CN109994027A - A kind of experiment measuring device of pressure and change in flow relationship - Google Patents
A kind of experiment measuring device of pressure and change in flow relationship Download PDFInfo
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- CN109994027A CN109994027A CN201910186989.2A CN201910186989A CN109994027A CN 109994027 A CN109994027 A CN 109994027A CN 201910186989 A CN201910186989 A CN 201910186989A CN 109994027 A CN109994027 A CN 109994027A
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- 238000002474 experimental method Methods 0.000 title claims abstract description 30
- 238000005303 weighing Methods 0.000 claims abstract description 15
- 239000004973 liquid crystal related substance Substances 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 2
- 230000005622 photoelectricity Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/26—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting optical wave
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/12—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of liquids or gases
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Abstract
The embodiment of the present invention discloses the measuring device of a kind of experiment pressure and change in flow relationship, is related to physics facility field, for measure fluid pressure values and flow speed value and invent.Described device includes: gas velocity acquisition component, gas pressure acquisition component；The first plank, the second plank of gas passage are placed in parallel, and are placed in parallel perpendicular to bottom plate, bottom plate and top plate；The connecting shaft of gas velocity acquisition component passes through the first plank, the second plank, and is put on bracket, and for the installation of three vane components in connecting shaft, the photoelectric code disk of photoelectric measure speeding sensor is installed on connection the tip of the axis；The weighing pressure sensor of gas pressure acquisition component is installed on the first plank or the second plank, and is electrically connected with A/D converter, and gas generator is installed on bottom plate；Photoelectric measure speeding sensor, A/D converter respectively with monolithic mechatronics；Power supply unit and photoelectric measure speeding sensor, A/D converter, monolithic mechatronics.The present invention is suitable for Physical Experiment.
Description
Technical field
The present invention relates to the measurements that pressure and change in flow relationship are used in physics facility field more particularly to a kind of experiment
Device.
Background technique
Currently, when carrying out the relationship of verifying gas pressure intensity and flow velocity between the two in physics laboratory, by simple real
It tests and qualitatively verifies gas pressure intensity and the relationship of flow velocity between the two, and some experiments are simple to operation, can show preferably
Effect；And then there is the disadvantages of cumbersome, time and effort consuming in some experiments, the effect of presentation is unobvious, and experimental result
Human factor is affected, multi-pass operation, it is difficult to obtain identical effect.
And is belonged to the relationship of flow velocity between the two by existing experiment verifying gas pressure intensity and qualitatively, abstractively said
Both bright relationship, and whole process requires manually to participate in, it is not easy to operate.
Summary of the invention
In view of this, the embodiment of the present invention provides the measuring device of a kind of experiment pressure and change in flow relationship, use
The device can quantitative measurment pressure and flow velocity, and then intuitively illustrate the variation relation of pressure and flow velocity, it is existing to solve
Qualitatively, abstractively illustrate pressure and change in flow relationship in Physical Experiment, and whole process requires manually to participate in, and is not easy to grasp
The problem of making.
The embodiment of the present invention provides the measuring device of a kind of experiment pressure and change in flow relationship, and described device includes:
Gas passage, gas velocity acquisition component, gas pressure acquisition component, gas generator, single-chip microcontroller, liquid crystal display, in real time
Clock, power supply unit；
The gas passage includes the first plank, the second plank, bottom plate, top plate, is put down between the first plank and the second plank
Row is placed, and perpendicular to bottom plate, is placed in parallel between bottom plate and top plate, the opposite entrance and exit of forming position, the first wood
Plate and the second plank are provided with through-hole；
The gas velocity acquisition component includes bracket, connecting shaft, three vane components, photoelectric measure speeding sensor, the company
Through-hole of the spindle on the through-hole, the second plank of the first plank, and be put on bracket, bracket is located at the outside of gas passage simultaneously
It being fixed on bottom plate, connecting shaft is equipped with three vane components and photoelectric measure speeding sensor, and three vane components are located in gas passage,
The photoelectric code disk of photoelectric measure speeding sensor is installed on connection the tip of the axis, photoelectric measure speeding sensor and monolithic mechatronics；
The gas pressure acquisition component includes weighing pressure sensor and A/D converter, weighing pressure sensor installation
In the first plank or the second plank, and it is located in gas passage, weighing pressure sensor is electrically connected with A/D converter, A/D conversion
Device and monolithic mechatronics；
The gas generator is installed on bottom plate, and the gas vent direction of gas generator is identical as gas passage direction,
Gas vent is equal to connecting shaft to the distance of bottom plate at a distance from bottom plate, and between first plank and the second plank；
The connecting shaft, weighing pressure sensor, the gas vent of gas generator and being equidistant for bottom plate；
The liquid crystal display and monolithic mechatronics；
The power supply unit and photoelectric measure speeding sensor, A/D converter, single-chip microcontroller, liquid crystal display, real-time clock are electrically connected
It connects.
