CN201653469U - Magnetic suspension photoelectric scanning type flow instrument - Google Patents
Magnetic suspension photoelectric scanning type flow instrument Download PDFInfo
- Publication number
- CN201653469U CN201653469U CN 200920317910 CN200920317910U CN201653469U CN 201653469 U CN201653469 U CN 201653469U CN 200920317910 CN200920317910 CN 200920317910 CN 200920317910 U CN200920317910 U CN 200920317910U CN 201653469 U CN201653469 U CN 201653469U
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- magnetic
- flow
- suspension
- circuit
- photoelectric scanning
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Abstract
The utility model relates to a flow instrument, in particular to a magnetic suspension photoelectric scanning type flow instrument, at least comprising a casing and a conical pipe and a floater which are arranged in the casing. The magnetic suspension photoelectric scanning type flow instrument is characterized in that the casing comprises an inner casing and an outer casing, between which a magnetic suspension photoelectric scanning circuit is arranged; the conical pipe is arranged in the inner casing and internally provided with a magnetic floater; an outer arm of the inner casing is provided with a flow marker, and the magnetic floater in the conical pipe makes up and down movement; the suspension magnetic photoelectric scanning circuit between the inner casing and the outer casing reads the flow marker of the outer arm of the inner casing, and the magnetic suspension photoelectric scanning circuit converts the read flow marker into flow signals through a processing unit for output. The magnetic suspension photoelectric scanning type flow instrument not only can guarantee the precision of flow, but also simplifies the machining process of the flow instrument.
Description
Technical field
The utility model relates to a kind of flow instrument, particularly magnetic suspension photoelectric scanning flow instrument.
Background technology
Existing float flowmeter is made up of vertical taper pipe and a float group that moves up and down along the Taper Pipe axle of a bottom-up expansion.When detected fluid is passed through the annular space of Taper Pipe and float formation from bottom to top, the float upper and lower side produces differential pressure and forms the power that float rises, when the suffered raising force of float when being immersed in the fluid float weight, float just rises, and the annular space area increases thereupon, and annular space place rate of flow of fluid descends immediately, float upper and lower side differential pressure reduces, the raising force that acts on float is also along with minimizing, and when raising force equaled to be immersed in the fluid float weight, float just was stabilized in a certain height.Float height and flow of passing through in Taper Pipe have corresponding relation.The flow number majority is an indicator formula structure in this instrument, adopt and digitally then read by magnetic reading head by the magnetic position in the float, show by processing of circuit, because magnetic position is limited by the magnetic reading head conversion accuracy, influenced the precision of float flowmeter, the highest design is in the precision of 1 grade of table.
Summary of the invention
The purpose of this utility model provides the high magnetic suspension photoelectric scanning flow instrument of a kind of precision.
The purpose of this utility model is achieved in that magnetic suspension photoelectric scanning flow instrument, which comprises at least: tapered tube and float in housing, the housing, and it is characterized in that: housing comprises inner and outer shell, the shell body annular seal space has the magnetic-suspension optoelectronic scanning circuit; Tapered tube is in inner housing, the magnetic float is arranged in the tapered tube, the inner housing outer arm has the flow mark, magnetic float in the tapered tube moves up and down, magnetic-suspension optoelectronic scanning circuit between the inner and outer shell reads the flow mark of inner housing outer arm, and the magnetic-suspension optoelectronic scanning circuit converts the flow mark that reads to flow signal by processing unit and exports.
The flow mark of described inner housing outer arm is the linear marker.
The flow mark right and wrong linear marker of described inner housing outer arm.
The flow mark of described inner housing outer arm is a Gray code.
Described magnetic-suspension optoelectronic scanning circuit comprises that photoelectricity reads circuit, battery and processor, and the flow value that processor will read and handle sends to secondary instrument by the photoelectric yield circuit.
[0009]Described processor is electrically connected with radio circuit, and the flow information that processor will read and handle sends to secondary instrument by radio circuit.
Described processor is electrically connected with light emitting diode, and the flow information that processor will read and handle sends to the input end of fiber coupler by light emitting diode, is sent to secondary instrument by optical fiber again.
The utility model has the advantages that: because the inner housing outer arm has the flow mark, tapered tube is the magnetic float, it between the inner and outer shell magnetic-suspension optoelectronic scanning circuit, during fluctuations in discharge, the magnetic float moves up and down at tapered tube, read the flow mark of inner housing outer arm, the magnetic-suspension optoelectronic scanning circuit converts the flow mark that reads to flow signal by processing unit and exports.And the flow mark adopts Gray code, and the flow mark can be linear marker or non-linear mark.Read by the magnetic-suspension optoelectronic scanning circuit at last and carry out secondary treating, precision that can not only dependable flow, and simplified the processing technology of flowmeter.
Description of drawings
The utility model is described in further detail below in conjunction with the embodiment accompanying drawing:
Fig. 1 is the utility model example structure synoptic diagram;
Fig. 2 is the circuit theory diagrams of magnetic-suspension optoelectronic scanning circuit band fiber coupler;
Fig. 3 is the circuit theory diagrams that the magnetic-suspension optoelectronic scanning circuit has radio circuit.
Among the figure: 1, inner housing; 2, magnet ring; 3, shell body; 4, backstay; 5, fluid flow pass; 6, magnetic-suspension optoelectronic scanning circuit; 7, tapered tube; 8, inner and outer shell annular seal space; 9, magnetic float; 10, locating rack; 11, luminotron; 12, fiber coupler; 13, optical fiber; 14, radio-frequency transmissions circuit; 15, Gray code flow mark; 16, photoelectricity reads circuit; 17, battery; 18, processor; 19, bias light light emitting diode; 20, photoelectric receiving tube; 21, outer timing circuit; 22, secondary instrument; 23, radio-frequency (RF) receiving circuit.
Embodiment
As shown in Figure 1, magnetic suspension photoelectric scanning flow instrument, the housing of flow instrument comprise inner housing 1 and shell body 3, and magnetic-suspension optoelectronic scanning circuit 6 is arranged between the inner and outer shell annular seal space; Magnetic-suspension optoelectronic scanning circuit 6 is fixed in the annular casing, and annular casing upper end or lower end be magnet ring 2 fixedly, and inner housing 1 outer arm has Gray code flow mark 15, and Gray code flow mark 15 can be linear marker's flow, also can right and wrong linear marker flow.At inner housing 1 internal fixation tapered tube 7, magnetic float 9 is arranged in the tapered tube 7, when flow passes through, magnetic float 9 in tapered tube 7 on or move down, form the gap between magnetic float 9 and the tapered tube 7, the size in gap is relevant with flow, and fluid flows out gap length and Gray's encoding stream amount mark 15 corresponding (linear or non-linear corresponding) by fluid flow pass 5.Read the Gray code flow mark 15 of inner housing outer arm by the magnetic-suspension optoelectronic scanning circuit 6 between the inner and outer shell, magnetic-suspension optoelectronic scanning circuit 6 converts the flow mark that reads to flow signal by processing unit and exports.In order to make magnetic float 9 be in position balanced in the tapered tube 7 always, magnetic float 9 has backstay 4 up and down, and backstay 4 is positioned in the slideway of locating rack 10, and locating rack 10 can not influence fluid and flow.The magnet ring supporting with magnetic float 9 arranged at magnetic-suspension optoelectronic scanning circuit 6 bottom that suspends, when magnetic float 9 moves up and down, and the Gray code flow mark 15 of magnetic-suspension optoelectronic scanning circuit 6 scanning inner housing outer arms.
Fig. 2 is magnetic-suspension optoelectronic scanning circuit 6 circuit theory diagrams that pass through optical fiber 13 to secondary table delivery rate information, magnetic-suspension optoelectronic scanning circuit 6 comprises that photoelectricity reads circuit 16, battery 17 and processor 18(single-chip microcomputer EM78P458), single-chip microcomputer EM78P458I/O mouth is electrically connected with photoelectricity and reads circuit 16, photoelectricity reads circuit 16 and is made up of bias light light emitting diode 19 and photoelectric receiving tube 20, bias light light emitting diode 19 is worked luminous when reading Gray code flow mark 15, cavity between inner housing 1 and shell body 3 provides light intensity, photoelectric receiving tube 20 is corresponding one by one with Gray's encoding stream amount mark 15 each sign indicating number, during bias light light emitting diode 19 luminous (work following time of 100US), single-chip microcomputer EM78P458 reads the intensity signal of each photoelectric receiving tube 20 by the I/O mouth of correspondence, the value of reading is 1 during for high level, and the value of reading is that 0(also can be on the contrary during for low level).At last the flow information that reads is sent to fiber coupler 12 on the shell body 3 by infraluminescence pipe 11, send to secondary instrument 22 by optical fiber 13 again.
