CN201955128U - Magnetostriction liquid level meter - Google Patents
Magnetostriction liquid level meter Download PDFInfo
- Publication number
- CN201955128U CN201955128U CN2011200508839U CN201120050883U CN201955128U CN 201955128 U CN201955128 U CN 201955128U CN 2011200508839 U CN2011200508839 U CN 2011200508839U CN 201120050883 U CN201120050883 U CN 201120050883U CN 201955128 U CN201955128 U CN 201955128U
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- ring
- nylon ring
- outer tube
- nylon
- strain
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Abstract
The utility model discloses a magnetostriction liquid level meter, which comprises a cable, an electron cabin, an outer pipe, a return conducting wire, a waveguide wire, a floater and a damper, wherein the floater consists of a pipe body, a hollow sphere, an upper nylon ring, a middle nylon ring, a lower nylon ring, an upper magnetic ring and a lower magnetic ring, the hollow sphere is provided with a through hole and is hermetically sleeved outside of the pipe body, the upper nylon ring, the upper magnetic ring, the middle nylon ring, the lower magnetic ring and the lower nylon ring are sequentially embedded on the inner wall of the pipe body from top to bottom, the upper nylon ring, the middle nylon ring, the lower nylon ring, the upper magnetic ring and the lower magnetic ring all contact with the outer wall of the outer pipe, and the outer pipe, the hollow sphere and the pipe body are all made of non-magnetic stainless steel. According to the above technical scheme, the magnetostriction liquid level meter can accurately measure difference between current pulse generating time and strain pulse receiving time, and accordingly, liquid level values can be accurately measured.
Description
Technical field
The utility model relates to a kind of magnetostriction liquidometer.
Background technology
Current magnetostriction liquidometer comprises the electronics storehouse, outer tube, return wire, waveguide filament, the float of embedded one magnet ring and damper, the top of outer tube is connected with the electronics storehouse, be provided with current pulser and strain-pulse testing circuit in the electronics storehouse, the middle part of outer tube is embedded in the float, be provided with damper in the bottom endoporus of outer tube, be provided with return wire and waveguide filament in the inner chamber of outer tube, the upper end of return wire connects the strain-pulse testing circuit, the upper end of waveguide filament connects current pulser, the lower end of return wire is connected with the lower end of waveguide filament, and is wrapped in the outside surface of damper.Current pulser in the electronics storehouse at first applies a current impulse on waveguide filament, a toroidal magnetic field is followed in current impulse simultaneously, propagates downwards along waveguide filament with the light velocity.Superpose when this magnetic field runs into the magnetic field of the magnet ring formation in the float, waveguide filament can produce short time set.Therefore produce a strain-pulse, this strain-pulse is propagated to the two ends of waveguide filament, when propagating into electronics storehouse one end, received by the strain-pulse testing circuit in the electronics storehouse, the mistiming of current impulse time of origin and the strain-pulse time of reception velocity of propagation that multiply by strain-pulse is the distance between electronics storehouse and the float, therefore realizes the measurement of liquid level.The weak point of this liquid level gauge is: the temperature drift meeting of electronics storehouse clocking internal circuit crystal oscillator causes the time difference measurements error of current impulse time of origin and strain-pulse time of reception, thus accurate measuring liquid level value.In addition, the waveguide filament material behavior can cause the variation of strain-pulse velocity of propagation with variation of temperature, so the level value measuring error is bigger.
Summary of the invention
Technical matters: technical problem to be solved in the utility model is, a kind of magnetostriction liquidometer is provided, and is subjected to the influence of temperature factor when avoiding magnetostriction liquidometer to measure, and measuring error occurs, guarantees the accuracy of measuring liquid level value.
