CN110579231A - PM2.5 sensor calibration cabin - Google Patents
PM2.5 sensor calibration cabin Download PDFInfo
- Publication number
- CN110579231A CN110579231A CN201910963558.2A CN201910963558A CN110579231A CN 110579231 A CN110579231 A CN 110579231A CN 201910963558 A CN201910963558 A CN 201910963558A CN 110579231 A CN110579231 A CN 110579231A
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- Prior art keywords
- cabin
- sensor
- cabin body
- cigarette
- sliding
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- 235000019504 cigarettes Nutrition 0.000 claims abstract description 85
- 239000000779 smoke Substances 0.000 claims abstract description 38
- 238000004891 communication Methods 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 16
- 238000009423 ventilation Methods 0.000 claims description 13
- 230000000391 smoking effect Effects 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 206010021143 Hypoxia Diseases 0.000 claims description 6
- 230000008033 biological extinction Effects 0.000 claims description 4
- 239000002775 capsule Substances 0.000 claims 2
- 230000002146 bilateral effect Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 11
- 238000003825 pressing Methods 0.000 description 8
- 108010066057 cabin-1 Proteins 0.000 description 5
- 235000019506 cigar Nutrition 0.000 description 5
- 239000004020 conductor Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000004509 smoke generator Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
Abstract
The invention discloses a PM2.5 sensor calibration cabin which comprises a cabin body arranged on a desktop, wherein two drawer type sensor brackets are symmetrically arranged on two sides of the lower part of the cabin body through linear guide rails and used for placing a PM2.5 sensor to be calibrated and a standard sensor; a plurality of serial port communication main boards which are connected in parallel are uniformly distributed and arranged in the sensor bracket and are used for respectively connecting the PM2.5 sensor to be calibrated and the standard sensor; the middle part in the cabin body is provided with an electric smoke generating device which is used for automatically igniting cigarettes in the cabin body and releasing cigarette smoke into the cabin body so as to facilitate the detection of the sensor. The beneficial effects are that: the desktop placement design is adopted, the size is small, and the occupied space is not occupied; the operation is simple and convenient, and the working efficiency is high.
Description
Technical Field
The invention belongs to a sensor calibration device, and particularly relates to a PM2.5 sensor calibration cabin.
Background
An essential important link from production to market sale of the sensor is calibration, and the sensor passing the calibration test and passing the qualification is a truly qualified sensor. Because the sensor converts other measured information into an electric signal or other required information according to a certain rule and outputs the electric signal or other required information, such as a dust sensor for detecting the concentration of PM2.5 in air, the consistency of the result is very important, and the sensor which ensures the consistency of the output result of the sensor is only a qualified sensor after calibration.
The calibration cabin of the traditional PM2.5 sensor is a large cabin with the volume of more than 3 cubic meters, generally placed on the ground, a frame or a table for placing the sensor is placed in the calibration cabin, personnel need to enter the cabin body for operation, and the working efficiency is low; moreover, the cabin body of the large cabin is generally made of toughened glass, so that the manufacturing cost is higher. In addition, the interior of such a cabin is generally not provided with a smoke generating device or is externally arranged, so that the operation is inconvenient.
Disclosure of Invention
The invention aims to provide a PM2.5 sensor calibration cabin which is small in size, simple and convenient to operate and high in working efficiency.
The technical scheme of the invention is as follows:
A PM2.5 sensor calibration cabin comprises a cabin body which can be placed on a desktop, wherein two drawer type sensor brackets are symmetrically arranged on two sides of the lower part of the cabin body through linear guide rails and used for placing a PM2.5 sensor to be calibrated and a standard sensor; a plurality of serial port communication main boards which are connected in parallel are uniformly distributed and arranged in the sensor bracket and are used for respectively connecting the PM2.5 sensor to be calibrated and the standard sensor;
The middle part in the cabin body is provided with an electric smoke generating device which can automatically ignite the cigarettes in the cabin body and release the cigarette smoke to the cabin body so as to facilitate the detection of the sensor.
Preferably, the lower part of the longitudinal section of the cabin body is rectangular, and the upper part of the longitudinal section of the cabin body is right-angled trapezoid, so that the size is further reduced.
Preferably, an access opening is formed on the inclined plane of the upper part of the cabin body, and an openable sealing cabin door is hinged at the access opening.
Preferably, a pair of aluminum profiles are symmetrically fixed on two sides of each sensor bracket in the cabin, the linear guide rails are symmetrically fixed on opposite surfaces of each pair of aluminum profiles, and two sides of each sensor bracket are clamped on the corresponding linear guide rails through sliding blocks respectively.
Preferably, four conductive rails are uniformly distributed on a bottom plate in the cabin body below each sensor bracket, an electric brush is arranged on the bottom plate of each sensor bracket corresponding to each conductive rail, leads at the upper ends of the four electric brushes are correspondingly connected with a power supply interface and an A, B communication interface of one serial port communication mainboard on the same sensor bracket one by one, and the rear end of each conductive rail penetrates out of the back of the cabin body and is used for connecting a corresponding power supply line or a 485 communication line.
Preferably, the serial port communication motherboard is an RS485 to TTL serial port communication motherboard.
Preferably, the electric smoke generating device comprises an electric sliding table fixed in the middle of a bottom plate in the cabin body, a sliding cabin is arranged on the electric sliding table, cigarette lighter fixing plates are fixed on two aluminum profiles in the middle of the cabin body close to a rear panel of the cabin body, cigarette lighter support arms are fixed below the cigarette lighter fixing plates, the cigarette lighter support arms are inserted into the sliding cabin through clearance fit, and cigarette lighters are arranged in central holes in front ends of the cigarette lighter support arms; a cigarette clamping plate and a smoking fan are sequentially arranged at the front end in the sliding cabin and are used for being matched with a cigarette lighter to realize cigarette lighting operation; an air inlet is formed between the two aluminum profiles at the lower end of the rear panel of the cabin body corresponding to the middle part and is used for introducing air to assist in cigarette lighting operation.
As further preferred, the sliding cabin includes that an upper end is uncovered and the appearance is the hollow box body of cuboid, has connect firmly the upper cover plate at the box body rear end, and the upper cover plate suspension forms two ventilation gaps of symmetrical arrangement in box body top and box body upper end, and ventilation gap opens when the sliding cabin removes to the rear end along with electronic slip table for let in the supplementary point cigarette operation of air.
Preferably, two movable cabin sealing plates are symmetrically fixed on the two aluminum profiles in the middle of the cabin body, and the movable cabin sealing plates are respectively inserted into corresponding ventilation gaps in a clearance fit manner; the ventilation gap is sealed by the movable cabin sealing plate when the sliding cabin moves to the front end along with the electric sliding table, and the movable cabin sealing plate is used for preventing air from entering the sliding cabin to extinguish the oxygen deficiency of the cigarettes.
Preferably, a groove-shaped vertical frame is fixed at the front ends of the two aluminum profiles in the middle of the cabin body, and the upper end of the groove-shaped vertical frame is wedge-shaped and is used for supporting the closed sealing cabin door; two at cabin body middle part the aluminium alloy front end is located the notch of cell type grudging post and is supported there is the cigarette extinction apron, the sliding compartment passes and is covered by the cigarette extinction apron by cell type grudging post below when removing to the front end along with electronic slip table for make the cigarette oxygen deficiency extinguish and place the cigarette.
Preferably, a smoke purifier is arranged on the lighter fixing plate and used for adjusting the smoke concentration in the cabin and purifying the smoke in the cabin; the top in the cabin body is provided with a stirring fan which is used for stirring the smoke in the cabin body to ensure that the smoke is uniformly distributed.
The invention has the beneficial effects that:
1. The calibration cabin adopts a desktop arrangement design, has small volume, is convenient and flexible to use, and does not occupy space.
2. Because the sensor bracket adopts a drawer type structure, the operation is not required, the PM2.5 sensor to be calibrated can be placed by pulling out the sensor bracket during the operation, and the sensor bracket is pushed in after the operation, so that the operation is simple and convenient, and the working efficiency is greatly improved.
3. Because the electric smoke generating device is arranged in the middle part in the cabin body, the electric smoke generating device can automatically ignite the cigarettes in the electric smoke generating device and release the cigarette smoke into the cabin body, and the electric smoke generating device is convenient to operate, saves the cost, and is safe and efficient.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a sectional view a-a of fig. 1.
Fig. 4 is a sectional view B-B of fig. 2.
Fig. 5 is a cross-sectional view C-C of fig. 1.
fig. 6 is a perspective view of the present invention.
figure 7 is a schematic view of the construction of the electric aerosol generating apparatus of the present invention.
Fig. 8 is a cross-sectional view taken along line D-D of fig. 7.
Fig. 9 is a perspective view of fig. 7.
