CN205246916U - A retro -reflection board for measuring motor vehicle exhaust - Google Patents

Abstract

The utility model discloses a retro -reflection board for measuring motor vehicle exhaust tiles on the road surface, wherein, the reflecting plate mainly comprises basement and the protection muscle that is located basement top, the protection muscle will formation multistage reflecting region is kept apart to the substrate surface, the reflecting region has coated mid ir retro -reflection material. The utility model provides an among traditional retro -reflection measurement mode to the machining precision of instrument expect much, the dear problem of cost to can be applied to the middle -infrared band.

Description

A kind of for measuring the retroreflecting plate of motor-vehicle tail-gas

Technical field

The utility model belongs to telemetering motor vehicle tail field, particularly a kind of for measuring motor-driven vehicleThe mid-infrared light retroreflecting plate of gas.

Background technology

Along with the increase of vehicle guaranteeding organic quantity, and the policy issue of motor vehicle inspection in 6 years, make to adoptThe motor vehicle that remote sensing technique travels to setting out on a journey carries out detecting in real time the particularly necessity that seems. And newly issue for 2015" the atmosphere method " of cloth is clearly defined in the situation that does not affect motor-driven vehicle going, can carry out motor vehicleReal-time telemetry. Traditional telemetering motor vehicle tail instrument once can only carry out horizontal detection to a car, ifThere is two cars simultaneously or overlapping during by distance apparatus, cannot judge it is the discharge of which car, be considered asInvalid data. And traditional telemetering motor vehicle tail instrument is all to adopt minute surface radiation pattern emission measurementLight, in the time adopting the fixing remote-measuring equipment of gantry frame type, the mode of ground mounting plane speculum is not substantiallyDesirable.

At present, adopted the former of retroreflecting for the measurement of the main pollutant consistence in motor-vehicle tail-gasReason, traditional retroreflecting has two kinds of modes: the first is optics corner reflector, has good recurrenceReflecting properties, but requirement on machining accuracy is high, cost costliness, and angle of reflection is 0 degree substantially, incidentIts application in various fields also, near 0 degree, has been limited in angle. The second is glass microballoon retroreflectingMaterial, is used for greatly pavement strip band, and the life-span generally only has about 3 months, and wavelength is only confined toWithin the scope of visible ray. The one that the patent that for example patent publication No. is CN104461169A provides is redOutside line returns, but its reflectance coating wavelength also can only arrive 940nm.

Therefore, how to design that a kind of certainty of measurement is high, cost is low and can be used in the long distance of middle-infrared bandThe retroreflecting plate detecting just becomes problem demanding prompt solution.

Utility model content

The purpose of this utility model is for deficiency of the prior art, provides a kind of for measuring machine motor-carThe mid-infrared light retroreflecting plate of tail gas, to solve adding instrument in traditional retroreflecting metering systemWork required precision is high, cost is expensive, detect the problem that wave-length coverage is comparatively limited to.

Realizing the technical solution of the utility model is, a kind of for measuring the retroreflecting plate of motor-vehicle tail-gas,Be laid in road top, wherein, described reflecting plate is mainly by substrate and be positioned at the protection muscle group of substrate topBecome, described substrate surface isolation is formed multistage echo area by described protection muscle, in being covered with on described echo areaInfrared light retroreflecting material.

Further, described protection muscle is elongated and higher than described substrate surface.

Further, described protection muscle thickness is not less than 5mm, and described substrate thickness is not less than 2mm.

Preferably, the substrate both sides at two of described protection muscle long ends and this long end place are chamfering setting.

Further, described substrate and protection muscle are one-body molded, and described substrate and protection muscle adopt metal materialMatter is made.

Alternatively, described retroreflecting material is that employing is multiple to the opaque small bead of visible rayThe retroreflecting film of making, described retroreflecting film sticks on described echo area.

Alternatively, described retroreflecting material is be coated with reflectance coating opaque multiple small to visible rayBead, and be coated on this echo area.

Further, described bead is made up of barium fluoride and titanium fluoride.

Further, described glass steel ball is creamy white, and its diameter is 50 to 200 microns.

Disclosed in the utility model a kind of for measuring the retroreflecting plate of motor-vehicle tail-gas, not only can doThe purposes of tradition, also can be used for the retroreflecting of 3-6 micron middle-infrared band, and effectively incidence angle exceedes 45 degree, without adjustment, have solved some and have done by middle-infrared band the problem that long distance detects in use.

Brief description of the drawings

Fig. 1 is for measuring the retroreflecting of motor-vehicle tail-gas in a preferred embodiment of the present utility modelThe structural representation of plate.

Detailed description of the invention

Below in conjunction with accompanying drawing, the technical scheme in the utility model embodiment is carried out clearly and completelyDescribe, but not as to restriction of the present utility model.

Shown in Figure 1, it is a kind of for measuring returning of motor-vehicle tail-gas that the utility model embodiment providesReturn reflecting plate, be laid in road top, its mainly with in infrared 3-6 micron waveband carry out measuring machine motor-carMain pollutant consistence in tail gas, wherein, described reflecting plate is mainly by substrate 1 and be positioned in substrate 1The protection muscle 3 of side forms, and described substrate 1 surface isolation is formed multistage echo area 2 by described protection muscle 3,On described echo area 2, be covered with the retroreflecting material of mid-infrared light. The wavelength of middle-infrared band is 3-5Micron, belonging to is thermal infrared remote sensing.

