CN115077783A - Long-term maintenance-free micro-power-consumption digital display differential pressure gauge - Google Patents
Long-term maintenance-free micro-power-consumption digital display differential pressure gauge Download PDFInfo
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- CN115077783A CN115077783A CN202210684334.XA CN202210684334A CN115077783A CN 115077783 A CN115077783 A CN 115077783A CN 202210684334 A CN202210684334 A CN 202210684334A CN 115077783 A CN115077783 A CN 115077783A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/04—Devices or apparatus for measuring differences of two or more fluid pressure values using floats or liquids as sensing elements
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- 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
Abstract
The invention discloses a long-term maintenance-free micro-power-consumption digital-display differential pressure gauge, which relates to the technical field of differential pressure gauges and comprises a micro-power-consumption digital-display differential pressure gauge, wherein the micro-power-consumption digital-display differential pressure gauge is used for equipment installation and a micro-power-consumption differential pressure measurement system for ensuring the operation of the micro-power-consumption digital-display differential pressure gauge, and the micro-power-consumption differential pressure measurement system has the beneficial effects that: the differential pressure measuring instrument comprises a differential pressure sensor, a micro power amplifier, a micro power single chip microcomputer and other modules, and meanwhile, because the differential pressure sensor adopts an oil filling body and a stainless steel film to have a good damping effect, the fault caused by the breakage of a spring tube similar to a mechanical differential pressure meter can be prevented.
Description
Technical Field
The invention relates to the technical field of differential pressure gauge equipment, in particular to a long-term maintenance-free micro-power consumption digital display differential pressure gauge.
Background
The differential pressure gauge is suitable for measuring parameters such as differential pressure, flow and the like of various liquid media in the process flow of industrial departments such as chemical engineering, chemical borer, metallurgy, electric power, nuclear power and the like. In the prior art, a mechanical differential pressure meter or a battery-powered differential pressure meter is adopted, and mechanical differential pressure brings errors caused by mechanical abrasion due to differential pressure fluctuation. The battery powered differential pressure gauge only has half a year to a year because of the big general live time of consumption, therefore current differential pressure gauge needs artifical regular fixed point to maintain, need frequently to change the battery simultaneously, has increaseed artifical intensity of labour on the one hand, causes the cost consumption to increase on the one hand, still causes the data loss condition simultaneously easily for influence normal operation, reduced holistic work efficiency.
Therefore, compared with a digital display differential pressure gauge on the market, the digital display differential pressure gauge has the outstanding advantages that batteries are not changed for more than ten years, has the advantages of high intelligent digital display precision, no maintenance and high pressure resistance, and has better performance than a mechanical differential pressure gauge, and the problems are solved by the long-term maintenance-free micro-power consumption digital display differential pressure gauge.
Disclosure of Invention
In view of the above problems in the prior art, a primary object of the present invention is to provide a long-term maintenance-free micro-power digital display differential pressure gauge, so as to solve the problems that the conventional differential pressure gauge needs to be maintained at regular fixed points manually, and a battery needs to be replaced frequently, on one hand, the labor intensity of the manual labor is increased, on the other hand, the cost consumption is increased, and on the other hand, the data loss is easily caused, so that the normal operation is affected, and the overall working efficiency is reduced.
The technical scheme of the invention is as follows:
a long-term maintenance-free micro-power consumption digital display differential pressure gauge comprises a micro-power consumption digital display differential pressure gauge, wherein the micro-power consumption digital display differential pressure gauge is used for equipment installation and a micro-power consumption differential pressure measurement system used for ensuring the operation of the micro-power consumption digital display differential pressure gauge;
the control system comprises a control terminal, an amplifier module, a power module, a digital display module, a control chip, a sensor module, an amplifier module, a power module and a power module, wherein the control terminal is electrically connected with the control chip in a two-way mode, the output end of the control chip is electrically connected with the input end of the digital display module, the output end of the control chip is electrically connected with the input end of the sensor module, the output end of the sensor module is electrically connected with the input end of the amplifier module, the output end of the amplifier module is electrically connected with the input end of the single chip microcomputer, the output end of the single chip microcomputer is electrically connected with the input end of the digital display module, the output end of the operation module is electrically connected with the input end of the single chip microcomputer, and the control terminal is electrically connected with the power module in a two-way.