Fig. 3 is magnetic-suspension optoelectronic scanning circuit 6 circuit theory diagrams that pass through the radio-frequency transmissions circuit to secondary table delivery rate information, magnetic-suspension optoelectronic scanning circuit 6 comprises that photoelectricity reads circuit 16, battery 17 and processor 18(single-chip microcomputer EM78P458), single-chip microcomputer EM78P458I/O mouth is electrically connected with photoelectricity and reads circuit 16, photoelectricity reads circuit 16 and is made up of bias light light emitting diode 19 and photoelectric receiving tube 20, bias light light emitting diode 19 is worked luminous when reading Gray code flow mark 15, cavity between inner housing 1 and shell body 3 provides light intensity, photoelectric receiving tube 20 is corresponding one by one with Gray's encoding stream amount mark 15 each sign indicating number, during bias light light emitting diode 19 luminous (work following time of 100US), single-chip microcomputer EM78P458 reads the intensity signal of each photoelectric receiving tube 20 by the I/O mouth of correspondence, the value of reading is 1 during for high level, and the value of reading is that 0(also can be on the contrary during for low level).At last the flow information that reads is sent to radio-frequency (RF) receiving circuit 23 by radio-frequency transmissions circuit 14, be electrically connected with secondary instrument 22 by interface, show flow by secondary instrument 22 by radio-frequency (RF) receiving circuit 23.
Because single-chip microcomputer EM78P458 can not work under continuous duty, power consumption is big like this, and the electric current that is provided by battery 17 can run out of under the very short time, therefore, single-chip microcomputer EM78P458 carries out with periodic working method, and every 0.1S-1S works once, each working time 200US.Can keep long work like this, adopt 3.6V/2A as battery 17, but the flowmeter continuous working be more than 3 years.Guarantee that single-chip microcomputer EM78P458 timing working is provided the timing of 0.1S-1S by the outer timing circuit 21 that is electrically connected.
Claims (5)
1. magnetic suspension photoelectric scanning flow instrument which comprises at least: tapered tube and float in housing, the housing, and it is characterized in that: housing comprises inner and outer shell, and magnetic-suspension optoelectronic scanning circuit (6) is arranged between the inner and outer shell; Tapered tube (7) is in inner housing (1), magnetic float (9) is arranged in the tapered tube (7), inner housing (1) outer arm has the flow mark, magnetic float (9) in the tapered tube (7) moves up and down, magnetic-suspension optoelectronic scanning circuit (6) between the inner and outer shell reads the flow mark of inner housing (1) outer arm, and magnetic-suspension optoelectronic scanning circuit (6) converts the flow mark that reads to flow signal by processing unit and exports.
2. magnetic suspension photoelectric scanning flow instrument according to claim 1 is characterized in that: the flow mark of described inner housing (1) outer arm is the linear marker.
3. magnetic suspension photoelectric scanning flow instrument according to claim 1 is characterized in that: the flow mark right and wrong linear marker of described inner housing (1) outer arm.
4. magnetic suspension photoelectric scanning flow instrument according to claim 1 is characterized in that: the flow mark of described inner housing (1) outer arm is a Gray code.
5. magnetic suspension photoelectric scanning flow instrument according to claim 1, it is characterized in that: described magnetic-suspension optoelectronic scanning circuit (6) comprises that photoelectricity reads circuit (16), battery (17) and processor (18), and the flow value that processor (18) will read and handle sends to secondary instrument (22) by the photoelectric yield circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920317910 CN201653469U (en) | 2009-12-20 | 2009-12-20 | Magnetic suspension photoelectric scanning type flow instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920317910 CN201653469U (en) | 2009-12-20 | 2009-12-20 | Magnetic suspension photoelectric scanning type flow instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653469U true CN201653469U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920317910 Expired - Fee Related CN201653469U (en) | 2009-12-20 | 2009-12-20 | Magnetic suspension photoelectric scanning type flow instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201653469U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095477A (en) * | 2010-11-28 | 2011-06-15 | 西安信唯信息科技有限公司 | Design method of magnetic-suspension photoelectric scanning level measurement sensing head |
-
2009
- 2009-12-20 CN CN 200920317910 patent/CN201653469U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095477A (en) * | 2010-11-28 | 2011-06-15 | 西安信唯信息科技有限公司 | Design method of magnetic-suspension photoelectric scanning level measurement sensing head |
| CN102095477B (en) * | 2010-11-28 | 2016-09-14 | 西安信唯信息科技有限公司 | Magnetic suspension photoelectric scanning liquid level measuring sensing head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hebei Zhufeng Instrument & Meter Co., Ltd. Assignor: Xi'an Xinwei Information Science and Technology Co., Ltd. Contract record no.: 2012610000042 Denomination of utility model: Wireless magnetic suspension photoelectric scanning flow instrument Granted publication date: 20101124 License type: Exclusive License Record date: 20120410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20141220 |
|
| EXPY | Termination of patent right or utility model |