Fig. 10 is a circuit block diagram of the present invention.
In the figure: the cigarette lighter comprises a cabin body 1, an air inlet 101, a lock catch 2, a sealing cabin door 3, a groove-shaped vertical frame 4, a control button 5, a sensor bracket 6, an aluminum profile 7, a main control circuit board 8, a cigarette lighter support arm 9, a cushion block 10, a cigarette lighter fixing plate 11, a smoke purifier 12, a movable cabin sealing plate 13, an upper cover plate 14, a stirring fan 15, a smoke extinguishing cover plate 16, a cigarette pressing plate 17, a smoking fan 18, a sliding seat 19, a nut 20, a cigarette clamping plate 21, a lead screw transmission mechanism 22, a sliding cabin 23, a ventilation gap 24, a cigarette lighter 25, a stepping motor 26, an electric sliding platform 27, a rear limit switch 28, a serial port communication main board 29, a groove-shaped plate frame 30, an electric brush 31, a conductor rail 32, a sliding block 33, a linear guide rail 34, a guide rail 35, a mounting plate.
Detailed Description
As shown in fig. 1-6 and 10, the PM2.5 sensor calibration cabin according to the present invention includes a cabin body 1 capable of being placed on a desktop, wherein the lower portion of the longitudinal section of the cabin body 1 is rectangular, and the upper portion of the longitudinal section of the cabin body is a right trapezoid, so as to further reduce the volume. An access hole is arranged on the inclined plane at the upper part of the cabin body 1, and a sealing cabin door 3 which can be upturned and opened is hinged at the upper end of the access hole through a hinge. Two pairs of lock catches 2 are symmetrically arranged between the front end and the front panel of the cabin body 1 and the two sides of the sealed cabin door so as to lock the sealed cabin door tightly.
Two drawer type sensor brackets 6 are symmetrically arranged on two sides of the lower part of the cabin body 1 through linear guide rails 34 and used for placing a PM2.5 sensor to be calibrated and a standard sensor. A pair of aluminum profiles 7 are symmetrically fixed on the bottom surface in the cabin body 1 at two sides of each sensor bracket 6, the linear guide rails 34 are symmetrically fixed on the opposite surfaces of each pair of aluminum profiles, and two sides of each sensor bracket 6 are clamped on the corresponding linear guide rails 34 through the sliding blocks 33 in sliding fit with the linear guide rails 34.
the sensor bracket 6 comprises a groove-shaped plate frame 30, a limiting plate 37 and a mounting plate 36 which are arranged in an up-down overlapping mode are fixed on the upper portion in a groove opening of the groove-shaped plate frame 30, a plurality of serial port communication main boards 29 are uniformly arranged and fixed below the mounting plate 36 in the sensor bracket 6 in a rectangular array mode, the serial port communication main boards 29 are RS 485-TTL serial port communication main boards, and power interfaces and communication interfaces of the serial port communication main boards 29 are connected in parallel and used for respectively connecting a PM2.5 sensor to be calibrated and a standard sensor. A plurality of special-shaped mounting holes 3701 are uniformly distributed and arrayed in a rectangular array on the limiting plate 37 of the sensor bracket 6, and the mounting holes 3701 correspond to the serial port communication mainboard in a one-to-one manner and are matched with the appearance of the PM2.5 sensor to be calibrated for embedding and mounting the PM2.5 sensor to be calibrated and the standard sensor.
Four conductor rails 32 are uniformly and fixedly arranged on a bottom plate in the cabin 1 below each sensor bracket 6, an electric brush 31 is respectively arranged on the bottom plate of the sensor bracket 6 corresponding to each conductor rail 32, a copper sheet at the lower end of the electric brush 31 is electrically connected with the corresponding conductor rail 32 under the action of a pressure spring in the electric brush 31, leads at the upper ends of the two electric brushes 31 are respectively and correspondingly connected with two power interfaces of one serial communication mainboard on the same sensor bracket 6 through power lines, and leads at the upper ends of the other two electric brushes 31 are respectively and correspondingly connected with A, B communication interfaces of one serial communication mainboard on the same sensor bracket 6 through 485 communication lines. The rear end of each conductor rail 32 penetrates out of the rear surface of the cabin 1 and is used for being connected with a corresponding power supply line or 485 communication line and connected with the main control circuit board 8 through the power supply line or 485 communication line.
An electric smoke generating device is arranged in the middle of the cabin body 1 and used for automatically igniting cigarettes in the cabin body 1 and releasing cigarette smoke into the cabin body 1 so as to facilitate the detection of the sensor.
As shown in fig. 7-9, the electric smoke generator includes an electric sliding table 27 fixed at the middle of the bottom plate in the cabin 1, the electric sliding table 27 is arranged along the width direction of the cabin 1 by using a stepping motor 26 to drive a screw transmission mechanism 22, a sliding cabin 23 is connected to a screw 20 of the electric sliding table through a sliding seat 19, and two ends of the sliding seat 19 are in sliding clearance fit with two guide rails 35 symmetrically fixed at the middle of the bottom plate of the cabin 1. Two in the middle part in the cabin body 1 be close to cabin body rear panel on the aluminium alloy and support through cushion 10 and be fixed with some cigarette ware fixed plate 11, be fixed with some cigarette ware support arm 9 below some cigarette ware fixed plate 11, 9 front ends of cigar lighter support arm insert the sliding chamber 23 in through clearance fit and install cigar lighter 25 in the downthehole dot cigarette ware support arm 9 front end centre. A cigarette clamping plate 21 and a smoking fan 18 are sequentially arranged at the front end in the sliding cabin 23 and are used for being matched with a cigarette lighter 25 to realize cigarette lighting operation; the cigarette cardboard 21 is two and separately arranges, is equipped with V type draw-in groove in the middle part of cigarette cardboard 21, and the lower extreme of V type draw-in groove is circular-arc, is used for the card to go into the cigarette. The smoking fan 18 is installed in the sliding cabin 23 and located between the cigarette clamping plate 21 and the front end plate, and is used for sucking smoke generated after the cigarette is ignited into the cabin. A cigarette pressing plate 17 is buckled in the sliding cabin 23 corresponding to the cigarette clamping plate 21 and used for pressing the cigarette in the cigarette clamping plate 21. An air inlet 101 is arranged between the two aluminum profiles 7 at the lower end of the back panel of the cabin body 1 corresponding to the middle part and is used for introducing air to assist in cigarette lighting operation.
The sliding cabin 23 comprises a hollow box body with an open upper end and a cuboid shape, an upper cover plate 14 is fixedly connected to the rear end of the box body through a cushion block and screws, the length of the upper cover plate 14 is slightly larger than half of the length of the box body, two sides of the upper cover plate 14 are suspended above the box body and form two ventilation gaps 24 symmetrically arranged with the upper end face of the box body, when the sliding cabin 23 moves to the rear end along with the electric sliding table, the ventilation gaps 24 are opened, the inner cavity of the sliding cabin 23 is communicated with the inner cavity of the cabin body 1 and used for introducing air to assist in cigarette lighting operation, and a cigarette lighter 25 lights cigarettes clamped into the cigarette clamping plates.
Two in the middle part in the cabin body 1 the aluminium alloy is last to be fixed with two through the backing plate symmetry and moves cabin shrouding 13, when the sliding chamber 23 removed to the front end along with electronic slip table, move cabin shrouding 13 and insert corresponding ventilation gap 24 in and seal it through clearance fit respectively for stop that the air makes the cigarette oxygen deficiency extinguish in getting into sliding chamber 23.
A groove-shaped vertical frame 4 is fixed on the upper surfaces of the front ends of the two aluminum profiles 7 in the middle of the cabin body 1, and the upper end of the groove-shaped vertical frame 4 is wedge-shaped and is used for supporting a closed sealing cabin door. The front ends of the two aluminum profiles in the middle of the cabin body 1 are positioned in the notches of the groove-shaped vertical frame and internally provided with a movable smoke extinguishing cover plate 16, and the sliding cabin 23 penetrates through the lower part of the groove-shaped vertical frame 4 and is covered by the smoke extinguishing cover plate 16 when moving to the front end along with the electric sliding table, so that cigarettes are extinguished in an anoxic way; the cigarette extinguishing cover 16 is lifted to place the cigarette in the cigarette card 21.
A smoke purifier 12 is fixed on the lighter fixing plate 11 and used for adjusting the smoke concentration in the cabin and purifying the smoke in the cabin; a stirring fan 15 is fixed at the top of the cabin body 1 and is used for stirring the smoke in the cabin body to be uniformly distributed.
The main control circuit board 8 is controlled by a single chip microcomputer and is installed on the outer side of the middle part of the rear panel of the cabin body 1 and used for realizing communication between the serial port communication main board and the computer upper computer and controlling the work of the stepping motor of the electric smoke generating device in the cabin body, the cigarette lighter 25, the smoke sucking fan 18, the smoke purifier 12 and the stirring fan. The single chip microcomputer adopts STM32F103C8T6, is equipped with a plurality of control button 5 with 8 electric connections of main control circuit board respectively on the front panel of cabin body 1, is main switch, step motor corotation switch, step motor reversal switch, smoke purifier switch and stirring fan switch in proper order, is used for controlling the power break-make of main control circuit board 8, step motor corotation, step motor reversal and smoke purifier 12 and the start-stop of stirring fan respectively. The cigarette lighter 25 and the smoking fan 18 are controlled to start through a forward switch of the stepping motor and stop through a reverse switch of the stepping motor.
The main control circuit board 8 is powered by a 12V power supply, and two RS485 interfaces are arranged on the main control circuit board 8 and are respectively used for connecting the rear ends of the corresponding conductive rails 32 on the two sides of the cabin and the upper computer of the computer.
A front limit switch 39 and a rear limit switch 28 are respectively fixed at the front and rear positions of the bottom plate corresponding to the sliding seat at the middle part in the cabin body 1, and the front and rear limit switches are respectively electrically connected with the stepping motor and used for controlling the stop of the stepping motor so as to control the sliding position of the sliding cabin 23.
The PM2.5 sensor calibration cabin calibration process comprises the following steps:
1. And pressing a main power switch to electrify the calibration cabin, and turning on an upper computer of the computer and connecting the upper computer to operate.
2. The sensor brackets 6 are pulled out from the cabin body 1, and a standard sensor and a plurality of sensors to be calibrated are respectively arranged on the limiting plate 37 of each sensor bracket 6; connecting power interfaces and communication interfaces of the standard sensor and the sensor to be calibrated with the power interface and the communication interface of the corresponding serial port communication mainboard respectively; after installation, the sensor bracket is pushed back into the cabin body.
3. The cigarette extinguishing cover plate 16 is opened, the cigarette is pressed in the cigarette clamping plate 21 through the cigarette pressing plate, and the external cigarette extinguishing cover plate 16 is covered.
4. Pressing stirring fan switch start cabin internal stirring fan, pressing step motor corotation switch, step motor drives sliding cabin 23 rearward movement, and smoking fan 18 and cigar lighter 25 start simultaneously this moment, when cigarette along with sliding cabin 23 rearward movement to contact cigar lighter 25, back limit switch 28 triggers and makes step motor stop rotatory, unclamps step motor corotation switch, and the cigarette is lighted by cigar lighter 25 while smog is inhaled the cabin internal by smoking fan 18.
5. Observing the reading of a standard sensor on the computer upper computer, pressing a reversing switch of the stepping motor when the reading rises to 500 +/-50 (a set value), driving the sliding cabin 23 to move forwards by the stepping motor, and automatically closing the smoking fan 18 and the smoking device 25 at the moment; when the cigarette moves to the front end along with the sliding cabin 23, the front limit switch 28 is triggered to stop the rotation of the stepping motor, the reversing switch of the stepping motor is released, and the sliding cabin 23 is respectively inserted into the corresponding ventilation gap through the movable cabin closing plate 13 to be closed, so that the cigarette is extinguished in oxygen deficiency.
6. And (4) observing whether the data of the standard sensor on the computer upper computer is kept at 500 +/-50, and starting the smoke purifier 12 to perform purification regulation if the data is higher.
7. And (4) turning off the stirring fan, and starting to carry out data acquisition and calibration operation through the upper computer of the computer.
8. When the upper computer of the computer displays that the calibration is finished, the smoke purifier 12 is started to purify the cabin, and when the standard sensor displays that the reading is below 35, the smoke purifier 12 is closed, and the calibration operation is finished.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides a PM2.5 sensor calibration cabin which characterized in that: the system comprises a cabin body arranged on a desktop, wherein two drawer type sensor brackets are symmetrically arranged on two sides of the lower part of the cabin body through linear guide rails and used for placing a PM2.5 sensor to be calibrated and a standard sensor; a plurality of serial port communication main boards which are connected in parallel are uniformly distributed and arranged in the sensor bracket and are used for respectively connecting the PM2.5 sensor to be calibrated and the standard sensor;
The middle part in the cabin body is provided with an electric smoke generating device which is used for automatically igniting cigarettes in the cabin body and releasing cigarette smoke into the cabin body so as to facilitate the detection of the sensor.
2. The PM2.5 sensor calibration pod of claim 1, wherein: the lower part of the longitudinal section of the cabin body is rectangular, and the upper part of the longitudinal section of the cabin body is right-angled trapezoid, so that the size is further reduced.
3. the PM2.5 sensor calibration pod of claim 2, wherein: an access hole is arranged on the inclined plane at the upper part of the cabin body, and an openable sealing cabin door is hinged at the access hole.
4. The PM2.5 sensor calibration pod of claim 1, wherein: lie in every sensor bracket bilateral symmetry in the cabin body and be fixed with a pair of aluminium alloy, linear guide symmetry is fixed on every opposite face to the aluminium alloy, sensor bracket both sides are respectively through the slider card on the linear guide who corresponds.
5. The PM2.5 sensor calibration pod of claim 1, wherein: four conductive rails are uniformly distributed on a bottom plate in the cabin body below each sensor bracket, electric brushes are arranged on the bottom plate of each sensor bracket corresponding to each conductive rail, lead wires at the upper ends of the four electric brushes are correspondingly connected with a power supply interface and an A, B communication interface of one serial port communication mainboard on the same sensor bracket one by one, and the rear end of each conductive rail penetrates out of the back of the cabin body and is used for connecting a corresponding power supply line or a 485 communication line.
6. The PM2.5 sensor calibration pod of claim 1 or 5, wherein: the serial port communication mainboard is an RS485 to TTL serial port communication mainboard.
7. The PM2.5 sensor calibration pod of claim 4, wherein: the electric smoke generating device comprises an electric sliding table fixed in the middle of a bottom plate in the cabin body, a sliding cabin is arranged on the electric sliding table, cigarette lighter fixing plates are fixed on two aluminum profiles in the middle of the cabin body close to a rear panel of the cabin body, cigarette lighter support arms are fixed below the cigarette lighter fixing plates, and the cigarette lighter support arms are inserted into the sliding cabin through clearance fit and are internally provided with a cigarette lighter in a center hole at the front ends of the cigarette lighter support arms; a cigarette clamping plate and a smoking fan are sequentially arranged at the front end in the sliding cabin and are used for being matched with a cigarette lighter to realize cigarette lighting operation; an air inlet is formed between the two aluminum profiles at the lower end of the rear panel of the cabin body corresponding to the middle part and is used for introducing air to assist in cigarette lighting operation.
8. The PM2.5 sensor calibration pod of claim 7, wherein: the sliding cabin comprises a hollow box body with an open upper end and a cuboid appearance, an upper cover plate is fixedly connected to the rear end of the box body, the upper cover plate is suspended above the box body and forms two ventilation gaps symmetrically arranged with the upper end of the box body, and the ventilation gaps are opened when the sliding cabin moves to the rear end along with the electric sliding table for air introduction to assist in cigarette lighting operation.
9. the PM2.5 sensor calibration capsule of claim 8 wherein: two movable cabin sealing plates are symmetrically fixed on the two aluminum profiles in the middle of the cabin body, and the movable cabin sealing plates are respectively inserted into corresponding ventilation gaps through clearance fit; the ventilation gap is sealed by the movable cabin sealing plate when the sliding cabin moves to the front end along with the electric sliding table, and the movable cabin sealing plate is used for preventing air from entering the sliding cabin to extinguish the oxygen deficiency of the cigarettes.
10. A PM2.5 sensor calibration capsule according to any of claims 7-9, characterized in that: a groove-shaped vertical frame is fixed at the front ends of the two aluminum profiles in the middle of the cabin body, and the upper end of the groove-shaped vertical frame is wedge-shaped and is used for supporting a closed sealing cabin door; two at cabin body middle part the aluminium alloy front end is located the notch of cell type grudging post and is supported there is the cigarette extinction apron, the sliding compartment passes and is covered by the cigarette extinction apron by cell type grudging post below when removing to the front end along with electronic slip table for make the cigarette oxygen deficiency extinguish and place the cigarette.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910963558.2A CN110579231A (en) | 2019-10-11 | 2019-10-11 | PM2.5 sensor calibration cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910963558.2A CN110579231A (en) | 2019-10-11 | 2019-10-11 | PM2.5 sensor calibration cabin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110579231A true CN110579231A (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910963558.2A Pending CN110579231A (en) | 2019-10-11 | 2019-10-11 | PM2.5 sensor calibration cabin |
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| CN (1) | CN110579231A (en) |
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