Preferably, the control terminal is configured to send corresponding operation instructions to the control chip, the power module, and the digital display module, and is also configured to receive instructions sent from the control chip, the power module, and the digital display module;
the sensor module is used for converting differential pressure into a voltage signal, modifying bridge arm resistance on the basis of a universal diffused silicon piezoresistive oil-filled body sensor, and realizing a micro-power consumption mode of the sensor by adopting a specially designed 50uA constant current source;
the amplifier module is used for reducing the power consumption to 50uA on the basis of keeping the performance of the original instrument, ensuring that the working current is less than 50uA by adopting a high-integration-level micro-power consumption device, amplifying a weak signal into a strong signal by the amplifier module, and converting the strong signal into a digital signal by A/D (analog/digital);
the single chip microcomputer module is used for converting the digital signals into differential pressure dimensions, then linearizing and compensating the differential pressure dimensions, and outputting digital differential pressure values to the digital display module through I2C;
the power supply module is used for providing power supply for the micro-power consumption differential pressure measurement system and adopts a micro-power consumption unit;
the digital display module is used for displaying the differential pressure value through an LCD (liquid crystal display) and is used for verifying and alarming the differential pressure gauge, and the digital display module adopts a frequency-reducing special customized digital display module;
the operation module is used for sending an operation instruction to the micro-power differential pressure measurement system, executing the operation instruction through a control terminal, and simultaneously sending a corresponding operation instruction to the single chip microcomputer module.
Preferably, fixedly connected with mounting disc can be dismantled in the outside of little consumption digital display differential pressure gauge, differential pressure display dish has been seted up to the inside of mounting disc, the switch that the equidistance distributes is installed to the inside of mounting disc and the below that is located differential pressure display dish, little consumption digital display differential pressure gauge keeps away from one side fixedly connected with control box of mounting disc, fixedly connected with battery can be dismantled in the inside of control box.
Preferably, the inside of control box just is located the below fixedly connected with differential pressure sensor of battery, the singlechip is installed to differential pressure sensor's the outside, amplifier A/D conversion equipment is installed in the outside of differential pressure sensor and the one side of keeping away from the singlechip.
Preferably, the bottom fixedly connected with support column of control box, the bottom fixedly connected with base of support column, the equal fixedly connected with portable handle in both sides of control box.
Preferably, the through holes which are symmetrically distributed are formed in the outer side of the base, and the heat dissipation seams which are equidistantly distributed are formed in one side, away from the micro-power-consumption digital-display differential pressure gauge, of the control box.
Preferably, the outer side of the storage battery is fixedly connected with a main control board, the outer side of the main control board is fixedly connected with a control chip, and the micro-power digital display differential pressure gauge, the differential pressure display panel, the switch, the storage battery and the differential pressure sensor are all electrically connected with the control chip.
Preferably, two bolts are installed at the bottom of the base and are in threaded connection with the base.
Preferably, the differential pressure sensor is made of a mixed material of an oil filling body and a stainless steel film, and the control box is made of a stainless steel material.
Preferably, the control terminal is electrically connected with the control chip, the sensor module is electrically connected with the differential pressure sensor, the amplifier module is electrically connected with the amplifier A/D conversion equipment, the single chip microcomputer module is electrically connected with the single chip microcomputer, the power supply module is electrically connected with the storage battery, the digital display module is electrically connected with the differential pressure display panel, and the operation module is electrically connected with the switch.
The invention has the following advantages and beneficial effects:
1. the differential pressure gauge is provided with the micro-power digital display differential pressure gauge and the differential pressure sensor, no mechanical movable parts exist during setting, the structure is compact and not loosened, the abrasion of mechanical parts caused by the continuous swing of the mechanical differential pressure gauge during differential pressure fluctuation does not exist, the gauge error caused by mechanical abrasion is eliminated, the verification and maintenance workload of thermal engineering personnel is reduced, the maintenance is truly free, meanwhile, the differential pressure sensor has good damping effect due to the fact that an oil filling body and a stainless steel film are adopted, the high pressure resistance is good, the accident caused by the breakage of a spring tube of the mechanical differential pressure gauge is prevented, and meanwhile, the corrosion resistance is good;
2. be provided with little consumption differential pressure measurement system, form complete system through control terminal, sensor module, amplifier module, single chip module, power module, digital display module and operation module cooperation, make things convenient for normal use, improved intelligent and non-maintaining effect to holistic operating efficiency has been improved, through little consumption single chip processing, realize little consumption and high accuracy effect, the maintenance work load that has significantly reduced has satisfied the needs when using.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a flow chart of the structure of the micro-power differential pressure measurement system of the present invention;
FIG. 3 is an elevational view of the overall construction of the present invention;
fig. 4 is a schematic diagram of the internal structure of the control box of the present invention.
