CN204330428U - Moveable high-pressure electrostatic particle thing sampling apparatus and high-pressure electrostatic sampling apparatus - Google Patents
Moveable high-pressure electrostatic particle thing sampling apparatus and high-pressure electrostatic sampling apparatus Download PDFInfo
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- CN204330428U CN204330428U CN201420429126.6U CN201420429126U CN204330428U CN 204330428 U CN204330428 U CN 204330428U CN 201420429126 U CN201420429126 U CN 201420429126U CN 204330428 U CN204330428 U CN 204330428U
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Abstract
Moveable high-pressure electrostatic particle thing sampling apparatus of the present utility model and high-pressure electrostatic sampling apparatus, comprise the isokinetic sampling's head connected successively, cutter and high-pressure electrostatic sampling apparatus and PC, isokinetic sampling's head such as to comprise at kinetic head and the constant speed pipe, other one end of constant speed pipe is removably mounted on the air inlet of cutter top by " L " molded cannula, constant speed pipe is installed with pitot tube, pitot tube signal transmitting device is connected with PC, Moveable high-pressure electrostatic particle thing sampling apparatus also comprises regulation device, regulation device comprises the flowmeter be connected successively with the air outlet of high-pressure electrostatic sampling apparatus, ratio adjusting valve and vacuum pump.Moveable high-pressure electrostatic particle thing sampling apparatus of the present utility model can solve the problem that current Electrostatic collection cannot sample in movement or under higher wind velocity condition, ensured the representativeness of particle sampling, the reliability of sampled data and existing particle cutting technique cannot move in or carry out the technical matters of continuous sampling under different wind speed.
Description
Technical field
The utility model relate to a kind of sampling apparatus, particularly a kind of particle high-pressure electrostatic sampling apparatus be applied under airborne, vehicle-mounted, mobile device and change wind friction velocity.
Background technology
At present, the extreme weather that pollutes takes place frequently, and Particulate Pollution attracts public is paid close attention to, and government has also put into effect serial policy and administered Particulate Pollution.Study for comparing with ground monitoring data, need to carry out aerial survey, and existing electrostatic particle thing sampling thief is ground stationary monitoring mode, when for mobile sampling, during in particular for aerial survey, during as monitored on the aircrafts such as unmanned plane or fortune 12, sampling thief extraneous air flow velocity is high, the gas flow of sampling thief inside can increase sharply, impulsive force is large, sampling thief inner and outer air pressure difference is large, sampling thief easily produces high vibration, mobile sampling difficulty, and the reliability of data cannot be ensured, the representativeness of sampling, these are all current urgent problems.
In addition, to the sampling of Atmospheric Grains, normally adopt Sampling particles thing cutting head technology, be used for obtaining the particle of different-grain diameter, cutting head technology degree of freedom is less, can not continuous acquisition be used for the different condition of electronic microscope photos under, the aerosol sample of different-grain diameter, particularly in the experiment of development catalyzer, often need the particle continuous acquisition in air and air channel to be used for electronic microscope photos to several copper mesh film, this is unpractical for cutting head technology.
Utility model content
The technical matters that the goal of the invention of the application is to solve that current sampling instrument sample introduction repeatability when mobile sampling is low, sampled data poor reliability and existing cutting head technology cannot carry out continuous sampling under different wind speed, and a kind of movable type is provided or becomes the Moveable high-pressure electrostatic particle thing sampling apparatus of wind speed.
In order to complete the goal of the invention of the application, the application samples following technical scheme:
Moveable high-pressure electrostatic particle thing sampling apparatus of the present utility model, comprise isokinetic sampling's head, cutter and high-pressure electrostatic sampling apparatus and PC, described isokinetic sampling's head such as to comprise at kinetic head and the constant speed pipe, described one end of waiting kinetic head to be removably installed in described constant speed pipe, other one end of described constant speed pipe is removably mounted on by " L " molded cannula on the air inlet at described cutter top, the air outlet of described cutter is communicated in the air inlet of described high-pressure electrostatic sampling apparatus, described constant speed pipe is installed with pitot tube, the signal transmitting device of described pitot tube is connected with described PC, described Moveable high-pressure electrostatic particle thing sampling apparatus also comprises regulation device, described regulation device comprises flowmeter, ratio adjusting valve and vacuum pump, the air outlet of described high-pressure electrostatic sampling apparatus is connected to described vacuum pump by ventilating duct, described ventilating duct is provided with described flowmeter and ratio adjusting valve, described flowmeter, ratio adjusting valve and vacuum pump are connected with described PC respectively.
Static pressure and the dynamic pressure of sampling apparatus extraneous air when transporter/mechanically moving runs can be recorded by pitot tube, by signal transmitting device, the data recorded are transferred to PC simultaneously, and flowmeter can record sampling apparatus internal gas pressure, so just, the draught head that sampling apparatus is inside and outside can be drawn, then PC controls vacuum pump and extracts the inner a certain amount of air of sampling apparatus out to make sampling apparatus inside and outside pressure consistent, so just, the stability of sampling apparatus can be ensured, ensure the reliability of sampled data, sample introduction repeatability.
High-pressure electrostatic sampling apparatus described in the utility model comprises casing and laterally runs through the stopple coupon of described casing, one end of described stopple coupon is the air inlet be connected with described cutter, one end is the air outlet be connected with described regulation device in addition, the bottom of described stopple coupon has sampling through hole, sampling pallet is installed in described casing, be fixed in the spacing rotating disk of described sampling pallet bottom and drive the motor of spacing dial rotation, described sampling pallet is discoid, the upper surface of described sampling pallet is distributed with at least two standing grooves for installing copper mesh film about disc centre symmetry, wherein at least one standing groove is positioned at immediately below described sampling through hole.
Copper mesh film described in the utility model is installed in described standing groove by fixation kit, described fixation kit is three grades of up-small and down-big stepped boss, the first order boss face being positioned at topmost is provided with copper mesh film, second level boss face is resisted against the lower surface of described stopple coupon, described second level boss face is provided with O-ring seal, third level boss face is buckled in described standing groove, the opening part of described standing groove has draw-in groove limit, be provided with back-moving spring between described third level boss face and described draw-in groove limit, the bottom of described stepped boss is also provided with groove.
High-pressure electrostatic sampling apparatus described in the utility model comprises high pressure generator, the electrode needle be connected with described high pressure generator and brush, the afterbody of described electrode needle is fixed on the upper end face of described box house, the sharp portion of described electrode needle passes perpendicularly through the upper tube wall of described stopple coupon and punctures to the sampling through hole of described stopple coupon, the brush portion of described brush passes the bottom land of described standing groove and leans in described groove, the afterbody of described brush is connected with push rod, and described push rod is by the bottom surface of spring fitting in described box house.
Multiple copper mesh film placed by sampling pallet, is rotated by Motor Control sampling pallet, copper mesh film to rotate and sample in the below coming sampling through hole successively along with sampling pallet, thus realizes continuous sampling.
Push rod described in the utility model is fixed with transposition plate, described transposition plate matches to make push rod do vertical up-or-down movement with described spacing rotating disk, described spacing rotating disk bottom surface is provided with at least two arc-shaped protrusions about bottom center's symmetry, and described transposition plate has the arc-shaped recess corresponding with described arc-shaped protrusions.
High pressure generator described in the utility model, motor are connected with described PC respectively.
Cutter described in the utility model is whirlwind cutter, and described vacuum pump is sliding vane rotary pump.
Flowmeter described in the utility model and ratio adjusting valve can replace by service property (quality) flow controller, and described mass flow controller is connected with described PC, and described casing has sampling window.
The utility model also provides a kind of high-pressure electrostatic sampling apparatus, comprise casing and the horizontal stopple coupon running through described casing, one end of described stopple coupon is the air inlet be connected with described cutter, one end is the air outlet be connected with described regulation device in addition, the bottom of described stopple coupon has sampling through hole, it is characterized in that: sampling pallet is installed in described casing, be fixed in the spacing rotating disk of described sampling pallet bottom and drive the motor of spacing dial rotation, described sampling pallet is discoid, the upper surface of described sampling pallet is distributed with at least two standing grooves for installing copper mesh film about disc centre symmetry, wherein at least one standing groove is positioned at immediately below described sampling through hole, described copper mesh film is installed in described standing groove by fixation kit, described fixation kit is three grades of up-small and down-big stepped boss, the first order boss face being positioned at topmost is provided with copper mesh film, second level boss face is resisted against the lower surface of described stopple coupon, described second level boss face is provided with O-ring seal, third level boss face is buckled in described standing groove, the opening part of described standing groove has draw-in groove limit, between described third level boss face and described draw-in groove limit, back-moving spring is installed, the bottom of described stepped boss is also provided with groove.
Above-mentioned high-pressure electrostatic sampling apparatus also comprises high pressure generator, the electrode needle be connected with described high pressure generator and brush, the afterbody of described electrode needle is fixed on the upper end face of described box house, the sharp portion of described electrode needle passes perpendicularly through the upper tube wall of described stopple coupon and punctures to the sampling through hole of described stopple coupon, the brush portion of described brush passes the bottom land of described standing groove and leans in described groove, the afterbody of described brush is connected with push rod, described push rod is by the bottom surface of spring fitting in described box house, described brush under the effect of push rod by the copper mesh film top on described stepped boss to described electrode needle, described high pressure generator, motor is connected with described PC respectively.
Moveable high-pressure electrostatic particle thing sampling apparatus of the present utility model can be applicable to the measuring equipment etc. of airborne, vehicle-mounted, mobile device and change wind speed, and high-pressure electrostatic sampling apparatus can manufacture use separately, can continuous sampling.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of Moveable high-pressure electrostatic particle thing sampling apparatus of the present utility model;
Fig. 2 is the structural representation of high-pressure electrostatic sampling apparatus of the present utility model;
Fig. 3 is the partial enlarged drawing at Fig. 2 " I " place;
Embodiment
As shown in Figure 1, the Moveable high-pressure electrostatic particle thing sampling apparatus of the present embodiment, comprise isokinetic sampling 1, cutter 2 and high-pressure electrostatic sampling apparatus 3 and PC 4, isokinetic sampling 1 such as to comprise at kinetic head 11 and the constant speed pipe 12, one end of constant speed pipe 12 is removably installed in Deng kinetic head 11, other one end of constant speed pipe 12 is removably mounted on the air inlet at cutter 2 top by " L " molded cannula, the air outlet of cutter 2 is communicated in the air inlet of high-pressure electrostatic sampling apparatus 3, constant speed pipe 12 is installed with pitot tube 5, the signal transmitting device of pitot tube 5 is connected with PC 4, Moveable high-pressure electrostatic particle thing sampling apparatus also comprises regulation device 6, regulation device 6 comprises flowmeter 61, ratio adjusting valve 62 and vacuum pump 63, the air outlet of high-pressure electrostatic sampling apparatus 3 is connected to vacuum pump 63 by ventilating duct, ventilating duct is provided with flowmeter 61 and ratio adjusting valve 62, flowmeter 61, ratio adjusting valve 62 is connected with PC 4 respectively with vacuum pump 63.
As shown in Figures 2 and 3, high-pressure electrostatic sampling apparatus 3 comprises casing 31 and laterally runs through the stopple coupon 32 of casing, one end of stopple coupon 32 is the air inlet be connected with cutter 2, one end is the air outlet be connected with regulation device 6 in addition, the bottom of stopple coupon 32 has sampling through hole 33, sampling pallet 34 is installed in casing 31, the spacing rotating disk 35 being fixed in sampling pallet 34 bottom and the motor 36 driving spacing rotating disk 35 to rotate, sampling pallet 34 is discoid, the upper surface of sampling pallet 34 is distributed with at least two standing grooves 342 for installing copper mesh film 341 about disc centre symmetry, preferably, the number of standing groove 342 is 6, a copper mesh film 341 is placed in each standing groove 342, copper mesh film 341 on standing groove 342 can rotate along with sampling pallet 34, rest on successively immediately below sampling through hole 33 and sample.
High-pressure electrostatic sampling apparatus 3 in the present embodiment also comprises high pressure generator (not shown), the electrode needle 352 be connected with high pressure generator (not shown) and brush 353, the afterbody of electrode needle 352 is fixed on the upper end face of casing 31 inwall, the sharp portion of electrode needle 352 passes perpendicularly through the upper tube wall of stopple coupon 32 and punctures to sampling through hole 33 place of stopple coupon 32, the bottom land of standing groove 342 passes until the below of copper mesh film 341 in the brush portion of brush 353, and it is relative with electrode needle 352, the afterbody of brush 353 is connected with push rod 37, push rod 37 is installed on the bottom surface of casing 31 inside by spring 39, push rod 37 is fixed with transposition plate 38, transposition plate 38 matches to make push rod 37 do vertical up-or-down movement with spacing rotating disk 35, spacing rotating disk 35 bottom surface is provided with at least two arc-shaped protrusions 351 about bottom center's symmetry, transposition plate 38 have the arc-shaped recess 381 corresponding with arc-shaped protrusions 351.
