CN201740549U - High-precision trace flowmeter - Google Patents
High-precision trace flowmeter Download PDFInfo
- Publication number
- CN201740549U CN201740549U CN2010201620259U CN201020162025U CN201740549U CN 201740549 U CN201740549 U CN 201740549U CN 2010201620259 U CN2010201620259 U CN 2010201620259U CN 201020162025 U CN201020162025 U CN 201020162025U CN 201740549 U CN201740549 U CN 201740549U
- Authority
- CN
- China
- Prior art keywords
- tubular cavity
- cavity body
- conical tubular
- measurement
- magnetic induction
- 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
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a high-precision trace flowmeter comprising a conical tubular cavity body, wherein the conical tubular cavity body is internally provided with a floater capable of moving up and down along with the size of medium flow; the two ends of the conical tubular cavity body are fixed by a fastener; and the high-precision trace flowmeter is characterized in that the floater is provided with a magnet, and the conical tubular cavity body is externally provided with a magnetic induction Hall sensing element. In the utility model, the floater generates vertical displacement after being pushed by the flowing action force of the fluid medium so as to enable the non-contact type magnetic induction linear Hall sensing element outside the conical tubular cavity body to receive a displacement signal, thus greatly reducing the measurement errors. The high-precision trace flowmeter is wide in application range of flow, can be applied to measurement range of small flow, and widely applied to measurement in petroleum and impurity fluid, and also can be applied in measurement of non-conductive mediums, such as gases, liquid and the like.
Description
[technical field]
The utility model relates to a kind of instrument of liquid material flow metering, particularly a kind of high precision micro flowmeter.
[background technology]
Target type meter of the prior art generally comprises target sheet, target bar, sensor, signal processor and display device etc., and its adopts force cell to measure that fluid produces the target sheet.When flowing, medium produces kinetic energy in measuring tube, during by the target sheet it there is an acting force, the transmitter that this acting force is constituted by the stress equilibrium bridge of being made up of power induction foil gauge, become the elastic deformation signal that send stressed and lever target bar of target plate or stress tube, by the lever other end contact force cell or condenser type force cell or sensor are installed again, give microprocessor with electrical signal transfer, by microprocessor result of calculation is reached display again and show.The major defect that the target type meter of this structure exists is:
1) the part-structure spare that participates in strain detecting will doublely be done mechanical sealing element simultaneously, because of experiencing the fluid flow forces frequent deformation, causes seal wear at work, leakage phenomenon occurs, and security performance is low;
2) quite complicated the interference greatly of pressure condition of bearing detected fluid owing to strain test element, just becoming the error that is difficult in the measurement structure eliminate disturbs, cause measuring error to strengthen, foil gauge is installed and is difficult to guarantee to be leveled up and down and left-right symmetric for another example, influences measuring accuracy;
3) the target bar transmits the stressed variation of target plate with lever construction, makes target plate produce angular displacement and moves, and causes target plate and rate of flow of fluid direction out of plumb, and this self structure defective has caused its measuring accuracy to be difficult to improve.In addition, the flexible member that adopts in the flowmeter be foil its be subjected to the pressure influence of medium, especially foil easily produces abnormal deformation under the high-pressure work state, causes influencing measuring accuracy.
So in sum, though target type meter of the prior art has wider range of application, the flowmeter survey error is big, precision is low, poor safety performance owing to the defective in self constructing has caused, thereby is unsuitable for the low discharge measurement range.
[summary of the invention]
Technical problem to be solved in the utility model is to overcome existing defective in the above-mentioned prior art, and a kind of high precision micro flowmeter is provided.
The utility model has adopted following technical proposal to solve its technical matters: a kind of high precision micro flowmeter, comprise a tapered tubular cavity, be equipped with a float that can move up and down with the rate-of flow size in this tapered tubular cavity, tapered tubular cavity two ends fastener is fixed, it is characterized in that: be equipped with magnet on this float, outside the tapered tubular cavity, be equipped with a magnetic induction hall sensor.
The utility model compared with prior art has tangible advantage and good effect, float in the flowmeter by the mobilization of fluid media (medium) try hard to recommend moving after, produce perpendicular displacement, make the linear Hall element of the outer contactless magnetic induction of tapered tubular cavity receive displacement signal, thereby measuring error is reduced greatly.The flow range that the utility model is suitable for is wide, can be suitable for the low discharge measurement range, is widely used in the measurement in petroleum-type, the impurity fluid, also can be applicable to the measurement of nonconductor medium such as gas, liquid etc.
[description of drawings]
Accompanying drawing is the utility model structural representation;
Each sequence number is expressed as respectively among the figure:
1-tapered tubular cavity; The 2-float; The 3-magnet;
4-magnetic induction hall sensor; The 5-securing member; A-media flow direction.
[embodiment]
The utility model will be further described below in conjunction with embodiment and accompanying drawing.