Technical scheme: for solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of magnetostriction liquidometer, comprise cable, the electronics storehouse, outer tube, return wire, waveguide filament, float and damper, the top of described outer tube is connected with the electronics storehouse, be provided with current pulser and strain-pulse testing circuit in the electronics storehouse, the middle part of outer tube is embedded in the float, be provided with damper in the bottom endoporus of outer tube, be provided with return wire and waveguide filament in the inner chamber of outer tube, the lower end of return wire is connected with the lower end of waveguide filament, and be wrapped in the outside surface of damper, the upper end of waveguide filament connects the current pulser positive pole, the upper end of return wire connects the current pulser negative pole, the mounting coil of waveguide filament upper end is in the outside of strain-pulse testing circuit, described float comprises body, be provided with the hollow ball of through hole, last nylon ring, middle nylon ring, following nylon ring, upper magnetic ring and following magnet ring, the hollow ball sealing shroud is contained in the outside of body, last nylon ring, upper magnetic ring, middle nylon ring, following magnet ring and following nylon ring are embedded on the inwall of body from the top down successively; Described upward nylon ring, middle nylon ring, following nylon ring, upper magnetic ring all touch with the outer wall of outer tube mutually with following magnet ring; Described outer tube, hollow ball and body are made by magnetic stainless steel material not.
Beneficial effect: compared with prior art, adopt the technical solution of the utility model, the mistiming that can accurately measure current impulse time of origin and strain-pulse time of reception, thereby accurate measuring liquid level value.The magnetostriction liquidometer of the technical program is provided with the twice magnet ring that keeps at a certain distance away in float.The time that distance between upper magnetic ring and the following magnet ring is transmitted divided by strain-pulse between the upper magnetic ring of actual measurement and the following magnet ring can obtain the strain-pulse velocity of propagation under the actual environment, replace the strain-pulse velocity of propagation of demarcating when dispatching from the factory with the strain-pulse velocity of propagation under the actual environment, calculate liquid level and can revise the measuring error that environment temperature causes, overcome existing magnetostriction liquidometer temperature influence and cause the bigger shortcoming of measuring error.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is a longitudinal sectional view of the present utility model.
Fig. 3 is the front view of the float in the utility model.
Fig. 4 is the longitudinal sectional view of the float in the utility model.
Have among the figure: 1. cable, 2. electronics storehouse, 3. outer tube, 4. return wire, 5. waveguide filament, 6. float, 7. damper, 8. steel pipe is 9. gone up nylon ring, 10. spheroid, nylon ring in 11., 12. upper magnetic rings, 13. times magnet rings, 14. times nylon rings.
Embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is described in detail.
As shown in Figures 1 to 4, a kind of magnetostriction liquidometer of the present utility model comprises cable 1, electronics storehouse 2, outer tube 3, return wire 4, waveguide filament 5, float 6 and damper 7.Outer tube 3 is made by magnetic stainless steel material not.The top of outer tube 3 is connected with electronics storehouse 2.Be provided with current pulser and strain-pulse testing circuit in the electronics storehouse 2.The middle part of outer tube 3 is embedded in the float 6.Float 6 can move up and down along the outer wall of outer tube 3.Be provided with damper 7 in the bottom endoporus of outer tube 3.These damper 7 preferred aluminium dampers that adopt.Be provided with return wire 4 and waveguide filament 5 in the inner chamber of outer tube 3, the lower end of return wire 4 is connected with the lower end of waveguide filament 5, and is wrapped in the outside surface of damper 7.The upper end of waveguide filament 5 connects the current pulser positive pole, and the upper end of return wire 4 connects the current pulser negative pole.The mounting coil of waveguide filament 5 upper ends is in the outside of strain-pulse testing circuit.The strain-pulse testing circuit detects strain-pulse by the coil of waveguide filament 5 upper ends.Float 6 comprises body 8, is provided with the hollow ball 10 of through hole, goes up nylon ring 9, middle nylon ring 11, nylon ring 14, upper magnetic ring 13 and following magnet ring 12 down, and hollow ball 10 and body 8 are made by magnetic stainless steel material not.Hollow ball 10 sealing shrouds are contained in the outside of body 8.The junction of hollow ball 10 and body 8 does not have the space.Last nylon ring 9, upper magnetic ring 13, middle nylon ring 11, following magnet ring 12 and following nylon ring 14 are embedded on the inwall of body 8 from the top down successively.Last nylon ring 9, middle nylon ring 11, following nylon ring 14, upper magnetic ring 13 all touch with the outer wall of outer tube 3 mutually with following magnet ring 12.
