CN100424473C - Amorphous alloy flow sensor - Google Patents
Amorphous alloy flow sensor Download PDFInfo
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- CN100424473C CN100424473C CNB2006101233856A CN200610123385A CN100424473C CN 100424473 C CN100424473 C CN 100424473C CN B2006101233856 A CNB2006101233856 A CN B2006101233856A CN 200610123385 A CN200610123385 A CN 200610123385A CN 100424473 C CN100424473 C CN 100424473C
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- water conservancy
- conservancy diversion
- rotor
- amorphous
- bearing
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Abstract
The invention relates to an amorphous alloy flow sensor that comprises the liner and its upper cap, the sensing probe, the casing, the fore liquidguide mount, the after liquidguide mount, the rotor, the bearing. The sensing probe is sealed in the liner and its upper cap which are fixed on the upper of the casing; the casing is a circle hollow canal on which the fore liquidguide mount and the after liquidguide mount are mounted, the depression which is used to fix the bearing of the rotor is set at the fore liquidguide mount and the after liquidguide mount; said sensing probe consists of the coil, the amorphous iron core, the permanent magnet, the coil circles the outer circumference of the amorphous iron core in mode of helical, the permanent magnet is mounted above the amorphous iron core and the coil. The invention could test the weak signal sensitively, but also the signal waveform is relatively stable and simple, so it is convenient to process the signal, and the signal is displayed in digit or connected with the microcomputer with the designed circuit to control the flow measured directly.
Description
Technical field
The present invention relates to be used for sensing, magnetoelectricity and the signal Processing field of the measurement of fluid velocity and flow, specifically is a kind of amorphous alloy flow sensor.
Background technology
Measurement accurately to worker's liquid is also paid close attention to by people with monitoring always, therefore on the market many flowmeters miscellaneous have appearred, they realize measuring employed method means and have nothing in common with each other, the method of useful machinery is directly measured, the method of useful physics is measured, also have methods such as utilizing chemistry or optics realize to measure, but the measurement that realizes with which kind of method is all owing to this kind method itself, and the field of having limited its application; In addition, the type of worker's liquid is also a lot, and gas is arranged, liquid is arranged, and liquid-solid mixing is arranged, and has liquid gas to mix, even also has the polyphasic flow of heterogeneous mixing, so do not have at present, also is difficult to occur a kind of flow measurement that is common to all occasions in the future.On the market, especially use more majority to be rotary flowmeter on the home market now, this kind flowmeter is made the complete mechanical formula on the one hand, can't be connected with microcomputer, can't directly show flow number; In addition on the one hand, these several years domestic has occurred also that many Direct Digital electronics show, but compares with similar external product, all exists the life-span not long, and numerical stability is bad, the not high shortcoming of precision or sensitivity.
Summary of the invention
The objective of the invention is to, sensitivity not high defective not long at the existing flowmeter life-span, a kind of amorphous alloy flow sensor is provided, on the basis of original physical construction, use sensing probe of the present invention, utilize this probe can not only measure faint signal very delicately, and signal waveform is relatively stable and simple, can handle signal easily, and the circuit Direct Digital formula by design shows or is connected with microcomputer, directly measured flow controlled.
Amorphous alloy flow sensor of the present invention, the socket cover, sensing probe, housing, preceding water conservancy diversion support, back water conservancy diversion support, rotor and the bearing that comprise sleeve and top thereof, the structure of each parts is as follows: sensing probe is sealed in the socket cover of sleeve and top thereof, and sleeve and socket cover are fixed in the top of housing; Housing is a circular hollow pipeline, and its two ends are separately installed with preceding water conservancy diversion support, back water conservancy diversion support, and preceding water conservancy diversion support and back water conservancy diversion support are provided with the pit of the bearing that rotor is installed.
Described sleeve becomes cylindrical shape with socket cover, can be tight with the screw envelope.
The output line of sensing probe can be drawn from the small holes that socket cover is put;
Sleeve and socket cover can be fixed in the middle upper part of housing in the mode of screw thread;
Left end in the housing has step and is used for fixing preceding water conservancy diversion support, and right-hand member has screw thread and cooperates to lock back water conservancy diversion support with set bolt.
Before water conservancy diversion support and back water conservancy diversion support can be three-legged support, the part that they head-on contacts with fluid is all with arc transition, the support inboard all has the pit that is used to lay bearing, its big or small and selected bearing mates.
What bearing was selected for use is the angular contact jewel that stainless steel material is made, and adopts interference fit between bearing and support.
Rotor can differently be made different shapes according to what its concrete application scenario and sensitivity required, as T-shaped, and straight plate shape, spirality; Simultaneously also different that can make magnetic conduction or non-magnetic according to the structure of occasion of using and probe, can be bumped into direct magnet in the blade under some situation.
Spinner blade is a screw type blade construction, and its interlobate registration is 1.1-1.2, and rotor is supported by left and right sides two bearings and be fixing, adopts interference fit between rotor and bearing.
Each part of enclosure interior is installed one by one according to order from right to left, is locked by the bolt of right-hand member at last.
Described sensing probe is made of coil, amorphous iron core, permanent magnet, and on the amorphous iron core excircle, permanent magnet places amorphous iron core and coil top to coil in the mode of spiral, and is last whole with sealing with wax tightly, with anti-tamper.
What described permanent magnet adopted is the strong magnetic of neodymium iron boron, is oblate;
Amorphous iron core is formed by stacking by Fe-based amorphous soft Ci alloy synusia after micritization is handled, and monnolithic case is a little rectangular parallelepiped;
Coil is the thin copper wire of 1.1mm, and the number of turns can be from the hundreds of circle to thousands of circles according to designing requirement.
The inboard pipeline that forms of shell, rotor, bearing, support directly directly contact with detected fluid, fluid flows through in pipeline with certain speed, support divides former and later two supports, all according to being of value to the Streamline Design that fluid flows, its effect mainly is that the rotor to the centre plays and supports and positioning action, also convection cell has certain water conservancy diversion and orientation simultaneously, allows fluid flow through rotor better.
By the water conservancy diversion of support and pipeline, the fluid rotor of flowing through, rotor is stressed to rotate;
The speed that spinner blade rotates and the flow of fluid meet following relation: n=K (Q-q)
In the formula, n is the velocity of rotation of blade, and K is an instrument coefficient, the Q actual fluid flow, and q starts flow.
The made sensing probe of useful non-crystalline material above rotor, because the characteristic of non-crystalline material has determined it that good magnetic property is arranged, again the outside of amorphous around on the coil of some, below rotor when moving, just can produce the magnetic field in the probe and disturb, owing to be interfered, probe just can induce the signal of certain waveform along with the situation of rotor rotation, this signal can reflect the situation of rotor rotation truly, that is to say the situation that fluid flows.
The very important several characteristics of this sensing probe is sensitive and passive, promptly do not need additional power source, directly induce signal, this signal is by certain signal processing system, it is carried out filtering, amplify, filtering once more, shaping, digital-to-analog conversion, again the digital signal that obtains is carried out recording processing and calculating by chip, and pass through display system, finally the result that sensing gauge is calculated is shown to the user of service so that read with the form of numeral, simultaneously also can pass through data-interface, signal is directly imported microcomputer directly be connected, in computing machine, signal is handled and calculated with computer, in addition can be according to the actual needs, it is carried out secondary development, promptly according to the result of computing, by relatively or the mode of setting, the flow of convection cell carries out real-time automatic control conversely.
The present invention compared with prior art has following advantage: structure is simple relatively, that measures is highly sensitive, passive during sensing probe, do not need additional power source, just can induce signal automatically, and can directly read measured result, and can carry out secondary development to this device at concrete application scenario simultaneously, convection cell carries out real-time monitoring; Can directly import microcomputer to the signal of sensing in addition, cooperate other devices to form a comprehensive system.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of the sensing probe among Fig. 1;
Fig. 3 is the signal Processing that connects of the output line of sensing probe in the device of Fig. 1 and the circuit theory diagrams of result's demonstration.
Embodiment
In Fig. 1, sensing probe 1 is sealed in the socket cover 7 of sleeve and top thereof, and sleeve and socket cover 7 are fixed in the top of housing 2; Housing 2 is a circular hollow pipeline, and its two ends are separately installed with preceding water conservancy diversion support 4, back water conservancy diversion support 3, and preceding water conservancy diversion support 4 and back water conservancy diversion support 3 are provided with the pit of the bearing 5 that rotor 6 is installed.
Back water conservancy diversion support 3 and preceding water conservancy diversion support 4 mainly play water conservancy diversion and blade are played a supporting role, and all use the non-magnetic material, fluid from fore-stock backward support flow, if when front and back support is made symmetry, can just need not to consider directivity; Angular contact bearing 5 and spinner blade 6 are main stressed members, requirement according to actual conditions and precision sensitivity, its shape can be done shapes such as spirality or T-shaped, its material also according to the probe structure can with magnetic conductivity preferably material do also available non-magnetic material.
In Fig. 2, described sensing probe is made of coil 1-2, amorphous iron core, permanent magnet 1-1, coil 1-2 in the mode of spiral on amorphous iron core 1-3 excircle, a, b are two end points of coil, permanent magnet 1-1 places amorphous iron core 1-3 and coil 1-2 top, last whole tight with sealing with wax, with anti-tamper.
Permanent magnet adopts the strong magnetic of neodymium iron boron, because this kind material magnetic field intensity is very high, so volume can be very little, if but what adopt is to put magnet on the blade, this permanent magnet can remove; The diameter of coil 1-2 choosing is the smaller the better, so under same volume, can around the number of turn nine many more, resultant signal is just strong more; The used material of amorphous iron core 1-3 is the extraordinary amorphous nanocrystalline soft magnetic material of magnetic property, and can make bar-shaped also can be that multilayer chip is formed by stacking.
