CN203191003U - Flow sensor - Google Patents
Flow sensor Download PDFInfo
- Publication number
- CN203191003U CN203191003U CN 201320203741 CN201320203741U CN203191003U CN 203191003 U CN203191003 U CN 203191003U CN 201320203741 CN201320203741 CN 201320203741 CN 201320203741 U CN201320203741 U CN 201320203741U CN 203191003 U CN203191003 U CN 203191003U
- Authority
- CN
- China
- Prior art keywords
- flow sensor
- pulsation
- outer shell
- measurement element
- shell
- 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
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a flow sensor. The flow sensor comprises an outer shell, a magnetic measurement element, a static magnet, a pulsation floater and a dynamic magnet. The vertical outer shell is hollow, the static magnet is installed on the lower portion of the outer shell, the pulsation floater is located in the outer shell and located on the upper portion of the outer shell, the dynamic magnet is internally arranged in the pulsation floater and oppositely arranged with a magnetic pole of the static magnet, and the magnetic measurement element is installed in the outer shell. Preferentially, the end portion, towards the static magnet, of the pulsation floater is in a spear shape. A liquid channel is vertically formed in the outer shell, and the pulsation floater and the dynamic magnet are located in the liquid channel. A power source signal outgoing line is arranged in the outer shell in a penetrated mode and connected with the magnetic measurement element. Sealant is arranged in the outer shell and covers the magnetic measurement element. The magnetic measurement element is a magnetic measurement element or an electromagnetic coil. The outer shell is a metal outer shell. The flow sensor is ingenious in design, concise in structure, high in reliability, capable of accurately detecting liquid flow in a small scope, and applicable to large-scale popularization and application.
Description
Technical field
The utility model relates to the measuring sensor technical field, and particularly sensor technical field specifically refers to a kind of flow sensor.
Background technology
The small amount of flow measuring flow sensor is specifically designed to and measures the per minute number milliliter flows to the tens of milliliters of scopes.The micrometeor control system is existing practical application at aspects such as medical science, pharmacy, analytical instrument and molecular biology, and will be widely used in various aspects such as computing machine, communication, traffic, aerospace in the near future.Miniature low discharge sensor, it plays an important role in the micrometeor control system.And small amount of flow measuring adopted the hot-wire flow sensor in the past, and it utilizes thermistor as heater element and temperature-sensing element (device).Flow measurement range is then rarely found down to tens of milliliters microflow sensor in per minute milliliter level, and is to need very much with urgent.
Therefore, need provide a kind of flow sensor, it is simple for structure, and the reliability height can accurately detect the fluid flow in the small scope.
The utility model content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, and a kind of flow sensor is provided, and this flow sensor design is ingenious, simple for structure, and the reliability height can accurately detect the fluid flow in the small scope, is suitable for large-scale promotion application.
To achieve these goals, flow sensor of the present utility model, be characterized in, comprise shell, magnetic measurement element, magnetostatic body, pulsation float and moving magnet, the vertical hollow of described shell, described magnetostatic body is installed in the bottom of described shell, and described pulsation float is positioned at described shell and is positioned at the top of described shell, described moving magnet be built in the described pulsation float and with the setting of described magnetostatic body magnetic pole opposite, described magnetic measurement element is installed in the described shell.
Preferably, described pulsation float is lance shape towards the end of described magnetostatic body.
Preferably, described flow sensor also comprises fluid passage, and described fluid passage vertically is installed in the described shell, and described pulsation float and described moving magnet are arranged in described fluid passage.
More preferably, described fluid passage is up-narrow and down-wide.
Preferably, described flow sensor also comprises the power supply signal extension line, and described power supply signal extension line wears described shell and connects described magnetic measurement element.
Preferably, described flow sensor also comprises fluid sealant, and described fluid sealant is installed in the described shell and coats described magnetic measurement element.
Preferably, described magnetic measurement element is Hall element or magnetoresistive element or solenoid.
Preferably, described shell is metal shell.
The beneficial effects of the utility model specifically are: flow sensor of the present utility model comprises shell, the magnetic measurement element, magnetostatic body, pulsation float and moving magnet, the vertical hollow of described shell, described magnetostatic body is installed in the bottom of described shell, described pulsation float is positioned at described shell and is positioned at the top of described shell, described moving magnet be built in the described pulsation float and with the setting of described magnetostatic body magnetic pole opposite, described magnetic measurement element is installed in the described shell, design ingenious, simple for structure, the reliability height, can accurately detect the fluid flow in the small scope, be suitable for large-scale promotion application.
Description of drawings
Fig. 1 is the cross-sectional schematic of first specific embodiment of the present utility model.
