CN209131743U - A kind of novel suspended body flowmeter - Google Patents
A kind of novel suspended body flowmeter Download PDFInfo
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- CN209131743U CN209131743U CN201821624583.5U CN201821624583U CN209131743U CN 209131743 U CN209131743 U CN 209131743U CN 201821624583 U CN201821624583 U CN 201821624583U CN 209131743 U CN209131743 U CN 209131743U
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- float
- magnet steel
- measurement pipe
- magnetoresistive sensor
- shell
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Abstract
The utility model relates to a kind of novel suspended body flowmeters, including shell, taper measurement pipe, circuit board and float, the taper measurement pipe is arranged in shell, the float is arranged in taper measurement pipe, and it can be moved up and down in taper measurement pipe, the circuit board is arranged between shell and taper measurement pipe, the circuit board is equipped with magnetoresistive sensor, magnet steel is equipped in the float, the magnetoresistive sensor is matched with the position of magnet steel, so that the magnetic induction line of magnet steel passes perpendicularly through magnetoresistive sensor.The flow of fluid is different, float can be made to be in different height, since float can only move up and down in taper measurement pipe, so mobile path is fixed, the magnetic flux that same position passes through magnetoresistive sensor is also certain, therefore the position of magnet steel in float can be calculated according to the magnetic flux detected, and then accurately calculate the size of fluid flow.Due to there is no float linkage mechanism, driving error not will cause, structure is simple, and precision is high, at low cost.
Description
Technical field
The utility model relates to technical field of measuring equipment, more particularly to a kind of novel suspended body flowmeter.
Background technique
Suspended body flowmeter is used to measure the uninterrupted of fluid in pipeline.With the variation of fluid flow in measurement pipe, survey
Float in buret moves up, and the gravity of the buoyancy suffered by a certain position float and float reaches balance, to measure
Uninterrupted.It common are magnetic coupling suspended body flowmeter, this flowmeter is equipped with magnet rotor outside Taper Pipe, by magnet rotor and floats
Magnet coupling in son attracts the angular displacement that the displacement of the lines of float is converted to rotor, then with angular transducer corresponding angle position
Shifting becomes corresponding discharge and shows, and location variation is converted into angle variable quantity can generate nonlinearity erron, complicated in mechanical structure,
Poor anti jamming capability；Some collectively constitutes signal using the permanent magnet and waveguide filament and electronic signal process box that set in float and turns
Changing device carrys out a kind of measurement of discharge (magnetic displacement flow as disclosed in the Chinese patent document that Authorization Notice No. is CN202710115U
Meter), this structure is complex；Also have that (such as Authorization Notice No. is using multiple spot hall sensing float internal magnet position
A kind of magnetic displacement flowmeter based on hall principle disclosed in the Chinese patent document of CN207248258U), this multiple spot Hall
Although cost is not high, precision is poor.Generally, current suspended body flowmeter, the simple measurement accuracy of structure is poor, surveys
The high general structure of accuracy of measurement is again more complicated.
Utility model content
The purpose of this utility model is to provide a kind of structures simply, the suspended body flowmeter that precision is higher, novel, especially suitable
It shares in the flow of measurement air, medical oxygen, industrial gasses or other fluids.
Technical solution provided by the utility model are as follows: a kind of novel suspended body flowmeter, including shell, taper measurement pipe,
Circuit board and float, the taper measurement pipe are arranged in shell, and the float is arranged in taper measurement pipe, and can be in taper
It is moved up and down in measurement pipe, the circuit board is arranged between shell and taper measurement pipe, and the circuit board is passed equipped with magnetic resistance
Sensor, the float is interior to be equipped with magnet steel, and the magnetoresistive sensor is matched with the position of magnet steel, so that the magnetic induction line of magnet steel is vertical
Across magnetoresistive sensor.
Wherein, the magnet steel is cylindrical body, the center line of the magnetoresistive sensor horizontal direction alignment magnet steel.
Wherein, the shell is closed transparent shell.
Wherein, distance of the magnetoresistive sensor apart from magnet steel position of center line is 8mm.
The utility model has the following beneficial effects: being equipped with magnet steel in the float of the suspended body flowmeter, set on the circuit board
There is magnetoresistive sensor, the magnetoresistive sensor is matched with the position of magnet steel, and the magnetic induction line of magnet steel passes perpendicularly through magnetoresistive sensor,
The flow of fluid is different, and float can be made to be in different height, since float can only move up and down in taper measurement pipe, so
Mobile path be it is fixed, the magnetic flux that same position passes through magnetoresistive sensor is also certain, therefore can be according to detecting
Magnetic flux calculate the position of magnet steel in float, and then accurately calculate the size of fluid flow.The utility model and tradition
Magnetic coupling suspended body flowmeter compared to being there is no float linkage mechanism, not will cause driving error；With waveguide filament suspended body flowmeter
It compares, the range-measuring circuit of no waveguide filament structure and complexity, cost is lower；It is passed compared with multiple spot hall rotameter without multichannel
Sensor, structure is simpler, and precision is higher.