In the figure: 1. a micro-power consumption digital display differential pressure gauge; 2. mounting a disc; 3. a differential pressure display panel; 4. a switch; 5. a control box; 6. a portable handle; 7. a support pillar; 8. a base; 9. a bolt; 10. a through hole; 11. a storage battery; 12. a main control board; 13. a control chip; 14. heat dissipation seams; 15. and a differential pressure sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention will be further described with reference to the drawings and specific examples.
Referring to fig. 1 to 4, the present invention provides a technical solution: a long-term maintenance-free micro-power consumption digital display differential pressure gauge comprises a micro-power consumption digital display differential pressure gauge 1, wherein the micro-power consumption digital display differential pressure gauge 1 is used for equipment installation, and a micro-power consumption differential pressure measurement system used for ensuring the operation of the micro-power consumption digital display differential pressure gauge 1 is used for carrying out digital display through the micro-power consumption differential pressure measurement system, so that errors caused by mechanical wear are eliminated through the micro-power consumption digital display differential pressure gauge 1, and the micro-power consumption differential pressure measurement system has long-term maintenance-free performance and comprises a control terminal, a sensor module, an amplifier module, a single chip microcomputer module, a power supply module, a digital display module and an operation module;
the control system comprises a control terminal, an amplifier module, a power module, a digital display module, a control chip, a sensor module, an amplifier module, a power module and a power module, wherein the control terminal is electrically connected with the control chip in a two-way mode, the output end of the control chip is electrically connected with the input end of the digital display module, the output end of the control chip is electrically connected with the input end of the sensor module, the output end of the sensor module is electrically connected with the input end of the amplifier module, the output end of the amplifier module is electrically connected with the input end of the single chip microcomputer, the output end of the single chip microcomputer is electrically connected with the input end of the digital display module, the output end of the operation module is electrically connected with the input end of the single chip microcomputer, and the control terminal is electrically connected with the power module in a two-way.
The control terminal is used for sending corresponding operation instructions to the control chip, the power supply module and the digital display module and simultaneously receiving instructions sent by the control chip, the power supply module and the digital display module;
the sensor module is used for converting differential pressure into a voltage signal, modifying bridge arm resistance on the basis of a general diffused silicon piezoresistive oil-filled body sensor, and adopting a specially designed 50uA constant current source to realize a micro-power consumption mode of the sensor, wherein the working current is one 20 of that of a conventional sensor, and the power consumption is reduced from original 5mW (5V 1mA) to 0.04mW (0.8V 0.05mA) and is one 125 of that of the original power consumption;
the amplifier module is used for reducing the power consumption to 50uA on the basis of keeping the performance of the original instrument, the working current is ensured to be less than 50uA by adopting a micro-power consumption device with high integration level, the amplifier module amplifies weak signals into strong signals and converts the strong signals into digital signals through A/D, and the working current of the amplifier and the A/D conversion is 50uA which is 30 times less than that of a conventional amplifier 1mA and A/D0.5 mA);
the single chip microcomputer module is used for converting digital signals into differential pressure dimensions, then performing linearization and temperature compensation, outputting digital differential pressure values to the digital display module through I2C, wherein the power consumption of the single chip microcomputer is determined by the factors of the type, the voltage grade and the working mode of the single chip microcomputer, the software sets a micro-power consumption working mode, the power supply voltage is set to be 3V working voltage, the working voltage of the module is 3.2V and the current of the module is 50uA, the power consumption of the single chip microcomputer is ensured to be 160uW (3.2V 50uA), the single chip microcomputer module is an intelligent digital display core module, and a foundation is laid for the technology of not changing batteries for decades;
the power supply module is used for providing power supply for the micro-power consumption differential pressure measurement system, the power supply adopts two batteries of 3.6V8500mAH, the total capacity is 17000mAH, a micro-power consumption unit is adopted to output 3V power supply voltage so as to reduce the power consumption of the instrument, the working current of the measurement system is 160uA, the working voltage is 3.2V, the theoretical working time of no battery replacement is 12.12 years which is 17000/0.16mA 24 365), and the battery replacement is ensured to be possible in ten years of working by considering other factors;
the digital display module is used for displaying a differential pressure value through an LCD (liquid crystal display), verifying and alarming setting of the differential pressure meter through a switch 4, the digital display module adopts a frequency-reduction special customized digital display module, the working voltage of the LCD is 3.2V, the current is 10uA, and the power consumption is 32uW (3.2V 10 uA);
the operation module is used for sending an operation instruction to the micro-power differential pressure measurement system, executing the operation instruction through a control terminal, and simultaneously sending a corresponding operation instruction to the single chip microcomputer module.