The length and width of a kind of specific implementation according to an embodiment of the present invention, first plank and the second plank, thick phase
Deng.
The vertical range of a kind of specific implementation according to an embodiment of the present invention, first plank and the second plank is big
In the axial width of three vane components.
A kind of specific implementation according to an embodiment of the present invention, the through-hole of first plank is in the position of the first plank
It is identical in the position of the second plank as the through-hole of the second plank, and diameter is greater than the diameter of connecting shaft.
A kind of specific implementation according to an embodiment of the present invention, the through-hole of first plank and the through-hole of the second plank
It is located at the center of the first plank and the second plank.
A kind of specific implementation according to an embodiment of the present invention, the length and width of the bottom plate be respectively greater than the length of top plate,
It is wide.
A kind of specific implementation according to an embodiment of the present invention, the single-chip microcontroller, liquid crystal display, real-time clock, electricity
Source block is installed on the first plank or the second board surface and is located on the outside of gas passage.
A kind of experiment provided in an embodiment of the present invention measuring device of pressure and change in flow relationship, by being sent out by gas
The gas gas coming through channel with speed that raw device generates, is arranged in gas velocity acquisition component, gas in gas passage
Pressure acquisition component acquires gas velocity signal and gas pressure signal respectively, then by gas velocity signal collected and pressure
Signal inputs single-chip microcontroller, is handled by single-chip microcontroller, and by result in liquid crystal display screen display, while Real Time Clock Display is real
When the time, the apparatus structure is simple and easily operated, the pressure values and flow speed value of quantitative measurment fluid are capable of using the device,
The speed of gas, available multiple groups pressure values and velocity amplitude are generated by regulating gas generator, and then can be quantified, intuitively
Ground illustrates the relationship of pressure and flow velocity, with solve in existing Physical Experiment qualitatively, abstractively illustrate pressure and change in flow
Relationship, and whole process requires manually to participate in, problem not easy to operate.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural representation of the measuring device embodiment of experiment pressure provided by the invention and change in flow relationship
Figure；
Fig. 2 is the gas passage knot of the measuring device embodiment of experiment pressure provided by the invention and change in flow relationship
Structure schematic diagram；
Fig. 3 is that experiment provided by the invention is adopted with pressure and the gas velocity of the measuring device embodiment of change in flow relationship
Collect component structure diagram；
Fig. 4 is that experiment provided by the invention is adopted with pressure and the gas pressure of the measuring device embodiment of change in flow relationship
Collect component structure diagram；
Fig. 5 is that the gas of the measuring device embodiment of the experiment pressure provided and change in flow relationship of the invention occurs
Device structural schematic diagram.
Specific embodiment
The embodiment of the present invention is described in detail with reference to the accompanying drawing.
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
The present embodiment provides the measuring devices of a kind of experiment pressure and change in flow relationship, comprising: gas passage 1, gas
Body speed acquisition component 2, gas pressure acquisition component 3, gas generator 4, single-chip microcontroller 5, liquid crystal display 6, real-time clock 7,
Power supply unit 8；
The gas passage 1 includes the first plank 101, the second plank 102, bottom plate 103, top plate 104, the first plank 101
And second be placed in parallel between plank 102, and perpendicular to bottom plate 103, is placed in parallel between bottom plate 103 and top plate 104, is formed
The opposite entrance and exit in position, the first plank 101 and the second plank 102 are provided with through-hole 1011 and through-hole 1021；
The gas velocity acquisition component 2 includes bracket 201, connecting shaft 202, three vane components 203, photoelectric velocity measurement sensing
Device 204, the connecting shaft 202 pass through the through-hole 1012 of the through-hole 1011 of the first plank 101, the second plank 102, and are put in bracket
On 201, bracket 201 is located at the outside of gas passage 1 and is fixed on bottom plate 103, and connecting shaft 202 is equipped with three vane components
203 and photoelectric measure speeding sensor 204, three vane components 203 be located in gas passage 1, the photoelectric code of photoelectric measure speeding sensor 204
Disk 2041 is installed on the end of connecting shaft 202, and photoelectric measure speeding sensor 204 is electrically connected with single-chip microcontroller 5；
The gas pressure acquisition component 3 includes weighing pressure sensor 301 and A/D converter 302, pressure sensing of weighing
Device 301 is installed on the first plank 101 or the second plank 102, and is located in gas passage 1, and weigh pressure sensor 301 and A/D
Converter 302 is electrically connected, and A/D converter 302 is electrically connected with single-chip microcontroller 5；
The gas generator 4 is installed on bottom plate 103,401 direction of gas vent of gas generator 4 and gas passage 1
Direction is identical, and gas vent 401 is equal to the distance that connecting shaft 202 arrives bottom plate 103 at a distance from bottom plate 103, and is located at described the
Between one plank 101 and the second plank 102；
The connecting shaft 202, weighing pressure sensor 301, gas generator 4 gas vent 401 and bottom plate 103 away from
From equal；
The liquid crystal display 6 is connect with monolithic electromechanics 5；
The power supply unit 8 and photoelectric measure speeding sensor 204, A/D converter 302, single-chip microcontroller 5, liquid crystal display 6, it is real
Shi Shizhong 7 is electrically connected.