Embodiment
In order more to be expressly understood technology contents of the present utility model, describe in detail especially exemplified by following examples.
See also shown in Figure 1, flow sensor of the present utility model comprises shell 1, magnetic measurement element 2, magnetostatic body 3, pulsation float 4 and moving magnet 5, described shell 1 vertical hollow, described magnetostatic body 3 is installed in the bottom of described shell 1, described pulsation float 4 is positioned at described shell 1 and is positioned at the top of described shell 1, described moving magnet 5 be built in the described pulsation float 4 and with described magnetostatic body 3 magnetic pole opposite settings, described magnetic measurement element 2 is installed in the described shell 1.
Described pulsation float 4 can have any suitable structure, sees also shown in Figure 1ly, and in specific embodiment of the utility model, described pulsation float 4 is lance shape towards the end of described magnetostatic body 3.
For pilot fluid, see also shown in Figure 1ly, in specific embodiment of the utility model, described flow sensor also comprises fluid passage 6, described fluid passage 6 vertically is installed in the described shell 1, and described pulsation float 4 and described moving magnet 5 are arranged in described fluid passage 6.
Described fluid passage 6 can have any suitable structure, sees also shown in Figure 1ly, and in specific embodiment of the utility model, described fluid passage 6 is up-narrow and down-wide.
In order to transmit signal, see also shown in Figure 1ly, in specific embodiment of the utility model, described flow sensor also comprises power supply signal extension line 7, described power supply signal extension line 7 wears described shell 1 and connects described magnetic measurement element 2.
For fixation, preferably, described flow sensor also comprises fluid sealant 8, and described fluid sealant 8 is installed in the described shell 1 and coats described magnetic measurement element 2.See also shown in Figure 1ly, in specific embodiment of the utility model, described power supply signal extension line 7 wears described fluid sealant 8.
Described magnetic measurement element 2 can be any suitable components, and preferably, described magnetic measurement element 2 is Hall element or magnetoresistive element or solenoid.In specific embodiment of the utility model, described magnetic measurement element 2 is Hall elements.
Described shell 1 can be any suitable shell, and in specific embodiment of the utility model, described shell 1 is metal shell.
When the utility model is installed and used, shell 1 is connected in the passage 9 that will measure, when fluid flows into pulsation float 4, pulsation float 4 overcomes magnetic field thrust and can descend, fluid is to pulsing float 4 lower point drippage down, pulsation float 4 can rise to equilibrium point, pulsation float 4 can circulate up and down with flowing of fluid and pulse, in this process pulsation in the float 4 built-in moving magnet 5 move with the position, the surrounding magnetic field size changes, magnetic measurement element 2 can record the variation in magnetic field, thereby provides the number of drops of fluid, provides the fluid flow value.
At the viscosity degree of various liquid, can design the pulsation float 4 of different fluid passages 6 diameters and different size.
The utility model is a kind of micrometeor test macro, milliliter can obtain measurement result comparatively accurately to tens of milliliters of scopes at the per minute number, can satisfy the application of aspects such as medical science, pharmacy, analytical instrument, molecular biology.
To sum up, flow sensor design of the present utility model is ingenious, simple for structure, and the reliability height can accurately detect the fluid flow in the small scope, is suitable for large-scale promotion application.
In this instructions, the utility model is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (8)
1. flow sensor, it is characterized in that, comprise shell, magnetic measurement element, magnetostatic body, pulsation float and moving magnet, the vertical hollow of described shell, described magnetostatic body is installed in the bottom of described shell, described pulsation float is positioned at described shell and is positioned at the top of described shell, described moving magnet be built in the described pulsation float and with the setting of described magnetostatic body magnetic pole opposite, described magnetic measurement element is installed in the described shell.
2. flow sensor according to claim 1 is characterized in that, described pulsation float is lance shape towards the end of described magnetostatic body.
3. flow sensor according to claim 1 is characterized in that, described flow sensor also comprises fluid passage, and described fluid passage vertically is installed in the described shell, and described pulsation float and described moving magnet are arranged in described fluid passage.
4. flow sensor according to claim 3 is characterized in that, described fluid passage is up-narrow and down-wide.
5. flow sensor according to claim 1 is characterized in that, described flow sensor also comprises the power supply signal extension line, and described power supply signal extension line wears described shell and connects described magnetic measurement element.
6. flow sensor according to claim 1 is characterized in that, described flow sensor also comprises fluid sealant, and described fluid sealant is installed in the described shell and coats described magnetic measurement element.
