CN203719709U - Bidirectional Hall flowmeter - Google Patents
Bidirectional Hall flowmeter Download PDFInfo
- Publication number
- CN203719709U CN203719709U CN201320797554.XU CN201320797554U CN203719709U CN 203719709 U CN203719709 U CN 203719709U CN 201320797554 U CN201320797554 U CN 201320797554U CN 203719709 U CN203719709 U CN 203719709U
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- Prior art keywords
- hall flow
- flow meter
- hall
- circuit
- processor
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Abstract
The utility model discloses a bidirectional Hall flowmeter. The bidirectional Hall flowmeter comprises a first Hall flowmeter, a second Hall flowmeter, a pulse signal processing circuit and a processor, wherein the first Hall flowmeter and the second Hall flowmeter are in reverse series connection, and a signal output terminal of the first Hall flowmeter and a signal output terminal of the second Hall flowmeter are respectively connected with the processor through the pulse signal processing circuit. The two Hall flowmeters are in reverse series connection, so that the flow of liquid of positive and negative flowing directions can be measured by using the two Hall flowmeters; the bidirectional Hall flowmeter is relatively simple in structure, relatively small in size, relatively low in cost, relatively light in weight, easy in operation and easy to carry.
Description
[technical field]
The utility model relates to a kind of two-way Hall flow instrument.
[background technology]
The flowmeter of existing use mainly contains following shortcoming: can only measure one-way flow 1.; 2. volume, weight are larger, have been subject to very big restriction in field applicabilities such as small scale robots; 3. complex structure, is not easy to carry.Install and use also and there are certain requirements; 4. cost is higher.Portable minisize type double flow meter has very large application prospect in small scale robot, the field such as micro electronmechanical.
[summary of the invention]
In order to overcome the deficiencies in the prior art, the utility model provides a kind of two-way Hall flow instrument, and the structure that makes flow instrument is comparatively simple and be easy to carry about with one.
A kind of two-way Hall flow instrument, comprise the first Hall flow meter and the second Hall flow meter, also comprise pulse signal treatment circuit and processor, described the first Hall flow meter and the second Hall flow meter differential concatenation, the signal output part of the signal output part of described the first Hall flow meter and the second Hall flow meter is connected with described processor by described pulse signal treatment circuit respectively.
In one embodiment, described pulse signal treatment circuit comprises buffer circuit and voltage conversion circuit, the signal output part of described the first Hall flow meter is connected with described processor with voltage conversion circuit through described buffer circuit successively, and the signal output part of described the second Hall flow meter is connected with described processor with voltage conversion circuit through described buffer circuit successively.
In one embodiment, described voltage conversion circuit comprises mu balanced circuit and reduction voltage circuit, and described buffer circuit is connected with described processor with reduction voltage circuit by described mu balanced circuit successively.
In one embodiment, also comprise display device, described display device is electrically connected with described processor.
In one embodiment, described the first Hall flow meter is connected by joint with the second Hall flow meter.
By by two Hall flow meter differential concatenations, can utilize two Hall flow meters to measure the fluid flow that both forward and reverse directions flows to, structure is comparatively simple, small volume, cost is lower, and weight is lighter, and processing ease is easy to carry about with one.
[brief description of the drawings]
Fig. 1 is the schematic diagram of the two-way Hall flow instrument of a kind of embodiment of the utility model.
[embodiment]
Below with reference to accompanying drawing, this practical specific embodiment is described in further detail.
As shown in Figure 1, a kind of two-way Hall flow instrument, comprise the first Hall flow meter 21, the second Hall flow meter 22, pulse signal treatment circuit, power supply 5, processor 6 and display device 7, (detection of single Hall flow meter has directivity by joint 1 differential concatenation for described the first Hall flow meter 21 and the second Hall flow meter 22, when flowing through direction that the liquid of Hall flow meter specifies with Hall flow meter when identical, the signal output part of this Hall flow meter can be exported corresponding pulse signal, if fluid flow and this opposite direction, signal output part can output pulse signal), the signal output part 211 of the first Hall flow meter is connected with described processor by described pulse signal treatment circuit respectively with the signal output part 221 of the second Hall flow meter, because the pulse signal of signal output part output contains more noise, or the voltage of pulse signal does not mate with processor, or in the object of conservation treatment device 6, need to be by pulse signal treatment circuit by isolated to processor 6 and Hall flow meter, power supply 5 provides power supply for processor 6 and other circuit.
