed with junction surface, and confession combines with the last junction surface of radio frequency with upper shed place of sensing circuit terminal box relatively; Moreover the top of upper box cover is formed with one and passes through empty windowing, and the inboard of windowing, upper box cover inherence is provided with a transparent panel again, and fixes with a set collar, is provided with one second hermetically-sealed construction between this transparent panel periphery and upper box cover top inner wall;
One radar mount fixing structure is to be tabular, and it is incorporated on the waveguide pipe cavity diverticulum of radio frequency and sensing circuit terminal box bottom relatively; These radar mount fixing structure central authorities are formed with an eyelet, and the peritreme place of this eyelet is provided with one the 3rd hermetically-sealed construction;
One antenna, this antenna one end is provided with a waveguide pipe cavity, and this waveguide pipe cavity system is incorporated in the eyelet of radar mount fixing structure, and waveguide pipe chamber outer wall system closely contacts with the 3rd hermetically-sealed construction at eyelet peritreme place.
2. the hermetically-sealed construction of a kind of radar wave thing liquid level sensor as claimed in claim 1 is characterized in that, said waveguide pipe cavity is a side direction signal feed-in joint, and is conductive medium with the air, in order to the radio circuit signal is sent to the antenna emission; It can further have a cylindrical dielectric waveguide pipe, as impedance transformation.
3. the hermetically-sealed construction of a kind of radar wave thing liquid level sensor as claimed in claim 1 is characterized in that, said waveguide pipe cavity has medium emission cone, and can make a day wire spoke penetrate field pattern is that spherical wave converts plane wave into, and reaches impedance transformation simultaneously.
4. the hermetically-sealed construction of a kind of radar wave thing liquid level sensor as claimed in claim 1 is characterized in that, said antenna is a cone antenna, and in order to guiding width of cloth radio wave, and decision day wire spoke is penetrated the wave beam of field pattern, increase integrated antenna directive property; It also can link a lens antenna, for fixing to the output terminal of this cone antenna, penetrates narrow beam in order to reach a day wire spoke, promotes integrated antenna directive property.
5. the hermetically-sealed construction of a kind of radar wave thing liquid level sensor as claimed in claim 1 is characterized in that, the cone of said medium emission cone structure is selected from one of them person of high molecular polymer, pottery and glass.
6. the hermetically-sealed construction of a kind of radar wave thing liquid level sensor as claimed in claim 1; It is characterized in that; The circle footpath of windowing at this upper box cover top is less than the upper box cover topside area, and the upper box cover top inner wall forms an annular groove again, supplies to be provided with this second hermetically-sealed construction in the annular groove; The depth of section of second hermetically-sealed construction is greater than the annular groove degree of depth, and makes end face be exposed to beyond the annular groove; This transparent panel system is fixed with a set collar, windows and annular groove greater than aforementioned in this transparent panel circle footpath, and transparent panel edge surface and contact with the second hermetically-sealed construction end face that exposes annular groove.
7. the hermetically-sealed construction of a kind of radar wave thing liquid level sensor as claimed in claim 6; It is characterized in that; The eyelet peritreme of this radar mount fixing structure is formed with a groove, supplies to be provided with the 3rd hermetically-sealed construction, and the inboard ring wall of the 3rd hermetically-sealed construction also protrudes in beyond the peritreme of eyelet.
8. the hermetically-sealed construction of a kind of radar wave thing liquid level sensor as claimed in claim 7; It is characterized in that; The following junction surface inwall of this upper box cover is formed with screw thread, and the last junction surface of this radio frequency and sensing circuit terminal box also is formed with screw thread, supplies to screw togather relatively with the following junction surface of upper box cover.
9. the hermetically-sealed construction of a kind of radar wave thing liquid level sensor as claimed in claim 8; It is characterized in that; The waist that the bottom central of radio frequency and sensing circuit terminal box contracts in extending below an external diameter; This waist system is hollow form, and with radio frequency and sensing circuit terminal box internal communication, the waist bottom is provided with this waveguide pipe cavity diverticulum again.
10. like the hermetically-sealed construction of each described a kind of radar wave thing liquid level sensor in the claim 6 to 9; It is characterized in that; The bottom along continuous straight runs of this waveguide pipe cavity diverticulum extends to form the joint portion of a ring-type, is formed with more than one combined hole on the joint portion;
This radar mount fixing structure periphery is formed with a plurality of fixed orifices; Confession utilizes screw to combine with combined hole on the waveguide pipe cavity diverticulum joint portion; Radar mount fixing structure surface is formed with an outer groove in the eyelet periphery again, and the outer groove external diameter is provided with one the 4th hermetically-sealed construction less than the external diameter of waveguide pipe cavity diverticulum joint portion in this outer groove; The end face of the 4th hermetically-sealed construction protrudes in beyond the outer groove, supplies to contact with the bottom surface of waveguide pipe cavity diverticulum joint portion.
11. the hermetically-sealed construction of a kind of radar wave thing liquid level sensor as claimed in claim 10; It is characterized in that; This antenna is a horn-like antenna, and the one of which end is provided with a waveguide pipe cavity, is provided with signal emission awl in the waveguide pipe cavity; This waveguide pipe cavity system is incorporated in the eyelet of radar mount fixing structure again, and waveguide pipe chamber outer wall system closely contacts with the 3rd hermetically-sealed construction that protrudes in eyelet peritreme place.