7. flow sensor according to claim 1 is characterized in that, described magnetic measurement element is Hall element or magnetoresistive element or solenoid.
8. flow sensor according to claim 1 is characterized in that, described shell is metal shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320203741 CN203191003U (en) | 2013-04-19 | 2013-04-19 | Flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320203741 CN203191003U (en) | 2013-04-19 | 2013-04-19 | Flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203191003U true CN203191003U (en) | 2013-09-11 |
Family
ID=49107856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320203741 Expired - Fee Related CN203191003U (en) | 2013-04-19 | 2013-04-19 | Flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203191003U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591994A (en) * | 2013-11-29 | 2014-02-19 | 湖北泽越电子科技有限公司 | High-accuracy flow measuring device not affected by environmental factors |
| US9970793B2 (en) | 2013-12-17 | 2018-05-15 | Shanghai Universoon Autoparts Co., Ltd. | Self-rotating flowmeter having a rotating mechanism including a hollow shaft and a disk having internal flow passages |
| CN108759192A (en) * | 2018-06-20 | 2018-11-06 | 合肥美的电冰箱有限公司 | Break-make detector, refrigeration system, refrigerator and the refrigeration detection method of refrigerating circuit |
| CN112665665A (en) * | 2020-11-27 | 2021-04-16 | 北京电子科技职业学院 | Gas flow sensor |
-
2013
- 2013-04-19 CN CN 201320203741 patent/CN203191003U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591994A (en) * | 2013-11-29 | 2014-02-19 | 湖北泽越电子科技有限公司 | High-accuracy flow measuring device not affected by environmental factors |
| CN103591994B (en) * | 2013-11-29 | 2016-05-11 | 湖北泽越电子科技有限公司 | A kind of high-precision flow measurement mechanism that is not subject to such environmental effects |
| US9970793B2 (en) | 2013-12-17 | 2018-05-15 | Shanghai Universoon Autoparts Co., Ltd. | Self-rotating flowmeter having a rotating mechanism including a hollow shaft and a disk having internal flow passages |
| CN108759192A (en) * | 2018-06-20 | 2018-11-06 | 合肥美的电冰箱有限公司 | Break-make detector, refrigeration system, refrigerator and the refrigeration detection method of refrigerating circuit |
| CN108759192B (en) * | 2018-06-20 | 2020-10-09 | 合肥美的电冰箱有限公司 | On-off detector of refrigeration loop, refrigeration system, refrigerator and refrigeration detection method |
| CN112665665A (en) * | 2020-11-27 | 2021-04-16 | 北京电子科技职业学院 | Gas flow sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203191003U (en) | Flow sensor | |
| CN202599852U (en) | Identification and measurement device of bubbles in gas-liquid two-phase bubble flow | |
| CN205940713U (en) | Magnetic reversing column liquid level gauge | |
| CN201364194Y (en) | Liquid flow test device | |
| CN202836635U (en) | Plastic impeller flow meter | |
| CN104180876B (en) | A kind of flowmeter monitor station | |
| CN203688400U (en) | Variable temperature type viscosity coefficient measurement instrument | |
| CN103472248A (en) | Positioning device and positioning method for electromagnetic current meter | |
| CN204979886U (en) | Liquid storage pot quantitative filling and level control apparatus | |
| CN104406663B (en) | A kind of liquid metal flux demarcates container | |
| CN203981236U (en) | A kind of dispensing device of automatic measurement liquid volume | |
| CN104764503A (en) | Fluid micro-flow automatic metering device | |
| CN101464242B (en) | Method of determining the viscosity of a fluid | |
| CN204594519U (en) | Fluid micro-flux self-measuring device | |
| CN204007801U (en) | A kind of anti-fluctuation magnetic fluid level gauge | |
| CN104748908B (en) | Micro-differential-pressure metering device for high-pressure experiment | |
| CN204594616U (en) | For the micro-pressure-difference measuring apparatus of High-Voltage Experimentation | |
| CN203688180U (en) | Automatic blowby and leakage measuring apparatus for valve | |
| CN106932306A (en) | A kind of oil product kinematic viscosity analyzer | |
| CN107314952B (en) | A kind of method and system measuring dynamic contact angle under extremely low capillary number | |
| CN103675332B (en) | Device and the measuring method of sliding velocity is measured under a kind of microscale | |
| CN202631023U (en) | Novel thermal flowmeter | |
| CN206862854U (en) | A kind of corrosion rate experimental rig for determining metal in Simulated Soil Solution | |
| CN201964907U (en) | Flow measuring device | |
| CN204115783U (en) | Portable tiny flow quantity type suspended body flowmeter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20210419 |