Detailed description of the invention
Fig. 1 is the sectional view of novel suspended body flowmeter embodiment described in the utility model；
Fig. 2 is the sectional view that float is in different location in novel suspended body flowmeter embodiment described in the utility model.
Wherein, 1, shell；2, taper measurement pipe；3, circuit board；31, magnetoresistive sensor；4, float；41, magnet steel.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As the embodiment of novel suspended body flowmeter described in the utility model, as depicted in figs. 1 and 2, including shell 1,
Taper measurement pipe 2, circuit board 3 and float 4, the taper measurement pipe 2 are arranged in shell 1, and the setting of float 4 is surveyed in taper
In buret 2, and it can be moved up and down in taper measurement pipe 2, the circuit board 3 is arranged between shell 1 and taper measurement pipe 2,
The circuit board 3 is equipped with magnetoresistive sensor 31, and magnet steel 41, the magnetoresistive sensor 31 and magnet steel 41 are equipped in the float 4
Position match so that the magnetic induction line of magnet steel 41 passes perpendicularly through magnetoresistive sensor 31.Float 4 and magnet steel 41 be it is fixed, two
Person is an entirety.Taper measurement pipe 2 is the conduit that float 4 moves up and down.
As shown in Figure 1, float 4 is in bottom when not having gas, 41 position of magnet steel is A1, magnetoresistive sensor at this time
31 magnetic field strengths sensed are B1；As shown in Fig. 2, will push float 4 when gas passes through from bottom and up move, when pushing away
When power and float gravity reach balance, 41 position of magnet steel is A2 at this time, and the magnetic field strength that magnetoresistive sensor 31 senses is B2, B2
≠ B1, the height of the current location A2 is calculated by B2, and then calculates the size of present fluid flow.
The flow of fluid is different, and float 4 can be made to be in different height, due to float 4 can only be in taper measurement pipe 2 on
Lower movement, thus mobile path be it is fixed, the magnetic flux that same position passes through magnetoresistive sensor 31 is also certain, therefore can
To calculate the position of magnet steel 41 in float according to the magnetic flux detected, and then accurately calculate the size of fluid flow.This
Utility model is not have float linkage mechanism compared with traditional magnetic coupling suspended body flowmeter, not will cause driving error；With wave
Seal wire suspended body flowmeter is compared, the range-measuring circuit of no waveguide filament structure and complexity, and cost is lower；With multiple spot hall rotameter
Compared to multiple sensor is not necessarily to, structure is simpler, and precision is higher.
In the present embodiment, the magnet steel 41 is cylindrical body, 31 horizontal direction of the magnetoresistive sensor alignment magnet steel 41
Center line.The magnetic induction line of magnet steel 41 passes perpendicularly through magnetoresistive sensor 31 at this time.
In the present embodiment, the shell 1 is closed transparent shell, facilitates observation internal flow situation, and range estimation
Uninterrupted.
In the present embodiment, distance of the magnetoresistive sensor 31 apart from 41 position of center line of magnet steel is 8mm.Due to using
The precision of magnetoresistive sensor 31 be ± 0.4 degree, according to trigonometric function relationship, can show that height error is ± 0.056mm, measure
Precision is higher.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (1)
1. a kind of novel suspended body flowmeter, which is characterized in that including shell, taper measurement pipe, circuit board and float, the cone
Shape measurement pipe is arranged in shell, and the float is arranged in taper measurement pipe, and can move up and down in taper measurement pipe, institute
It states circuit board to be arranged between shell and taper measurement pipe, the circuit board is equipped with magnetoresistive sensor, is equipped in the float
Magnet steel, the magnetoresistive sensor are matched with the position of magnet steel, so that the magnetic induction line of magnet steel passes perpendicularly through magnetoresistive sensor, it is described
Magnet steel is cylindrical body, and the center line of the magnetoresistive sensor horizontal direction alignment magnet steel, the shell is closed transparent shell,
Distance of the magnetoresistive sensor apart from magnet steel position of center line is 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821624583.5U CN209131743U (en) | 2018-09-30 | 2018-09-30 | A kind of novel suspended body flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821624583.5U CN209131743U (en) | 2018-09-30 | 2018-09-30 | A kind of novel suspended body flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209131743U true CN209131743U (en) | 2019-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821624583.5U Active CN209131743U (en) | 2018-09-30 | 2018-09-30 | A kind of novel suspended body flowmeter |
Country Status (1)
| Country | Link |
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| CN (1) | CN209131743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811622A (en) * | 2020-06-02 | 2020-10-23 | 杭州电子科技大学 | Magnetic suspension float flowmeter |
-
2018
- 2018-09-30 CN CN201821624583.5U patent/CN209131743U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811622A (en) * | 2020-06-02 | 2020-10-23 | 杭州电子科技大学 | Magnetic suspension float flowmeter |
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