CN205958172U - Wireless pressure transmitter of high accuracy - Google Patents
Wireless pressure transmitter of high accuracy Download PDFInfo
- Publication number
- CN205958172U CN205958172U CN201620879837.2U CN201620879837U CN205958172U CN 205958172 U CN205958172 U CN 205958172U CN 201620879837 U CN201620879837 U CN 201620879837U CN 205958172 U CN205958172 U CN 205958172U
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- China
- Prior art keywords
- pressure
- branch road
- measurement branch
- processing circuit
- high precision
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Abstract
The utility model discloses a wireless pressure transmitter of high accuracy, including processing circuit and a ressure measurement branch road and the two ressure measurement branch road of connection on processing circuit, a ressure measurement branch road and the 2nd ressure measurement branch road all include consecutive pressure sensor, signal conditioning circuit and AD converting circuit, the pressure sensor of a ressure measurement branch road and the 2nd ressure measurement branch road lies in not co -altitude, and it provides hardware architecture the basis for above -mentioned method, and measurement accuracy is high.
Description
Technical field
This utility model is related to pressure transmitter field, in particular it relates to a kind of high precision wireless pressure transmitter.
Background technology
In use, its safety is particularly significant for pressure transmitter, especially has dangerous medium in measurement
In environment, the security performance of instrument must obtain prominent concern.And in the design of pressure transmitter, its wiring is first with electronics
The design of part circuit is paying close attention to a little of Explosion-proof Design.
In the occasion much certainty of measurement being required, especially in hydraulic measurement occasion, will to the precision of pressure transmitter
Ask very high.And existing pressure transmitter, its precision to be improved, often set about or signal processing circuit on pressure transducer
Set about, to improve the precision of pressure detecting.But, with going deep into of research, bottleneck stage has been arrived in the research of these two aspects.
Now, our company works out a kind of method, when measuring hydraulic pressure, by two highly different pressure transducers,
Both differences in height are certain, and that is, in same liquid, both pressure differentials are certain, by the detected value of two pressure transducers to it
Actual measurement difference is judged, if actual measurement difference is equal with original difference, using the detected value of original high stress sensor, if
Actual measurement difference and original difference, then using the difference between actual measurement difference and original difference to original high stress sensor
Detected value revised.Can achieve the high-acruracy survey of detected pressure value based on said method.But, existing wireless pressure becomes
Send device to lack concrete structure said method is supported.
Utility model content
This utility model provides a kind of high precision wireless pressure transmitter to solve above-mentioned technical problem, and it is above-mentioned side
Method provides hardware configuration basis.
The technical scheme in the invention for solving the above technical problem is：
High precision wireless pressure transmitter, including signal processing circuit and the first pressure being connected in signal processing circuit
Measurement branch road and second pressure measurement branch road, described first pressure measurement branch road and second pressure measurement branch road all include phase successively
Pressure transducer even, signal conditioning circuit and A/D change-over circuit, described first pressure measurement branch road and second pressure measurement
The pressure transducer on road is located at differing heights.This programme improves on the architecture basics of existing pressure transmitter, is above-mentioned
Method provides hardware support.Two pressure measxurement branch roads are set, using two pressure measxurement branch roads respectively to different height
The pressure of position measures, and wherein the pressure transducer of a branch road is located at height to be measured.
Preferably, described signal processing circuit includes master controller, the reception of wireless signals being connected on master controller
Circuit.As the core component of wireless pressure transmitter, it provides hardware support for said method to master controller, and wireless signal connects
Receive the reception of circuit realiration wireless signal, realize remote monitoring.
Further, for the ease of wireless pressure transmitter is carried out with manipulation and direct observation, described signal processing circuit
Also include display unit and the control key being connected on master controller.
Preferably, in order to further improve accuracy of detection, described first pressure measurement branch road and second pressure measure
Between the difference in height of the pressure transducer of branch road is located at 1 centimetre to 10 centimetres.Measure in the pressure to liquid differing heights
When, if liquid remains static, the pressure differential of certain altitude is not affected, but, when liquid is not static, and have
During certain mobility, the pressure differential between this height can be impacted, therefore in order to reduce the error that liquid flowing brings, will
First pressure measures the as little as possible of the difference in height setting of pressure transducer of branch road and second pressure measurement branch road, but, mistake
Hour, both it had been not easy to laying of pressure transducer, also do not met above-mentioned data correction thought.
Further, the difference in height of the pressure transducer of described first pressure measurement branch road and second pressure measurement branch road is
4 centimetres.
To sum up, the beneficial effects of the utility model are：
This utility model, on the basis of existing structure, setting up a pressure measxurement branch road, and makes two pressure measxurements
The pressure transducer of branch road is located at different height, its high precision, and provides hardware foundation for said method.
Brief description
Fig. 1 is theory diagram of the present utility model.
Specific embodiment
With reference to embodiment and accompanying drawing, the technical scheme in this utility model embodiment is clearly and completely retouched
State it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on this reality
With the embodiment in new, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of this utility model protection.
Embodiment 1：
A kind of high precision wireless pressure transmitter as shown in Figure 1, includes signal processing circuit and is connected to signal processing
First pressure measurement branch road on circuit and second pressure measurement branch road, described first pressure measurement branch road and second pressure measurement
Branch road all includes pressure transducer, signal conditioning circuit and the A/D change-over circuit being sequentially connected, and described first pressure measures branch road
The pressure transducer measuring branch road with second pressure is located at differing heights.
Signal conditioning circuit mainly includes filter circuit, amplifying circuit etc..
Embodiment 2：
A kind of high precision wireless pressure transmitter as shown in Figure 1, the present embodiment does on the basis of above-described embodiment
Optimize, that is, described signal processing circuit includes master controller, the wireless signal receiving circuit being connected on master controller.
Described signal processing circuit also includes display unit and the control key being connected on master controller.
Embodiment 3：
A kind of high precision wireless pressure transmitter as shown in Figure 1, the present embodiment does on the basis of above-described embodiment
Optimize, that is, the difference in height of the pressure transducer of described first pressure measurement branch road and second pressure measurement branch road is located at 1 centimetre extremely
Between 10 centimetres.
The difference in height that described first pressure measures the pressure transducer of branch road and second pressure measurement branch road is 4 centimetres.When
During using 4 centimetres of difference in height, its certainty of measurement effect is best.
As described above, this utility model can preferably be realized.
Claims (5)
1. high precision wireless pressure transmitter it is characterised in that：Including signal processing circuit and being connected in signal processing circuit
First pressure measurement branch road and second pressure measurement branch road, described first pressure measurement branch road and second pressure measurement branch road equal
Including the pressure transducer being sequentially connected, signal conditioning circuit and A/D change-over circuit, described first pressure measures branch road and second
The pressure transducer of pressure measxurement branch road is located at differing heights.
2. high precision wireless pressure transmitter according to claim 1 it is characterised in that：Described signal processing circuit includes
Master controller, the wireless signal receiving circuit being connected on master controller.
3. high precision wireless pressure transmitter according to claim 2 it is characterised in that：Described signal processing circuit is also wrapped
Include the display unit being connected on master controller and control key.
4. high precision wireless pressure transmitter according to claim 1 it is characterised in that：Described first pressure measures branch road
With second pressure measures the difference in height of the pressure transducer of branch road between 1 centimetre to 10 centimetres.
5. high precision wireless pressure transmitter according to claim 4 it is characterised in that：Described first pressure measures branch road
It is 4 centimetres with the difference in height of the pressure transducer that second pressure measures branch road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620879837.2U CN205958172U (en) | 2016-08-15 | 2016-08-15 | Wireless pressure transmitter of high accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620879837.2U CN205958172U (en) | 2016-08-15 | 2016-08-15 | Wireless pressure transmitter of high accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205958172U true CN205958172U (en) | 2017-02-15 |
Family
ID=57975902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620879837.2U Expired - Fee Related CN205958172U (en) | 2016-08-15 | 2016-08-15 | Wireless pressure transmitter of high accuracy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205958172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052950A (en) * | 2016-08-15 | 2016-10-26 | 成都众山科技有限公司 | High-precision wireless pressure transmitter |
-
2016
- 2016-08-15 CN CN201620879837.2U patent/CN205958172U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052950A (en) * | 2016-08-15 | 2016-10-26 | 成都众山科技有限公司 | High-precision wireless pressure transmitter |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20170815 |