When the magnetostriction liquidometer of this structure was worked, the current pulsers in the electronics storehouse 2 at first applied a current impulse on waveguide filament 5.A toroidal magnetic field is followed in current impulse simultaneously, propagates downwards along waveguide filament 5 with the light velocity, and at first this magnetic field can run into the upper magnetic ring 12 on the float 6, and waveguide filament 5 produces short time set, therefore produces a strain-pulse.This strain-pulse passes ripple with fixing ultrasonic velocity to the two ends of waveguide filament 5.When propagating into damper 7 one ends, the damped device 7 of strain-pulse absorbs.When propagating into electronics storehouse 2 one ends, strain-pulse is received by the strain-pulse testing circuit in electronics storehouse 2.Current impulse this moment time of origin and this strain-pulse time of reception difference are
Propagate downwards in this magnetic field then, can run into the following magnet ring 13 of float 6, and a strain-pulse takes place the waveguide filament 5 same short time sets that produce.This strain-pulse passes ripple with fixing ultrasonic velocity to the two ends of waveguide filament 5.When propagating into damper 7 one ends, the damped device 7 of strain-pulse absorbs.When propagating into electronics storehouse 2 one ends, strain-pulse is received by the strain-pulse testing circuit in electronics storehouse 2.Current impulse this moment time of origin and this strain-pulse time of reception difference are
Because the toroidal magnetic field that current impulse produced is with light velocity propagation, its transmission time ignores, and then strain-pulse is in the upper magnetic ring 12 of float 6 and the transmission time between the following magnet ring 13
Because upper magnetic ring in the float 6 12 and following magnet ring 13 spacings are fixed value
So, can get the velocity of propagation of strain-pulse in waveguide filament 5
This velocity of propagation
Be at constant spacing
Therefore the velocity of propagation of following on-site proving has eliminated the error that temperature causes, can obtain the upper magnetic ring 12 of float 6 and the distance between the electronics storehouse 2 with this velocity of propagation
, the following magnet ring 13 of float 6 and the distance between the electronics storehouse 2
In a word, the magnetostriction liquidometer of this structure is provided with the twice magnet ring that keeps at a certain distance away in float 6.The time that distance between upper magnetic ring 12 and the following magnet ring 13 is transmitted divided by strain-pulse between the upper magnetic ring 12 of actual measurement and the following magnet ring 13 can obtain the strain-pulse velocity of propagation under the actual environment, replace the strain-pulse velocity of propagation of demarcating when dispatching from the factory with the strain-pulse velocity of propagation under the actual environment, calculate liquid level and can revise the measuring error that environment temperature causes, overcome existing magnetostriction liquidometer temperature influence and cause the bigger shortcoming of measuring error.
Claims (2)
1. magnetostriction liquidometer, comprise cable (1), electronics storehouse (2), outer tube (3), return wire (4), waveguide filament (5), float (6) and damper (7), the top of described outer tube (3) is connected with electronics storehouse (2), be provided with current pulser and strain-pulse testing circuit in the electronics storehouse (2), the middle part of outer tube (3) is embedded in the float (6), be provided with damper (7) in the bottom endoporus of outer tube (3), be provided with return wire (4) and waveguide filament (5) in the inner chamber of outer tube (3), the lower end of return wire (4) is connected with the lower end of waveguide filament (5), and be wrapped in the outside surface of damper (7), the upper end of waveguide filament (5) connects the current pulser positive pole, the upper end of return wire (4) connects the current pulser negative pole, the mounting coil of waveguide filament (5) upper end is in the outside of strain-pulse testing circuit, it is characterized in that
Described float (6) comprises body (8), is provided with the hollow ball (10) of through hole, goes up nylon ring (9), middle nylon ring (11), nylon ring (14), upper magnetic ring (13) and following magnet ring (12) down, hollow ball (10) sealing shroud is contained in the outside of body (8), and last nylon ring (9), upper magnetic ring (13), middle nylon ring (11), following magnet ring (12) and following nylon ring (14) are embedded on the inwall of body (8) from the top down successively; Described upward nylon ring (9), middle nylon ring (11), following nylon ring (14), upper magnetic ring (13) all touch with the outer wall of outer tube (3) mutually with following magnet ring (12);
Described outer tube (3), hollow ball (10) and body (8) are made by magnetic stainless steel material not.