12. the hermetically-sealed construction of a kind of radar wave thing liquid level sensor as claimed in claim 10; It is characterized in that; This antenna is a bar antenna; An one of which end and a waveguide pipe cavity link, and this waveguide pipe cavity system is incorporated in the eyelet of radar mount fixing structure again, and waveguide pipe chamber outer wall system closely contacts with the 3rd hermetically-sealed construction that protrudes in eyelet peritreme place.
13. the hermetically-sealed construction of a kind of radar wave thing liquid level sensor as claimed in claim 1; It is characterized in that; This radar mount fixing structure surface further extends upward and forms a sleeve, and the external diameter coupling of this sleeve diameter and waveguide pipe cavity diverticulum is with closely socket each other.
14. the hermetically-sealed construction of a kind of radar wave thing liquid level sensor as claimed in claim 1 is characterized in that, sealing structure system is made up of O type ring, and it is made up of high molecular polymer.
15. the hermetically-sealed construction of a kind of radar wave thing liquid level sensor as claimed in claim 14 is characterized in that, the section configuration of said O type ring comprises star, square, one of them person of V-arrangement.
16. the hermetically-sealed construction of a kind of radar wave thing liquid level sensor as claimed in claim 1 is characterized in that, above-mentioned sensing circuit module; Can comprise a display unit, said display unit is LED, LCM or one of them person of LCD module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205545923U CN202522291U (en) | 2011-12-27 | 2011-12-27 | Sealing structure of radar wave object liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205545923U CN202522291U (en) | 2011-12-27 | 2011-12-27 | Sealing structure of radar wave object liquid level sensor |
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| Publication Number | Publication Date |
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| CN202522291U true CN202522291U (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205545923U Expired - Lifetime CN202522291U (en) | 2011-12-27 | 2011-12-27 | Sealing structure of radar wave object liquid level sensor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104241807A (en) * | 2014-09-16 | 2014-12-24 | 张家港保税区灿勤科技有限公司 | Antenna suitable for normally functioning under high temperature condition |
| BE1021372B1 (en) * | 2014-07-18 | 2015-11-09 | Arranged Bvba | AUTOMATIC BREATHER |
| CN106052801A (en) * | 2016-05-31 | 2016-10-26 | 大庆市镁华仪仪表衡器有限公司 | Radar level meter |
| CN106463839A (en) * | 2014-03-28 | 2017-02-22 | 霍尼韦尔国际公司 | Foam filled dielectric rod antenna |
| CN107508049A (en) * | 2017-07-21 | 2017-12-22 | 京信通信系统（中国）有限公司 | A kind of water joint cap |
| CN107782405A (en) * | 2016-08-25 | 2018-03-09 | 姆萨西诺机器株式会社 | High-order liquid level alarm device |
| CN108132080A (en) * | 2018-02-02 | 2018-06-08 | 徐州江煤科技有限公司 | A kind of radar level transducer automatically controlled |
| CN108894769A (en) * | 2018-04-18 | 2018-11-27 | 中国石油天然气股份有限公司 | Integrated differential-pressure-type gas-liquid two-phase flow well head monitoring device |
| CN110617868A (en) * | 2019-09-11 | 2019-12-27 | 江苏菲尔德自动化仪表有限公司 | Lens antenna radar level meter |
| DE102021131499A1 (en) | 2021-11-30 | 2023-06-01 | Endress+Hauser SE+Co. KG | level gauge |
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2011
- 2011-12-27 CN CN2011205545923U patent/CN202522291U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106463839A (en) * | 2014-03-28 | 2017-02-22 | 霍尼韦尔国际公司 | Foam filled dielectric rod antenna |
| BE1021372B1 (en) * | 2014-07-18 | 2015-11-09 | Arranged Bvba | AUTOMATIC BREATHER |
| CN104241807A (en) * | 2014-09-16 | 2014-12-24 | 张家港保税区灿勤科技有限公司 | Antenna suitable for normally functioning under high temperature condition |
| CN104241807B (en) * | 2014-09-16 | 2017-06-23 | 张家港保税区灿勤科技有限公司 | A kind of antenna for being suitable to normal work under the high temperature conditions |
| CN106052801A (en) * | 2016-05-31 | 2016-10-26 | 大庆市镁华仪仪表衡器有限公司 | Radar level meter |
| CN107782405A (en) * | 2016-08-25 | 2018-03-09 | 姆萨西诺机器株式会社 | High-order liquid level alarm device |
| CN107782405B (en) * | 2016-08-25 | 2022-01-11 | 姆萨西诺机器株式会社 | High level liquid level alarm device |
| CN107508049A (en) * | 2017-07-21 | 2017-12-22 | 京信通信系统（中国）有限公司 | A kind of water joint cap |
| CN107508049B (en) * | 2017-07-21 | 2019-07-09 | 京信通信系统（中国）有限公司 | A kind of waterproof connector cap |
| CN108132080A (en) * | 2018-02-02 | 2018-06-08 | 徐州江煤科技有限公司 | A kind of radar level transducer automatically controlled |
| CN108894769A (en) * | 2018-04-18 | 2018-11-27 | 中国石油天然气股份有限公司 | Integrated differential-pressure-type gas-liquid two-phase flow well head monitoring device |
| CN110617868A (en) * | 2019-09-11 | 2019-12-27 | 江苏菲尔德自动化仪表有限公司 | Lens antenna radar level meter |
| DE102021131499A1 (en) | 2021-11-30 | 2023-06-01 | Endress+Hauser SE+Co. KG | level gauge |
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