CN2938043Y - Non-coaxial electric vortex detection sensor - Google Patents
Non-coaxial electric vortex detection sensor Download PDFInfo
- Publication number
- CN2938043Y CN2938043Y CN 200620098514 CN200620098514U CN2938043Y CN 2938043 Y CN2938043 Y CN 2938043Y CN 200620098514 CN200620098514 CN 200620098514 CN 200620098514 U CN200620098514 U CN 200620098514U CN 2938043 Y CN2938043 Y CN 2938043Y
- Authority
- CN
- China
- Prior art keywords
- fixed support
- coil
- skeleton
- fixing bracket
- secondary coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 title abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 9
- 239000004065 semiconductor Substances 0.000 abstract description 6
- 238000009423 ventilation Methods 0.000 abstract 3
- 239000007788 liquid Substances 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Landscapes
- Continuous Casting (AREA)
Abstract
The utility model discloses a non coaxial type detection sensor for detecting the electric eddy current, comprising a coil, a skeleton, a semiconductor element for measuring the temperature, a signal cable, a wiring seat, an air duct, a wind inletting joint and a protective case. A primary side coil-skeleton is separated with a secondary coil-skeleton. A primary side coil is winded on the primary side coil-skeleton. A secondary coil is winded on the secondary coil-skeleton. The two coil-skeletons are arranged in the upper and in the lower of different axles and are respectively arranged on the eccentric side of an upper fixing bracket and a lower fixing bracket, each with an eccentric empty cavity. The upper fixing bracket is put on the lower fixing bracket. The lower end face of the upper fixing bracket is provided with a truncated cone; and the upper end face of the lower fixing bracket is provided with a ring. The truncated cone is matched with the ring, which makes the upper fixing bracket and the lower fixing bracket can rotate relatively. The semiconductor element for measuring the temperature is pre-buried inside the lower fixing bracket. The fixing brackets are provided with ventilation holes that can go into the primary side coil and the secondary coil. The lower part of the lower fixing bracket is provided with a ventilation hole. A clearance exists between the protective case and the upper and lower fixing brackets; and the upper cover of the protective case is provided with the ventilation hole.
Description
Technical field
The utility model relates to a kind of non-coaxial electric transverse currents detecting sensor, is used for the measurement of conticaster crystallizer liquid steel level, especially measured conticaster crystallizer liquid steel level is detected very accurate, the stable liquid level gauging sensor of data demand.
Background technology
At present, China's employed sensor in the conticaster crystallizer liquid steel level is measured has two kinds, and a kind of is embedded type sensor, and advantage is without support, does not influence the casting machine nozzle quick-change, but complex structure costs an arm and a leg, and equipment is import, the installing/dismounting difficulty.In case sensor fault will cause the conticaster liquid level can not control automatically in a long time, seriously influences the quality of slab.The existence of these problems is to the quality of further raising slab, and improving the production technology level has very big obstruction.
Another kind is the posture current vortex sensor, all adopts coaxial-type current vortex detection mode at present.In this metering system, the output signal of probe is the differential output of secondary coil, there are two deficiencies in this metering system: the one, and the symmetry of sensor secondary coil must be very accurate, otherwise will cause under the secondary coil normality output non-vanishing, the interchangeability of sensor is bad, and the process for machining to coil rack proposes high requirement simultaneously; The 2nd, sensor output signal is very little, because conticaster production scene undesired signal is very big, this shielding to signal proposes high requirement, the significantly rising that thereupon brings cost.Owing to the existence of above defective, seriously influence the accuracy and the stability of conticaster liquid surface measuring device.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of output signal big, far measuring distance, the exchange performance is good, it is fast to return to normal production, the non-coaxial electric transverse currents detecting sensor of the novel conticaster crystallizer liquid level gauging that high-performance of being convenient to install and stability are good.
The technical solution of the utility model: non-coaxial electric transverse currents detecting sensor of the present utility model comprises coil, skeleton, semiconductor temperature element, signal cable and junction block, airduct, air intake joint, protective cover; primary coil skeleton and secondary coil skeleton are separately; primary coil is on the primary coil skeleton; secondary coil is around the secondary coil skeleton, and two upper and lower disalignments of coil rack are arranged.
Described non-coaxial electric transverse currents detecting sensor, two coil racks place the upper and lower support bracket fastened eccentric side of eccentric cavity respectively, last fixed support is placed on down on the fixed support, there is round platform last fixed support lower surface, there is annulus following fixed support upper surface, round platform and annulus coupling make between the upper and lower fixed support and can rotate relatively.
Described non-coaxial electric transverse currents detecting sensor, the secondary coil skeleton places the eccentric side of support bracket fastened eccentric cavity, and last fixed support is placed on down on the fixed support, and the semiconductor temperature element is embedded in down fixed support inside.
