CN205580564U - Magnetic force level detection device - Google Patents
Magnetic force level detection device Download PDFInfo
- Publication number
- CN205580564U CN205580564U CN201521043697.7U CN201521043697U CN205580564U CN 205580564 U CN205580564 U CN 205580564U CN 201521043697 U CN201521043697 U CN 201521043697U CN 205580564 U CN205580564 U CN 205580564U
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- magnetic force
- measuring unit
- contact
- conduit
- measurement device
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Abstract
The utility model provides a magnetic force level detection device mainly comprises pipe, soft measurement cover, electro -magnet, permanent magnetism piece, the resistance network circuit board that includes contact switch and intelligent unit etc.. Each surface distribution of pipe has the stationary contact, movable contact and electro -magnet, the outer wearing layer that is of soft measurement cover, the interior conducting layer that is, the centre gripping is gone back to the centre has the permanent magnetism piece, after material height floods soft measurement cover, the extrusion force is greater than the magnetic force between electro -magnet and the permanent magnetism piece, make soft measurement cover shrink contact pipe, the inside conductive filament of pipe is with each horizontal distribution's of pipe contact switch contact intercommunication, thereby some precision resistor in the short circuit resistance network, the material thing place value resistance value obtains the container after converting in. The utility model discloses can be used to measure liquid or solids position, still have the automatic adhesion work ability of removing.
Description
Technical field
This utility model relates to a kind of device measuring material in container height, in particular to a kind of magnetic force Level measurement device.
Background technology
Level measurement is exactly the height measuring material in container, and material is generally divided into liquid and solid, and the thing position of liquid is commonly referred to as liquid level, and position is also commonly referred to as expected in the thing position of solid.At present, floating ball type liquid-level meter and pressure-type liquidometer is had for measuring the main device of liquid level, mainly having capacitive level probe and Weight type level meter for measuring the device of solids position, the device that can simultaneously measure two kinds of material thing positions has ultrasonic material level meter and radar levelmeter etc..Floating ball type liquid-level meter simple in construction, low cost, but when measuring corrosive liquids liquid level, need to install corrosion-inhibiting coating additional, this causes the cost of liquidometer to increase.The principle that pressure-type liquidometer is directly proportional according to fluid pressure and liquid height is made, by installing pressure transducer in liquid bottom, then institute's pressure measurement force value is converted to level value, the measurement parts of pressure-type liquidometer directly contact with fluid to be measured, actually used to select different pressure transducer diaphragms according to the degree of corrosion of surveyed liquid.Capacitive level probe is applied more in measuring solid material, and its main deficiency is that temperature drift is big, demarcates and is difficult to and is afraid of adhesion etc..Weight type level meter mechanical part is more, and measurement interval is big, is not suitable for measuring continuously.Ultrasonic material level meter and radar levelmeter broadly fall into Non-contact measurement type, do not limited by tested material corrosivity or material form, can be widely used for measuring the thing position of various liquid or solid, but it is expensive, complexity is installed, and precision is the most affected by environment, it is difficult to there is the occasion of the equipment such as foam, stirring, pipeline and heating in container.
Utility model content
This utility model provides a kind of magnetic force Level measurement device, and described device includes the gauge outfit part being installed on outside container and the conduit portion being installed in container.The core of gauge outfit part is intelligent cell, and its major function is to produce the exciting current of fixed size and process the various signals of telecommunication；Conduit portion is mainly fixed line, electric magnet, coiling, permanent magnetism sheet and circuit board formed by conduit, soft measuring unit, stationary contact, movable contact, conduit base, measuring unit, and it stretches among material as the critical piece measuring thing position.Table header sets up separately and is equipped with adjustment of field excitation button, and in order to regulate the size of exciting current, electric current flows through electric magnet through coiling, thus produces the magnetic field of certain pole orientation on the iron core of electric magnet, and magnetic field intensity changes with size of current；Conduit is polyhedron-shaped, evenly distributed stationary contact and movable contact are distributed on each, catheter interior is additionally provided with the circuit board being made up of precision resistance and contact switch, being externally connected to soft measuring unit, soft measuring unit outer layer is wearing layer, and internal layer is conductive layer, intermediate distribution has permanent magnetism sheet, permanent magnetism sheet is identical with electromagnet pole near the magnetic pole of conduit one side, makes conduit and conductive layer separate according to the principle of homopolar-repulsion, electric magnet and permanent magnetism sheet are mutually exclusive；When the material in container does not flood soft measuring unit, supravasal stationary contact does not connects with movable contact, the contact switch of its correspondence is in open circuit, when the material in container rises the soft measuring unit flooding certain altitude, the extruding force of material overcomes magneticaction, the conductive layer making corresponding height scope contacts with stationary contact and movable contact, so that contact switch Guan Bi, all contact switches Guan Bi of same precision resistance parallel connection makes this precision resistance be shorted, the resistor network resistance being made up of precision resistance is finally made to change, this resistance value is converted to material thing position after the intelligent cell being installed on gauge outfit processes.