In embodiments of the present invention, as optional embodiment, single-chip microcontroller 5 can be STC89C52 single chip, liquid crystal display
Screen 6 can be LCD12864 liquid crystal display, and real-time clock 7 can be DS1302 real-time clock, and A/D converter 302 can be HX711
Ad/da converter, the optional 5kg of range for pressure sensor 301 of weighing.
A kind of experiment provided in an embodiment of the present invention measuring device of pressure and change in flow relationship, by being sent out by gas
The gas gas coming through channel 1 with speed that raw device 4 generates, be arranged in gas velocity acquisition component 2 in gas passage 1,
Gas pressure acquisition component 3 acquires gas velocity signal and gas pressure signal respectively, then by gas velocity signal collected
With pressure signal input single-chip microcontroller 5, handled by single-chip microcontroller, and result is shown on liquid crystal display 6, at the same it is real-time when
Clock 7 shows that the real-time time apparatus structure is simple and easily operated, and the pressure values of quantitative measurment fluid are capable of using the device
And flow speed value, generate the speed of gas by regulating gas generator, available multiple groups pressure values and velocity amplitude, and then can be with
Relationship that is quantitative, intuitively illustrating pressure and flow velocity, with solve qualitatively, abstractively to illustrate in existing Physical Experiment pressure with
Change in flow relationship, and whole process requires manually to participate in, problem not easy to operate.
In embodiments of the present invention, the length and width of the first plank 101 and the second plank 102, thickness are equal, and device can be made whole
Body structure is more beautiful.
In embodiments of the present invention, the vertical range of the first plank 101 and the second plank 102 is greater than three vane components 203
Axial width, when rotating three vane components 203 by gas-powered, not by the shadow of the first plank 101 and the second plank 102
It rings, rotates more flexible.
In embodiments of the present invention, position and second plank of the through-hole 1011 of the first plank 101 in the first plank 101
102 through-hole 1021 is identical in the position of the second plank 102, and diameter is greater than the diameter of connecting shaft 202, the first plank 101
Through-hole 1011 is identical in the position of the second plank 102 as the through-hole 1021 of the second plank 102 in the position of the first plank 101, makes
Connecting shaft 202 is free to the through-hole 1021 of through-hole 1011 and the second plank 102 across the first plank 101, and then is put in
On bracket 201, and the through-hole 1011 of the first plank 101 exists in the position of the first plank 101 and the through-hole 1021 of the second plank 102
The position of second plank 102 is identical, and connecting shaft is vertical with the wind direction that gas generator generates, and then guarantees three vane components 203
In windward side, to keep the collected speed model of photoelectric measure speeding sensor 204 more acurrate.
In embodiments of the present invention, the through-hole 1021 of the through-hole 1011 of the first plank 101 and the second plank 102 is located at
The center of first plank 101 and the second plank 102, the entrance and exit in the position opposing gas channel 1 farther out, this
Sample eliminates influence of the external environment to experiment, by gas velocity acquisition component 2 and the collected phase of gas pressure acquisition component 3
Answer result more accurate.
In embodiments of the present invention, the length and width of bottom plate 103 is respectively greater than the length and width of top plate, convenient for installing branch on bottom plate
Frame 201, gas generator 4.
In embodiments of the present invention, single-chip microcontroller 5, liquid crystal display 6, real-time clock 7, power supply unit 8 are installed on the first wood
Plate 101 or 102 surface of the second plank and it is located at the outside of gas passage 1, in this way, keeping device integrally more compact.