Described non-coaxial electric transverse currents detecting sensor has the air vent that enters primary coil, secondary coil on the last fixed support, air vent is arranged at following fixed support bottom, gapped between protective cover and the upper and lower fixed support, on covered air vent.
Advantage of the present utility model: in the non-coaxial electric transverse currents detecting sensor, the secondary coil magnetic flux change is subjected to the combined action of the magnetic flux and the liquid level eddy current magnetic flux of primary winding, output signal is big, stronger antijamming capability is arranged, requirements such as shielding to the production scene greatly reduce, can accurately reflect the variation of liquid steel level, the accuracy that guarantees the conticaster liquid planar survey is significant.
The non-coaxial electric transverse currents detecting sensor utilizes the eddy current mutual inductance effect between hot-wire coil and the metallic object to carry out distance detecting.By adopting novel power amplification element to provide the high-frequency high-power signal, form separated exciting concussion output to primary coil.Non-coaxial secondary coil is sensed the pumping signal of primary coil and the current vortex signal that liquid steel level produces, through preposition amplification converting unit, circuit such as rectification/temperature gain control module, power supply unit, voltage, linearization process, provide a kind of measuring distance big, the exchange performance is strong, 4～20mADC direct current standard signal output that stability is high.
Description of drawings
Fig. 1 is the utility model non-coaxial electric transverse currents detecting sensor structural representation;
Fig. 2 is the utility model protective cover inner sensor detail of construction.
Fig. 3 is the A-A view of Fig. 1, Fig. 2.
Embodiment
As Fig. 1, Fig. 2, Fig. 3: non-coaxial electric transverse currents detecting sensor of the present utility model mainly comprise secondary coil skeleton 1, semiconductor temperature element 2, signal cable 3, primary coil skeleton 4, down fixed support 5, go up fixed support 6, preceding connection support 7, elbow connecting hole 8, airduct 9, air intake joint 10, cable connection seat 11, Connection Block 12, trip bolt 13, air vent 14, attachment screw 15, clench screw 16, protective cover 17 forms.
Primary coil skeleton and secondary coil skeleton separate, and primary coil is on the primary coil skeleton, and secondary coil is around the secondary coil skeleton, and the upper and lower disalignment of primary coil skeleton and secondary coil skeleton is arranged.If primary coil skeleton and secondary coil skeleton upper-lower position are put upside down, its effect is similar.
Last fixed support 6 has eccentric cavity 6.2, is used to hold secondary coil skeleton 1, and secondary coil skeleton 1 places the eccentric side of the eccentric cavity 6.2 of fixed support 6, the 6.3rd, the locating slot of last fixed support 6.Following fixed support 5 has similar eccentric cavity 5.2, holds primary coil 4,5.3rd, the locating slot of following fixed support 5.Last fixed support 6 is placed on down on the fixed support 5, and there is round platform 6.1 last fixed support 6 lower surfaces; There is annulus 5.1 following fixed support 5 upper surfaces; Round platform 6.1 and annulus 5.1 couplings make between the upper and lower fixed support and can rotate relatively.Semiconductor temperature element 2 has been embedded in down fixed support 5 inside.When upper and lower fixed support closes up, by round platform 6.1, annulus 5.1 location that match each other.By rotating fixed support 5 down, can change the distance between axles (two coils overlap area and change) between primary coil and the secondary coil, reach the purpose of sensor zero point when adjusting static state.After zero point, adjustment finished, upper and lower fixed support was fixing by clenching screw 16.The preceding support 7 that connects is fixed by trip bolt 13 with last fixed support.Protective cover 17 is used to protect sensor to avoid the direct hyperthermia radiation of molten steel, by attachment screw 15 and loam cake 7.1 partial fixings that preceding are connected support 7.Wiring and logical cooling air that airduct 9, air intake joint 10, cable connection seat 11, Connection Block 12 are used for coil cool off sensor, by elbow connecting hole 8 with preceding be connected support 7 and link to each other.Coil cable communicates with primary coil, secondary coil through cable connection seat 11, Connection Block 12, airduct 9, preceding connection support 7, the air vent 20 that passes on the fixed support.The air vent 20 that cooling air passes through on air intake joint 10, airduct 9, preceding connection support 7, the last fixed support enters sensor site; primary coil 1.1 and secondary coil 4.1 are cooled off the air vent 14 discharge sensors on the gap 18 between the air hole 19, protective cover 17 that passes down the fixed support bottom and upper and lower fixed support, the preceding loam cake 7.1 that is connected support 7.
Core of the present utility model is that the upper and lower disalignment of primary coil and secondary coil is arranged, therefore, the upper and lower disalignment of every primary coil and secondary coil arranges no matter how its concrete structure changes, and all belongs to protection domain of the present utility model.
Claims (4)
1. non-coaxial electric transverse currents detecting sensor; comprise coil, skeleton, semiconductor temperature element, signal cable and junction block, airduct, air intake joint, protective cover; it is characterized in that: primary coil skeleton and secondary coil skeleton are separately; primary coil is on the primary coil skeleton; secondary coil is around the secondary coil skeleton, and two upper and lower disalignments of coil rack are arranged.