With reference to accompanying drawing, the utility model comprises a tapered tubular cavity 1, is equipped with a float 2 that can move up and down with the rate-of flow size in this tapered tubular cavity 1, and tapered tubular cavity 1 two ends fastener 5 is fixed.Be equipped with magnet 3 on this float 2, outside tapered tubular cavity 1, be equipped with a magnetic induction hall sensor 4.Described magnetic induction hall sensor 4 put with corresponding tubular housing 1 outer wall of the direction of motion of float 2 upper magnets 3 on, promptly parallel with media flow direction a-.
The medium that flows in the tubular housing described in the utility model 1 makes it produce displacement on its kinetic energy effect float 2, thereby the magnet 3 on the float 2 produces displacements with respect to magnetic induction hall sensor 4, and this displacement signal is become electric signal delivers to the secondary table.Can adorn the positive technology of eight shed repairs on the secondary table, measuring accuracy is improved greatly, and can connect the 4-20MG standard meter signal is exported.
Claims (2)
1. high precision micro flowmeter, comprise a tapered tubular cavity, be equipped with a float that can move up and down with the rate-of flow size in this tapered tubular cavity, tapered tubular cavity two ends fastener is fixed, it is characterized in that: be equipped with magnet on this float, outside the tapered tubular cavity, be equipped with a magnetic induction hall sensor.
2. a kind of high precision micro flowmeter according to claim 1 is characterized in that: described magnetic induction hall sensor put with the corresponding tubular housing outer wall of float upper magnet direction of motion on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201620259U CN201740549U (en) | 2010-04-17 | 2010-04-17 | High-precision trace flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201620259U CN201740549U (en) | 2010-04-17 | 2010-04-17 | High-precision trace flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201740549U true CN201740549U (en) | 2011-02-09 |
Family
ID=43555825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201620259U Expired - Fee Related CN201740549U (en) | 2010-04-17 | 2010-04-17 | High-precision trace flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201740549U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907171A (en) * | 2017-12-22 | 2018-04-13 | 中山市晶威电子科技有限公司 | A kind of flow sensor |
| DE102021101227A1 (en) | 2021-01-21 | 2022-07-21 | Diehl Aviation Gilching Gmbh | water tank |
-
2010
- 2010-04-17 CN CN2010201620259U patent/CN201740549U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907171A (en) * | 2017-12-22 | 2018-04-13 | 中山市晶威电子科技有限公司 | A kind of flow sensor |
| CN107907171B (en) * | 2017-12-22 | 2024-04-16 | 中山市晶威电子科技有限公司 | Flow sensor |
| DE102021101227A1 (en) | 2021-01-21 | 2022-07-21 | Diehl Aviation Gilching Gmbh | water tank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2906546Y (en) | Concrete built-in type strain measurement sensor | |
| CN101603846A (en) | Target type flowmeter of non-contact type displacement sensor | |
| WO2012071761A1 (en) | Accurate measuring and metering method and device via liquid level variable of hydraulic container or oil cylinder | |
| CN110455354B (en) | Cantilever beam strain sensing type flow velocity and flow measurement device and application method thereof | |
| CN104296896A (en) | Direct reading type rock bolt dynamometer used for simulation test and working method thereof | |
| CN201740549U (en) | High-precision trace flowmeter | |
| CN201740548U (en) | High-precision quantum flowmeter | |
| CN202648754U (en) | High-viscosity medium liquid level measuring device | |
| CN105465101A (en) | Internal leakage detection equipment and device for hydraulic oil cylinder | |
| CN203224404U (en) | Measuring device of test specimen deformation in high pressure water environment | |
| CN2837795Y (en) | Translation and target type flowmeter | |
| CN102967347A (en) | Level gauge calibration device | |
| CN108267118B (en) | Strain type intelligent inclinometer | |
| CN201532232U (en) | Buoy liquidometer of barrel elastic element | |
| CN115727923A (en) | Strain liquid level sensor | |
| CN201387309Y (en) | Aperture measuring device of shallow hole | |
| CN211504473U (en) | Soil pressure sensor | |
| CN203758549U (en) | Capacitive sensor used for simultaneously obtaining inclination angle and liquid level of container | |
| CN210565476U (en) | Hydraulic pipeline's oil measurement indicator that comes | |
| CN204226346U (en) | A kind of hydraulic jack internal leakage detection facility and device | |
| CN203745124U (en) | Pressure difference measurement device | |
| CN208999356U (en) | A kind of device that analog mechanical sealing is distributed with lubricating film | |
| CN203629620U (en) | Metallic rotor flowmeter of inlaid spring device of measuring pipe | |
| CN112362896A (en) | Flow velocity detection device based on magnetic material coupling | |
| CN101598586B (en) | MEMS technology based micro liquid level metering device and method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FUJIAN TIANZONG AUTOMATIC CONTROL TECHNOLOGY HOLDI Free format text: FORMER OWNER: QIU GUOXIONG Effective date: 20120521 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201414 FENGXIAN, SHANGHAI TO: 364200 LONGYAN, FUJIAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120521 Address after: 364200 Fujian province Fujian Industrial Park in Shanghang metro area H7-03 whangee Patentee after: Automatic control of Polytron Technologies Inc Fujian yumingbao Address before: 201414, 185, industrial garden east road, Zhu Qing town, Shanghai, Fengxian District Patentee before: Qiu Guoxiong |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20140417 |