Wherein, fixedly connected with mounting disc 2 can be dismantled in the outside of little consumption digital display differential pressure gauge 1, differential pressure display dish 3 has been seted up to the inside of mounting disc 2, the inside of mounting disc 2 just is located the below of differential pressure display dish 3 and installs the switch 4 that the equidistance distributes, little consumption digital display differential pressure gauge 1 keeps away from one side fixedly connected with control box 5 of mounting disc 2, fixedly connected with battery 11 can be dismantled to control box 5's inside, adds 160uA through sensor 50uA + amplifier AD 50uA + singlechip 50uA + digital display 10uA, adopts 2 sections 8500mAH large capacity batteries, but twelve years of continuous operation.
The inside of control box 5 just is located the below fixedly connected with differential pressure sensor 15 of battery 11, the singlechip is installed to differential pressure sensor 15's the outside, differential pressure sensor 15's the outside and keep away from the one side of singlechip and install amplifier AD converting equipment, carries out filtering process, temperature compensation to the digital signal after the AD conversion, and the linearization is handled and is converted differential pressure value, exports the digital display through I2C.
Wherein, the bottom fixedly connected with support column 7 of control box 5, the bottom fixedly connected with base 8 of support column 7, the portable handle 6 of the equal fixedly connected with in both sides of control box 5, the convenience is carried out portable removal to whole, and is required when satisfying the use.
Wherein, the through-hole 10 of symmetric distribution is seted up in the outside of base 8, the heat dissipation seam 14 that the equidistance distributes is seted up to one side that little consumption digital display differential pressure gauge 1 was kept away from to control box 5, and the cooperation carries out inside heat dissipation and handles.
The outside fixedly connected with main control panel 12 of battery 11, the outside fixedly connected with control chip 13 of main control panel 12, little consumption digital display differential pressure gauge 1, differential pressure display panel 3, switch 4, battery 11 and differential pressure sensor 15 all with control chip 13 electric connection, have realized holistic normal operating.
Two bolts 9 are installed at the bottom of the base 8, the bolts 9 are in threaded connection with the base 8, no mechanical movable parts are arranged, the structure is compact and not loosened, the mechanical part abrasion caused by the ceaseless swinging of the mechanical differential pressure gauge during differential pressure fluctuation is avoided, the gauge error caused by mechanical abrasion is eliminated, and the verification and maintenance workload of thermal engineering personnel is reduced.
Wherein, differential pressure sensor 15's material is oil-filled body and stainless steel membrane combined material, control box 5's material is stainless steel material, and the adoption simultaneously has good damping effect because of differential pressure sensor 15 fills oil body and stainless steel membrane, has good high pressure resistance, prevents the accident that the spring pipe rupture of mechanical differential pressure meter brought.
The control terminal is electrically connected with the control chip, the sensor module is electrically connected with the differential pressure sensor 15, the amplifier module is electrically connected with the amplifier A/D conversion equipment, the single chip microcomputer module is electrically connected with the single chip microcomputer, the power supply module is electrically connected with the storage battery 11, the digital display module is electrically connected with the differential pressure display panel 3, the operation module is electrically connected with the switch 4, and the whole normal operation is realized.