2. non-coaxial electric transverse currents detecting sensor according to claim 1, it is characterized in that: two coil racks place the upper and lower support bracket fastened eccentric side of eccentric cavity respectively, last fixed support is placed on down on the fixed support, there is round platform last fixed support lower surface, there is annulus following fixed support upper surface, round platform and annulus coupling make between the upper and lower fixed support and can rotate relatively.
3. non-coaxial electric transverse currents detecting sensor according to claim 1 and 2, it is characterized in that: the secondary coil skeleton places the eccentric side of support bracket fastened eccentric cavity, last fixed support is placed on down on the fixed support, and the semiconductor temperature element is embedded in down fixed support inside.
4. non-coaxial electric transverse currents detecting sensor according to claim 1 and 2; it is characterized in that: going up on the fixed support has the air vent that enters primary coil, secondary coil; air vent is arranged at following fixed support bottom, gapped between protective cover and the upper and lower fixed support, on covered air vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098514 CN2938043Y (en) | 2006-08-17 | 2006-08-17 | Non-coaxial electric vortex detection sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098514 CN2938043Y (en) | 2006-08-17 | 2006-08-17 | Non-coaxial electric vortex detection sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2938043Y true CN2938043Y (en) | 2007-08-22 |
Family
ID=38362072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620098514 Expired - Fee Related CN2938043Y (en) | 2006-08-17 | 2006-08-17 | Non-coaxial electric vortex detection sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2938043Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023957A (en) * | 2019-12-20 | 2020-04-17 | 北京航空航天大学 | A high temperature resistant radial displacement sensor device |
| CN112313480A (en) * | 2018-06-14 | 2021-02-02 | 伊顿智能动力有限公司 | Differential with armature position detection |
| CN117269563A (en) * | 2023-11-22 | 2023-12-22 | 山东联创高科自动化有限公司 | Fan frequency converter detection device |
-
2006
- 2006-08-17 CN CN 200620098514 patent/CN2938043Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112313480A (en) * | 2018-06-14 | 2021-02-02 | 伊顿智能动力有限公司 | Differential with armature position detection |
| CN111023957A (en) * | 2019-12-20 | 2020-04-17 | 北京航空航天大学 | A high temperature resistant radial displacement sensor device |
| CN111023957B (en) * | 2019-12-20 | 2021-05-28 | 北京航空航天大学 | A high temperature resistant radial displacement sensor device |
| CN117269563A (en) * | 2023-11-22 | 2023-12-22 | 山东联创高科自动化有限公司 | Fan frequency converter detection device |
| CN117269563B (en) * | 2023-11-22 | 2024-01-23 | 山东联创高科自动化有限公司 | Fan frequency converter detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104569888B (en) | A kind of utilization micro-strip collimation method calibrates the system and method for near field probes modifying factor | |
| KR101505754B1 (en) | System for monitoring electrical power usage of a structure and method of same | |
| CN209326948U (en) | A kind of breaker mechanic property on-line monitoring and fault location identification device | |
| US20130049750A1 (en) | Giant Magnetoresistance Current Sensor | |
| CN101922924A (en) | A transmission line information detection system, method and GPS mobile station device | |
| CN204831595U (en) | A Digital Display SMD Temperature Transmitter | |
| CN2938043Y (en) | Non-coaxial electric vortex detection sensor | |
| CN108007376A (en) | A kind of large scale structure multiple spot deformation synchronous monitoring device | |
| CN111693751A (en) | Copper bar current sensor | |
| CN201298052Y (en) | Current sensor | |
| CN203286960U (en) | Tool for measuring shallow seam allowance inner diameter of wind generating set | |
| CN116256683A (en) | A broadband characteristic testing device for magnetic sensitive sensor | |
| CN222636293U (en) | Quick equipment of measuring in soil | |
| CN111077410B (en) | Power distribution network fault locating instrument and detection method | |
| CN209327498U (en) | Fault traveling wave signal coupling sensor for online fault location device | |
| CN113203974A (en) | Oil level measuring method of current transformer | |
| CN110726869B (en) | Wireless networking type current non-contact measuring device and method for magnetic sensing unit | |
| CN103592491B (en) | Current isolation mutual inductor | |
| CN203572862U (en) | A current isolation transformer | |
| CN212321760U (en) | A distribution network fault locator | |
| CN103900732A (en) | Electric reactor fiber grating temperature measuring device | |
| CN115219959A (en) | Detection device for short-circuit magnetic field between turns of dry-type air-core reactor based on magnetoresistance effect | |
| CN201637786U (en) | Detecting device for atmosphere electric field | |
| CN208012762U (en) | A kind of online infrared temperature measurement apparatus mounting structure | |
| CN223678640U (en) | High temperature monitoring and early warning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070822 Termination date: 20130817 |