CN208921687U - A kind of high-precision real ground gas dynamic detection system - Google Patents
A kind of high-precision real ground gas dynamic detection system Download PDFInfo
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- CN208921687U CN208921687U CN201821607372.0U CN201821607372U CN208921687U CN 208921687 U CN208921687 U CN 208921687U CN 201821607372 U CN201821607372 U CN 201821607372U CN 208921687 U CN208921687 U CN 208921687U
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- gas
- half seat
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- gathering mask
- ring
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Abstract
A kind of the utility model discloses high-precision real gas dynamic detection system, there are two sieve pores of ventilating for symmetrical setting in gas gathering mask, one of ventilation sieve pore is connect with air inlet pipe, another ventilation sieve pore is connect with escape pipe, gas-dynamic detection system further includes middle control chip, battery, temperature control device, wind speed and direction control device and rainfall simulator, temperature control device includes temperature inductor and semiconductor cooling backing group, wind speed and direction control device includes wind speed wind direction sensor, a motor is fixed on upper half seat, the drive shaft of motor passes through upper half seat and lower half seat threaded engagement cooperates, rainfall simulator includes collecting ring, water level sensor, peristaltic pump, water tank and gondola water faucet, middle control chip can be according to the signal of water level sensor, control the number of revolutions of peristaltic pump, water to make gondola water faucet spray is fixed Amount.The utility model has the advantages that the gaseous environment of detection data accurately, in dynamic case is close with the external world.
Description
Technical field
The invention belongs to the technical fields of gas detection equipment, and in particular to a kind of high-precision real ground gas dynamic detection system
System.
Background technique
In detection gas volatile quantity on the spot, gas detection case will use, its working principle is that by gas detection case cover
On object, the gas that object volatilizes can be full of gas detection case, install detector in gas detection case, in real time
The situation of change of target gas content in gas detection case is recorded, still, this gas detection case in the detection process, can change
The environment such as wind direction, wind speed, humidity, temperature and rainfall around object, lead to object volatilization gas can not be complete
It is consistent with the external world, testing result inaccuracy.
Summary of the invention
The technical problem to be solved by the present invention is to solve the above shortcomings of the prior art and to provide a kind of detection data essences
Really, high-precision real ground gas dynamic detection system similar in the gaseous environment in dynamic case and the external world.
To realize the above-mentioned technical purpose, the technical scheme adopted by the invention is as follows:
A kind of high-precision real ground gas dynamic detection system, in which: including annular base and be buckled to bowl-shape gas gathering mask, collection
The lower edge of gas hood and the inner ring surface of annular base are tightly connected, and are fixed with air inlet pipe and outlet on the upper half seat of annular base
Pipe is equipped with first gas detector in air inlet pipe, is equipped with second gas detector on escape pipe, in air inlet pipe or escape pipe
Air pump is installed, air pump makes gas in gas gathering mask from escape pipe stream for the gas outside gas gathering mask to be pumped into gas gathering mask
Out, there are two sieve pores of ventilating, one of ventilation sieve pore to connect with air inlet pipe for symmetrical setting in gas gathering mask, another is logical
Air sifter hole is connect with escape pipe, and gas-dynamic detection system further includes middle control chip, battery, temperature control device, wind speed and direction
Control device and rainfall simulator, wherein middle control chip and battery are fixed on upper half seat upper surface, temperature control device packet
Include temperature inductor and semiconductor cooling backing group, temperature inductor is fixed on gas gathering mask, for detecting inside gas gathering mask and
External temperature, temperature inductor is connect with middle control chip, and temperature signal is transferred to middle control chip, semiconductor cooling backing group
One end of semiconductor cooling backing including several serial or parallel connections, semiconductor cooling backing is located in gas gathering mask, and the other end is located at
Outside gas gathering mask, semiconductor cooling backing is connect with middle control chip and battery respectively, and middle control chip can control semiconductor cooling backing on-off
Electricity and current direction, wind speed and direction control device include wind speed wind direction sensor, and wind speed wind direction sensor is fixed on upper half seat,
And connect with middle control chip signal, annular base is made of upper half seat and lower half seat, upper half seat and lower half seat up and down detent fix,
Horizontal rotatable cooperation is fixed with a motor on upper half seat, and the drive shaft of motor passes through upper half seat and matches with lower half seat threaded engagement
It closes, is provided with a circle thread at the drive shaft cooperation of lower half seat and motor, when so that motor rotating, upper half seat and the rotation of lower half seat
Turn, rainfall simulator includes collecting ring, water level sensor, peristaltic pump, water tank and gondola water faucet, and collecting ring is vertical ring junction
Structure, collecting ring lower end are sealedly and fixedly connected with gas collection cover outer surface, and a circle catchment area, water level are crossed on gas collection cover outer surface
Inductor is provided with the different water level induction point of several height, when water covers water level induction point, water level sense on collecting ring
Answer device that can incude height of water level, and send the signal to middle control chip, peristaltic pump and water tank are fixed on upper half seat, water tank with it is compacted
Dynamic pump connection, for wriggling water supplying pump, peristaltic pump is connect by pipeline with gondola water faucet, and gondola water faucet is mounted in gas gathering mask, middle control core
Piece can control the number of revolutions of peristaltic pump according to the signal of water level sensor, so that the water for spraying gondola water faucet is quantitative.
To optimize above-mentioned technical proposal, the concrete measure taken further include:
The lower surface of above-mentioned lower half seat is provided with docking groove, and docking groove is used to connect with external-hanging structure, external-hanging structure
Upper surface is provided with the docking convex head docked with docking groove, and when docking convex head is caught in docking groove, lower half seat and external-hanging structure are sealed
Fitting is fixed.
Above-mentioned external-hanging structure is buoyancy ring, and buoyancy ring is made of foam or inflating rubber, and buoyancy ring upper end is fixed with firmly
Matter plate, docking convex head are fixed on hard plate upper surface, and the floatage energy of buoyancy ring makes gas-dynamic detection system float on water
Face.
External-hanging structure is plate ring, and plate ring is made of vertical annular slab, and plate ring lower surface is sharp, plate ring upper end
It is fixed with hard plate, docking convex head is fixed on hard plate upper surface, and plate ring can be inserted into soil, makes immediately below gas gathering mask
Soil and extraneous seal isolation.
Above-mentioned external-hanging structure is rubber ring, and rubber ring lower surface is flexible glue, can make gas gathering mask with hard ground palette
The hard ground of underface and extraneous seal isolation, rubber ring upper end are fixed with hard plate, and docking convex head is fixed on hard plate
Upper surface.
Above-mentioned middle control chip is single-chip microcontroller, model STM32L series；Battery is dc-battery.
Above-mentioned gas gathering mask is translucent cover.
Above-mentioned first gas detector and second gas detector is ammonia detector.
Above-mentioned battery also connects with air pump, middle control chip, temperature inductor, motor, water level sensor and peristaltic pump respectively
It connecing, and powers for it, middle control chip is also connect with air pump, and controls the pump gas velocity degree of air pump, and middle control chip is also connected to motor,
And control the turnning circle of motor.
Above-mentioned motor is stepper motor.
A kind of high-precision real of the invention ground gas dynamic detection system, changes traditional gas detection case and examines in cabinet
The mode for surveying gas concentration is calculated in case using the gas concentration of detection air inlet and air outlet according to difference between the two
Gaseous volatilization amount, the gas outside gas gathering mask is pumped into gas gathering mask by air pump so that gas gathering mask in realize gas flowing, protect
The humidity for holding the gas in gas gathering mask is consistent with the external world, detects wind direction and wind velocity, middle control chip controls by wind speed wind direction sensor
Motor rotation makes upper half seat and the opposite sliding of lower half seat change air inlet and the outlet direction to change the position of ventilation sieve pore
Become, reach the purpose for changing wind direction, middle control chip passes through the operation rate for changing air pump again, reaches the change of wind speed, make gas collection
It is consistent to cover inside and outside wind speed and direction, gas gathering mask inside and outside temperature difference can be measured by temperature inductor, middle control chip passes through semiconductor cooling
Backing group is heated to gas in gas gathering mask or cooling, keeps internal-external temperature difference consistent, and semiconductor cooling backing, can be with according to paltie effect
By changing current direction, the one end controlled in gas gathering mask is hot end or cold end, and compact structure, efficiency is higher, is suitable for use in this
Air-conditioning system is used as on device, the present invention can be examined with simulated rainfall, when external rainfall by collecting ring and water level sensor
Rainfall is surveyed, middle control chip sprays the water of equivalent by peristaltic pump into gas gathering mask, and gas gathering mask of the invention is transparent, sunlight
Can normally irradiate into gas gathering mask, the present invention fully take into account wind speed inside and outside gas gathering mask, wind direction, temperature, humidity, rainfall and
The parameters such as illumination, and balanced one by one, so that the real gas volatilization situation of the measured object in gas gathering mask is waved with objective gas
Heat condition is consistent, to realize high-acruracy survey.The present invention also has several external-hanging structures, respectively corresponds aquatic measurement, soft
Matter land survey and hard land survey, guarantee the leakproofness of gas gathering mask, and the device of the invention is made to be adapted to a variety of landform rings
Border.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is top view of the invention；
Fig. 3 is the structure chart of buoyancy ring；
Fig. 4 is the structure chart of plate ring；
Fig. 5 is the structure chart of rubber ring.
