CN205091082U - Atmospheric pressure measuring apparatu - Google Patents
Atmospheric pressure measuring apparatu Download PDFInfo
- Publication number
- CN205091082U CN205091082U CN201520888362.9U CN201520888362U CN205091082U CN 205091082 U CN205091082 U CN 205091082U CN 201520888362 U CN201520888362 U CN 201520888362U CN 205091082 U CN205091082 U CN 205091082U
- Authority
- CN
- China
- Prior art keywords
- measuring tube
- piezoelectric ceramic
- ceramic plate
- signal
- hole
- 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 Fluid Pressure (AREA)
Abstract
The utility model discloses an atmospheric pressure measuring apparatu, including the survey buret of vertical setting, survey the buret lower extreme and establish to the mouth of pipe, be equipped with in the survey buret the piezoceramics board that separates into upper and lower two parts in the survey buret, piezoceramics board center is equipped with the through -hole, is provided with the flexible sheet in the through -hole, surveys the interior upper portion evacuation of buret. The utility model discloses it is too long that length need not not design to great measurement range and higher measurement accuracy have.
Description
Technical field
The utility model relates to gas measurement device field, mainly a kind of gas-pressure survey meter.
Background technology
It is generally adopt mercury column to measure that gas atmosphere is measured, and namely utilizes the length of mercury column to represent gaseous tension.Prior art based on the air pressure measuring apparatus of mercury column generally all need to design longer, otherwise mercury column cannot full extension, and the range measuring air pressure is less.
utility model contenttechnical problem to be solved in the utility model is to provide a kind of gas-pressure survey meter, and it is oversize that its length need not design, and has larger measurement range and higher measuring accuracy, can solve prior art Problems existing.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of gas-pressure survey meter, include the vertical measuring tube arranged, it is characterized in that: described measuring tube lower end is set to the mouth of pipe, measuring tube upper end closed, be provided with in measuring tube and will be divided in measuring tube, lower two-part piezoelectric ceramic plate, piezoelectric ceramic plate center is provided with through hole, flexible sheet is provided with in through hole, by flexible sheet, piezoelectric ceramic plate plugging meter pipe internal upper part, and measuring tube internal upper part vacuumizes, described measuring tube upper end is provided with electric box, microprocessor is provided with in electric box, signal acquisition circuit, signal amplification circuit, described piezoelectric ceramic plate is connected with signal acquisition circuit input end by signal wire, signal acquisition circuit output is connected with signal amplification circuit input end, signal amplification circuit output terminal access microprocessor.
Described a kind of gas-pressure survey meter, is characterized in that: described electric box sidewall is also provided with display screen, display screen access microprocessor.
The utility model has the advantages that:
In the utility model, measuring tube internal upper part vacuumizes, and during measurement air pressure, flexible sheet is by gas pressure, can apply pulling force to piezoelectric ceramic plate, piezoelectric ceramic plate produces signal, and signal sends into microprocessor processes through signal acquisition circuit collection, signal amplification circuit after amplifying.It is oversize that the utility model length need not design, and have larger measurement range and higher measuring accuracy.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Shown in Figure 1, a kind of gas-pressure survey meter, include the vertical measuring tube 1 arranged, described measuring tube 1 lower end is set to the mouth of pipe, measuring tube 1 upper end closed, be provided with in measuring tube 1 and be divided in measuring tube 1, lower two-part piezoelectric ceramic plate 2, piezoelectric ceramic plate 2 center is provided with through hole, flexible sheet 3 is provided with in through hole, by flexible sheet 3, piezoelectric ceramic plate 2 plugging meter pipe 1 internal upper part 4, and measuring tube 1 internal upper part 4 vacuumizes, measuring tube 1 upper end is provided with electric box 5, microprocessor 6 is provided with in electric box 5, signal acquisition circuit 7, signal amplification circuit 8, piezoelectric ceramic plate 2 is connected with signal acquisition circuit 7 input end by signal wire, signal acquisition circuit 7 output terminal is connected with signal amplification circuit 8 input end, signal amplification circuit 8 output terminal access microprocessor 6.Electric box 1 sidewall is also provided with display screen 9, and display screen 9 accesses microprocessor 6.