Specifically, when the invention is used, the main steps of carrying out differential pressure digital display are as follows:
1. micro-power consumption sensor and 50uA constant current source processing: differential pressure of working media of water, steam, oil and gas is converted into a voltage signal through a diffused silicon oil charge sensor, and the sensor adopts a micro-power consumption sensor, wherein the working voltage is 0.8V, and the working current is 50uA, which is different from a common 5V2mA conventional sensor;
2. micro-power consumption signal conditioning and amplification: the voltage signal output by the sensor is amplified to a strong signal in a voltage standard turn which can be accurately identified by the A/D converter, and compared with a 1-2mA instrument amplifier, the amplifier adopts a 50uA instrument amplifier, the power consumption is lower, and the performance is better;
3. micro-power consumption single chip microcomputer signal processing: filtering the digital signal after A/D conversion, compensating temperature, converting the digital signal into a differential pressure value through linearization processing, and outputting the differential pressure value to a digital display through I2C;
4. micro power consumption digital display: the differential pressure digital value of I2C is converted into LCD display through a display module and displayed through a differential pressure display panel 3;
when in use, the micro-power digital display differential pressure gauge 1 and the differential pressure sensor 15 are arranged, no mechanical movable parts are arranged during arrangement, the structure is compact and not loosened, the mechanical parts are not abraded due to continuous swinging of the mechanical differential pressure gauge during differential pressure fluctuation, the gauge error caused by mechanical abrasion is eliminated, the verification and maintenance workload of thermal engineering personnel is reduced, the maintenance is really avoided, meanwhile, the differential pressure sensor 15 has good damping effect due to the fact that an oil filling body and a stainless steel film are adopted, the high-pressure resistance performance is good, accidents caused by spring tube breakage of the mechanical differential pressure gauge are prevented, and meanwhile, the anti-corrosion performance is good, through being provided with little consumption differential pressure measurement system, form complete system through control terminal, sensor module, amplifier module, single chip module, power module, digital display module and operation module cooperation, make things convenient for normal use, improved intelligent and non-maintaining effect to holistic operating efficiency has been improved, through little consumption single chip processing, realize little consumption and high accuracy effect, the maintenance work load that has significantly reduced has satisfied the needs when using.
Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a long-term non-maintaining's little consumption digital display differential pressure gauge, includes little consumption digital display differential pressure gauge (1), through little consumption digital display differential pressure gauge (1) is used for equipment fixing, and is used for guaranteeing little consumption digital display differential pressure gauge (1) moving little consumption differential pressure measurement system, through little consumption differential pressure measurement system carries out the digital display, its characterized in that: the micro-power differential pressure measurement system comprises a sensor module, an amplifier module, a single chip microcomputer module, a power supply module, a digital display module and an operation module;
the control system comprises a control terminal, an amplifier module, a power module, a digital display module, a control chip, a sensor module, an amplifier module, a power module and a power module, wherein the control terminal is electrically connected with the control chip in a two-way mode, the output end of the control chip is electrically connected with the input end of the digital display module, the output end of the control chip is electrically connected with the input end of the sensor module, the output end of the sensor module is electrically connected with the input end of the amplifier module, the output end of the amplifier module is electrically connected with the input end of the single chip microcomputer, the output end of the single chip microcomputer is electrically connected with the input end of the digital display module, the output end of the operation module is electrically connected with the input end of the single chip microcomputer, and the control terminal is electrically connected with the power module in a two-way.
2. The long-term maintenance-free digital display differential pressure gauge with micro power consumption, according to claim 1, is characterized in that: the control terminal is used for sending corresponding operation instructions to the control chip, the power supply module and the digital display module and simultaneously receiving instructions sent by the control chip, the power supply module and the digital display module;
the sensor module is used for converting differential pressure into a voltage signal, modifying bridge arm resistance on the basis of a universal diffused silicon piezoresistive oil-filled body sensor, and realizing a micro-power consumption mode of the sensor by adopting a specially designed 50uA constant current source;
the amplifier module is used for reducing the power consumption to 50uA on the basis of keeping the performance of the original instrument, ensuring that the working current is less than 50uA by adopting a high-integration-level micro-power consumption device, amplifying a weak signal into a strong signal by the amplifier module, and converting the strong signal into a digital signal by A/D (analog/digital);
the single chip microcomputer module is used for converting the digital signals into differential pressure dimensions, then linearizing and compensating the differential pressure dimensions, and outputting digital differential pressure values to the digital display module through I2C;
the power supply module is used for providing power supply for the micro-power consumption differential pressure measurement system and adopts a micro-power consumption unit;
the digital display module is used for displaying the differential pressure value through an LCD (liquid crystal display) and is used for verifying and alarming the differential pressure gauge, and the digital display module adopts a frequency-reducing special customized digital display module;
the operation module is used for sending an operation instruction to the micro-power differential pressure measurement system, executing the operation instruction through a control terminal, and simultaneously sending a corresponding operation instruction to the single chip microcomputer module.