Further improvement as such scheme:
Described intelligent cell includes that keyboard circuit, resistance signal process circuit, field circuit, display circuit and the signal is far passed port.
Connecting in the middle part of described soft measuring unit and between conduit has measuring unit to fix line.
The conductive layer of described soft measuring unit is made up of multiple annular conductive silk genesis analysis, and adjacent conductive silk does not connects, and the most each conductive filament is divided into the same number of with contact switch multiple sections, does not connects between every section.
It is series relationship between precision resistance on described circuit board, each precision resistance is parallel with the contact switch of multiple series connection.
The number of the contact switch that described each precision resistance is in parallel, when conduit is polyhedron not less than polyhedral number, when conduit is cylinder not less than two.
The magnetic force size of described electric magnet is adjusted by adjustment of field excitation button.
The condition that described supravasal contact contacts with conductive filament on conductive layer is that the material extruding force to soft measuring unit wearing layer is more than the magnetic force suffered by permanent magnetism sheet.
The minimizing technology of described soft measuring unit outer wear layer material sticks is amplitude and the frequency changing electric magnet exciting current.
A kind of magnetic force Level measurement device provided by the utility model, can be not only used for measuring liquid level, can be used for again measuring solids position, and apparatus structure is simple, and low cost of manufacture is easy for installation.Meanwhile, the electric magnet magnetic field intensity of a kind of magnetic force Level measurement device provided by the utility model can arbitrarily be arranged, and adapts in the solids position measuring the different densities such as granule, opaque.It addition, this utility model also has automatically except adhesion function, soft measuring unit corrosion-resistant, resistant to elevated temperatures is selected to can be additionally used in the applied environment of high temperature and severe corrosive.
Accompanying drawing explanation
Fig. 1 is this utility model agent structure schematic diagram.
Fig. 2 is this utility model conduit portion sectional view.
Fig. 3 is this utility model resistor network structural representation.
Fig. 4 is this utility model intelligent cell functional structure chart.
[reference numeral explanation] 1. gauge outfit；2. intelligent cell；3. display screen；4. button；5. binding post；6. flange；7. adjustment of field excitation button；The most soft measuring unit；9. conduit；10. wearing layer；11. conductive layers；12. electric magnet；13. stationary contacts；14. movable contacts；15. conduit bases；16. materials；17. permanent magnetism sheets；18. containers；19. measuring units fix line；20. circuit boards；21. coilings；22. conductive filaments；23. precision resistances；24. wires；25. contact switches.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and methods for using them are more clearly understood from, in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further.
As illustrated in fig. 1 and 2, the conduit portion of a kind of magnetic force Level measurement device provided by the utility model includes that soft measuring unit 8, conduit 9, electric magnet 12, stationary contact 13, movable contact 14, conduit base 15, permanent magnetism sheet 17, measuring unit fix line 19 and circuit board 20.Conduit 9 is in polyhedron or cylindrical shape, and transversely arranged stationary contact 13 and movable contact 14 on each of which face, the spacing of contact longitudinal arrangement determines this utility model and measures the precision of thing position, and the least precision of spacing is the highest, otherwise the lowest；It is also associated with the electric magnet 12 with contact level on each of conduit 9, produces magnetic force when the coiling 21 in electric magnet 12 has electric current to flow through；Soft measuring unit 8 is fixed line 19 by measuring unit and is connected on conduit 9, it is connected to bottom it on conduit base 15, strict seal after connection, make external agency can not contact with conduit 9, soft measuring unit 8 outer layer is wearing layer 10, internal layer is conductive layer 11, the annular conductive silk 22 that conductive layer 11 is not turned on mutually by a circle circle is constituted, conductive filament 22 can make horizontal contact connect, but longitudinal contact can not be made to connect, each conductive filament 22 is divided into again multiple section identical with 9 numbers of polyhedron conduit, does not connects between each section；It is additionally provided with permanent magnetism sheet 17 in the middle of wearing layer 10 and conductive layer 11, its pole orientation is identical with the pole orientation of the electric magnet 12 on corresponding surface, when electric magnet 12 is energized, the magnetic field stationary contact 13 making conductive layer 11 get along well on conduit 9 that repels each other in the same direction contacts with movable contact 14, when external force suffered by wearing layer 10 is more than magnetic force, stationary contact 13 connects with movable contact 14, and corresponding contact switch 25 closes.