As shown in Figure 3, copper mesh film 341 is installed in standing groove 342 by fixation kit, fixation kit is three grades of up-small and down-big stepped boss 343, the first order boss face 3431 being positioned at topmost is provided with copper mesh film 341, second level boss face 3432 is positioned at the below of stopple coupon 32, second level boss face 3432 is provided with O-ring seal 3434, third level boss face 3433 is buckled in standing groove 342, the opening part of standing groove 342 has draw-in groove limit, back-moving spring 3435 is installed between third level boss face 3433 and draw-in groove limit, the bottom of stepped boss 343 is also provided with groove 3436, the shape of groove 3436 and the matching form of brush 353 close, the brush portion of brush 353 leans in groove 3436 through the bottom land of standing groove 342, and stepped boss 343 can be driven to move upward, the pretightning force that stepped boss 343 overcomes back-moving spring 3435 is moved towards electrode needle 352, until copper mesh film 341 contacts electrode needle 352, now PC 4 starts high pressure generator, electrode needle 352 and brush 353 form current return, particle is adsorbed on copper mesh film 341 under the effect of high-pressure electrostatic, after having sampled for the first time, HV generator stops exporting high-pressure electrostatic, now stepped boss 343 is at the moved downward of back-moving spring 3435, PC 4 actuating motor 36 simultaneously, motor 36 drives brush and push rod 37 to move downward by transposition plate 38 and spacing rotating disk 35, and drive sampling pallet to rotate when brush departs from sampling pallet, now stepped boss 343 reset and along with sampling pallet rotate, next copper mesh film 341 prepares sampling in place.
High pressure generator (not shown) in the present embodiment, motor 36 are connected with PC 4 respectively, cutter 2 is whirlwind cutter, vacuum pump 63 is sliding vane rotary pump, flowmeter 61 and ratio adjusting valve 62 can replace by service property (quality) flow controller, mass flow controller is connected with PC 4, bore Deng kinetic head 11 also can be changed according to real needs, and casing 31 has sampling window (not shown).
As shown in Figure 2, high-pressure electrostatic sampling apparatus in the present embodiment can manufacture use separately, wherein push rod 37 drives the brush mode that can be matched with arc-shaped recess by above-mentioned arc-shaped protrusions that moves up and down to realize, also can directly use servomotor or air cylinder driven, specifically drive in which way and can determine according to the actual requirements.
The using method of above-mentioned Moveable high-pressure electrostatic particle thing sampling apparatus is:
First, static pressure and the dynamic pressure of sampling apparatus extraneous air when transporter runs is recorded by pitot tube 5, the data recorded are transferred to PC 4 simultaneously, and flowmeter 61 records sampling apparatus internal gas pressure, so just, the draught head that sampling apparatus is inside and outside can be drawn, then PC 4 controls vacuum pump and extracts the inner a certain amount of air of sampling apparatus out to make sampling apparatus inside and outside pressure consistent, so just, the stability of sampling apparatus can be ensured, avoid the inconsistent machine vibration caused of pressure inside and outside sampling apparatus, and constant internal pressure can be kept, ensure the reliability of sampling repeatability and sampled data.
During sampling, after air-flow enters constant speed pipe 12, first air containing particle enters cutter 2, after the separation of cutter 2, air-flow containing particle to be sampled enters in the casing 31 of high-pressure electrostatic sampling apparatus, now PC 4 actuating motor 36, motor 36 drives spacing rotating disk 35 to rotate, the arc-shaped protrusions 351 of spacing rotating disk 35 enters the arc-shaped recess 381 in transposition plate 38, push rod 37 in transposition plate 38 moves upward under the action of the spring, thus push rod 37 promotes brush 353 moves towards electrode needle 352, when brush 353 is close to electrode needle 352, high pressure generator (not shown) starts and exports high-pressure electrostatic to brush and electrode needle, under high voltage electrostatic field, particle is adsorbed onto on copper mesh film 341, complete first time sampling, when motor drives arc-shaped protrusions to depart from arc-shaped recess, transposition plate 38 drives push rod 37 to move downward, the pretightning force that push rod 37 overcomes spring 39 makes brush 353 move downward, brush 353 departs from electrode needle 352, simultaneously copper mesh film 341 moves downward and departs from sampling through hole and rotate along with sampling pallet, next copper mesh film 341 is in place, proceed sampling, 6 copper mesh films 341 on sampling pallet constantly rotate under the promotion of motor 36, continuous sampling can be carried out.
More than describing is to explanation of the present utility model, and be not the restriction to utility model, the utility model limited range is see claim, and when without prejudice to spirit of the present utility model, the utility model can do any type of amendment.
Claims (10)
1. a Moveable high-pressure electrostatic particle thing sampling apparatus, comprise isokinetic sampling's head (1), cutter (2), high-pressure electrostatic sampling apparatus (3) and PC (4), described isokinetic sampling's head (1) such as to comprise at kinetic head (11) and the constant speed pipe (12), described one end of waiting kinetic head (11) to be removably installed in described constant speed pipe (12), other one end of described constant speed pipe (12) is removably mounted on by " L " molded cannula on the air inlet at described cutter (2) top, the air outlet of described cutter (2) is communicated in the air inlet of described high-pressure electrostatic sampling apparatus (3), it is characterized in that: described constant speed pipe (12) is installed with pitot tube (5), signal transmitting device on described pitot tube (5) is connected with described PC (4), described Moveable high-pressure electrostatic particle thing sampling apparatus also comprises regulation device (6), described regulation device (6) comprises flowmeter (61), ratio adjusting valve (62) and vacuum pump (63), the air outlet of described high-pressure electrostatic sampling apparatus (3) is connected to described vacuum pump (63) by ventilating duct, described ventilating duct is provided with described flowmeter (61) and ratio adjusting valve (62), described flowmeter (61), ratio adjusting valve (62) is connected with described PC (4) respectively with vacuum pump (63).
2. Moveable high-pressure electrostatic particle thing sampling apparatus as claimed in claim 1, it is characterized in that: described high-pressure electrostatic sampling apparatus (3) comprises casing (31) and laterally runs through the stopple coupon (32) of described casing (31), one end of described stopple coupon (32) is the air inlet be connected with described cutter (2), one end is the air outlet be connected with described regulation device (6) in addition, the bottom of described stopple coupon (32) has sampling through hole (33), sampling pallet (34) is installed in described casing (31), the spacing rotating disk (35) being fixed in described sampling pallet (34) bottom and the motor (36) driving spacing rotating disk (35) to rotate, described sampling pallet (34) is for discoid, the upper surface of described sampling pallet (34) is distributed with at least two standing grooves (342) for installing copper mesh film (341) about disc centre symmetry, wherein at least one standing groove (342) is positioned at immediately below described sampling through hole (33).
3. Moveable high-pressure electrostatic particle thing sampling apparatus as claimed in claim 2, it is characterized in that: described copper mesh film (341) is installed in described standing groove (342) by fixation kit, described fixation kit is three grades of up-small and down-big stepped boss (343), the first order boss face (3431) being positioned at topmost is provided with copper mesh film (341), second level boss face (3432) is positioned at the below of described stopple coupon (32), described second level boss face (3432) is provided with O-ring seal (3434), third level boss face (3433) is buckled in described standing groove (342), the opening part of described standing groove (342) has draw-in groove limit, between described third level boss face (3433) and described draw-in groove limit, back-moving spring (3435) is installed, the bottom of described stepped boss (343) is also provided with groove (3436).
4. Moveable high-pressure electrostatic particle thing sampling apparatus as claimed in claim 3, it is characterized in that: described high-pressure electrostatic sampling apparatus (3) comprises high pressure generator, the electrode needle (352) be connected with described high pressure generator and brush (353), the afterbody of described electrode needle (352) is fixed on the inner upper end face of described casing (31), the sharp portion of described electrode needle (352) passes perpendicularly through the upper tube wall of described stopple coupon (32) and punctures to sampling through hole (33) place of described stopple coupon (32), the brush portion of described brush (353) passes the bottom land of described standing groove (342) and can lean in described groove (3436), the afterbody of described brush (353) is connected with push rod (37), described push rod (37) is installed on the inner bottom surface of described casing (31) by spring (39).
5. Moveable high-pressure electrostatic particle thing sampling apparatus as claimed in claim 4, it is characterized in that: described push rod (37) is fixed with transposition plate (38), described transposition plate (38) matches to make push rod (37) do vertical up-or-down movement with described spacing rotating disk (35), described spacing rotating disk (35) bottom surface is provided with at least two arc-shaped protrusions about its bottom center's symmetry (351), described transposition plate (38) has the arc-shaped recess (381) corresponding with described arc-shaped protrusions (351).
6. Moveable high-pressure electrostatic particle thing sampling apparatus as claimed in claim 5, is characterized in that: described high pressure generator, motor (36) are connected with described PC (4) respectively.
7. Moveable high-pressure electrostatic particle thing sampling apparatus as claimed in claim 6, is characterized in that: described cutter (2) for whirlwind cutter (2), described vacuum pump (63) be sliding vane rotary pump.
8. Moveable high-pressure electrostatic particle thing sampling apparatus as claimed in claim 7, it is characterized in that: described flowmeter (61) and ratio adjusting valve (62) can replace by service property (quality) flow controller, described mass flow controller is connected with described PC (4), and described casing (31) has sampling window.
9. a high-pressure electrostatic sampling apparatus, for the Moveable high-pressure electrostatic particle thing sampling apparatus as described in claim 1-8 any one, comprise casing (31) and the horizontal stopple coupon (32) running through described casing (31), one end of described stopple coupon (32) is the air inlet be connected with described cutter (2), one end is the air outlet be connected with described regulation device (6) in addition, the bottom of described stopple coupon (32) has sampling through hole (33), it is characterized in that: sampling pallet (34) is installed in described casing (31), the spacing rotating disk (35) being fixed in described sampling pallet (34) bottom and the motor (36) driving spacing rotating disk (35) to rotate, described sampling pallet (34) is for discoid, the upper surface of described sampling pallet (34) is distributed with at least two standing grooves (342) for installing copper mesh film (341) about disc centre symmetry, wherein at least one standing groove (342) is positioned at immediately below described sampling through hole (33), described copper mesh film (341) is installed in described standing groove (342) by fixation kit, described fixation kit is three grades of up-small and down-big stepped boss (343), the first order boss face (3431) being positioned at topmost is provided with copper mesh film (341), second level boss face (3432) is positioned at the below of described stopple coupon (32), described second level boss face (3432) is provided with O-ring seal (3434), third level boss face (3433) is buckled in described standing groove (342), the opening part of described standing groove (342) has draw-in groove limit, between described third level boss face (3433) and described draw-in groove limit, back-moving spring (3435) is installed, the bottom of described stepped boss (343) is also provided with groove (3436).
10. high-pressure electrostatic sampling apparatus as claimed in claim 9, it is characterized in that: described high-pressure electrostatic sampling apparatus (3) also comprises high pressure generator, the electrode needle (352) be connected with described high pressure generator and brush (353), the afterbody of described electrode needle (352) is fixed on the inner upper end face of described casing (31), the sharp portion of described electrode needle (352) passes perpendicularly through the upper tube wall of described stopple coupon (32) and punctures to sampling through hole (33) place of described stopple coupon (32), the brush portion of described brush (353) passes the bottom land of described standing groove (342) and can lean in described groove (3436), the afterbody of described brush (353) is connected with push rod (37), described push rod (37) is by the bottom surface of spring fitting in described casing (31) inside, copper mesh film (341) on described stepped boss (343) pushes up to described electrode needle (352) by described brush (353) under the effect of push rod (37), described high pressure generator, motor (36) is connected with described PC (4) respectively.
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| CN201420429126.6U CN204330428U (en) | 2014-07-31 | 2014-07-31 | Moveable high-pressure electrostatic particle thing sampling apparatus and high-pressure electrostatic sampling apparatus |
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| CN201420429126.6U CN204330428U (en) | 2014-07-31 | 2014-07-31 | Moveable high-pressure electrostatic particle thing sampling apparatus and high-pressure electrostatic sampling apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469407A (en) * | 2018-03-16 | 2018-08-31 | 中国石油大学(华东) | A kind of device and method of detection clean surface degree |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469407A (en) * | 2018-03-16 | 2018-08-31 | 中国石油大学(华东) | A kind of device and method of detection clean surface degree |
| CN108469407B (en) * | 2018-03-16 | 2021-01-12 | 中国石油大学(华东) | Device and method for detecting surface cleanliness |
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