Appended drawing reference therein are as follows: annular base 1, upper half seat 1a, lower half seat 1b, air inlet pipe 11, escape pipe 12, the first gas
Detector 13, second gas detector 14, air pump 15, docking groove 16, gas gathering mask 2, ventilation sieve pore 21, middle control chip 3, battery
4, temperature control device 5, temperature inductor 51, semiconductor cooling backing group 52, wind speed and direction control device 6, wind speed and direction sensing
It is device 61, motor 62, rainfall simulator 7, collecting ring 71, water level sensor 72, peristaltic pump 73, water tank 74, gondola water faucet 75, plug-in
Structure 8, docking convex head 81, buoyancy ring 82, plate ring 83, rubber ring 84.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
A kind of high-precision real of the invention ground gas dynamic detection system, in which: including annular base 1 and be buckled to bowl-shape
Gas gathering mask 2, the lower edge of gas gathering mask 2 and the inner ring surface of annular base 1 are tightly connected, fixed on the upper half seat 1a of annular base 1
There are air inlet pipe 11 and escape pipe 12, first gas detector 13 is installed in air inlet pipe 11, is equipped with second on escape pipe 12
Air pump 15 is installed, air pump 15 is for the gas outside gas gathering mask 2 to be pumped on detector 14, air inlet pipe 11 or escape pipe 12
In gas gathering mask 2, and flow out the gas in gas gathering mask 2 from escape pipe 12, there are two ventilations for symmetrical setting in gas gathering mask 2
Sieve pore 21, one of ventilation sieve pore 21 are connect with air inlet pipe 11, another ventilation sieve pore 21 is connect with escape pipe 12, and gas is dynamic
State detection system further includes middle control chip 3, battery 4, temperature control device 5, wind speed and direction control device 6 and rainfall simulation dress
Set 7, wherein middle control chip 3 and battery 4 are fixed on the upper surface upper half seat 1a, and temperature control device 5 includes 51 He of temperature inductor
Semiconductor cooling backing group 52, temperature inductor 51 is fixed on gas gathering mask 2, for detecting the temperature of 2 inside of gas gathering mask and outside
Degree, temperature inductor 51 are connect with middle control chip 3, and temperature signal is transferred to middle control chip 3, and semiconductor cooling backing group 52 is wrapped
The semiconductor cooling backing of several serial or parallel connections is included, one end of semiconductor cooling backing is located in gas gathering mask 2, and the other end is located at collection
Outside gas hood 2, semiconductor cooling backing is connect with middle control chip 3 and battery 4 respectively, and it is logical that middle control chip 3 can control semiconductor cooling backing
Power-off and current direction, wind speed and direction control device 6 include wind speed wind direction sensor 61, and wind speed wind direction sensor 61 is fixed on
It on half 1a, and is connect with middle 3 signal of control chip, annular base 1 is made of upper half seat 1a and lower half seat 1b, and upper half seat 1a is under
Half 1b or more detent fix, horizontal rotatable cooperation, is fixed with a motor 62 on upper half seat 1a, the drive shaft of motor 62 passes through
Upper half seat 1a and lower half seat 1b threaded engagement cooperate, and are provided with a circle screw thread at the drive shaft cooperation of lower half seat 1b and motor 62
Tooth, when so that motor 62 rotating, upper half seat 1a and lower half seat 1b rotation, rainfall simulator 7 include collecting ring 71, water level induction
Device 72, peristaltic pump 73, water tank 74 and gondola water faucet 75, collecting ring 71 are vertical ring structure, 71 lower end of collecting ring and gas gathering mask 2
Outer surface is sealedly and fixedly connected, and a circle catchment area is crossed on 2 outer surface of gas gathering mask, water level sensor 72 is on collecting ring 71
It is provided with the different water level induction point of several height, when water covers water level induction point, water level sensor 72 can incude water level
Highly, and middle control chip 3 is sent the signal to, peristaltic pump 73 and water tank 74 are fixed on upper half seat 1a, water tank 74 and peristaltic pump
73 connections, supply water for peristaltic pump 73, and peristaltic pump 73 is connect by pipeline with gondola water faucet 75, and gondola water faucet 75 is mounted in gas gathering mask 2,
Middle control chip 3 can control the number of revolutions of peristaltic pump 73 according to the signal of water level sensor 72, so that gondola water faucet 75 be made to spray
Water is quantitative.
