CN201748996U - Precision digital pressure and differential pressure gauge - Google Patents
Precision digital pressure and differential pressure gauge Download PDFInfo
- Publication number
- CN201748996U CN201748996U CN2010201587388U CN201020158738U CN201748996U CN 201748996 U CN201748996 U CN 201748996U CN 2010201587388 U CN2010201587388 U CN 2010201587388U CN 201020158738 U CN201020158738 U CN 201020158738U CN 201748996 U CN201748996 U CN 201748996U
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- Prior art keywords
- pressure
- differential pressure
- digital
- module
- display screen
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- Expired - Fee Related
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Abstract
The utility model discloses a precision digital pressure and differential pressure gauge. A shell (1) is provided with a display screen (2) thereon and a circuit board therein and the display screen (2) and a sensor (3) are linked with the circuit board which consists of a power module (4), a signal conversion module (5), a signal processing module (6) and a display module (7) together connected on a line board. The sensor (3) measures pressure and differential pressure, the measured pressure and differential pressure signals are converted into digital signals by the signal conversion module (5), and after the signals are processed by the signal processing module (6), the digital display screen (2) displays measured pressure and differential pressure values. In the utility model, the detection and display of the pressure and differential pressure signals can be combined in one gauge. The precision digital pressure and differential pressure gauge is small and exquisite in size and convenient for use, is supplied with power by a 3.6V battery so as to solve the high precision measurement of pressure and differential pressure in a place without a power supply, and can be used for industrial site measurement, as well as used as a standard digital pressure and differential pressure gauge in a laboratory.
Description
Technical field
The utility model relates to instrument, is specifically related to a kind of precision digital pressure, differential pressure gauge.
Background technology
At present, on the market, what pressure survey was used is pointer pressure, differential pressure gauge at home, there are pointer visual angle error in pointer-type pressure, differential pressure gauge, measuring accuracy is low, and working pressure, differential pressure transmitter must provide 24V power supply and supporting read out instrument, are not easy to in-site measurement.
Summary of the invention
The purpose of this utility model is: a kind of precision digital pressure, differential pressure gauge are provided, the detection and the demonstration of pressure, differential pressure signal can be concentrated in the same instrument, volume is small and exquisite, easy to use, by the 3.6V powered battery, solution can be used for industry spot and measures in the high-acruracy survey of non-transformer place pressure, differential pressure, also can be used for the laboratory as standard digital pressure, differential pressure gauge.
The technical scheme that its technical matters that solves the utility model adopts is: pressure, differential pressure pick-up gaging pressure, differential pressure that this digital pressure, differential pressure gauge are exported by high-precision electric signal, use modulus conversion technique, the pressure, the differential pressure signal that measure are converted into digital signal by analog to digital converter, show gaging pressure, differential pressure value by digital indicator.
Concrete technical solution of the present utility model is: this digital pressure, differential pressure gauge comprise housing, display screen, circuit board and sensor, display screen is installed on housing, mounting circuit boards in housing, display screen and sensor connect circuit board, and circuit board is connected in the circuit board altogether by power module, signal conversion module, signal processing module and display module and forms.
The utlity model has following advantage:
1, instrument adopts little power consumption, high precision, low drift integrated circuit and the visual angle liquid crystal display of the big field width of wide temperature range type, use the 3.6V lithium battery, Overall Power Consumption is minimum, has stronger antijamming capability and measures reaction velocity faster, is particularly suitable for power free measure field or laboratory.
2, instrument adopts Stainless Steel Shell and silicone rubber seal, has characteristics such as dustproof, moisture-proof, antivibration, is applicable to and installs and uses in the various rugged surroundings also have extremely strong explosion-proof performance, is the preferred measurement instruments of industry such as metallurgy, chemical industry, electric power, weaving.
Description of drawings
Fig. 1 is a profile synoptic diagram of the present utility model
Fig. 2 is the circuit theory diagrams of Fig. 1
Among the figure: 1 housing, 2 display screens, 3 sensors, 4 power modules, 5 signal conversion module, 6 signal processing modules, 7 display modules.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
This digital pressure, differential pressure gauge comprise housing 1, display screen 2, circuit board and sensor 3, display screen 2 is installed on housing 1, mounting circuit boards in housing 1, display screen 2 and sensor 3 connect circuit board, and circuit board is connected in the circuit board altogether with display module 7 by power module 4, signal conversion module 5, signal processing module 6 and forms.
By sensor 3 gaging pressures, differential pressure, the pressure that measures, differential pressure signal are converted into digital signal by signal conversion module 5, handle 6 through signal processing module and show gaging pressure, differential pressure value by digital display screen 2 again.
Power module: mainly, adopt little power consumption chip and energy saver mode, make power-efficient reach 95% to the total system power supply.
Signal conversion module: pressure, differential pressure signal are transformed into digital signal feed signals processing module through signal conversion module with electric signal to be handled.
Signal processing module: pressure, differential pressure digitized signal are carried out temperature, linear compensation technology export high-precision pressure, differential pressure signal through signal processing module.
Display module:, be converted into numeral and show with the electric signal that signal processing module comes.Precision: ± 0.1%F.S ± 0.2%F.S ± 0.5%F.S
Technology indication of the present utility model is as follows:
Stability: be better than ± 0.2F.S/
Vibration effect: during vibration frequency 20～200Hz, change less than 0.05%F.S
Show: 3 half
Power supply: a joint AA3.6V lithium battery
Power consumption: AD-C temperature (but battery continuous working about 3 years)
AD-Y pressure (but battery continuous working about 2 years)
Degree of protection: be better than IP65
Claims (1)
1. precision digital pressure, differential pressure gauge, it is characterized in that: this digital pressure, differential pressure gauge comprise housing (1), display screen (2), circuit board and sensor (3), go up installation display screen (2) at housing (1), mounting circuit boards in housing (1), display screen (2) and sensor (3) connect circuit board, and circuit board is connected in the circuit board altogether with display module (7) by power module (4), signal conversion module (5), signal processing module (6) and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201587388U CN201748996U (en) | 2010-04-06 | 2010-04-06 | Precision digital pressure and differential pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201587388U CN201748996U (en) | 2010-04-06 | 2010-04-06 | Precision digital pressure and differential pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201748996U true CN201748996U (en) | 2011-02-16 |
Family
ID=43583671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201587388U Expired - Fee Related CN201748996U (en) | 2010-04-06 | 2010-04-06 | Precision digital pressure and differential pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201748996U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387340A (en) * | 2018-02-06 | 2018-08-10 | 江苏凡特斯克仪表科技有限公司 | A kind of explosion-proof differential pressure gauge of three valve group of digital integral |
-
2010
- 2010-04-06 CN CN2010201587388U patent/CN201748996U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387340A (en) * | 2018-02-06 | 2018-08-10 | 江苏凡特斯克仪表科技有限公司 | A kind of explosion-proof differential pressure gauge of three valve group of digital integral |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20120406 |