The specifically used mode of the present embodiment and effect are as follows:
Power supply unit is opened, is photoelectric measure speeding sensor 204, weighing pressure sensor 301, A/D converter 302, monolithic
Machine 5, liquid crystal display 6, real-time clock 7 are powered.Start gas generator and generate the gas that wind speed is 5m/s, the gas is by gas
The entrance 105 in channel 1 flows into, driving three vane components 203 rotation, to be installed on connecting shaft 202 by the drive of connecting shaft 202
The photoelectric code disk 2041 of end do synchronous rotary, collected signal is passed to single-chip microcontroller 5 by photoelectric measure speeding sensor 204, by
Single-chip microcontroller 5 carries out data processing to it and shows the wind speed numerical value that processing obtains by liquid crystal display 6.
Weighing pressure sensing when gas is flowed through from gas passage 1, on the first plank 101 or the second plank 102
Device 301 acquires the variable signal that gas flows through forward and backward pressure, which is passed to A/D converter 302 and carries out modulus signal turn
It changes, then transformation result is passed in single-chip microcontroller 5 and carries out data processing, and the pressure value that data processing is obtained is in liquid crystal display
6 display of screen.
Meanwhile being controlled by single-chip microcontroller 5, the real-time time that real-time clock 7 provides is shown in liquid crystal display 6, Jin Ershi
The temporal informations such as year, month, day, hour, min, the second of operation experiments can be recorded in real time by testing participant.
The speed that gas is generated by regulating gas generator, is tested according to above-mentioned usage mode, available more
Group pressure values and velocity amplitude, and then pressure and change in flow relation curve can be made, pass through pressure and change in flow relation curve
Sum up to draw a conclusion: 1. the bigger position of gas flow rate, pressure are smaller.2. the smaller position of gas flow rate, pressure are bigger.
The present embodiment, the measuring device of the pressure provided through the invention and change in flow relationship can be measured quantitatively
The multiple groups numerical value of pressure and flow velocity, and it is bent according to the two dimension that the numeric renderings of multiple groups pressure and flow velocity obtain pressure and pressure
Line, by the curve, it is concluded that the variation relation of pressure and flow velocity.The present apparatus can quantify, intuitively illustrate pressure with
The variation relation of flow velocity, and present apparatus structure is simple, easily operated.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (7)
1. the measuring device that pressure and change in flow relationship are used in a kind of experiment, which is characterized in that described device includes: that gas is logical
Road, gas velocity acquisition component, gas pressure acquisition component, gas generator, single-chip microcontroller, liquid crystal display, real-time clock, electricity
Source block；
The gas passage includes the first plank, the second plank, bottom plate, top plate, is put in parallel between the first plank and the second plank
Set, and perpendicular to bottom plate, be placed in parallel between bottom plate and top plate, the opposite entrance and exit of forming position, the first plank and
Second plank is provided with through-hole；
The gas velocity acquisition component includes bracket, connecting shaft, three vane components, photoelectric measure speeding sensor, the connecting shaft
Through-hole on the through-hole, the second plank of the first plank, and be put on bracket, bracket is located at the outside of gas passage and fixation
On bottom plate, connecting shaft is equipped with three vane components and photoelectric measure speeding sensor, and three vane components are located in gas passage, photoelectricity
The photoelectric code disk of velocity sensor is installed on connection the tip of the axis, photoelectric measure speeding sensor and monolithic mechatronics；
The gas pressure acquisition component includes weighing pressure sensor and A/D converter, and weighing pressure sensor is installed on the
One plank or the second plank, and be located at gas passage in, weighing pressure sensor be electrically connected with A/D converter, A/D converter and
Monolithic mechatronics；
The gas generator is installed on bottom plate, and the gas vent direction of gas generator is identical as gas passage direction, gas
The distance for being equal to connecting shaft at a distance from bottom plate to bottom plate is exported, and between first plank and the second plank；
The connecting shaft, weighing pressure sensor, the gas vent of gas generator and being equidistant for bottom plate；
The liquid crystal display and monolithic mechatronics；
The power supply unit and photoelectric measure speeding sensor, A/D converter, single-chip microcontroller, liquid crystal display, real-time clock electrical connection.
2. the measuring device that pressure and change in flow relationship are used in experiment according to claim 1, which is characterized in that described the
The length and width of one plank and the second plank, thickness are equal.
3. the measuring device that pressure and change in flow relationship are used in experiment according to claim 1 or 2, which is characterized in that institute
The vertical range for stating the first plank and the second plank is greater than the axial width of three vane components.
4. the measuring device that pressure and change in flow relationship are used in experiment according to claim 1 or 3, which is characterized in that institute
The through-hole for stating the first plank is identical in the position of the second plank as the through-hole of the second plank in the position of the first plank, and diameter is big
In the diameter of connecting shaft.