Processor is added up respectively the pulse signal quantity of two Hall flow meter outputs, can determine which Hall flow meter is in running order, can differentiate the now flow direction of liquid, number of pulses in the unit interval of evaluation work flow meter, corresponding flow velocity form calculates flow, obtains the flow in the unit interval after being multiplied by the time, obtains real-time traffic data by continuous accumulation, show present flow rate value by display device 7, in this process, can flow to positive and negative differentiation.
At one preferably in embodiment, pulse signal signal processing circuit comprises buffer circuit 3 and voltage conversion circuit 4, buffer circuit 3 is for playing electrical isolation effect, the circuit that prevents processor 6 one sides is damaged, and voltage conversion circuit 4 is for voltage of transformation, so that the voltage of processor 6 one sides can be mated, the signal output part 211 of the first Hall flow meter 21 is connected with described processor 6 with voltage conversion circuit 4 through described buffer circuit 3 successively, the signal output part 221 of described the second Hall flow meter 22 is connected with described processor 6 with voltage conversion circuit 4 through described buffer circuit 3 successively.
Particularly, described voltage conversion circuit 4 can comprise that mu balanced circuit and reduction voltage circuit are (because the voltage of the pulse signal of Hall flow meter output is greater than processor in a lot of situation, therefore increase reduction voltage circuit), the signal output part 211 of the first Hall flow meter 21 is connected with described processor 6 with reduction voltage circuit through described buffer circuit 3, mu balanced circuit successively.
Claims (5)
1. a two-way Hall flow instrument, comprise the first Hall flow meter and the second Hall flow meter, it is characterized in that, also comprise pulse signal treatment circuit and processor, described the first Hall flow meter and the second Hall flow meter differential concatenation, the signal output part of the signal output part of described the first Hall flow meter and the second Hall flow meter is connected with described processor by described pulse signal treatment circuit respectively.
2. two-way Hall flow instrument as claimed in claim 1, it is characterized in that: described pulse signal treatment circuit comprises buffer circuit and voltage conversion circuit, the signal output part of described the first Hall flow meter is connected with described processor with voltage conversion circuit through described buffer circuit successively, and the signal output part of described the second Hall flow meter is connected with described processor with voltage conversion circuit through described buffer circuit successively.
3. two-way Hall flow instrument as claimed in claim 2, is characterized in that: described voltage conversion circuit comprises mu balanced circuit and reduction voltage circuit, and described buffer circuit is connected with described processor with reduction voltage circuit by described mu balanced circuit successively.
4. the two-way Hall flow instrument as described in as arbitrary in claim 1-3, is characterized in that: also comprise display device, described display device is electrically connected with described processor.
5. the two-way Hall flow instrument as described in as arbitrary in claim 1-3, is characterized in that: described the first Hall flow meter is connected by joint with the second Hall flow meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320797554.XU CN203719709U (en) | 2013-12-05 | 2013-12-05 | Bidirectional Hall flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320797554.XU CN203719709U (en) | 2013-12-05 | 2013-12-05 | Bidirectional Hall flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203719709U true CN203719709U (en) | 2014-07-16 |
Family
ID=51158849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320797554.XU Expired - Fee Related CN203719709U (en) | 2013-12-05 | 2013-12-05 | Bidirectional Hall flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203719709U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426087A (en) * | 2019-07-16 | 2019-11-08 | 智恒科技股份有限公司 | A kind of positive and negative rotation water flow sensor based on Hall switch |
-
2013
- 2013-12-05 CN CN201320797554.XU patent/CN203719709U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426087A (en) * | 2019-07-16 | 2019-11-08 | 智恒科技股份有限公司 | A kind of positive and negative rotation water flow sensor based on Hall switch |
| CN110426087B (en) * | 2019-07-16 | 2021-07-02 | 智恒科技股份有限公司 | Positive and negative rotation water flow sensor based on Hall switch |
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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 |
Granted publication date: 20140716 Termination date: 20161205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |