CN104007048B - Step-by-step movement Beta ray method particle monitoring instrument - Google Patents
Step-by-step movement Beta ray method particle monitoring instrument Download PDFInfo
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- CN104007048B CN104007048B CN201410251436.8A CN201410251436A CN104007048B CN 104007048 B CN104007048 B CN 104007048B CN 201410251436 A CN201410251436 A CN 201410251436A CN 104007048 B CN104007048 B CN 104007048B
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Abstract
The invention provides a kind of step-by-step movement Beta ray method particle monitoring instrument.This step-by-step movement Beta ray method particle monitoring instrument includes: installing rack, has sampling location and detection position；Wound membrane assembly, including the first reel and the second reel；Clamping traction component, including hold assembly, hold assembly is reciprocally disposed between the first reel and the second reel with clamping and drives the filter membrane between the first reel and the second reel, and makes filter membrane move back and forth between sampling location and detection position；Sample detecting assembly, when hold assembly clamps and drive filter membrane to move back and forth to sampling location and detection position, correspondingly samples to filter membrane and detects.It is easily generated deviation accumulative effect in accordance with the invention it is possible to solution prior art uses rolling grind flowing mode and causes filter membrane constantly to deviate former direction until the problem of fracture damage.
Description
Technical field
The present invention relates to environmental monitoring technology field, more particularly, to a kind of step-by-step movement Beta ray method particle monitoring instrument.
Background technology
Beta ray method particle monitoring instrument is to utilize Beta ray, through intensity when depositing the filter membrane having particulate matter, decay can occur
Principle, carries out (including PM10, PM2.5, TSP etc.) instrument of real time on-line monitoring to the particulate matter in air.This instrument
Device is provided with the filter membrane that can update by the period, is respectively arranged with Beta radiographic source and Beta ray detection in the both sides up and down of filter membrane
Device.Along with the carrying out of sample collecting, the particulate matter quality that filter membrane is collected is consequently increased, now the detection of Beta ray detector
To Beta transmitted intensity can correspondingly decay.Quality due to the output signal energy direct reaction particulate matter of Beta ray detector
Change, by analyzing the particulate matter numerical quantity of Beta ray detector, in conjunction with the sample volume gathered in the identical period,
Draw the particle concentration of sampling periods.
Beta ray method particle monitoring instrument can be divided into step-by-step movement and continuous way two types.Step-by-step movement Beta ray method particulate matter is supervised
Surveying instrument and mainly realize sampling and two functions of detection, these two functions are completed by the device being arranged on two diverse locations, often respectively
Individual detection cycle filter membrane needs to move back and forth once in the two position, and the collection of sample and analysis are to carry out in the different periods,
Instrument measures to obtain the particulate matter mean concentration of sampling periods after sampling terminates.When needing to obtain hourly average data,
It is accomplished by per hour using one section of filter membrane, after a volume filter membrane makes to be finished, it is necessary to change the new filter membrane of volume.
In the prior art, the mode of step-by-step movement Beta ray method particle monitoring instrument transmission filter membrane is typically with what rolling stone roller moved
Mode.It is illustrated in figure 1 the application examples of a kind of filter membrane connecting gear commonly used in the prior art.In such an embodiment, drive shaft 1
By forward and reverse rotation, the frictional force utilizing roller 2 to compress filter membrane 6 generation realizes moving back and forth of filter membrane, and by expansion tightening wheel 4
Being controlled the direction of transfer of filter membrane 6 with fast pulley 5, filter membrane 6 realizes sampling at the D of position and carries out Beta at the C of position
Ray detection is to determine the concentration of particulate in air.
The particle monitoring instrument of step-by-step movement Beta ray method shown in Fig. 1 comes with some shortcomings, mainly shows themselves in that due to filter membrane 6
Intensity is the lowest, easily ruptures, so being difficult to move back and forth filter membrane body be controlled by mechanical guide mode.Rolling grinds dynamic
Itself can only provide and transmit the power of filter membrane 6 and not there is pressure and limit the effect of the filter membrane direction of motion, so filter membrane 6 back and forth moves
Offset error can produced front and back and in the both direction of left and right unavoidably time dynamic, in turn result in the inaccurate impact in test point location detection essence
Degree.This deviation is also easily generated accumulative effect, and filter membrane can be made time serious constantly to deviate former direction, and the fracture ultimately causing filter membrane is damaged
Bad.Additionally, due to roller 2 must use elastomeric material, adjust when roller 2 compresses the pressure of filter membrane the most by virtue of experience, if
Pressure is too small easily makes filter membrane produce skidding in movement；If pressure is excessive, during long-time use, it is easily generated adhesion,
The fines i.e. formed after the local shedding of filter membrane 6 surface sticks at roller 2 surface, slippage problems the most easily occurs.
Summary of the invention
It is desirable to provide a kind of step-by-step movement Beta ray method particle monitoring instrument, to solve step-by-step movement Beta of the prior art
The problem that skew easily occurs in the filter membrane of ray method particle monitoring instrument.
For solving above-mentioned technical problem, the invention provides a kind of step-by-step movement Beta ray method particle monitoring instrument, this step-by-step movement Beta
Ray method particle monitoring instrument includes: installing rack, and installing rack has sampling location and detection position；Wound membrane assembly, wound membrane group
Part is arranged on installing rack, and wound membrane assembly includes the first reel and the second reel, and on the second reel, volume is provided with the filter membrane of sampling,
First reel is for wrapping up in the filter membrane rolled up after the sampled and detection that the second reel transmission comes；Clamping traction component, clamps draw groups
Part is arranged on installing rack, clamping traction component include hold assembly, hold assembly be reciprocally disposed within the first reel and
To clamp and to drive the filter membrane between the first reel and the second reel between second reel, and make filter membrane at sampling location and detecting position
Move back and forth between putting；Sample detecting assembly, sample detecting assembly is arranged on installing rack, clamps at hold assembly and drives filter
When film moves back and forth to sampling location and detection position, correspondingly filter membrane sampled and detect.
Further, clamping traction component also includes driving assembly, drives assembly and hold assembly drive connection so that hold assembly
The filter membrane clamped between the first reel and the second reel moves back and forth.
Further, installing rack includes: sample detecting portion, and sample detecting portion has installation groove, installs the depression direction of groove
Consistent with the axis direction of the first reel, it is recessed that sampling location and detection position are arranged in sample detecting portion and lay respectively at installation
The two ends of groove；Hold assembly includes: upper half clamping part, and upper half clamping part is arranged in installation groove；Lower half clamping part, lower half
Clamping part is arranged in installation groove, and lower half clamping part is hinged with the first end of upper half clamping part, and hold assembly has to be made
The clamp position that upper half clamping part and lower half clamping part fit together, and make upper half clamping part and lower half retained part from non-folder
Hold state.
Further, step-by-step movement Beta ray method particle monitoring instrument also includes: hit hook assembly, hits hook assembly and is arranged on installing rack
On, hit hook assembly and can trigger upper half clamping part so that hold assembly is in non-clamping state.
Further, hitting hook assembly and include: hit hook, hit hook and can be rotatably set on installing rack, the hook portion hitting hook is positioned at peace
In dress groove, and hit hook and can start to be rotated in a clockwise direction 0 degree to 180 degree from hang；On upper half clamping part arrange with
Hit the suitable projection of hook；First location screw, the first location screw will hit hook and be fixedly installed on installing rack.
Further, projection is arranged on the edge of the bottom land of the remotely mounted groove of upper half clamping part, and close the second of projection
The thickness of the end of reel tapers into from the first reel to the direction of the second reel.
Further, clamping traction component also includes: telescopic component, telescopic component is arranged on the top of hold assembly with to clamping
Parts apply pressure.
Further, installing rack includes that installing hole, installing hole are arranged on the top of hold assembly and connect with installing groove, flexible
Assembly includes: spring, and spring is arranged in installing hole；Pressing piece, pressing piece is arranged in installing hole and under the action of the spring
Hold assembly is applied pressure.
Further, sample detecting assembly includes: sampling pump interface, and sampling pump interface is arranged on installing rack so that filter membrane is to sky
Gas is sampled；Beta ray detector, Beta ray detector is arranged on installing rack to detect filter membrane.
Further, sampling pump interface and Beta ray detector are arranged at the lower section in sample detecting portion, and sampling pump interface sets
Put sample detecting portion near the side of the first reel, Beta ray detector be arranged on sample detecting portion near second
The side of reel.
Further, assembly is driven to include that drive block, upper half clamping part are connected with drive block with the hinged end of lower half clamping part；Step
Entering formula Beta ray method particle monitoring instrument and also include adjusting apparatus, adjusting apparatus includes: fixed plate, and fixed plate is fixed on driving
On block, and the length direction of fixed plate is consistent with the direction of motion of hold assembly；Adjustment plate, adjustment plate is arranged in fixed plate,
And adjustment plate can be arranged relatively movably with drive block.
Further, the first side of drive block is provided with suspending part, and the length direction of adjustment plate is consistent with the length direction of fixed plate,
And the end away from drive block of adjustment plate stretches out in fixed plate；First end of adjustment plate is positioned at the lower section of suspending part, adjustment plate
First end is provided with the first mounting hole, and the length direction of the first mounting hole is perpendicular to the length direction of adjustment plate；The second of adjustment plate
End is provided with the second mounting hole, and the length direction of the second mounting hole is consistent with adjustment plate length direction, and adjustment plate is by being arranged on the
Screw in two mounting holes is limited in fixed plate；Adjusting apparatus also includes eccentric adjustment axle, suspending part arranges circular hole bias and adjusts
Bearing is arranged in circular hole, and eccentric the first end adjusting axle is provided with eccentric block and is positioned at the first mounting hole.
Further, driving assembly also to include guide way, guide way is arranged on installing rack, and drive block is set in movably and leads
On body.
Application technical scheme, during work, sample detecting assembly passes the Beta of filter membrane before sampling is first detected in detection position
Transmitted intensity, if the Beta transmitted intensity value through filter membrane now detected is I0, then drive filter membrane by hold assembly,
Making filter membrane run a segment distance to the direction of the first reel from the second reel, now, filter membrane is positioned at sampling location, when filter membrane is positioned at
During sampling location, by the effect of sample detecting assembly, make filter membrane that air to be sampled, then by the clamping of hold assembly
Driving effect, makes filter membrane motion one end, direction distance from the first reel to the second reel, and makes filter membrane be reduced to detect position,
Now, again detect the Beta transmitted intensity through filter membrane, if the Beta transmitted intensity value now detected is I1, so sample
I front and back0Value and I1The change of value reflects the quality of adsorption particle thing on filter membrane, in conjunction with the sample volume gathered in the identical period,
Can draw the particle concentration of sampling periods, after sampling and detecting, hold assembly is from detecting position near the second reel
A segment distance is moved in direction, and the filter membrane after sampling and detecting is wrapped up in by the first reel and rolled, and needs next time to detect in air
During particle concentration, repeat said process.In invention, owing to moving back and forth of filter membrane is by hold assembly clamping filter membrane also
Mobile realization so that filter membrane does not haves skew during moving back and forth, it is ensured that step-by-step movement Beta ray method particle monitoring
The accuracy of detection of instrument, solves and uses rolling stone roller flowing mode to be easily generated deviation accumulative effect and cause filter membrane the most inclined in prior art
From former direction until the problem of fracture damage, can also solve, owing to filter membrane strength is the lowest, easily to rupture, it is difficult to filter membrane simultaneously
Body move back and forth the problem being controlled by mechanical guide mode.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing a further understanding of the present invention, the illustrative examples of the present invention and
Its explanation is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the front view of existing step-by-step movement Beta ray method particle monitoring instrument；
Fig. 2 diagrammatically illustrates the front view of the step-by-step movement Beta ray method particle monitoring instrument of the present invention；
Fig. 3 diagrammatically illustrates the Local map of the left view of the step-by-step movement Beta ray method particle monitoring instrument of the present invention；
Fig. 4 diagrammatically illustrates the exploded view of dicyclo bowl assembly, actuator and the latch assembly in the present invention；
Fig. 5 diagrammatically illustrates the dicyclo groove in the present invention and drives the three-dimensional structure diagram of assembly；
Fig. 6 diagrammatically illustrates the partial enlarged drawing P in Fig. 5；
Fig. 7 diagrammatically illustrates the partial enlarged drawing M in Fig. 5；
Fig. 8 diagrammatically illustrates the partial enlarged drawing N in Fig. 5；
Fig. 9 diagrammatically illustrates the dicyclo groove in the present invention and drives assembly partial view；
Figure 10 diagrammatically illustrates the Local map of the top view of the step-by-step movement Beta ray method particle monitoring instrument of the present invention；
Figure 11 diagrammatically illustrates the exploded view adjusting assembly in the present invention；And
Figure 12 diagrammatically illustrates the adjusting part in the present invention and adjusts front and back position comparison diagram.
Description of reference numerals: 100, installing rack；101, sample detecting portion；102, groove is installed；103, installing hole；110、
Wound membrane assembly；111, the first reel；112, the second reel；113, expansion tightening wheel；114, fast pulley；120, clamping draw groups
Part；121, hold assembly；1211, lower half clamping part；1212, upper half clamping part；1213, projection；1214, drive block；
1215, suspending part；1216, circular hole；1217, guide way；122, assembly is driven；123, telescopic component；1231, spring；
1232, pressing piece；130, sample detecting assembly；131, sampling pump interface；132, Beta ray detector；140, hook is hit
Assembly；141, hook is hit；142, the first location screw；150, adjusting apparatus；151, fixed plate；152, adjustment plate；1521、
First mounting hole；1522, the second mounting hole；153, eccentric adjustment axle；1531, eccentric block；154, circlip；155、
Screw；210, dicyclo channel parts；211, the first disk body；2111, semi arch raised line；2112, first step down groove；212、
Second disk body；2121, round bump；2122, second step down groove；213, the 3rd disk body；214, the first annular groove；215、
Second annular groove；216, boss is connected；217, connecting hole；220, rigidity conveyer belt；230, actuator；240, guiding parts；
241, directive wheel；250, latch assembly；251, lock-screw；252, screwed hole；300, driven object body；310,
One through hole；320, the second through hole；330, keeper；400, filter membrane；500, photoelectric sensor.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the present invention can be defined by the claims and cover
Multitude of different ways implement.
Shown in Fig. 2 and Fig. 3, according to embodiments of the invention, it is provided that a kind of particle monitoring instrument, this particle monitoring
Instrument is step-by-step movement Beta ray method solids monitor.This step-by-step movement Beta ray method particle monitoring instrument includes installing rack 100, volume
Membrane module 110, clamping traction component 120 and sample detecting assembly 130.Wherein, installing rack 100 has sampling location and
Detection position, wound membrane assembly 110 is arranged on installing rack 100, and this wound membrane assembly 110 includes the first reel 111 and the second reel
112, on the second reel 112, volume is provided with the filter membrane 400 of sampling, and the first reel 111 is used for wrapping up in volume and transmits from the second reel 112
Filter membrane 400 after the sampled and detection come；Clamping traction component 120 is arranged on installing rack 100, this clamping traction component
120 include hold assembly 121, this hold assembly 121 be reciprocally disposed within the first reel 111 and the second reel 112 it
Between with clamping and drive the filter membrane 400 between the first reel 111 and the second reel 112, and make filter membrane 400 in sampling location and institute
State and move back and forth between detection position；Sample detecting assembly 130 is arranged on installing rack 100, drives in hold assembly 121 clamping
When dynamic filter membrane 400 moves back and forth to sampling location and detection position, correspondingly filter membrane 400 sampled and detect.During work,
Sample detecting assembly 130 passes the Beta transmitted intensity of filter membrane 400 before sampling is first detected in detection position, if now detect
Beta transmitted intensity value through filter membrane 400 is I0, then clamp filter membrane 400 by hold assembly 121, make filter membrane 400 from
A segment distance is run in the direction of second reel the 112 to the first reel 111, and now, filter membrane 400 is positioned at sampling location, works as filter membrane
400 when being positioned at sampling location, by the effect of sample detecting assembly 130, makes filter membrane 400 sample air, then passes through
The clamping driving effect of hold assembly 121, make filter membrane 400 from the direction of first reel the 111 to the second reel 112 move one section away from
From, and make filter membrane 400 be reduced to detect position, now, again detect the Beta transmitted intensity through filter membrane 400, if now
The Beta transmitted intensity value detected is I1, so I before and after sampling0Value and I1The change of value reflects absorption on filter membrane 400
The quality of grain thing, in conjunction with the sample volume gathered in the identical period, can draw the particle concentration of sampling periods, sample and examine
After survey, hold assembly 121 moves a segment distance, after sampling and detecting from detection position to the direction near the second reel 112
Filter membrane 400 wrapped up in by the first reel 111 and roll, when needing to detect the particle concentration in air next time, repeat said process.
In the present embodiment, it is to clamp filter membrane by hold assembly 121 and mobile realize due to moving back and forth of filter membrane 400 so that filter
Film 400 does not haves skew during moving back and forth, it is ensured that the accuracy of detection of step-by-step movement Beta ray method solids monitor,
Solve prior art uses rolling grind flowing mode is easily generated deviation accumulative effect and to cause filter membrane 400 constantly to deviate former direction straight
To the problem of fracture damage, can also solve, owing to filter membrane 400 intensity is the lowest, easily to rupture, it is difficult to filter membrane 400 simultaneously
Body move back and forth the problem being controlled by mechanical guide mode.
Referring again to shown in Fig. 2 and Fig. 3, the step-by-step movement Beta ray method particle monitoring instrument of the present embodiment also includes two tensioners
Wheel 113, the filter membrane 400 between the first reel 111 and the second reel 112 is tightened by expansion tightening wheel 113, it is ensured that filter membrane 400 passes
Stability during defeated.Fast pulley 114, consolidating of hold assembly 121 two ends also it is respectively provided with at the two ends of hold assembly 121
Fixed wheel 114 and hold assembly 121 are in same level, make filter membrane 400 keep horizontal movement state in the process of sample detecting,
And then avoid filter membrane 400 damaged.
In the present embodiment, installing rack 100 includes sample detecting portion 101, and this sample detecting portion 101 is arranged on two fast pulleys 114
Between, and this sample detecting portion 101 has installation groove 102, depression direction and first reel 111 of this installation groove 102
Axis direction is consistent, and sampling location and detecting position are setting in sample detecting portion 101 and be positioned at and install the two ends of groove 102.And
Hold assembly 121 includes upper half clamping part 1212 and lower half clamping part 1211, upper half clamping part 1212 and lower half clamping part 1211
It is arranged at installing in groove 102, and the first end of upper half clamping part 1212 and lower half clamping part 1211 is hinged.Work
During, hold assembly 121 has the clamp position making upper half clamping part 1212 and lower half clamping part 1211 fit together, and
Make the non-clamping state that upper half clamping part 1212 and lower half clamping part 1211 separate.Preferably, hold assembly 121 uses metal material
Material manufactures, and its surface is hard and smooth, therefore will not produce adhesion.
Preferably, step-by-step movement Beta ray method particle monitoring instrument also includes hitting hook assembly 140, and this hits hook assembly 140 and is arranged on
On installing rack 100 and be positioned in sample detecting portion 101, this hits hook assembly 140 can trigger upper half clamping part 1212 so that upper half folder
Hold portion 1212 and lower half clamping part 1211 separates and be in non-clamping state, when hold assembly 121 is in non-clamping state, can
To change the filter membrane 400 on detector, simple in construction, easy to operate.
Specifically, hit hook assembly 140 to include hitting hook 141 and the first location screw 142.Wherein, hit hook 141 rotatably to set
Putting on installing rack 100 and be suspended in the top installing groove 102, the hang part hitting hook 141 is positioned at installation groove 102,
It is easy to trigger being arranged on the upper half clamping part 1212 installed in groove 102 so that whole hold assembly 121 is in non-clamping state.
Preferably, hitting hook 141 can start to be rotated in a clockwise direction 0 degree to 180 degree from hang, realizes its hook for hitting hook 141
Hang function and the architecture basics providing necessary that automatically resets.And the first location screw 142 will hit hook 141 and be fixedly installed on installing rack
On 100, simple in construction, it is easy to accomplish.
Preferably, upper half clamping part 1212 arranges and hits the suitable projection of hook 141 1213, it is simple to by upper half clamping part 1212
Trigger.It is highly preferred that projection 1213 is arranged on the edge of the bottom land of the remotely mounted groove 102 of upper half clamping part 1212,
It is easy to and hits hook 141 and coordinate, and the thickness of the end near the second reel 112 of projection 1213 is from the first reel 111 to the second
The direction of reel 112 tapers into and forms an inclined plane, when hold assembly 121 be positioned at hit hook 141 near the first reel
One end of 111 when moving from the direction of first reel the 111 to the second reel 112, can not be inverse from hang owing to hitting hook 141
Hour hands rotate, and now, are triggered by upper half clamping part 1212 by the inclined plane on projection 1213 and the effect hitting hook 141.
When projection 1213 moves past the hang part hitting hook 141, the upper half clamping part 1212 of hold assembly 121 under the effect of telescopic component 123
Again fit with lower half clamping part 1211 moment and recover clamp position.It should be noted that the length of the projection 1213 of the present embodiment
Spend less, be whole upper half clamping part 1212 length 1/5 to 1/7, the length of projection 1213 determines hold assembly 121
Being in displacement during non-clamping state, this effect makes to create one section of relative displacement between hold assembly 121 and filter membrane 400,
All one section of new filter membrane 400 will be used when this displacement ensure that sampling every time and detection.
In other embodiments of the invention, hit the anglec of rotation of hook 141 to can also is that and start in the counterclockwise direction from hang
Rotating 0 degree to 180 degree, the thickness of the end near the second reel 112 of projection 1213 is from first reel the 111 to the second reel
The direction of 112 tapers into.
In the present embodiment, clamping traction component 120 also includes telescopic component 123, and this telescopic component 123 is arranged on hold assembly
The top of 121 is to apply pressure to hold assembly 121, it is ensured that hold assembly 121 can clamp filter membrane during moving back and forth
400, it is further ensured that filter membrane 400 does not haves skew during moving back and forth.
Preferably, installing rack 100 includes installing hole 103, this installing hole 103 be arranged on hold assembly 121 top and with installation
Groove 102 connects.And telescopic component 123 includes spring 1231 and pressing piece 1232, wherein, spring 1231 is arranged on installation
In hole 103；In pressing piece 1232 is arranged on installing hole 103 and under the effect of spring 1231, hold assembly 121 is applied pressure
Power, in the present embodiment, pressing piece 1232 can be any can be arranged on solid structure in installing hole 103.The present invention's
In other embodiments, telescopic component 123 may be arranged as the stretching structures such as cylinder, elastic press.
In the present embodiment, sample detecting assembly 130 includes sampling pump interface 131 and Beta ray detector 132, wherein,
Sampling pump interface 131 is arranged on installing rack 100 so that air is sampled by filter membrane 400；Beta ray detector 132 sets
Put on installing rack 100 so that filter membrane 400 is detected.
As shown in Figures 2 and 3, sampling pump interface 131 and Beta ray detector 132 is arranged at the sampling of installing rack 100
On test section 101, and it is positioned at the lower section in sample detecting portion 101, in other embodiments, it is also possible to be arranged on sample detecting portion 101
Top.During work, when filter membrane 400 is moved the top to sampling pump interface 131 interface by hold assembly 121, sampling pump
Interface 131 carries out sampling of bleeding, and is filtered by filter membrane 400 and adsorbs in filter when making the suspended particulate substance in air through filter membrane 400
The surface of film 400, and when filter membrane 400 is moved to time above Beta ray detector 132 by hold assembly 121, Beta ray
Detector 132 detects ray that Beta radiographic source sends through the Beta transmitted intensity value after filter membrane 400, thus realizes sampling inspection
Survey the sample detecting function of assembly 130.
Preferably, the sampling pump interface 131 in the present embodiment is arranged on the side near the first reel 111 in sample detecting portion 101,
Beta ray detector 132 is arranged on the side near the second reel 112 in sample detecting portion 101 so that step-by-step movement Beta is penetrated
The detection process of collimation method solids monitor can be carried out more swimmingly, reduces filter membrane 400 and back and forth transports in sample detecting portion 101
Dynamic number of times, and then prevent filter membrane 400 from damaging in motor process.Simultaneously, additionally it is possible to when preventing filter membrane 400 and extraneous contact
Between long and affect particle concentration detection accuracy.
In the present invention, clamping traction component 120 also includes driving assembly 122, drives assembly 122 to drive with hold assembly 121
Connect so that the filter membrane 400 clamped between the first reel 111 and the second reel 112 at hold assembly 121 moves back and forth,
And then realize the sample detecting process of filter membrane 400, complete the detection to particulate in air concentration.Being preferable to carry out in the present invention
In example, driving assembly 122 to include drive block 1214, this drive block 1214 is driven Component driver by dicyclo groove, at its of the present invention
In his embodiment, drive the drive block 1214 of assembly 122 motor etc. can also be driven to drive by driving cylinder.
See shown in Fig. 4 to Fig. 9, in a kind of preferred embodiment of the present invention, drive assembly 122 drive block 1214 by
Dicyclo groove drives Component driver.This dicyclo groove drive assembly include installing rack 100, dicyclo channel parts 210, rigidity conveyer belt 220,
Actuator 230 and guiding parts 240.Wherein, installing rack 100 is provided with driven object body 300, when by the present embodiment
When dicyclo groove drives assembly to use on Beta ray method particle monitoring instrument, driven object body 300 is drive block 1214；Dicyclo
Channel parts 210 includes first disk body the 211, second disk body 212 and the 3rd disk body 213 that be fixedly connected sequentially, the first disk body 211
With second form the first annular groove 214 between disk body 212, between the second disk body 212 and the 3rd disk body 213, form the second annular groove 215；
Rigidity conveyer belt 220 is through the second disk body 212 and is embedded in the first annular groove 214 and the second annular groove 215, and rigidity conveyer belt
The two ends of 220 are separately fixed at the two ends of driven object body 300；Actuator 230 is fixing with dicyclo channel parts 210 to be connected to drive
Dicyclo channel parts 210 forward or reverse；Guiding parts 240 is arranged on the transmission on installing rack 100, to rigidity conveyer belt 220
Direction guides.During work, actuator 230 drives dicyclo channel parts 210 forward or reverse, thus drives from the second disk body
The rigidity conveyer belt 220 that 212 both sides annular grooves are drawn is wound around and discharges, and is then driven by the guiding function of guiding parts 240 and is driven
Animal body 300 moves reciprocatingly.Conveyer belt in the present embodiment is rigidity conveyer belt 220, it is possible to effectively prevent driven object body
300 there is offset deviation at reciprocatory movement.Additionally, in the present embodiment, the setting of guiding parts 240 makes whole dicyclo
Groove drives the easy for installation, flexible, in the especially suitable structure less at installing space of assembly.
It should be noted that the rigidity conveyer belt 220 described in the present embodiment refer to can arbitrarily bending but can not stretch, not have
Standby elastic conveyer belt.
In order to form the first annular groove 214 and the second annular groove 215, arranging on the end face of the second disk body 212 of the first disk body 211
Two semi arch raised lines 2111, two semi arch raised line 2111 docking form a circle, and two semi arch raised lines 2111 dock position
The place of putting is provided with first and steps down groove 2112, when the first disk body 211 and the second disk body 212 are fitted, two semi arch raised lines 2111
The periphery of the circle that docking is formed forms the first annular groove 214；And be provided with on the end face of close 3rd disk body 213 of the second disk body 212
It is provided with resigning hole (not marking in figure) on round bump 2121, and round bump 2121, round bump 2121 is additionally provided with
Second connected with resigning hole is stepped down groove 2122, when the second disk body 212 and the 3rd disk body 213 are fitted, round bump 2121
Periphery forms the second annular groove 215.In order to ensure that actuator 230 can carry during driving dicyclo channel parts 210 forward or reverse
Dynamic driven object body 300 moves back and forth, being provided that of the rigidity conveyer belt 220 of the present embodiment
Rigidity conveyer belt 220 is through the resigning hole on the second disk body 212, now, is positioned at close first disk body 211 of resigning hole
The rigidity conveyer belt 220 of side is stepped down groove 2112 through first, and in being located at the first annular groove 214, is positioned at resigning hole close
The rigidity conveyer belt 220 of the 3rd disk body 213 side is stepped down groove 2122 through second, and in being located at the second annular groove 215, and
The winding of the rigidity conveyer belt 220 in the first annular groove 214 and the second annular groove 215 is in opposite direction, and makes rigidity conveyer belt 220
Being parallel to each other from dicyclo channel parts 210 exit, the first annular groove 214 and the second annular groove 215 are annular groove, and ensure first
The radius of annular groove 214 and the second annular groove 215 is equal.
During driving assembly to be connected with driven object body 300 the dicyclo groove of the present embodiment, the of driven object body 300
One end to the second end is provided with at least one first through hole 310, and it is logical with first to be additionally provided with at least one on driven object body 300
Second through hole 320 of hole 310 connection, the two ends of rigidity conveyer belt 220 are located in the first through hole 310 respectively, and by wearing
Keeper 330 in the second through hole 320 is fixed in the first through hole 310.As shown in Figure 8, the present embodiment is provided with four
Individual first through hole 310, the first end of rigidity conveyer belt 220 and the second end are walked around two therein respectively, and are passed through keeper 330
Being fixed in the first through hole 310, reliability is high, simple in construction and being easily achieved.It should be noted that in fixation procedure,
Need to strain rigidity conveyer belt 220, it is to avoid when dicyclo channel parts 210 rotates, owing to rigidity conveyer belt 220 is in dicyclo groove
Folding and unfolding length different and cause damage, the most also can improve the driven object body 300 stability in motor process.
Preferably, the second through hole 320 is screwed hole, and keeper 330 is lock-screw, quick and easy for installation, it is easy to adjust.
Preferably, first disk body the 211, second disk body 212 in the present embodiment and the 3rd disk body 213 are by latch assembly 250
Locking, it is ensured that dicyclo groove drives assembly stability during driving and reliability.It is highly preferred that latch assembly 250 includes
Lock-screw 251, first disk body the 211, second disk body 212 and the 3rd disk body 213 are provided with and lock-screw 251 phase
Adaptive screwed hole 252.In other embodiments of the invention, also latch assembly 250 can be set to pin and by the two of pin
End locking is to fix the first disk body the 211, second disk body 212 and structure of the 3rd disk body 213.
Preferably, the actuator 230 in the present embodiment is for driving motor.In order to driving motor is connected with dicyclo channel parts 210
Getting up, the end face away from the second disk body 212 of the first disk body 211 or the 3rd disk body 213 is provided with connection boss 216, connects convex
Being provided centrally with and driving the axle of motor to be connected hole 217 of platform 216, during connection, drives motor and is connected between boss 216
Locked by locking member (not shown).
In the present embodiment, guiding parts 240 includes that multiple directive wheel 241, the plurality of directive wheel 241 are fixed on installing rack 100
On, the part from dicyclo channel parts 210 extraction of rigidity conveyer belt 220 rides upon directive wheel 241, by directive wheel 241
Effect with change rigidity conveyer belt 220 transmission direction.
In the present embodiment, dicyclo channel parts 210 is arranged on the lower section of driven object body 300；Multiple directive wheels 241 are four,
First and second the first side being arranged on dicyclo channel parts 210 in four directive wheels 241, and first directive wheel 241
With dicyclo channel parts 210 in same level, second directive wheel 241 is positioned in same level with driven object body 300,
The rigidity conveyer belt 220 of dicyclo channel parts 210 first side is sequentially sleeved at first directive wheel 241 and second directive wheel 241
On, to change the transmission direction of rigidity conveyer belt 220；Similarly, the 3rd in four directive wheels 241 and the 4th setting
In the second side of dicyclo channel parts 210, and the 3rd directive wheel 241 and dicyclo channel parts 210 are in same level, and the 4th
Individual directive wheel 241 is positioned in same level with driven object body 300, the rigidity conveyer belt 220 of dicyclo channel parts 210 second side
It is sequentially sleeved on the 3rd directive wheel 241 and the 4th directive wheel 241, to change the transmission direction of rigidity conveyer belt 220.
In other embodiments of the invention, the number of directive wheel 241 and position is set can be according to concrete structural requirement and driving side
To and arrange, as long as the set-up mode under the design of the present invention is all within protection scope of the present invention.Preferably, this reality
Rigidity conveyer belt 220 in executing is steel wire rope, and steel wire rope cross section is little, and does not has directivity to retrain, and takes up room little, intensity
Height, is hardly damaged and with low cost.
According to the above embodiments it is recognised that dicyclo groove drives the compact conformation of assembly the collection of beneficially photoelectric sensor 500
Middle layout and the reduction of instrument volume.
Shown in Figure 10 and Figure 11, in the present embodiment, assembly 122 is driven to include drive block 1214, hold assembly 121
Upper half clamping part 1212 is connected with drive block 1214 with the hinged end of lower half clamping part 1211.And step-by-step movement Beta ray method granule
Thing monitor also includes adjusting apparatus 150, and this adjusting apparatus 150 includes fixed plate 151 and adjustment plate 152, wherein, fixed plate
151 are fixed on drive block 1214, and the length direction of drive block 1214 is consistent with the direction of motion of hold assembly 121；Adjust
Plate 152 is arranged in fixed plate 151, and adjustment plate 152 can relative movement with drive block 1214.Work at particle monitoring instrument
During, it is provided with photoelectric sensor 500 at detection position and sampling location, drives hold assembly when driving assembly 122
During 121 move back and forth, trigger photoelectric sensor 500 to control the shifting of drive block 1214 by the two ends of fixed plate 151
Dynamic position.But, aforementioned Photon-Electron sensor 500 displacement of the drive block 1214 controlled and detection position and sample bits
Would generally there is deviation in the actual range between putting, make drive block 1214 to be accurately positioned due to foozle, now, and can
The displacement of drive block 1214 to be finely adjusted by the Accommodation of adjustment plate 152, drive block 1214 is made to be accurately positioned,
And then drive hold assembly 121 to be accurately positioned, it is ensured that the accuracy of detection of step-by-step movement Beta ray method particle monitoring instrument.
Preferably, the driving assembly 122 of the present embodiment also includes guide way 1217, and this guide way 1217 is arranged on installing rack 100
On, drive block 1214 is set on guide way 1217 movably, when dicyclo groove drives Component driver drive block 1214 to move,
Drive block 1214 moves along the length direction of guide way 1217, and then drives hold assembly 121 to move, and prevents hold assembly 121
The direction of motion is uncertain and affects the accuracy of detection of particle concentration.It is highly preferred that the guide way 1217 in the present embodiment is fixing
It is arranged on the lead on installing rack 100, simple in construction, it is easy to accomplish.
Specifically, the first side of drive block 1214 is provided with suspending part 1215；The length direction of adjustment plate 152 and fixed plate
The length direction of 151 is consistent, and adjustment plate 152 stretch out in fixed plate 151, adjustment plate 152 away from drive block 1214 end
First end is positioned at the lower section of suspending part 1215, and the first end of adjustment plate 152 is provided with the first mounting hole 1521, this first mounting hole
The length direction of 1521 is perpendicular to the length direction of adjustment plate 152；Second end of adjustment plate 152 is provided with the second mounting hole 1522,
The length direction of the second mounting hole 1522 is consistent with adjustment plate 152 length direction, and adjustment plate 152 is by being arranged on the second mounting hole
Screw 155 in 1522 is limited in fixed plate 151；Adjusting apparatus 150 also includes eccentric adjustment axle 153, suspending part 1215
On be provided with setting-up eccentricity and adjust the smooth circular hole 1216 of axle 153, eccentric the first end adjusting axle 153 is provided with eccentric block 1531,
And eccentric block 1531 is located in described first mounting hole 1521.In the relative position adjusting drive block 1214 and adjustment plate 152
During, it is only necessary to directly rotating eccentricity adjusts axle 153, so that it may so that adjustment plate 152 moves back and forth.Preferably, adjustment plate
It is additionally provided with circlip 154, to avoid the eccentric axle 153 that adjusts to depart from suspending part 1215 between 152 and eccentric adjustment axle 153
On smooth circular hole 1216.
The work process introducing step-by-step movement Beta ray method particle monitoring instrument below in conjunction with the concrete structure of above-described embodiment is as follows:
(1) seeing shown in Fig. 2 and Fig. 3, clamping traction component 120 is driven by the drive block 1214 driving assembly 122 and moves to
Change film location A, in the process, due to the basal surface position of the projection 1213 of clamping traction component 120 upper half clamping part 1212
Less than hitting the hang part of hook 141, and hit hook 141 and be restricted from the counterclockwise direction rotating, so clamping traction component 120
Upper half clamping part 1212 lifted by the hang part hitting hook 141, the replaceable new filter membrane 400 of volume in this position；
(2) restarting instrument after changing filter membrane 400, clamping traction component 120 moves to the direction near the second reel 112
To moving back film location B, the hooking of hook 141 is hit in now projection 1213 disengaging due to clamping traction component 120 upper half clamping part 1212
Portion, under the effect of spring 1231, clamping traction component 120 upper half clamping part 1212 closes downwards and is compressed by filter membrane 400；
(3) clamping traction component 120 is in the state compressed by filter membrane 400 under the effect of spring 1231 and drags filter membrane 400
Detection position C is moved to reach to the direction near the first reel 111 by moving back film location B；At this position Beta ray detector 132
Detect that the ray that Beta radiographic source sends passes the Beta transmitted intensity I after cleaning filter membrane 4000Value；Owing to hitting hook 141 suitable
Clockwise is spacing less than not having in the range of 180 degree, can freely turn over certain angle, so clamping draw groups in the process
Part 120 top projection 1213 can will hit that hook 141 is pushed open and self will not be lifted；
(4) clamping traction component 120 is in the state compressed by filter membrane 400 under the effect of spring 1231 and drags filter membrane 400
Sampling location D is moved to reach to the direction near the first reel 111 by detection position C；Utilize at this position instrument and connect constant current
The sampling pump interface 131 of sampling pump carries out sampling of bleeding, filtered by filter membrane 400 when the suspended particulate substance in air is through filter membrane and
Absorption is on filter membrane 400 surface；Hit hook 141 its initial position of auto-returned counterclockwise under Gravitative Loads in the process；
(5) clamping traction component 120 is in the state compressed by filter membrane 400 under the effect of spring 1231 and drags filter membrane 400
Moved to detection position C to the direction near the second reel 112 by sampling location D；At this position Beta ray detector 132
Detect that ray that Beta radiographic source sends is through being adsorbed with the Beta transmitted intensity I after the filter membrane 400 of particulate matter1Value；Before sampling
Rear I0Value and I1The change of value reflects the quality of adsorption particle thing on filter membrane 400, in conjunction with the sample volume gathered in the identical period,
The particle concentration of sampling periods can be drawn；
(6) clamping traction component 120 is moved to the direction near the second reel 112 by detection position C, now leads due to clamping
The basal surface position of the projection 1213 drawing assembly 120 upper half clamping part 1212 slightly below hits the hang part of hook 141, and hits hook 141
It is blocked in the counterclockwise direction and can not rotate, so when the projection 1213 of clamping traction component 120 upper half clamping part 1212 moves past
Can be lifted when hitting the hang part of hook 141, now clamping traction component 120 loses the pressure to filter membrane 400, in clamping traction
During the projection 1213 of assembly 120 upper half clamping part 1212 moves past the hang part hitting hook 141, filter membrane 400 will not be with
Clamping traction component 120 moves, and therefore will produce certain relative displacement between clamping traction component 120 and filter membrane 400, its
Displacement depends on the length clamping the projection 1213 of traction component 120 upper half clamping part 1212；
(7) clamping traction component 120 arrives and moves back film location B, now due to clamping traction component 120 upper half clamping part 1212
Projection 1213 depart from and hit the hang part of hook 141, under the effect of spring 1231, clamp traction component 120 upper half clamping part 1212
Filter membrane 400 is compressed by moment Guan Bi again downwards, the relative displacement now produced between clamping traction component 120 and filter membrane 400
Having prepared new one section of filter membrane 400 for next detection cycle, this detection cycle completes；
(8) next detection cycle will repeat (3)～the process of (7).
According to the above embodiments, present invention achieves following technique effect:
(1) stability that filter membrane moves back and forth, the parallelism error of lowering apparatus are improved；
(2) improve the positioning precision that filter membrane moves back and forth, thus improve the accuracy of detection of instrument；
(3) adjusting apparatus is conveniently set and is finely adjusted elimination position error with the location to mobile parts；
(4) compact conformation the beneficially centralized layout of photoelectric sensor 500 and the reduction of instrument volume.
(5) simple in construction, cheap for manufacturing cost；
(6) topology layout is flexible, is susceptible to locus constraint.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of being made, etc.
With replacement, improvement etc., should be included within the scope of the present invention.
Claims (13)
1. a step-by-step movement Beta ray method particle monitoring instrument, it is characterised in that including:
Installing rack (100), described installing rack (100) has sampling location and detection position；
Wound membrane assembly (110), described wound membrane assembly (110) is arranged on described installing rack (100), described wound membrane assembly
(110) including the first reel (111) and the second reel (112), the upper volume of described second reel (112) is provided with sampling and uses
Filter membrane (400), described first reel (111) is used for wrapping up in be rolled up from come sampled of the second reel (112) transmission and detects
After filter membrane (400)；
Clamping traction component (120), described clamping traction component (120) is arranged on described installing rack (100), described
Clamping traction component (120) includes that hold assembly (121), described hold assembly (121) are reciprocally disposed within institute
State between the first reel (111) and described second reel (112) to clamp and to drive described first reel (111) and institute
State the filter membrane (400) between the second reel (112), and make described filter membrane (400) in described sampling location and described detection
Move back and forth between position；
Sample detecting assembly (130), described sample detecting assembly (130) is arranged on described installing rack (100), in institute
Stating hold assembly (121) clamps and drives described filter membrane (400) to move back and forth to described sampling location and described detection position
Time, correspondingly described filter membrane (400) is sampled and detected.
Step-by-step movement Beta ray method particle monitoring instrument the most according to claim 1, it is characterised in that described clamping draw groups
Part (120) also includes driving assembly (122), described driving assembly (122) to drive even with described hold assembly (121)
Connect so that described hold assembly (121) clamps between described first reel (111) and described second reel (112)
Described filter membrane (400) moves back and forth.
Step-by-step movement Beta ray method particle monitoring instrument the most according to claim 2, it is characterised in that described installing rack (100)
Including:
Sample detecting portion (101), described sample detecting portion (101) has installation groove (102), described installation groove (102)
Depression direction consistent with the axis direction of described first reel (111), described sampling location and described detection position are all provided with
Put two ends that are upper described sample detecting portion (101) and that lay respectively at described installation groove (102)；
Described hold assembly (121) including:
Upper half clamping part (1212), described upper half clamping part (1212) is arranged in described installation groove (102)；
Lower half clamping part (1211), described lower half clamping part (1211) is arranged in described installation groove (102), described
Lower half clamping part (1211) is hinged with the first end of described upper half clamping part (1212), described hold assembly (121)
There is the clamp position making described upper half clamping part (1212) and described lower half clamping part (1211) fit together, and make
The non-clamping state that described upper half clamping part (1212) and described lower half clamping part (1211) separate.
Step-by-step movement Beta ray method particle monitoring instrument the most according to claim 3, it is characterised in that described step-by-step movement Beta
Ray method particle monitoring instrument also includes:
Hit hook assembly (140), described in hit hook assembly (140) and be arranged on described installing rack (100), described in hit hook assembly
(140) described upper half clamping part (1212) can be triggered so that described hold assembly (121) is in described non-clamping state.
Step-by-step movement Beta ray method particle monitoring instrument the most according to claim 4, it is characterised in that described in hit hook assembly (140)
Including:
Hit hook (141), described in hit hook (141) and can be rotatably set on described installing rack (100), described in hit hook (141)
Hook portion be positioned at described installation groove (102), and described in hit hook (141) and can start along side clockwise from hang
To rotating 0 degree to 180 degree；
The upper setting of described upper half clamping part (1212) hits hook (141) suitable projection (1213) with described；
First location screw (142), the described hook (141) that hits is fixedly installed on described by described first location screw (142)
On installing rack (100).
Step-by-step movement Beta ray method particle monitoring instrument the most according to claim 5, it is characterised in that described projection (1213)
It is arranged on the edge of the bottom land away from described installation groove (102) of described upper half clamping part (1212), and described convex
The thickness of the end of close described second reel (112) of block (1213) from described first reel (111) to described second
The direction of reel (112) tapers into.
Step-by-step movement Beta ray method particle monitoring instrument the most according to claim 3, it is characterised in that described clamping draw groups
Part (120) also includes:
Telescopic component (123), described telescopic component (123) is arranged on the top of described hold assembly (121) with to described
Hold assembly (121) applies pressure.
Step-by-step movement Beta ray method particle monitoring instrument the most according to claim 7, it is characterised in that described installing rack (100)
Including installing hole (103), described installing hole (103) be arranged on described hold assembly (121) top and with described installation
Groove (102) connects, and described telescopic component (123) including:
Spring (1231), described spring (1231) is arranged in described installing hole (103)；
Pressing piece (1232), in described pressing piece (1232) is arranged on described installing hole (103) and in described spring (1231)
Effect under to described hold assembly (121) apply pressure.
Step-by-step movement Beta ray method particle monitoring instrument the most according to claim 5, it is characterised in that described sample detecting group
Part (130) including:
Sampling pump interface (131), it is upper so that described filter that described sampling pump interface (131) is arranged on described installing rack (100)
Air is sampled by film (400)；
Beta ray detector (132), described Beta ray detector (132) is arranged on described installing rack (100)
So that described filter membrane (400) is detected.
Step-by-step movement Beta ray method particle monitoring instrument the most according to claim 9, it is characterised in that described sampling pump interface
(131) lower section of described sample detecting portion (101) it is arranged at described Beta ray detector (132), and described
Sampling pump interface (131) is arranged on the side of close described first reel (111) of described sample detecting portion (101),
Described Beta ray detector (132) is arranged on close described second reel (112) of described sample detecting portion (101)
Side.
11. step-by-step movement Beta ray method particle monitoring instruments according to claim 3, it is characterised in that described driving assembly (122)
Hinged end and institute including drive block (1214), described upper half clamping part (1212) and described lower half clamping part (1211)
State drive block (1214) to connect；
Described step-by-step movement Beta ray method particle monitoring instrument also includes adjusting apparatus (150), described adjusting apparatus (150)
Including:
Fixed plate (151), described fixed plate (151) is fixed on described drive block (1214), and described fixed plate (151)
Length direction consistent with the direction of motion of described hold assembly (121)；
Adjustment plate (152), described adjustment plate (152) is arranged in fixed plate (151), and described adjustment plate (152)
Can arrange relatively movably with described drive block (1214).
12. step-by-step movement Beta ray method particle monitoring instruments according to claim 11, it is characterised in that described drive block (1214)
The first side be provided with suspending part (1215), the length direction of described adjustment plate (152) and described fixed plate (151)
Length direction is consistent, and the end away from described drive block (1214) of described adjustment plate (152) stretches out in described fixing
Plate (151)；
First end of described adjustment plate (152) is positioned at the lower section of described suspending part (1215), described adjustment plate (152)
First end is provided with the first mounting hole (1521), and the length direction of described first mounting hole (1521) is perpendicular to described adjustment
The length direction of plate (152)；
Second end of described adjustment plate (152) is provided with the second mounting hole (1522), described second mounting hole (1522)
Length direction is consistent with described adjustment plate (152) length direction, and described adjustment plate (152) is by being arranged on the second mounting hole
(1522) screw (155) in is limited in described fixed plate (151)；
Described adjusting apparatus (150) also includes eccentric adjustment axle (153), and described suspending part (1215) arranges circular hole (1216)
The described eccentric axle (153) that adjusts is arranged in described circular hole (1216), and described eccentric the first end adjusting axle (153) sets
It is equipped with eccentric block (1531) and is positioned at described first mounting hole (1521).
13. step-by-step movement Beta ray method particle monitoring instruments according to claim 11, it is characterised in that described driving assembly
(122) also include that guide way (1217), described guide way (1217) are arranged on described installing rack (100), described
Drive block (1214) is set on described guide way (1217) movably.
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| CN201410251436.8A CN104007048B (en) | 2014-06-06 | 2014-06-06 | Step-by-step movement Beta ray method particle monitoring instrument |
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| CN201410251436.8A CN104007048B (en) | 2014-06-06 | 2014-06-06 | Step-by-step movement Beta ray method particle monitoring instrument |
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| CN104007048B true CN104007048B (en) | 2016-08-24 |
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| CN201410251436.8A Expired - Fee Related CN104007048B (en) | 2014-06-06 | 2014-06-06 | Step-by-step movement Beta ray method particle monitoring instrument |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330342B (en) * | 2014-11-05 | 2017-07-21 | 青岛众瑞智能仪器有限公司 | A kind of modular transportable PM2.5 sampling and analyzing devices |
| CN104359816A (en) * | 2014-11-19 | 2015-02-18 | 武汉怡特环保科技有限公司 | Beta-ray atmospheric particulate matter monitoring device |
| CN104483249B (en) * | 2014-12-31 | 2017-08-11 | 江苏天瑞仪器股份有限公司 | Particulate matter quality concentration and elemental composition dual-beam automatic detection device in gas |
| CN105738261B (en) * | 2016-02-23 | 2018-12-11 | 中煤科工集团重庆研究院有限公司 | Filter paper translation device of β ray method atmospheric particulates monitor |
| CN105738262B (en) * | 2016-02-23 | 2018-09-28 | 中煤科工集团重庆研究院有限公司 | β three-channel atmospheric particulate monitor by ray method |
| CN107402172A (en) * | 2017-07-27 | 2017-11-28 | 中绿环保科技股份有限公司 | Automatic filter membrane clamping device in PM2.5 particle monitoring instruments |
| CN108190576A (en) * | 2017-12-29 | 2018-06-22 | 深圳市华唯计量技术开发有限公司 | A kind of transfer assembly and particle concentration detection device and detection method |
| CN108181216B (en) * | 2018-01-16 | 2023-09-22 | 青岛和诚环保科技有限公司 | Beta ray smoke tester |
| CN111337399B (en) * | 2020-04-09 | 2022-11-11 | 合肥福瞳光电科技有限公司 | Monitoring mechanism for concentration of atmospheric particulate matter |
| CN112098285B (en) * | 2020-09-10 | 2021-04-06 | 天津同阳科技发展有限公司 | Volatile particulate matter compensation measuring device and method based on beta-ray method |
| CN113418735B (en) * | 2021-05-31 | 2023-04-28 | 邹屹洋 | Continuous sampling device capable of automatically feeding and returning materials |
| CN114045217B (en) * | 2022-01-11 | 2022-04-19 | 至美时代生物智能科技(北京)有限公司 | Air microorganism sampling device and air microorganism sampling and detecting integrated device |
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| SU1693990A1 (en) * | 1989-05-10 | 1997-01-20 | Л.Н. Москвин | Method for monitoring alpha-radiating radionuclides in water coolant of nuclear power plant |
| CN1394286A (en) * | 2000-01-13 | 2003-01-29 | 浜松光子学株式会社 | Radiation image sensor and scintillator panel |
| CN1739022A (en) * | 2003-03-28 | 2006-02-22 | 理学电机工业株式会社 | Fluorescent x-ray analyzer |
| CN204008388U (en) * | 2014-06-06 | 2014-12-10 | 北京中晟泰科环境科技发展有限责任公司 | Step-by-step movement Beta rays method particle monitoring instrument |
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| US6964190B2 (en) * | 2002-06-28 | 2005-11-15 | Horiba, Ltd. | Particulate matter concentration measuring apparatus |
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|---|---|---|---|---|
| SU1693990A1 (en) * | 1989-05-10 | 1997-01-20 | Л.Н. Москвин | Method for monitoring alpha-radiating radionuclides in water coolant of nuclear power plant |
| CN1394286A (en) * | 2000-01-13 | 2003-01-29 | 浜松光子学株式会社 | Radiation image sensor and scintillator panel |
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