In embodiment, the lower surface of lower half seat 1b is provided with docking groove 16, and docking groove 16 is used to connect with external-hanging structure 8,
The upper surface of external-hanging structure 8 is provided with the docking convex head 81 docked with docking groove 16, when docking convex head 81 is caught in docking groove 16, under
Half 1b is fixed with 8 palette of external-hanging structure.
In embodiment, external-hanging structure 8 is buoyancy ring 82, and buoyancy ring 82 is made of foam or inflating rubber, on buoyancy ring 82
End is fixed with hard plate, and docking convex head 81 is fixed on hard plate upper surface, and the floatage energy of buoyancy ring 82 examines gas-dynamic
Examining system floats on the water surface.
External-hanging structure 8 is plate ring 83, and plate ring 83 is made of vertical annular slab, and 83 lower surface of plate ring is sharp, is inserted
83 upper end of plate ring is fixed with hard plate, and docking convex head 81 is fixed on hard plate upper surface, and plate ring 83 can be inserted into soil,
Make 2 underface soil of gas gathering mask and extraneous seal isolation.
In embodiment, external-hanging structure 8 be rubber ring 84,84 lower surface of rubber ring be flexible glue, can with hard ground palette,
Make the hard ground and extraneous seal isolation immediately below gas gathering mask 2,84 upper end of rubber ring is fixed with hard plate, and docking convex head 81 is solid
It is scheduled on hard plate upper surface.
In embodiment, middle control chip 3 is single-chip microcontroller, model STM32L series；Battery 4 is dc-battery.
In embodiment, gas gathering mask 2 is translucent cover.
In embodiment, first gas detector 13, second gas detector 14 is ammonia detector.
In embodiment, battery 4 also respectively with air pump 15, middle control chip 3, temperature inductor 51, motor 62, water level sensor
72 and peristaltic pump 73 connect, and power for it, middle control chip 3 is also connect with air pump 15, and controls the pump gas velocity degree of air pump 15, in
Control chip 3 is also connect with motor 62, and controls the turnning circle of motor 62.
In embodiment, motor 62 is stepper motor.
Middle control chip 3 of the invention, battery 4, semiconductor cooling backing group 52 cover protection with a cover, have on cover
Venthole.
Application method of the invention is as follows:
By taking the fowl and animal excrement volatilization ammonia amount for detecting per surface area on manure of livestock and poultry mountain as an example, hung below lower half seat 1b
The apparatus of the present invention spliced, are then placed in the target area on manure of livestock and poultry mountain by upper plate ring 83, and plate ring 83 is inserted into poultry
In excrement, keep the fowl and animal excrement inside and outside gas gathering mask 2 completely isolated, wind speed wind direction sensor 61 detects wind direction and wind velocity, water level induction
Device 72 detects the water height in collecting ring 71, and temperature inductor 51 detects 2 internal and external temperature of gas gathering mask, and middle control chip 3 is according to upper
The testing result of structure is stated, control motor 62 operates, and adjusts wind direction in gas gathering mask 2, and control air pump 15 operates, and adjusts wind speed, control
Peristaltic pump 73 processed works, and keeps rain fall inside and outside gas gathering mask 2 consistent, controls the power on/off of semiconductor cooling backing group 52, adjustment temperature
The ammonia gas that degree, first gas detector 13 and 14 persistent collection air inlet pipe 11 of second gas detector and escape pipe 12 pass through
Concentration, and external signal receiver is sent a signal to, by ammonia gas concentration between air inlet pipe 11 and escape pipe 12
Difference and the gas flow that is pumped into of air pump 15, can operation obtain the ammonia amount generated in gas gathering mask 2, be further scaled list
The fowl and animal excrement volatilization ammonia amount of bit surface area calculates entire manure of livestock and poultry mountain with the fowl and animal excrement volatilization ammonia amount of per surface area
Ammonia valatilization amount.