Specifically, described protection muscle 3 is elongated and higher than described substrate 1 surface, makes to protect muscle3 have certain difference in height with echo area 2 place planes, and like this, pressure wheel is being crossed described reflecting plateTime, reflecting material can not be rolled, to extend the service life of reflecting material; Described substrate 1 HeThe one-body molded employing metal material of protection muscle 3 makes and preferably all adopts stainless steel to make, certainly notBeing limited to described stainless steel, is that retroreflecting plate must have enough to the requirement of described retroreflecting sheet material matterIntensity, can stand rolling for a long time of wheel. Wherein, interval phase between two adjacent protection muscle 3Deng, make echo area 2 areas of formation basic identical.

Principle of the present utility model is, in the time that light source is irradiated to the reflective tape on road surface from portal frame top, byIn the effect of retroreflecting, reflection ray can be got back to light source around substantially, wide to realize whole road surfaceThe measurement of degree.

By described reflection board structure of the present utility model, reverberation substantially can be former along incident direction of lightRoad is returned, and retroreflecting angle is less than 2 °, can reflection wavelength be the mid-infrared light of 3-6 micron, and reflex reflectionCoefficient is not less than 40%,

As one of the utility model preferred embodiment, two long ends of described protection muscle 3 and this is longSubstrate 1 both sides at end place are chamfering setting, or it is excessive to be level and smooth fillet, like this, and when vehicle is pressedWhen upper this reflecting plate, can get on stably, while going out this reflecting plate, also can go down stably, make vehicleBy time without the sense of obviously jolting.

Further, in the present embodiment, substrate 1 thickness of described reflecting plate is 2-3mm, protection muscle3 height 6-8mm are for well, and such thickness one side can ensure the intensity of reflecting plate itself, the opposing partyFace has also ensured that reflecting plate is unlikely to excessive height and makes vehicle by the generation sense of jolting.

On to the selection of retroreflecting material, the utility model has two kinds of modes, and mode one adoptsThe retroreflecting film of being made by special reflecting material, described retroreflecting film by sticking double faced adhesive tape describedOn echo area 2, wherein this special reflecting material is multiple small beades, and this material is milky,Opaque to visible ray. Its advantage, for operation, replacing reflectance coating are simple, fast, but need to first will reflectMaterial is made retroreflecting film, is applicable to batch production.

Mode two, applies one deck glue in echo area 2, and glue thickness is the 40%-45% of bead diameter,Too thin bead easily comes off; Too thick glue can wrap bead, causes retro-reflectivity to reduce. AgainThe bead with reflecting layer is directly transferred on 2 territories, echo area. This mode is compared with mode one complicated operation,Being applicable to laboratory experiment uses.

Wherein, in aforesaid way one and mode two, described glass steel ball is made up of barium fluoride and titanium fluoride,Described Glass Bead Diameter size is 50 to 200 microns.

Retroreflecting plate described in the utility model manufacture is simple, and cost is low, and retroreflecting angle is little, anti-Penetrate efficiency high, can be used in the retroreflecting of 3-6 micron middle-infrared band, it has solved on ground and has installedPlane mirror carrys out a difficult problem for measured automobiles tail gas, has good application prospect.

Although below in conjunction with the preferred embodiments the utility model is described the technology people of this areaMember should be appreciated that, method and system described in the utility model is not limited to described in detailed description of the inventionEmbodiment, in the case of not deviating from the utility model spirit and scope that limited by appended claims,Can the utility model be made various amendments, increase and be replaced.

Claims (8)

1. one kind for measuring the retroreflecting plate of motor-vehicle tail-gas; be laid on road surface; it is characterized in that; described reflecting plate is mainly made up of substrate and the protection muscle that is positioned at substrate top; described substrate surface isolation is formed multistage echo area by described protection muscle, is covered with mid-infrared light retroreflecting material on described echo area.

2. retroreflecting plate as claimed in claim 1, is characterized in that, described protection muscle is elongated and higher than described substrate surface.

3. retroreflecting plate as claimed in claim 1, is characterized in that, described protection muscle thickness is not less than 5mm, and described substrate thickness is not less than 2mm.

4. retroreflecting plate as claimed in claim 2, is characterized in that, two long ends of described protection muscle and the substrate both sides at this long end place are chamfering setting.

5. retroreflecting plate as claimed in claim 1, is characterized in that, described substrate and protection muscle are one-body molded, and described substrate and protection muscle adopt metal material to make.

6. retroreflecting plate as claimed in claim 1, is characterized in that, described retroreflecting material is to adopt multiple retroreflecting films that the opaque small bead of visible ray is made, and described retroreflecting film sticks on described echo area.

7. retroreflecting plate as claimed in claim 1, is characterized in that, described retroreflecting material be coated with reflectance coating to the opaque multiple tiny glass beads of visible ray, and be coated on this echo area.

8. the retroreflecting plate as described in claim 6 or 7, is characterized in that, the diameter of described bead is 50 to 200 microns.