2. according to the described magnetostriction liquidometer of claim 1, it is characterized in that described damper (7) adopts the aluminium damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200508839U CN201955128U (en) | 2011-03-01 | 2011-03-01 | Magnetostriction liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200508839U CN201955128U (en) | 2011-03-01 | 2011-03-01 | Magnetostriction liquid level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201955128U true CN201955128U (en) | 2011-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200508839U Expired - Fee Related CN201955128U (en) | 2011-03-01 | 2011-03-01 | Magnetostriction liquid level meter |
Country Status (1)
| Country | Link |
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| CN (1) | CN201955128U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251657A (en) * | 2013-06-28 | 2014-12-31 | 上海球栅测量系统有限公司 | Displacement sensor |
| CN104251658A (en) * | 2013-06-28 | 2014-12-31 | 上海雷尼威尔技术有限公司 | Displacement sensor |
| CN103707549B (en) * | 2013-12-17 | 2016-03-23 | 马钢(集团)控股有限公司 | Hydraulic press oil tank level supervising device |
| CN105987740A (en) * | 2014-11-04 | 2016-10-05 | 韩国地质资源研究院 | Multi-measurement system and sensor for measuring underground water and surface water |
| CN111089660A (en) * | 2020-01-03 | 2020-05-01 | 河北工业大学 | Absolute ultrasonic magnetostrictive temperature sensor |
| CN111220241A (en) * | 2020-01-16 | 2020-06-02 | 天津商业大学 | Self-correcting magnetostrictive liquid level meter |
| CN111521234A (en) * | 2020-03-17 | 2020-08-11 | 北京晨淼科技有限公司 | Magnetostrictive guided wave liquid level meter for high-temperature liquid |
| CN111947746A (en) * | 2020-07-10 | 2020-11-17 | 上海奥迪斯仪器科技有限公司 | Magnetostrictive liquid level meter |
-
2011
- 2011-03-01 CN CN2011200508839U patent/CN201955128U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251657A (en) * | 2013-06-28 | 2014-12-31 | 上海球栅测量系统有限公司 | Displacement sensor |
| CN104251658A (en) * | 2013-06-28 | 2014-12-31 | 上海雷尼威尔技术有限公司 | Displacement sensor |
| CN103707549B (en) * | 2013-12-17 | 2016-03-23 | 马钢(集团)控股有限公司 | Hydraulic press oil tank level supervising device |
| CN105987740A (en) * | 2014-11-04 | 2016-10-05 | 韩国地质资源研究院 | Multi-measurement system and sensor for measuring underground water and surface water |
| CN111089660A (en) * | 2020-01-03 | 2020-05-01 | 河北工业大学 | Absolute ultrasonic magnetostrictive temperature sensor |
| CN111089660B (en) * | 2020-01-03 | 2024-03-22 | 河北工业大学 | Absolute ultrasonic magnetostrictive temperature sensor |
| CN111220241A (en) * | 2020-01-16 | 2020-06-02 | 天津商业大学 | Self-correcting magnetostrictive liquid level meter |
| CN111521234A (en) * | 2020-03-17 | 2020-08-11 | 北京晨淼科技有限公司 | Magnetostrictive guided wave liquid level meter for high-temperature liquid |
| CN111947746A (en) * | 2020-07-10 | 2020-11-17 | 上海奥迪斯仪器科技有限公司 | Magnetostrictive liquid level meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20190301 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |