CN205449337U - Little consumption manometer of high accuracy - Google Patents
Little consumption manometer of high accuracy Download PDFInfo
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- CN205449337U CN205449337U CN201521074324.6U CN201521074324U CN205449337U CN 205449337 U CN205449337 U CN 205449337U CN 201521074324 U CN201521074324 U CN 201521074324U CN 205449337 U CN205449337 U CN 205449337U
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Abstract
The utility model relates to an electronic instrument field, concretely relates to little consumption manometer of high accuracy, including MCU module, power management module, reference voltage module, constant current source, pressure data acquisition module, liquid crystal display module, serial communication module, temperature acquisition module and keying circuit, power management module and MCU module, the reference voltage module, the constant current source, pressure data acquisition module, liquid crystal display module, the serial communication module, the power supply of meeting respectively of temperature acquisition module and keying circuit, the reference voltage module, the constant current source, pressure sensor, pressure data acquisition module joint responsibility pressure value data acquisition, and reach the MCU module, the MCU module has met liquid crystal display module, serial communication module temperature acquisition module and keying circuit, accomplish human -computer interaction, the utility model provides the manometer all adopt the low -power consumption chip circuit, when reducing loss power the guarantee manometer high accuracy can, can be applicable to multiple complicated industrial production environment.
Description
Technical field
This utility model relates to electronic instrument field, is specifically related to a kind of high precisive micro-consumption Pressure gauge.
Background technology
Along with tonometric application is more and more extensive, the requirement to pressure-measuring instrument is more and more higher.At present, applying most in industry spot and scientific experiments is flexible type and electronic pressure instrument, but along with the raising requiring Automatic survey degree, electronic pressure meter becomes tonometric main flow.Now informationalized high speed development proposes again high-precision requirement to electronic pressure meter, present measuring instruments is all to miniaturization, portability in addition, aneroid battery becomes main power supply mode, and aneroid battery finite capacity, the Micro Energy Lose of measuring instruments is just proposed by this, the utility model proposes a kind of by the high precisive micro-consumption Pressure gauge based on low-power chip technology, manometric high precision performance is ensured, it is possible to be applicable to Various Complex industrial production environment while reducing loss power.
Utility model content
For problem above, the utility model proposes a kind of by the high precisive micro-consumption Pressure gauge based on low-power chip technology, while reducing loss power, ensure manometric high precision performance, it is possible to be applicable to Various Complex industrial production environment.
nullTo achieve these goals，The technical solution adopted in the utility model is as follows: high precisive micro-consumption Pressure gauge，Including MCU module、Power management module、Reference voltage module、Constant-current source、Pressure transducer、Pressure data acquisition module、LCD MODULE、Serial communication modular、Temperature collect module and key circuit，Described power management module and MCU module、Reference voltage module、Constant-current source、Pressure data acquisition module、LCD MODULE、Serial communication modular、Temperature collect module and key circuit connect power supply respectively，Described reference voltage module connects with constant-current source，Described constant-current source connects with pressure transducer，Described pressure transducer connects with pressure data acquisition module，Complete pressure data collection and reach MCU module，Described MCU module is connected to LCD MODULE、Serial communication modular、Temperature collect module and key circuit，Finishing man-machine interaction.
Further, described power management module is by dry cell power supply, and is made up of two panels pressure regulation chip A, B, it is provided that two kinds of different output voltages.
Further, described pressure sensor inside uses full-bridge differential circuit and only by constant current source power supply, and described pressure data acquisition module comprises the A/D modular converter independent of single-chip microcomputer.
Further, described LCD MODULE includes liquid crystal block, and this module is directly powered by aneroid battery, and described serial communication modular, temperature collect module are used for piezometer expanded function, are built-in with independent switch respectively.
Further, described MCU module is made up of low-power MSP430F149 Single Chip Microcomputer (SCM) system, and described serial communication modular, temperature collect module realize the transmission of Pressure gauge surveyed data, piezometer temperature monitoring respectively, and described key circuit can arrange piezometer high alarm setting.
The beneficial effects of the utility model:
The utility model proposes a kind of by the high precisive micro-consumption Pressure gauge based on low-power chip technology, use constant-current source that pressure transducer is powered, use the pressure data acquisition module with independent A/D conversion, manometric high precision performance is ensured, it is possible to be applicable to Various Complex industrial production environment while reducing loss power.
Accompanying drawing explanation
Fig. 1 is this utility model overall structure schematic diagram.
Fig. 2 is this utility model constant-current source circuit figure.
Fig. 3 be this utility model be reference voltage module circuit diagram.
Figure is numbered: 1-MCU module, 2-power management module, 3-reference voltage module, 4-constant-current source, 5-pressure transducer, 6-pressure data acquisition module, 7-LCD MODULE, 8-serial communication modular, 9-temperature collect module, 10-key circuit, 11-aneroid battery, 12-pressure regulation chip A, 13-pressure regulation chip B, 14-full-bridge differential circuit, 15-A/D modular converter, 16-liquid crystal block.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
nullAs shown in Figure 1 to Figure 3，A kind of high precisive micro-consumption Pressure gauge，Including MCU module 1、Power management module 2、Reference voltage module 3、Constant-current source 4、Pressure transducer 5、Pressure data acquisition module 6、LCD MODULE 7、Serial communication modular 8、Temperature collect module 9 and key circuit 10，Described power management module 2 and MCU module 1、Reference voltage module 3、Constant-current source 4、Pressure data acquisition module 6、LCD MODULE 7、Serial communication modular 8、Temperature collect module 9 and key circuit 10 connect power supply respectively，Described reference voltage module 3 connects with constant-current source 4，Described constant-current source 4 connects with pressure transducer 5，Described pressure transducer 5 connects with pressure data acquisition module 6，Complete pressure data collection and reach MCU module 1，Described MCU module 1 is connected to LCD MODULE 7、Serial communication modular 8、Temperature collect module 9 and key circuit 10，Finishing man-machine interaction.
On above-described embodiment preferably, power management module 2 is powered by aneroid battery 11, and is made up of two panels pressure regulation chip A12, B13, it is provided that two kinds of different output voltages.
On above-described embodiment preferably, pressure transducer 5 is internal to be used full-bridge differential circuit 14 and is only powered by constant-current source 4, and described pressure data acquisition module 6 comprises the A/D modular converter 15 independent of single-chip microcomputer.
, LCD MODULE 7 includes liquid crystal block 16, and this module is directly powered by aneroid battery 11 on above-described embodiment preferably, and described serial communication modular 8, temperature collect module 9, for piezometer expanded function, are built-in with independent switch respectively.
On above-described embodiment preferably, serial communication modular 8, temperature collect module 9 realize the transmission of Pressure gauge surveyed data, piezometer temperature monitoring respectively, and described key circuit can arrange piezometer high alarm setting.
Based on above-mentioned, use constant-current source that pressure transducer is powered, use the pressure data acquisition module with independent A/D conversion, while reducing loss power, ensure manometric high precision performance, it is possible to be applicable to Various Complex industrial production environment.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (5)
- null1. a high precisive micro-consumption Pressure gauge，Including MCU module、Power management module、Reference voltage module、Constant-current source、Pressure transducer、Pressure data acquisition module、LCD MODULE、Serial communication modular、Temperature collect module and key circuit，It is characterized in that: described power management module and MCU module、Reference voltage module、Constant-current source、Pressure data acquisition module、LCD MODULE、Serial communication modular、Temperature collect module and key circuit connect power supply respectively，Described reference voltage module connects with constant-current source，Described constant-current source connects with pressure transducer，Described pressure transducer connects with pressure data acquisition module，Complete pressure data collection and reach MCU module，Described MCU module is connected to LCD MODULE、Serial communication modular、Temperature collect module and key circuit，Finishing man-machine interaction.
- A kind of high precisive micro-consumption Pressure gauge the most according to claim 1, it is characterised in that: described power management module is by dry cell power supply, and is made up of two panels pressure regulation chip A, B, it is provided that two kinds of different output voltages.
- A kind of high precisive micro-consumption Pressure gauge the most according to claim 1, it is characterised in that: described pressure sensor inside uses full-bridge differential circuit and only by constant current source power supply, and described pressure data acquisition module comprises the A/D modular converter independent of single-chip microcomputer.
- A kind of high precisive micro-consumption Pressure gauge the most according to claim 1, it is characterized in that: described LCD MODULE includes liquid crystal block, and this module directly powered by aneroid battery, described serial communication modular, temperature collect module are used for piezometer expanded function, are built-in with independent switch respectively.
- A kind of high precisive micro-consumption Pressure gauge the most according to claim 1, it is characterized in that: described MCU module is made up of low-power MSP430F149 Single Chip Microcomputer (SCM) system, described serial communication modular, temperature collect module realize the transmission of Pressure gauge surveyed data, piezometer temperature monitoring respectively, and described key circuit can arrange piezometer high alarm setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521074324.6U CN205449337U (en) | 2015-12-20 | 2015-12-20 | Little consumption manometer of high accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521074324.6U CN205449337U (en) | 2015-12-20 | 2015-12-20 | Little consumption manometer of high accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205449337U true CN205449337U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521074324.6U Expired - Fee Related CN205449337U (en) | 2015-12-20 | 2015-12-20 | Little consumption manometer of high accuracy |
Country Status (1)
| Country | Link |
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| CN (1) | CN205449337U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323416A (en) * | 2021-12-28 | 2022-04-12 | 北京麦普兹微电科技有限公司 | Micro-power digital display pressure gauge |
-
2015
- 2015-12-20 CN CN201521074324.6U patent/CN205449337U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323416A (en) * | 2021-12-28 | 2022-04-12 | 北京麦普兹微电科技有限公司 | Micro-power digital display pressure gauge |
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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: 20160810 Termination date: 20171220 |