5. the measuring device that pressure and change in flow relationship are used in experiment according to claim 1, which is characterized in that described the
The through-hole of the through-hole of one plank and the second plank is located at the center of the first plank and the second plank.
6. the measuring device that pressure and change in flow relationship are used in experiment according to claim 1, which is characterized in that the bottom
The length and width of plate is respectively greater than the length and width of top plate.
7. the measuring device that pressure and change in flow relationship are used in experiment according to claim 1, which is characterized in that the list
Piece machine, liquid crystal display, real-time clock, power supply unit are installed on the first plank or the second board surface and are located at outside gas passage
Side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186989.2A CN109994027A (en) | 2019-03-12 | 2019-03-12 | A kind of experiment measuring device of pressure and change in flow relationship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186989.2A CN109994027A (en) | 2019-03-12 | 2019-03-12 | A kind of experiment measuring device of pressure and change in flow relationship |
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| Publication Number | Publication Date |
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| CN109994027A true CN109994027A (en) | 2019-07-09 |
Family
ID=67130379
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910186989.2A Pending CN109994027A (en) | 2019-03-12 | 2019-03-12 | A kind of experiment measuring device of pressure and change in flow relationship |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3285062A (en) * | 1963-08-05 | 1966-11-15 | Scott Aviation Corp | Educational turbofan pressure and energy measuring apparatus |
| FR2399080A1 (en) * | 1977-07-28 | 1979-02-23 | Mitic Milun | Fluid pressure and velocity variation monitor - using resilient chamber acted on externally by working fluid |
| CN101635109A (en) * | 2009-09-04 | 2010-01-27 | 哈尔滨工业大学 | Open experiment device for teaching local resistance measurement during air flowing |
| CN101673484A (en) * | 2009-09-30 | 2010-03-17 | 浙江大学 | Self-circulating electrical-testing total hydrostatic pressure tester |
| CN103559819A (en) * | 2013-10-23 | 2014-02-05 | 国家电网公司 | Method and device for measuring pressure distribution |
| KR101390260B1 (en) * | 2012-12-18 | 2014-05-07 | 조예은 | Device for measuring diffusion velocity of gas and method thereof |
| CN204965858U (en) * | 2015-08-21 | 2016-01-13 | 杨小玲 | Gas intensity of pressure probes device with velocity of flow relation |
| CN106875789A (en) * | 2015-12-14 | 2017-06-20 | 重庆彩炽文化传媒有限公司 | A kind of hydrodynamics teaching experiment device |
| CN106910400A (en) * | 2017-03-23 | 2017-06-30 | 西华师范大学 | Gas flow rate and pressure relation demonstration instrument |
| CN210466926U (en) * | 2019-03-12 | 2020-05-05 | 菏泽学院 | Measuring device for pressure and flow velocity change relation for experiment |
-
2019
- 2019-03-12 CN CN201910186989.2A patent/CN109994027A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3285062A (en) * | 1963-08-05 | 1966-11-15 | Scott Aviation Corp | Educational turbofan pressure and energy measuring apparatus |
| FR2399080A1 (en) * | 1977-07-28 | 1979-02-23 | Mitic Milun | Fluid pressure and velocity variation monitor - using resilient chamber acted on externally by working fluid |
| CN101635109A (en) * | 2009-09-04 | 2010-01-27 | 哈尔滨工业大学 | Open experiment device for teaching local resistance measurement during air flowing |
| CN101673484A (en) * | 2009-09-30 | 2010-03-17 | 浙江大学 | Self-circulating electrical-testing total hydrostatic pressure tester |
| KR101390260B1 (en) * | 2012-12-18 | 2014-05-07 | 조예은 | Device for measuring diffusion velocity of gas and method thereof |
| CN103559819A (en) * | 2013-10-23 | 2014-02-05 | 国家电网公司 | Method and device for measuring pressure distribution |
| CN204965858U (en) * | 2015-08-21 | 2016-01-13 | 杨小玲 | Gas intensity of pressure probes device with velocity of flow relation |
| CN106875789A (en) * | 2015-12-14 | 2017-06-20 | 重庆彩炽文化传媒有限公司 | A kind of hydrodynamics teaching experiment device |
| CN106910400A (en) * | 2017-03-23 | 2017-06-30 | 西华师范大学 | Gas flow rate and pressure relation demonstration instrument |
| CN210466926U (en) * | 2019-03-12 | 2020-05-05 | 菏泽学院 | Measuring device for pressure and flow velocity change relation for experiment |
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