Claims (2)
1. a gas-pressure survey meter, include the vertical measuring tube arranged, it is characterized in that: described measuring tube lower end is set to the mouth of pipe, measuring tube upper end closed, be provided with in measuring tube and will be divided in measuring tube, lower two-part piezoelectric ceramic plate, piezoelectric ceramic plate center is provided with through hole, flexible sheet is provided with in through hole, by flexible sheet, piezoelectric ceramic plate plugging meter pipe internal upper part, and measuring tube internal upper part vacuumizes, described measuring tube upper end is provided with electric box, microprocessor is provided with in electric box, signal acquisition circuit, signal amplification circuit, described piezoelectric ceramic plate is connected with signal acquisition circuit input end by signal wire, signal acquisition circuit output is connected with signal amplification circuit input end, signal amplification circuit output terminal access microprocessor.
2. a kind of gas-pressure survey meter according to claim 1, is characterized in that: described electric box sidewall is also provided with display screen, display screen access microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520888362.9U CN205091082U (en) | 2015-11-04 | 2015-11-04 | Atmospheric pressure measuring apparatu |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520888362.9U CN205091082U (en) | 2015-11-04 | 2015-11-04 | Atmospheric pressure measuring apparatu |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205091082U true CN205091082U (en) | 2016-03-16 |
Family
ID=55481757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520888362.9U Expired - Fee Related CN205091082U (en) | 2015-11-04 | 2015-11-04 | Atmospheric pressure measuring apparatu |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205091082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998987A (en) * | 2020-09-03 | 2020-11-27 | 西安柯莱特信息科技有限公司 | High-sensitivity air pressure detector |
-
2015
- 2015-11-04 CN CN201520888362.9U patent/CN205091082U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998987A (en) * | 2020-09-03 | 2020-11-27 | 西安柯莱特信息科技有限公司 | High-sensitivity air pressure detector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202947984U (en) | Measurement device for specific heat ratio of gas | |
| CN204495663U (en) | Insulator tension pick-up unit under high and low temperature environment | |
| CN205091082U (en) | Atmospheric pressure measuring apparatu | |
| CN204882293U (en) | Measure device of gas production volume | |
| CN202421385U (en) | Portable transformer tester | |
| CN105261263A (en) | Freefall motion experimental instrument | |
| WO2018049831A1 (en) | Gas bag height measurement device | |
| CN208125319U (en) | A kind of baroceptor | |
| CN202693217U (en) | Vacuum detection box | |
| CN205120336U (en) | Device of atmospheric pressure is stabilized to wind -tunnel gauge pressure sensor | |
| CN203908873U (en) | Device for converting pressure sensor into tension sensor | |
| CN204422112U (en) | A kind of strain transducer | |
| CN205091321U (en) | Indoor gaseous mass sampling detector | |
| CN103604559A (en) | Digital tire pressure gauge for airplane | |
| CN204855550U (en) | Little air velocity transducer | |
| CN206223123U (en) | A kind of pressure size measuring device | |
| CN203349974U (en) | Novel soil pressure meter | |
| CN203503210U (en) | Injector-contained atmospheric pressure measuring device | |
| CN203163837U (en) | Gas flow instrument field calibration device | |
| CN203657688U (en) | Thickness testing device for coil panel of induction cooker | |
| CN202330554U (en) | Signal generator capable of detecting frequency | |
| CN202471048U (en) | Mobile tester of planeness | |
| CN203672557U (en) | Detecting and correcting device of pressure sensor and pressure instrument | |
| CN204374164U (en) | A kind of preventive medicine is with analyzing titration apparatus | |
| CN203350145U (en) | Digital display Webster hardness gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: F1 No. 2 building 230094 Anhui city of Hefei province high tech Zone Wenqu road and East Road intersection diving Innovation Industrial Park 17 Patentee after: Hefei Dewey intelligent Polytron Technologies Inc Address before: F1 No. 2 building 230094 Anhui city of Hefei province high tech Zone Wenqu road and East Road intersection diving Innovation Industrial Park 17 Patentee before: Hefei Duwei Instrument Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20201104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |