CN107830951A - A kind of battery type digital display manometer - Google Patents
A kind of battery type digital display manometer Download PDFInfo
- Publication number
- CN107830951A CN107830951A CN201711233187.XA CN201711233187A CN107830951A CN 107830951 A CN107830951 A CN 107830951A CN 201711233187 A CN201711233187 A CN 201711233187A CN 107830951 A CN107830951 A CN 107830951A
- Authority
- CN
- China
- Prior art keywords
- mainboard
- bonnet
- mouthpiece
- battery
- lcds
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/083—Means for indicating or recording, e.g. for remote indication electrical
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/02—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of battery type digital display manometer, include bonnet mouthpiece, sensor function plate, mainboard, LCDs, shell and battery, the sensor probe of sensor function postlaminar part is connected after putting O-ring seals with bonnet mouthpiece, mainboard is fixed by a peripheral frame, peripheral frame is connected in bonnet mouthpiece together with mainboard, and mainboard electrically connects with sensor function plate；LCDs is connected by conductive zebra bar, and battery connection mainboard, LCDs is embedded in shell.The present invention is low in energy consumption, service life is long, digital display precision is high, temperature coefficient is stable by using battery powered；And compact, by changing bottom base, can apply on each different industrial equipment.LCDs can allow the operator to intuitively view work at present equipment state, solve the problems, such as because range estimation causes measurement error.
Description
Technical field
The present invention relates to instrumentation devices technical field, and in particular to a kind of pressure gauge for being used to detect air pressure.
Background technology
Mechanical compression table is usually used in industrial pneumatic equipment, facilitates operating personnel to check whether equipment works at any time
In normal condition.But mechanical compression table must keep vertical in utilization, pressure gauge can only be looked squarely, and have parallax, read
It is poor, sluggish big that number can only estimate reading, the linearity, and temperature coefficient is big, not vibration resistance, it is impossible to overloads, overload and vibration are easily caused damage
It is bad.For these reasons, cause the poor reliability of mechanical compression table, need to often safeguard, and it is difficult in maintenance.
The content of the invention
The defects of present invention is directed to prior art, there is provided a kind of simple in construction, easy to use, compact, display precision
High, easy-to-read battery type digital display manometer.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of battery type digital display manometer, its feature
It is：Include bonnet mouthpiece, sensor function plate, mainboard, LCDs, shell and battery, shell and bonnet interface
Part with reference to the fixed housing for forming pressure gauge, the sensor probe of sensor function postlaminar part put after O-ring seals with bonnet
Mouthpiece is connected, and bonnet mouthpiece, which tightens, is cased with an interior casing seal device；Mainboard is fixed by a peripheral frame, peripheral frame together with
Mainboard is connected in bonnet mouthpiece together, and mainboard electrically connects with sensor function plate；LCDs passes through conductive zebra bar
Electrically connected with mainboard, battery connection mainboard forms electric power-feeding structure, and LCDs, which is embedded in form in shell, shows structure.
Further, the conductive zebra bar is embedded in liquid crystal display fixed frame and sticks mainboard, and LCDs is by saturating
The pressing of bright mirror frame is fixed on conductive zebra bar, and LCDs in shell, makes LCDs by transparent picture frame build-in
It is not easily susceptible to damage.
Further, battery installing port is provided with peripheral frame, button cell is inserted and consolidated by the battery installing port in peripheral frame
It is scheduled between sensor function plate and mainboard, forms the administration of power supply of pressure gauge.
Further, the sensor function plate is fixed in bonnet mouthpiece by countersunk head screw.
Further, display cover is provided with the front of shell, display cover fixes transparent picture frame and LCDs
Inside the housing.
Further, the sensor probe is favour stone piezo-resistance sensing head, and it is 4 pressure-sensitive electricity of favour stone that it is internal
Hinder full-bridge circuit.
The mechanical detection sensor of tradition machinery formula pressure gauge is changed to what four piezo-resistances formed by whole body
Favour stone full-bridge sensing head, it is exported no longer showed that pointer changed as being driven by machine driving in the past.But by by pressure
Change is converted to change in electric, and calculation of pressure is carried out by program.Conventional mechanical indicator is replaced with LCD liquid crystal display screen
Change, can observed pressure conversion directly perceived.Whole system is powered using a button cell, and circuit is carried out without external cabling
Individually power supply, and low in energy consumption, service life length.
Also there is following design feature：
Battery electric quantity detection function：By carrying out self automatic detection to its cells electricity, can real-time display go out to work as
Preceding dump energy, it is easy to intuitively express current device battery.
Reserved externally fed design：Supply voltage by two external reserved pins to 12~24V voltage conversions for 4.5v
Exporting, the switching diode and voltage dependent resistor in circuit carry out superpressure to power supply, and reversal connection shields to circuit system,
Follow-up voltage-regulator diode plays pressure stabilization function.
Design of Temperature Compensation：4.7K thermo-compensator is pulled down in pressure-responsive head, when ambient temperature is sent out
During changing, to should the voltage that is assigned to of resistance corresponding change occurs, this signal is converted to by programmed algorithm
Corresponding temperature compensation coefficient, the inhibition to temperature drift is realized, make the pressure that collects more stable accurate.
Low power dissipation design：By controlling the control powered indirectly to pressure-responsive head (upper electricity, processing during collection signal
Powered off during signal), the using electricity wisely when control (refreshing frequency 4HZ) of LCD display frequencies reaches operation.After running 35s, enter to fall asleep
Sleep mode, further save power consumption.
Unit switches calibration function：Tetra- kinds of units of PSI, MPA, bar, kgf are allowed hand over by button long-press to toggle,
Realized by short-press and zero migration is calibrated.
During work, the pressure-responsive head (inside is 4 favour stone piezo-resistance full-bridge circuits) of sensor function collects
Differential pressure signal, pass the signal to mainboard by arranging pin.Transmit a signal to chip by mainboard again to process, chip-count
Display port is sent to according to output display signal after processing by conductive zebra bar to be shown.
The present invention is low in energy consumption, service life is long, digital display precision is high, temperature coefficient is stable by using battery powered；And body
Product is compact, by changing bottom base, can apply on each different industrial equipment.LCDs can make operating personnel
Work at present equipment state can be intuitively viewed, solves the problems, such as that range estimation causes measurement error, thus can be widely applied to
Precise pressure regulating valve supports the use, and pneumatic triple piece is supporting, and pressure vessel is supporting, the pressure display system lamp industry gas of pneumatic system
In dynamic equipment.
Brief description of the drawings
Fig. 1 is three-dimensional structure diagram of the present invention；
Fig. 2 is the three-dimensional structure diagram of another angle of the present invention；
Fig. 3 is decomposition chart of the present invention.
In figure, 1 is bonnet mouthpiece, and 2 be interior casing seal device, and 3 be O-ring seals, and 4 be sensor function plate, and 5 are
Countersunk head screw, 6 be peripheral frame, and 7 be mainboard, and 8 be liquid crystal display fixed frame, and 9 be conductive zebra bar, and 10 be LCDs, and 11 are
Bright mirror frame, 12 be shell, and 13 be display cover, and 14 be battery, and 15 be sensor probe.
Embodiment
In the present embodiment, reference picture 1, Fig. 2 and Fig. 3, the battery type digital display manometer, include bonnet mouthpiece 1, pass
Sensor feature board 4, mainboard 7, LCDs 10, shell 12 and battery 14, shell 12 are combined fixed formation with bonnet mouthpiece 1
The housing of pressure gauge, the sensor probe 15 at the rear portion of sensor function plate 4 are connected after putting O-ring seals 3 with bonnet mouthpiece 1
Fixed, bonnet mouthpiece 1, which tightens, is cased with an interior casing seal device 2, and bonnet mouthpiece 1 is used to connect vehicle equipment；Mainboard 7 is logical
Cross a peripheral frame 6 to fix, peripheral frame 6 is connected in bonnet mouthpiece 1 together with mainboard 7, and mainboard 7 is electrically connected with sensor function plate 4
Connect；LCDs 10 is electrically connected by conductive zebra bar 9 with mainboard 7, and battery 14 connects mainboard 7 and forms electric power-feeding structure, liquid crystal
Display screen 10, which is embedded in form in shell 12, shows structure.
The conductive zebra bar 9 is embedded in liquid crystal display fixed frame 8 and sticks mainboard 7, and LCDs 10 is by transparent mirror
The pressing of frame 11 is fixed on conductive zebra bar 9, and LCDs 10 in shell 12, makes liquid crystal by the transparent build-in of picture frame 11
Display screen 10 is not easily susceptible to damage.
Battery installing port is provided with peripheral frame 6, button cell 14 is inserted and secured on biography by the battery installing port in peripheral frame 6
Between sensor feature board 4 and mainboard 7, the administration of power supply of pressure gauge is formed.
The sensor function plate 4 is fixed in bonnet mouthpiece 1 by countersunk head screw 5.
Display cover 13 is provided with the front of shell 12, display cover 13 fixes transparent picture frame 11 and LCDs 10
Inside shell 12.
The sensor probe 15 is favour stone piezo-resistance sensing head, and it is 4 favour stone piezo-resistance full-bridges that it is internal
Circuit.
The present invention is described in detail above, described above, only the preferred embodiments of the invention, when can not
Limit the application practical range, i.e., it is all to make equivalent changes and modifications according to the application scope, it all should still belong to covering scope of the present invention
It is interior.
Claims (5)
- A kind of 1. battery type digital display manometer, it is characterised in that：Include bonnet mouthpiece, sensor function plate, mainboard, liquid crystal Display screen, shell and battery, shell are combined the fixed housing for forming pressure gauge with bonnet mouthpiece, sensor function postlaminar part Sensor probe is connected after putting O-ring seals with bonnet mouthpiece, and bonnet mouthpiece, which tightens, is cased with an interior casing seal Device；Mainboard is fixed by a peripheral frame, and peripheral frame is connected in bonnet mouthpiece together with mainboard, mainboard and sensor function plate Electrical connection；LCDs is electrically connected by conductive zebra bar with mainboard, and battery connection mainboard forms electric power-feeding structure, liquid crystal display Screen, which is embedded in form in shell, shows structure.
- 2. in liquid crystal display fixed frame and sticking mainboard, LCDs is fixed on conductive zebra bar by the pressing of transparent picture frame, liquid Crystal display screen is by transparent picture frame build-in in shell.
- 3. battery type digital display manometer according to claim 1, it is characterised in that：Battery installing port is provided with peripheral frame, Button cell is inserted and secured between sensor function plate and mainboard by the battery installing port in peripheral frame, forms the confession of pressure gauge Motor structure.
- 4. battery type digital display manometer according to claim 1, it is characterised in that：The sensor function plate passes through countersunk head Screw is fixed in bonnet mouthpiece.
- 5. battery type digital display manometer according to claim 1, it is characterised in that：The sensor probe pressure-responsive Head, its internal favour stone full-bridge circuit formed for 4 piezo-resistances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711233187.XA CN107830951A (en) | 2017-11-30 | 2017-11-30 | A kind of battery type digital display manometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711233187.XA CN107830951A (en) | 2017-11-30 | 2017-11-30 | A kind of battery type digital display manometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107830951A true CN107830951A (en) | 2018-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711233187.XA Pending CN107830951A (en) | 2017-11-30 | 2017-11-30 | A kind of battery type digital display manometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107830951A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063528A (en) * | 2021-03-19 | 2021-07-02 | 上海铭控传感技术有限公司 | Sealing structure of pressure gauge |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004000564U1 (en) * | 2004-01-15 | 2004-04-01 | Keller AG für Druckmeßtechnik | Electronic pressure gauge |
| CN2802488Y (en) * | 2005-06-08 | 2006-08-02 | 滁州市金大仪器设备有限公司 | Radio data pressure meter |
| US20100255526A1 (en) * | 2007-06-16 | 2010-10-07 | Atmi Packaging, N.V. | Bioreactor probe connection system |
| CN203148615U (en) * | 2013-03-26 | 2013-08-21 | 深圳市南方泰科软件技术有限公司 | Digital display pressure gauge |
| CN203287127U (en) * | 2013-03-07 | 2013-11-13 | 华捷科技有限公司 | Internet of things digital electric contact pressure gauge |
| CN203719815U (en) * | 2014-01-27 | 2014-07-16 | 西安东晶测控设备有限公司 | High-precision pressure measuring device |
| CN104344841A (en) * | 2013-07-24 | 2015-02-11 | 帕尔公司 | Sensor probe seal |
| CN204924539U (en) * | 2015-09-10 | 2015-12-30 | 齐亚斯(上海)物联网科技有限公司 | High -temperature melt digital display manometer |
| CN205909869U (en) * | 2016-07-12 | 2017-01-25 | 上海瑾冠电气科技有限公司 | Intelligent environmental sensor |
| CN207649801U (en) * | 2017-11-30 | 2018-07-24 | 广东诺能泰自动化技术有限公司 | A kind of battery type digital display manometer |
-
2017
- 2017-11-30 CN CN201711233187.XA patent/CN107830951A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004000564U1 (en) * | 2004-01-15 | 2004-04-01 | Keller AG für Druckmeßtechnik | Electronic pressure gauge |
| CN2802488Y (en) * | 2005-06-08 | 2006-08-02 | 滁州市金大仪器设备有限公司 | Radio data pressure meter |
| US20100255526A1 (en) * | 2007-06-16 | 2010-10-07 | Atmi Packaging, N.V. | Bioreactor probe connection system |
| CN203287127U (en) * | 2013-03-07 | 2013-11-13 | 华捷科技有限公司 | Internet of things digital electric contact pressure gauge |
| CN203148615U (en) * | 2013-03-26 | 2013-08-21 | 深圳市南方泰科软件技术有限公司 | Digital display pressure gauge |
| CN104344841A (en) * | 2013-07-24 | 2015-02-11 | 帕尔公司 | Sensor probe seal |
| CN203719815U (en) * | 2014-01-27 | 2014-07-16 | 西安东晶测控设备有限公司 | High-precision pressure measuring device |
| CN204924539U (en) * | 2015-09-10 | 2015-12-30 | 齐亚斯(上海)物联网科技有限公司 | High -temperature melt digital display manometer |
| CN205909869U (en) * | 2016-07-12 | 2017-01-25 | 上海瑾冠电气科技有限公司 | Intelligent environmental sensor |
| CN207649801U (en) * | 2017-11-30 | 2018-07-24 | 广东诺能泰自动化技术有限公司 | A kind of battery type digital display manometer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063528A (en) * | 2021-03-19 | 2021-07-02 | 上海铭控传感技术有限公司 | Sealing structure of pressure gauge |
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