nullCircuit board 20 structural representation of a kind of magnetic force Level measurement device provided by the utility model is as indicated at 3，It is made up of precision resistance 23 and contact switch 25，Multiple precision resistances 23 are composed in series resistor network，On the number of precision resistance 23 and conduit 9, the contact line number of genesis analysis is equal，Each precision resistance 23 is parallel with the contact switch 25 of multiple series connection，The number of planes of its number and conduit 9 is equal，Conduit 9 shown in Fig. 2 is tetrahedron，So contact switch 25 quantity of each precision resistance 23 parallel connection is 4 in Fig. 3，When conduit 9 is cylinder，Contact switch 25 quantity should be not less than two，Each contact switch 25 has a stationary contact 13 and a movable contact 14，The extension of these contacts is distributed on each of conduit 9，When the stationary contact 13 on multiple connects with movable contact 14 simultaneously，Corresponding precision resistance 23 is shorted，This makes the resistance of whole precision resistance network change，Resistor network and intelligent cell 2 connect，Resistance value can get measured object place value after treatment.
As shown in Figure 4, the core of the gauge outfit part of a kind of magnetic force Level measurement device provided by the utility model is intelligent cell 2, and it is connected to display screen 3, button 4, binding post 5 and adjustment of field excitation button 7.Intelligent cell 2, with microcontroller 101 as core, processes circuit 103, field circuit 104, display circuit 105 and the signal is far passed port 106 including keyboard circuit 102, resistance signal.Keyboard circuit 102 connects button 4, for being configured device operating parameters；Resistance signal processes circuit 103 and connects circuit board 20, is acquired the resistance of resistor network, is converted into voltage/current signals, is further converted to digital quantity and gives microcontroller 101；Field circuit 104 connects adjustment of field excitation button 7, electric magnet 12 is connected also by coiling 21, regulation adjustment of field excitation button 7 can produce different size of exciting current, so that electric magnet 12 produces different repulsive forces to permanent magnetism sheet 17, this power size should determine according to material 16 density in container 18；Display circuit 105 shows measured thing place value, also shows the mode of operation of this device as human-computer interaction interface；Measured value, as the signal output interface of measuring instruments, can be exported other equipment by the signal is far passed port 106 in a wired or wireless manner.
In conjunction with upper figure Suo Shi, step and the method for this utility model detectable substance position are as follows:
S1, by flange 6, device described in the utility model is arranged on non-hermetic container 18, according to the Auto-regulating System of Density of Heavy Medium adjustment of field excitation button 7 of measured medium, makes electric magnet 12 produce appropriately sized magnetic force；
S2, now, if container 18 does not has material 16, there is repulsive force in permanent magnetism sheet 17 and electric magnet 12 within the most soft measuring unit 8, the conductive filament 22 on conductive layer 11 is made not connected with movable contact 14 by the stationary contact 13 on conduit 9, contact switch 25 is opened a way, thus the resistance of resistor network is the series value of all precision resistances 23 on circuit board 20；
If the material 16 in S3 container 18 increases to the soft measuring unit 8 flooding certain altitude, then the extruding force of material 16 makes soft measuring unit 8 deformation retract (walk according to S1, this extruding force is more than the magnetic force between electric magnet 12 and permanent magnetism sheet 17), conductive filament 22 is made to contact and connect stationary contact 13 and movable contact 14, corresponding contact switch 25 closes, when conplane all contact switches 25 close, corresponding precision resistance 23 is shorted, the resistance causing whole resistor network reduces, the proportional relation of actual height of this decreasing value and material 16；
If material 16 reduces under certain altitude in S4 container 18, originally material 16 extruding force suffered by the soft measuring unit 8 being submerged disappears, magnetic force between electric magnet 12 and permanent magnetism sheet 17 makes conductive filament 22 leave stationary contact 13 and movable contact 14, corresponding contact switch 25 is opened a way, precision resistance 23 is access in resistor network again, the resistance causing whole resistor network increases, this value added also proportional relation with the actual height of material 16, can obtain thing position height after intelligent cell 2 converts；
In an exemplary implementation of the present utility model, measurement medium is solid, piling up such as material 16 causes interface uneven, now the stationary contact 13 on multiple of a certain height of conduit 9 connects time different with movable contact 14, thus the precision resistance 23 of correspondence is not shorted, the height value that thing place value is material 16 extreme lower position of actual output.