In Fig. 3,8 pairs of signals from sensing probe of signal processing part parallel circuit amplify, filtering and shaping, output square wave digital signal; Cup counting circuit 9 is realized the conversion between frequency record, the flow and is transmitted video data; Display part circuit 10 display result.
Claims (5)
1. amorphous alloy flow sensor, it is characterized in that comprising socket cover, sensing probe, housing, preceding water conservancy diversion support, back water conservancy diversion support, rotor and the bearing of sleeve and top thereof, sensing probe is sealed in the socket cover of sleeve and top thereof, and sleeve and socket cover are fixed in the top of housing; Housing is a circular hollow pipeline, and its two ends are separately installed with preceding water conservancy diversion support, back water conservancy diversion support, and preceding water conservancy diversion support and back water conservancy diversion support are provided with the pit of the bearing that rotor is installed; Described sensing probe is made of coil, amorphous iron core, permanent magnet, and on the amorphous iron core excircle, permanent magnet places amorphous iron core and coil top to coil in the mode of spiral; Before water conservancy diversion support and back water conservancy diversion support be three-legged support, the part that they head-on contacts with fluid is all with arc transition, the support inboard all has the pit that is used to lay bearing, its big or small and selected bearing mates.
2. amorphous alloy flow sensor according to claim 1 is characterized in that rotor is T-shaped, straight plate shape or spirality.
3. amorphous alloy flow sensor according to claim 2 is characterized in that spinner blade is a screw type blade construction, and its interlobate registration is 1.1-1.2, and rotor is supported by left and right sides two bearings and be fixing, adopts interference fit between rotor and bearing.
4. amorphous alloy flow sensor according to claim 3 is characterized in that described permanent magnet is to be the strong magnetic of oblate neodymium iron boron.
5. amorphous alloy flow sensor according to claim 4 is characterized in that described amorphous iron core is by the Fe-based amorphous soft Ci alloy rectangular parallelepiped that synusia is formed by stacking after micritization is handled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101233856A CN100424473C (en) | 2006-11-07 | 2006-11-07 | Amorphous alloy flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101233856A CN100424473C (en) | 2006-11-07 | 2006-11-07 | Amorphous alloy flow sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1952606A CN1952606A (en) | 2007-04-25 |
| CN100424473C true CN100424473C (en) | 2008-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101233856A Expired - Fee Related CN100424473C (en) | 2006-11-07 | 2006-11-07 | Amorphous alloy flow sensor |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101829715B1 (en) * | 2010-08-16 | 2018-02-19 | 보르그워너 인코퍼레이티드 | Bearing housing of an exhaust-gas turbocharger |
| US9353760B2 (en) | 2012-08-17 | 2016-05-31 | Borg Warner Inc. | Speed sensor insert with bearing spacer indexing for a turbocharger |
| CN103267361A (en) * | 2013-04-17 | 2013-08-28 | 浙江长兴奥利尔家用电器有限公司 | Water pipe connector of water heater |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3680379A (en) * | 1969-12-02 | 1972-08-01 | Halliburton Co | Magnetic pickup element adapter for flowmeters |
| US3878718A (en) * | 1972-07-27 | 1975-04-22 | Tokico Ltd | Turbine-type flowmeter |
| CN2449196Y (en) * | 2000-10-27 | 2001-09-19 | 郭玉钦 | Fuel filling computerized tester |
| CN2459622Y (en) * | 2001-01-08 | 2001-11-14 | 庞庆发 | Small flow meter |
| CN2537980Y (en) * | 2002-03-22 | 2003-02-26 | 哈尔滨志阳汽车电气股份有限公司 | Magnetoelectric automobile speed sensor |
| CN1712907A (en) * | 2005-07-13 | 2005-12-28 | 吉林大学 | Turbine electromagnetic flowmeter with low starting output volume |
-
2006
- 2006-11-07 CN CNB2006101233856A patent/CN100424473C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3680379A (en) * | 1969-12-02 | 1972-08-01 | Halliburton Co | Magnetic pickup element adapter for flowmeters |
| US3878718A (en) * | 1972-07-27 | 1975-04-22 | Tokico Ltd | Turbine-type flowmeter |
| CN2449196Y (en) * | 2000-10-27 | 2001-09-19 | 郭玉钦 | Fuel filling computerized tester |
| CN2459622Y (en) * | 2001-01-08 | 2001-11-14 | 庞庆发 | Small flow meter |
| CN2537980Y (en) * | 2002-03-22 | 2003-02-26 | 哈尔滨志阳汽车电气股份有限公司 | Magnetoelectric automobile speed sensor |
| CN1712907A (en) * | 2005-07-13 | 2005-12-28 | 吉林大学 | Turbine electromagnetic flowmeter with low starting output volume |
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| Publication number | Publication date |
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| CN1952606A (en) | 2007-04-25 |
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Granted publication date: 20081008 Termination date: 20141107 |
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