3. The long-term maintenance-free digital display differential pressure gauge with micropower consumption is characterized in that: fixedly connected with mounting disc (2) can be dismantled in the outside of little consumption digital display differential pressure gauge (1), differential pressure display dish (3) have been seted up to the inside of mounting disc (2), switch (4) that the equidistance distributes are installed to the inside of mounting disc (2) and the below that is located differential pressure display dish (3), one side fixedly connected with control box (5) of mounting disc (2) are kept away from in little consumption digital display differential pressure gauge (1), fixedly connected with battery (11) can be dismantled in the inside of control box (5).
4. The long-term maintenance-free digital display differential pressure gauge with micropower consumption, according to claim 3, is characterized in that: the inside of control box (5) just is located below fixedly connected with differential pressure sensor (15) of battery (11), the singlechip is installed in the outside of differential pressure sensor (15), amplifier AD converting equipment is installed in the outside of differential pressure sensor (15) and the one side of keeping away from the singlechip.
5. The long-term maintenance-free digital display differential pressure gauge with micropower consumption, according to claim 3, is characterized in that: the bottom fixedly connected with support column (7) of control box (5), the bottom fixedly connected with base (8) of support column (7), portable handle (6) of the equal fixedly connected with in both sides of control box (5).
6. The long-term maintenance-free digital display differential pressure gauge with micropower consumption is characterized in that: the outside of base (8) is seted up through-hole (10) of symmetric distribution, heat dissipation seam (14) that the equidistance distributes are seted up to one side that little consumption digital display differential pressure gauge (1) was kept away from in control box (5).
7. The long-term maintenance-free digital display differential pressure gauge with micropower consumption is characterized in that: the outside fixedly connected with main control board (12) of battery (11), the outside fixedly connected with control chip (13) of main control board (12), little consumption digital display differential pressure gauge (1), differential pressure display dish (3), switch (4), battery (11) and differential pressure sensor (15) all with control chip (13) electric connection.
8. The long-term maintenance-free digital display differential pressure gauge with micropower consumption is characterized in that: two bolts (9) are installed to the bottom of base (8), bolt (9) all with base (8) threaded connection.
9. The long-term maintenance-free digital display differential pressure gauge with micropower consumption is characterized in that: the material of differential pressure sensor (15) is for filling oil body and stainless steel membrane combined material, the material of control box (5) is stainless steel material.
10. The long-term maintenance-free digital display differential pressure gauge with micropower consumption is characterized in that: the control terminal is electrically connected with the control chip, the sensor module is electrically connected with the differential pressure sensor (15), the amplifier module is electrically connected with the amplifier A/D conversion equipment, the single chip microcomputer module is electrically connected with the single chip microcomputer, the power supply module is electrically connected with the storage battery (11), the digital display module is electrically connected with the differential pressure display panel (3), and the operation module is electrically connected with the switch (4).
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| 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 |
| CN209085827U (en) * | 2018-12-17 | 2019-07-09 | 天津指南车智能装备有限公司 | A kind of differential pressure transmitter of excellent in stability |
| CN110887597A (en) * | 2019-12-04 | 2020-03-17 | 北京麦普兹微电科技有限公司 | Two-wire system intelligent differential pressure controller transmitter digital display instrument |
| CN214951935U (en) * | 2021-07-06 | 2021-11-30 | 南京星煜智控物联科技有限公司 | Differential pressure intelligent detection wireless remote transmission low-power-consumption module based on Internet of things technology |
| 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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