If test object is the Ammonia valatilization amount of a certain water body, buoyancy ring 82 is changed, whole device can be swum in
On water body, remaining structure and operating mode are constant.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention should be regarded as protection of the invention
Range.
Claims (10)
1. a kind of high-precision real ground gas dynamic detection system, it is characterized in that: including annular base (1) and being buckled to bowl-shape gas collection
It covers (2), the lower edge of the gas gathering mask (2) and the inner ring surface of annular base (1) are tightly connected, the annular base (1)
Upper half seat (1a) on be fixed with air inlet pipe (11) and escape pipe (12), the air inlet pipe is equipped with first gas on (11)
Detector (13) is equipped with second gas detector (14) on escape pipe (12), the air inlet pipe (11) or escape pipe (12)
On be equipped with air pump (15), the air pump (15) is used to for the gas of gas gathering mask (2) being outside pumped into gas gathering mask (2), and makes to collect
Gas in gas hood (2) is flowed out from escape pipe (12), and there are two sieve pores of ventilating for symmetrical setting in the gas gathering mask (2)
(21), one of ventilation sieve pore (21) connect with air inlet pipe (11), another ventilation sieve pore (21) is connect with escape pipe (12),
Gas-dynamic detection system further includes middle control chip (3), battery (4), temperature control device (5), wind speed and direction control device (6)
And rainfall simulator (7), wherein middle control chip (3) and battery (4) are fixed on the upper surface upper half seat (1a), temperature regulation
Device (5) includes temperature inductor (51) and semiconductor cooling backing group (52), and the temperature inductor (51) is fixed on gas collection
It covers on (2), for detecting the internal and external temperature of gas gathering mask (2), temperature inductor (51) is connect with middle control chip (3),
And temperature signal is transferred to middle control chip (3), the semiconductor cooling backing group (52) includes several serial or parallel connections
Semiconductor cooling backing, one end of semiconductor cooling backing are located in gas gathering mask (2), and the other end is located at gas gathering mask (2) outside, and described half
Conductor hot and cold sheet is connect with middle control chip (3) and battery (4) respectively, and the middle control chip (3) can control semiconductor cooling backing
Power on/off and current direction, the wind speed and direction control device (6) include wind speed wind direction sensor (61), the wind speed and wind
It is fixed on upper half seat (1a) to sensor (61), and is connect with middle control chip (3) signal, the annular base (1) is by upper
Detent fixes, is horizontal rotatable up and down for half (1a) and lower half seat (1b) composition, the upper half seat (1a) and lower half seat (1b)
Cooperate, be fixed with a motor (62) on the upper half seat (1a), the drive shaft of the motor (62) passes through upper half seat (1a)
Cooperate with lower half seat (1b) threaded engagement, is provided with a circle spiral shell at the drive shaft cooperation of the lower half seat (1b) and motor (62)
Line tooth, when so that motor (62) rotating, upper half seat (1a) and lower half seat (1b) rotation, the rainfall simulator (7) include
Collecting ring (71), water level sensor (72), peristaltic pump (73), water tank (74) and gondola water faucet (75), the collecting ring (71)
For vertical ring structure, collecting ring (71) lower end is sealedly and fixedly connected with gas gathering mask (2) outer surface, in gas gathering mask (2) outer surface
On cross a circle catchment area, water level sensor (72) is provided with the different water levels induction of several height on collecting ring (71)
Point, when water covers water level induction point, the water level sensor (72) can incude height of water level, and send the signal to middle control
Chip (3), the peristaltic pump (73) and water tank (74) are fixed on upper half seat (1a), and water tank (74) and peristaltic pump (73) are even
It connects, supplies water for peristaltic pump (73), the peristaltic pump (73) is connect by pipeline with gondola water faucet (75), the gondola water faucet (75)
It is mounted in gas gathering mask (2), the middle control chip (3) can control peristaltic pump (73) according to the signal of water level sensor (72)
Number of revolutions, so that the water for spraying gondola water faucet (75) is quantitative.
2. a kind of high-precision real according to claim 1 ground gas dynamic detection system, it is characterized in that: the lower half seat
The lower surface of (1b) is provided with docking groove (16), and for the docking groove (16) for connecting with external-hanging structure (8), described is plug-in
The upper surface of structure (8) is provided with the docking convex head (81) docked with docking groove (16), and the docking convex head (81) is caught in pair
When access slot (16), lower half seat (1b) is fixed with external-hanging structure (8) palette.
3. a kind of high-precision real according to claim 2 ground gas dynamic detection system, it is characterized in that: the plug-in knot
Structure (8) is buoyancy ring (82), and the buoyancy ring (82) is made of foam or inflating rubber, and the buoyancy ring (82) upper end is solid
Surely there is hard plate, the docking convex head (81) is fixed on hard plate upper surface, the floatage energy of the buoyancy ring (82)
Gas-dynamic detection system is set to float on the water surface.
4. a kind of high-precision real according to claim 2 ground gas dynamic detection system, it is characterized in that: the plug-in knot
Structure (8) is plate ring (83), and the plate ring (83) is made of vertical annular slab, and plate ring (83) lower surface is sharp, is inserted
Plate ring (83) upper end is fixed with hard plate, and the docking convex head (81) is fixed on hard plate upper surface, plate ring (83)
It can be inserted into soil, make soil and extraneous seal isolation immediately below gas gathering mask (2).
5. a kind of high-precision real according to claim 2 ground gas dynamic detection system, it is characterized in that: the plug-in knot
Structure (8) is rubber ring (84), and the rubber ring (84) lower surface is flexible glue, can make gas gathering mask (2) with hard ground palette
The hard ground of underface and extraneous seal isolation, rubber ring (84) upper end is fixed with hard plate, the docking convex head (81)
It is fixed on hard plate upper surface.
6. the ground of a kind of high-precision real according to claim 3 or 4 or 5 gas dynamic detection system, it is characterized in that: described
Middle control chip (3) is single-chip microcontroller, model STM32L series；The battery (4) is dc-battery.
7. a kind of high-precision real according to claim 6 ground gas dynamic detection system, it is characterized in that: the gas gathering mask
It (2) is translucent cover.
8. a kind of high-precision real according to claim 7 ground gas dynamic detection system, it is characterized in that: first gas
Detector (13) and second gas detector (14) are ammonia detector.
9. a kind of high-precision real according to claim 8 ground gas dynamic detection system, it is characterized in that: the battery
(4) also respectively with air pump (15), middle control chip (3), temperature inductor (51), motor (62), water level sensor (72) and wriggle
(73) connection is pumped, and is powered for it, the middle control chip (3) also connect with air pump (15), and controls the pump gas of air pump (15)
Speed, the middle control chip (3) also connect with motor (62), and controls the turnning circle of motor (62).
10. a kind of high-precision real according to claim 9 ground gas dynamic detection system, it is characterized in that: the motor
It (62) is stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821607372.0U CN208921687U (en) | 2018-09-30 | 2018-09-30 | A kind of high-precision real ground gas dynamic detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821607372.0U CN208921687U (en) | 2018-09-30 | 2018-09-30 | A kind of high-precision real ground gas dynamic detection system |
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| CN208921687U true CN208921687U (en) | 2019-05-31 |
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ID=66707958
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| CN201821607372.0U Expired - Fee Related CN208921687U (en) | 2018-09-30 | 2018-09-30 | A kind of high-precision real ground gas dynamic detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918790A (en) * | 2018-09-30 | 2018-11-30 | 南通大学 | A kind of high-precision real ground gas device for dynamically detecting |
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2018
- 2018-09-30 CN CN201821607372.0U patent/CN208921687U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918790A (en) * | 2018-09-30 | 2018-11-30 | 南通大学 | A kind of high-precision real ground gas device for dynamically detecting |
| CN108918790B (en) * | 2018-09-30 | 2024-03-26 | 南通大学 | High-precision on-site gas dynamic detection device |
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Granted publication date: 20190531 Termination date: 20190930 |