In an exemplary implementation of the present utility model, if adhered materials 16 occurs in the wearing layer 10 of soft measuring unit 8, the electric current in electric magnet 12 can be made to shake with certain frequency and amplitude by control and remove.
The foregoing is only the embodiment that this utility model is exemplary, be not limited to scope of the present utility model.Any those skilled in the art, the equivalent variations made on the premise of without departing from design of the present utility model and principle and amendment, the use step of some device is increased or decreased, the scope of this utility model protection all should be belonged to.
Claims (9)
1. a magnetic force Level measurement device, it is characterised in that: described device includes that conduit, soft measuring unit, measuring unit fix line, conduit base, electric magnet, stationary contact, movable contact, permanent magnetism sheet, circuit board, adjustment of field excitation button and intelligent cell；Have measuring unit to fix line between described conduit and soft measuring unit to connect, soft measuring unit end is fixed on conduit base, its outer layer is provided with wearing layer, internal layer is provided with conductive layer, and centre is provided with permanent magnetism sheet, and conductive layer is made up of annular conductive silk, catheter surface is connected to stationary contact, movable contact and electric magnet, catheter interior is provided with circuit board, and circuit board is made up of precision resistance and contact switch, and circuit board connects intelligent cell.
2. a kind of magnetic force Level measurement device as claimed in claim 1, it is characterised in that: described intelligent cell includes that keyboard circuit, resistance signal process circuit, field circuit, display circuit and the signal is far passed port.
3. a kind of magnetic force Level measurement device as claimed in claim 1, it is characterised in that: connect in the middle part of described soft measuring unit and between conduit and have measuring unit to fix line.
4. a kind of magnetic force Level measurement device as claimed in claim 1, it is characterized in that: the conductive layer of described soft measuring unit is made up of multiple annular conductive silk genesis analysis, adjacent conductive silk does not connects, the most each conductive filament is divided into the same number of with contact switch multiple sections, does not connects between every section.
5. a kind of magnetic force Level measurement device as claimed in claim 1, it is characterised in that: it is series relationship between the precision resistance on described circuit board, each precision resistance is parallel with the contact switch of multiple series connection.
6. a kind of magnetic force Level measurement device as claimed in claim 1, it is characterised in that: the number of the contact switch that described each precision resistance is in parallel, when conduit is polyhedron not less than polyhedral number, when conduit is cylinder not less than two.
7. a kind of magnetic force Level measurement device as claimed in claim 1, it is characterised in that: the magnetic force size of described electric magnet is adjusted by adjustment of field excitation button.
8. a kind of magnetic force Level measurement device as claimed in claim 1, it is characterised in that: the condition that described supravasal contact contacts with conductive filament on conductive layer is that the material extruding force to soft measuring unit wearing layer is more than the magnetic force suffered by permanent magnetism sheet.
9. a kind of magnetic force Level measurement device as claimed in claim 1, it is characterised in that: the minimizing technology of described soft measuring unit outer wear layer material sticks is amplitude and the frequency changing electric magnet exciting current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521043697.7U CN205580564U (en) | 2015-12-15 | 2015-12-15 | Magnetic force level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521043697.7U CN205580564U (en) | 2015-12-15 | 2015-12-15 | Magnetic force level detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205580564U true CN205580564U (en) | 2016-09-14 |
Family
ID=56882635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521043697.7U Withdrawn - After Issue CN205580564U (en) | 2015-12-15 | 2015-12-15 | Magnetic force level detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205580564U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371922A (en) * | 2015-12-15 | 2016-03-02 | 江南大学 | Magnetic material level detection device |
| CN105371920A (en) * | 2015-12-15 | 2016-03-02 | 江南大学 | Air bag type material level detection device |
-
2015
- 2015-12-15 CN CN201521043697.7U patent/CN205580564U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371922A (en) * | 2015-12-15 | 2016-03-02 | 江南大学 | Magnetic material level detection device |
| CN105371920A (en) * | 2015-12-15 | 2016-03-02 | 江南大学 | Air bag type material level detection device |
| CN105371922B (en) * | 2015-12-15 | 2018-11-30 | 江南大学 | A kind of magnetic force Level measurement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160914 Effective date of abandoning: 20181130 |