CN102590150A - Indoor hyperspectral bidirectional reflectance distribution function (BRDF) determining system - Google Patents

Indoor hyperspectral bidirectional reflectance distribution function (BRDF) determining system Download PDF

Info

Publication number
CN102590150A
CN102590150A CN2012100522093A CN201210052209A CN102590150A CN 102590150 A CN102590150 A CN 102590150A CN 2012100522093 A CN2012100522093 A CN 2012100522093A CN 201210052209 A CN201210052209 A CN 201210052209A CN 102590150 A CN102590150 A CN 102590150A
Authority
CN
China
Prior art keywords
quartz glass
light source
spectrum
district
translation
Prior art date
Application number
CN2012100522093A
Other languages
Chinese (zh)
Other versions
CN102590150B (en
Inventor
张垚
黄敬峰
魏晨
王秀珍
Original Assignee
浙江大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江大学 filed Critical 浙江大学
Priority to CN201210052209.3A priority Critical patent/CN102590150B/en
Publication of CN102590150A publication Critical patent/CN102590150A/en
Application granted granted Critical
Publication of CN102590150B publication Critical patent/CN102590150B/en

Links

Abstract

The invention relates to an indoor hyperspectral bidirectional reflectance distribution function (BRDF) determining system, which comprises a light source area, a hyperspectral auxiliary brightness gauge adjusting area, a carrier stage area and a base which is horizontally placed; the light source area comprises a light source, a light source space adjusting valve, a light source supporting rod and a semi-arc slide rail, wherein the light source is hinged with the circular center of the semi-arc slide rail which is fixed on the side surface of the base through the light source supporting rod; the hyperspectral auxiliary brightness gauge adjusting area comprises an auxiliary brightness gauge, a space adjusting device, a quarter-arc slide rail and a hollow rotary disc, wherein the carrier stage area is arranged on the center of the base, and the hollow rotary disc is fixed on the center of the base; an optical axis of the light source always points to the center of the hollow rotary disc; and both the light source and the auxiliary brightness gauge are powered on. The indoor hyperspectral BRDF determining system has beneficial effects that: shade can be eliminated, the measuring precision can be improved, and the flexibility of the measuring range can be improved; and the rotation of the carrier stage can introduce the azimuth angle characteristic of the BRDF light source, so the completeness of the BRDF determination can be enhanced.

Description

Indoor high spectrum BRDF measures system

Technical field

The present invention relates to a kind of indoor high spectrum BRDF and measure system, belong to the physical apparatus part.

Background technology

Learn in the application on spectrum ground, spectral characteristic of ground is the basis that terrestrial object information directly extracts.But at the most ground object target performance characteristic of occurring in nature is non-Lambertian source; Space geometry position and their wavelength of the spectral signature of target atural object and incident, catoptrical light are relevant; The anisotropy of this target atural object can be passed through bidirectional reflectance distribution function (Bidirectional Reflectance Distribution Function; BRDF) accurate description; Be because BRDF utilizes the ratio of the irradiation brightness value on the incident direction that reflecting brightness value and incident orientation angle and zenith angle and wavelength on the reflection direction that light wavelength is represented in incident orientation angle and zenith angle, reflection position angle and zenith angle, the latus rectum represent can describe this anisotropy of object exactly, so the anisotropy of target atural object also is one of emphasis of studying of spectral characteristic of ground.

The high spectrum observation of BRDF is significant to spectrum directivity, multi-angle remote sensing, remote sensing calibration and the remote sensing quantification of goal in research atural object.Its ground measure comprise observation outdoor, indoor BRDF, outdoor mensuration mainly be with the sunshine incident light source and indoor be main incident light source with the manual work, measure the reflecting brightness of target atural object all angles on the hemisphere direction.Like number of patent application 200610096153.6,200610096154.0,200420062521.1,20110209229.2 all is the system that BRDF measures.But there is following weak point in these BRDF mensuration systems: the 1. single light source that all uses of the light source of these systems; Be in the hemisphere center that radius is R at the mensuration object; Shade at hemisphere atural object BRDF detection process sensor is unavoidable on some specific angle direction; And sensor is lower in the reflection good fortune brightness of high zenith angle atural object BRDF detection process observation, and single light source can cause than large deviation.2. the hemisphere radius R of measuring ground object target BRDF is fixing; The sensor of its spectrum observation field angle can only be through changing the field angle camera lens; But the field angle camera lens is limited, have only usually 25 °, 15 °, 8 °, 5 °, 3 ° etc. discontinuous, suitable field angle is selected in influence.3. the incident angle of light source is the part of position angle and complete zenith angle; Outdoor is the light source solid angle that can only measure track of sun with the sun; And indoor artificial light source can only be adjusted the zenith angle of incident light source, can not describe the integrality of the characteristic of target atural object BRDF like this.Therefore the target atural object BRDF characteristic that these shortcomings of traditional B RDF mensuration system can not be accurately complete.

Summary of the invention

In order to solve the incomplete problem of characteristic that shade that single light source that present BRDF mensuration system uses produces causes measuring accuracy to reduce and BRDF measures the incident light source of system when the observation position angle and field angle have the target atural object BRDF that limitation causes; Proposed a kind of elimination shade, improved measuring accuracy, and the position angle and the circumscribed indoor high spectrum BRDF of field angle that improve incident light source measure system.

Indoor high spectrum BRDF of the present invention measures system, it is characterized in that: described system comprises the base of light source region, high spectrum auxilliary bright meter regulatory region, objective table district and horizontal positioned; Described light source region comprises light source, light source roll adjustment valve, light source pole and semi arch slide rail, and described light source is hinged with the center of circle of the semi arch slide rail that is fixed on the base side through described light source pole; The auxilliary bright meter regulatory region of described high spectrum comprises auxilliary bright meter, range regulator, 1/4 circular arc slide rail and hollow rotary disk, and described auxilliary bright meter is connected with described hollow rotary disk through 1/4 circular arc slide rail; Described objective table district is placed on described center, and the center of gravity in described objective table district and described base center of gravity on same vertical line, described center is fixed described hollow rotary disk; Described light source optical axis points to the center of circle of hollow rotary disk all the time; Described light source and the described auxilliary equal energized of bright meter;

Described light source comprises the lamp socket that halogen lamp is set, the collimation lens barrel that is connected with lamp socket; Lamp socket and collimation lens barrel junction have light hole; Be provided with the aperture adjustable diaphragm in the collimation lens barrel; Collimation lens barrel light-emitting window place is provided with straight mirror, and adjustable diaphragm position, said aperture overlaps with the focal plane of collimating mirror, sentences parallel light emergence from collimation lens barrel light-emitting window behind aperture adjustable diaphragm in the emergent light process collimation lens barrel of said halogen lamp and the collimating mirror;

Described light source pole comprises cross support arm and longitudinal girt, and described cross support arm one end is connected with said light source is vertical, and the other end is connected with described longitudinal girt is vertical; The hinged unit in the center of circle of the other end of described longitudinal girt and described semi arch slide rail quantizes for 5 ° to rotate, and the optical axis of assurance light source passes the center of hollow disk, and the lock of forming through described screw at described semi arch slide rail place of embracing is fixed;

Described range regulator comprises fibre-optical probe sleeve and locating sleeve; Have a millimeter unit scale on the described light source probe sleeve; Can adjust described probe of assisting bright meter to the distance between the observed object thing through described locating sleeve to the fixing of fibre-optical probe sleeve diverse location, concrete distance reads through the scale on the sleeve; The sound end of described auxilliary bright meter is equipped with the camera lens screw thread of the high spectrometer of standard, adjusts best field angle scope through the replacing and the probe of camera lens apart from the distance of object;

Described hollow rotary disk is made up of the rotating outer inner disc that coils and be fixed on the base of ring-type, is carved with 360 calibrated dials of standard on the described inner disc, quantizes rotational angle through the pointer on the outer dish; The radius of described outer dish is identical with 1/4 circular arc slide rail radius, guarantee auxilliary bright meter the slip of 1/4 circular arc slide rail with outside coil rotation the time form hemispheric inspection surface;

Described base is built into by aluminium section bar has centrosymmetric double-deck well type framework, and it is dull and stereotyped that aluminium section bar is laid on described base upper strata.

Described auxilliary bright meter adopt optical fiber light-guiding, detection spectral range 350~2500nm, have identical flat filed concave grating beam split, the detector that linear matrix is arranged is surveyed.

Be evenly equipped with on the described 1/4 circular arc slide rail with 5 ° be the scale at interval, the zenith angle of surveying through the auxilliary bright meter of the slidable adjustment of locating sleeve on 1/4 circular arc slide rail of the fixing bright meter of spoke.

The plane of described hollow rotary disk is equal with the loading surface in described objective table district.

Described objective table comprises object carrying area, up-down district and translation district and has the cylindric spinner of 360 calibrated dials of standard; Described object carrying area is made up of quartz glass I, quartz glass II, quartz glass support and worktable, realizes putting the quantification of spectrum observation thing and probe field angle number; Described up-down district is made up of scissor lift platform, the direct-connected support that connects, and realizes quantizing on the observation thing vertical direction; Described translation district is made up of left and right sides translation stage, front and back translation stage, in the spectrum observation process, carries out the quantitative translation of level, realizes that in conjunction with described object carrying area observation thing horizontal direction quantizes;

Described object carrying area, the connected mode of going up and down between district, the translation area are following: all plane quartz glass I, quartz glass II, quartz glass support, worktable, scissor lift platform, left and right sides translation stage and above the translation stage of front and back and the following flat surface that all requires; And these parts planar horizontal are placed, and its center of gravity is on a line of vertical and horizontal face; Quartz glass I, quartz glass II level insert two of the quartz glass support up and down in the quartz glass groove, and quartz glass I is last, and quartz glass II is down; Direct-connectedly afterwards connect four cantilever tip of support and object carrying area four jiaos of vertical connections of bottom, four jiaos connect four vertical linking to each other of support bottom of support with direct-connected above the translation stage of the said left and right sides; End face links to each other with the worktable bottom surface is parallel on the scissor lift platform, with parallel above the translation stage of the left and right sides; With parallel connection above the translation stage of front and back, but translation stage is each other vertical with front and back translation stage axis in the left and right sides below the translation stage of the left and right sides; Described spinner is installed in the upper surface of the said left and right sides translation stage in described translation district, separates with the fibre-optical probe rotation in the rotary course of described spinner.

Described structure part object carrying area comprises following:

(1) quartz glass I: square thickness is homogeneous very, and perspectivity is good, does not require the quartz glass of other higher optical properties; Be equipped with the standard grid at quartz glass I upper surface, outstanding center; From overlooking on the direction of objective table district, utilize the standard grid of quartz glass I upper surface the observation thing to be carried out the quantification of spectrum observation face through quartz glass II, and definite spectrum sample point position;

(2) quartz glass II: square thickness is homogeneous very, can not be lower than 99% quartz glass in 350nm-2500nm band of light transmissivity; The principal plane of quartz glass II and stationary table spectrum observation thing, the observation thing surface that also can realize flattening film like through scissor lift platform vertical moving worktable;

(3) quartz glass support: be the rectangular quartz glass support of housing rectangle and inside casing, wash the quartz glass of two horizontal directions at inwall deeply and inlay pickup groove that the objective table district faces long near-end and washes, be convenient to quartz glass I during observation spectrum and take out; Near-end respectively has two lock-screws up and down, fixedly quartz glass I and quartz glass II when definite spectrum sample point and observation spectrum;

(4) worktable: be the platform that puts the spectrum observation thing, be the square direct-connected backing thickness homogeneous that connects, level is connected the lifting table top; The surface of worktable be by one deck to the reflection of light rate less than 0.5% film wrapped; Facing the height pointer that vertical direction is installed below the worktable near-end left end, connecing the pressing degree that vertical height that the support that has scale in the support quantizes the observation thing and film are observed thing with direct-connected.

Described structure part goes up and down to distinguish in going up and down to distinguish, and comprises following:

1) scissor lift platform: be connected vertical moving observation thing with worktable;

2) the direct-connected support that connects: be object carrying area and four vertical supports that are connected in translation district,, can quantize the height of vertical direction wherein at a scale that is marked with standard unit facing the left side.

Lifting table district in the described structure part translation district comprises following:

1. left and right sides translation stage: material is the load-carrying single shaft translation stage that stainless steel can be faced left and right sides translation.Face at translation stage and lean to one side to write down translation distance, quantize observing about the thing surface level in conjunction with object carrying area.

2. translation stage before and after: material is the load-carrying single shaft translation stage of translation before and after stainless steel can be faced.Face at translation stage and lean to one side to write down translation distance, observation thing surface level front and back are quantized in conjunction with object carrying area.

Described indoor high spectrum BRDF measures system except that the glass in the camera lens of light source region and objective table district, and described each region surface all needs surface oxidation to turn black.

The invention has the beneficial effects as follows: significantly increased the spoke brightness conditions of indoor high spectrum BRDF, eliminated shade and improved measurement result, improved measuring accuracy; The range regulator of spectral radiance has increased the elasticity of indoor high spectrum BRDF measurement range; The rotatory that increases objective table can be introduced the position angle characteristic of BRDF light source, increases the integrality that BRDF measures.

Description of drawings

Fig. 1 is one-piece construction figure of the present invention

Fig. 2 is a light source region front elevation of the present invention

Fig. 3 is a described light source region side view of the present invention

Fig. 4 is a hollow disk synoptic diagram of the present invention

Fig. 5 is a quadrant arc synoptic diagram of the present invention

Fig. 6 is the structural representation in objective table of the present invention district

Fig. 7 is the front elevation of base of the present invention

Fig. 8 is that the side of base of the present invention is attempted

Embodiment

Further specify the present invention below in conjunction with accompanying drawing

With reference to accompanying drawing:

Indoor high spectrum BRDF of the present invention measures system, and described system comprises the base 4 of the auxilliary bright meter regulatory region of two cover light source region 1, high spectrum 2, objective table district 3 and horizontal positioned; Described light source region 1 comprises light source 11, light source roll adjustment valve 12, light source pole 13 and semi arch slide rail 14, and described light source 11 is hinged with the center of circle of the semi arch slide rail 14 that is fixed on base 4 sides through described light source pole 13; The auxilliary bright meter regulatory region 2 of described high spectrum comprises auxilliary bright meter 21, range regulator 22,1/4 circular arc slide rail 23 and hollow rotary disk 24, and described auxilliary bright meter 21 is connected with described hollow rotary disk 24 through 1/4 circular arc slide rail 23; Described objective table district 3 is placed on described base 4 centers, and the center of gravity in described objective table district 3 and described base 4 centers of gravity on same vertical line, the described hollow rotary disk 14 of described base 4 center fixation; Described light source 11 optical axises point to the center of circle of hollow rotary disk 14 all the time; Described light source 11 and described auxilliary bright meter 21 equal energized;

Described light source 11 comprises the lamp socket that halogen lamp is set, the collimation lens barrel that is connected with lamp socket; Lamp socket and collimation lens barrel junction have light hole; Be provided with the aperture adjustable diaphragm in the collimation lens barrel; Collimation lens barrel light-emitting window place is provided with straight mirror, and adjustable diaphragm position, said aperture overlaps with the focal plane of collimating mirror, sentences parallel light emergence from collimation lens barrel light-emitting window behind aperture adjustable diaphragm in the emergent light process collimation lens barrel of said halogen lamp and the collimating mirror;

Described light source pole 13 comprises cross support arm 131 and longitudinal girt 132, described cross support arm 131 1 ends and said 11 vertical connections of light source, the other end and described 132 vertical connections of longitudinal girt; The hinged unit in the center of circle of the other end of described longitudinal girt 132 and described semi arch slide rail 14 quantizes for 5 ° to rotate; Guarantee that the optical axis of light source 11 passes the center of hollow disk 24, and armful lock of forming through described screw at described semi arch slide rail 14 places is fixing;

Described range regulator 22 comprises fibre-optical probe sleeve 221 and locating sleeve 222; Have a millimeter unit scale on the described light source probe sleeve 221; The fixing probe that can adjust described auxilliary bright meter 21 through 222 pairs of fibre-optical probe sleeve 221 diverse locations of described locating sleeve arrives the distance between the observed object thing, and concrete distance reads through the scale on the sleeve 221; The sound end of described auxilliary bright meter 21 is equipped with the camera lens screw thread of the high spectrometer of standard, adjusts best field angle scope through the replacing and the probe of camera lens apart from the distance of object;

Described hollow rotary disk 24 is made up of with the inner disc 242 that is fixed on the base 4 the rotating outer dish 241 of ring-type, is carved with 360 calibrated dials of standard on the described inner disc 242, quantizes rotational angle through the pointer on the outer dish 241; The radius of described outer dish 241 is identical with 1/4 circular arc slide rail, 23 radiuses, guarantee auxilliary bright meter 21 the slip of 1/4 circular arc slide rail 23 with outside form hemispheric inspection surface when coiling 241 rotation;

Described base 4 is built into by aluminium section bar has centrosymmetric double-deck well type framework, and it is dull and stereotyped that aluminium section bar is laid on described base 4 upper stratas.

Described auxilliary bright meter 21 adopt optical fiber light-guidings, detection spectral range 350~2500nm, have identical flat filed concave grating beam split, the detector that linear matrix is arranged is surveyed.

Be evenly equipped with on the described 1/4 circular arc slide rail 23 with 5 ° be the scale at interval, the zenith angle of surveying through the auxilliary bright meter 21 of the slidable adjustment of locating sleeve 222 on 1/4 circular arc of the fixing bright meter 21 of spoke.

The plane of described hollow rotary disk 24 is equal with the loading surface in described objective table district 3.

Described objective table district 3 comprises object carrying area 31, up-down district 32 and translation district 33 and has the cylindric spinner 34 of 360 calibrated dials of standard; Described object carrying area 31 is made up of quartz glass I311, quartz glass II312, quartz glass support 313 and worktable 314, realizes putting the quantification of spectrum observation thing and probe field angle number; Described up-down district 32 is made up of scissor lift platform 321, the direct-connected support 322 that connects, and realizes quantizing on the observation thing vertical direction; Described translation district 33 forms 332 by left and right sides translation stage 331, front and back translation stage, in the spectrum observation process, carries out the quantitative translation of level, realizes that in conjunction with described object carrying area 31 observation thing horizontal direction quantizes;

Described object carrying area 31, the connected mode of going up and down between district 32,33 zones, translation district are following: all plane quartz glass I311, quartz glass II312, quartz glass support 313, worktable 314, scissor lift platform 321, left and right sides translation stage 331 and above the front and back translation stage 332 and the following flat surfaces that all require; And these parts planar horizontal are placed, and its center of gravity is on a line of vertical and horizontal face; Quartz glass I311, quartz glass II312 level insert two of quartz glass support 313 up and down in the quartz glass groove, and quartz glass I311 is last, and quartz glass II312 is down; Direct-connectedly afterwards connect 322 4 cantilever tip of support and four jiaos of vertical connections of object carrying area 31 bottoms, four jiaos connect 322 4 vertical linking to each other of support bottom of support with direct-connected above the said left and right sides translation stage 331; End face and parallel linking to each other of worktable 314 bottom surfaces on the scissor lift platform 321 are with parallel above the left and right sides translation stage 331; With parallel connection above the front and back translation stage 332, but translation stage 331 is each other vertical with front and back translation stage 332 axis in the left and right sides below the left and right sides translation stage 331; Described spinner 34 is installed in the upper surface of the said left and right sides translation stage 331 in described translation district 33, separates with the fibre-optical probe rotation in the rotary course of described spinner 34.

Described structure part object carrying area comprises following:

(1) quartz glass I311: square thickness is homogeneous very, and perspectivity is good, does not require the quartz glass of other higher optical properties; Be equipped with the standard grid at quartz glass I311 upper surface, outstanding center; From overlooking on the direction of objective table district 3, utilize the standard grid of quartz glass I upper surface the observation thing to be carried out the quantification of spectrum observation face through quartz glass II312, and definite spectrum sample point position;

(2) quartz glass II312: square thickness is homogeneous very, can not be lower than 99% quartz glass in 350nm-2500nm band of light transmissivity; The principal plane of quartz glass II312 and worktable 314 fixed spectrum observation thing also can realize that the observation thing of pressing film like is surperficial through scissor lift platform 321 vertical moving worktable 314;

(3) the quartz glass support 313: be the rectangular quartz glass support of housing rectangle and inside casing; Wash the quartz glass of two horizontal directions at inwall deeply and inlay pickup groove; Objective table district 3 faces long near-end and washes, and is convenient to quartz glass I311 during observation spectrum and takes out; Near-end respectively has two lock-screws up and down, fixedly quartz glass I311 and quartz glass II312 when definite spectrum sample point and observation spectrum;

(4) worktable 314: be the platform that puts the spectrum observation thing, be the square direct-connected backing thickness homogeneous that connects, level is connected the lifting table top; The surface of worktable 314 be by one deck to the reflection of light rate less than 0.5% film wrapped; Facing the height pointer that vertical direction is installed below the worktable 314 near-end left ends, connecing the pressing degree that vertical height that the support that has scale in the support 322 quantizes the observation thing and film are observed thing with direct-connected.

Described structure part goes up and down to distinguish 32 in going up and down to distinguish, and comprises following:

1) the scissor lift platform 321: be connected vertical moving observation thing with worktable 314;

2) the direct-connected support 322 that connects: be object carrying area 31 and four vertical supports that are connected in translation district 32,, can quantize the height of vertical direction wherein at a scale that is marked with standard unit facing the left side.

Lifting table district 33 in the described structure part translation district comprises following:

1. left and right sides translation stage 331: material is the load-carrying single shaft translation stage that stainless steel can be faced left and right sides translation.Face at translation stage and lean to one side to write down translation distance, quantize observing about the thing surface level in conjunction with object carrying area.

2. translation stage 332 before and after: material is the load-carrying single shaft translation stage of translation before and after stainless steel can be faced.Face at translation stage and lean to one side to write down translation distance, observation thing surface level front and back are quantized in conjunction with object carrying area.

Described indoor high spectrum BRDF measures system except that the glass in the camera lens of light source region 1 and objective table district 3, and described each region surface all needs surface oxidation to turn black.

The described content of this instructions embodiment only is enumerating the way of realization of inventive concept; Should not being regarded as of protection scope of the present invention only limits to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.

Claims (9)

1. indoor high spectrum BRDF measures system, it is characterized in that: described system comprises the base of light source region, high spectrum auxilliary bright meter regulatory region, objective table district and horizontal positioned; Described light source region comprises light source, light source roll adjustment valve, light source pole and semi arch slide rail, and described light source is hinged with the center of circle of the semi arch slide rail that is fixed on the base side through described light source pole; The auxilliary bright meter regulatory region of described high spectrum comprises auxilliary bright meter, range regulator, 1/4 circular arc slide rail and hollow rotary disk, and described auxilliary bright meter is connected with described hollow rotary disk through 1/4 circular arc slide rail; Described objective table district is placed on described center, and the center of gravity in described objective table district and described base center of gravity on same vertical line, described center is fixed described hollow rotary disk; Described light source optical axis points to the center of circle of hollow rotary disk all the time; Described light source and the described auxilliary equal energized of bright meter;
Described light source comprises the lamp socket that halogen lamp is set, the collimation lens barrel that is connected with lamp socket; Lamp socket and collimation lens barrel junction have light hole; Be provided with the aperture adjustable diaphragm in the collimation lens barrel; Collimation lens barrel light-emitting window place is provided with straight mirror, and adjustable diaphragm position, said aperture overlaps with the focal plane of collimating mirror, sentences parallel light emergence from collimation lens barrel light-emitting window behind aperture adjustable diaphragm in the emergent light process collimation lens barrel of said halogen lamp and the collimating mirror;
Described light source pole comprises cross support arm and longitudinal girt, and described cross support arm one end is connected with said light source is vertical, and the other end is connected with described longitudinal girt is vertical; The hinged unit in the center of circle of the other end of described longitudinal girt and described semi arch slide rail quantizes for 5 ° to rotate, and the optical axis of assurance light source passes the center of hollow disk, and the lock of forming through described screw at described semi arch slide rail place of embracing is fixed;
Described range regulator comprises fibre-optical probe sleeve and locating sleeve; Have a millimeter unit scale on the described light source probe sleeve; Can adjust described probe of assisting bright meter to the distance between the observed object thing through described locating sleeve to the fixing of fibre-optical probe sleeve diverse location, concrete distance reads through the scale on the sleeve; The sound end of described auxilliary bright meter is equipped with the camera lens screw thread of the high spectrometer of standard, adjusts best field angle scope through the replacing and the probe of camera lens apart from the distance of object;
Described hollow rotary disk is made up of the rotating outer inner disc that coils and be fixed on the base of ring-type, is carved with 360 calibrated dials of standard on the described inner disc, quantizes rotational angle through the pointer on the outer dish; The radius of described outer dish is identical with 1/4 circular arc slide rail radius, guarantee auxilliary bright meter the slip of 1/4 circular arc slide rail with outside coil rotation the time form hemispheric inspection surface;
Described base is built into by aluminium section bar has centrosymmetric double-deck well type framework, and it is dull and stereotyped that aluminium section bar is laid on described base upper strata.
2. indoor high spectrum BRDF as claimed in claim 1 measures system, it is characterized in that: described auxilliary bright meter adopt optical fiber light-guiding, detection spectral range 350~2500nm, have identical flat filed concave grating beam split, the detector that linear matrix is arranged is surveyed.
3. indoor high spectrum BRDF as claimed in claim 2 measures system; It is characterized in that: be evenly equipped with on the described 1/4 circular arc slide rail with 5 ° be the scale at interval, the zenith angle of surveying through the auxilliary bright meter of the slidable adjustment of locating sleeve on 1/4 circular arc slide rail of the fixing bright meter of spoke.
4. indoor high spectrum BRDF as claimed in claim 3 measures system, and it is characterized in that: the plane of described hollow rotary disk is equal with the loading surface in described objective table district.
5. indoor high spectrum BRDF as claimed in claim 4 measures system; It is characterized in that: described objective table comprises object carrying area, up-down district and translation district and has the cylindric spinner of 360 calibrated dials of standard; Described object carrying area is made up of quartz glass I, quartz glass II, quartz glass support and worktable, realizes putting the quantification of spectrum observation thing and probe field angle number; Described up-down district is made up of scissor lift platform, the direct-connected support that connects, and realizes quantizing on the observation thing vertical direction; Described translation district is made up of left and right sides translation stage, front and back translation stage, in the spectrum observation process, carries out the quantitative translation of level, realizes that in conjunction with described object carrying area observation thing horizontal direction quantizes;
Described object carrying area, the connected mode of going up and down between district, the translation area are following: all plane quartz glass I, quartz glass II, quartz glass support, worktable, scissor lift platform, left and right sides translation stage and above the translation stage of front and back and the following flat surface that all requires; And these parts planar horizontal are placed, and its center of gravity is on a line of vertical and horizontal face; Quartz glass I, quartz glass II level insert two of the quartz glass support up and down in the quartz glass groove, and quartz glass I is last, and quartz glass II is down; Direct-connectedly afterwards connect four cantilever tip of support and object carrying area four jiaos of vertical connections of bottom, four jiaos connect four vertical linking to each other of support bottom of support with direct-connected above the translation stage of the said left and right sides; End face links to each other with the worktable bottom surface is parallel on the scissor lift platform, with parallel above the translation stage of the left and right sides; With parallel connection above the translation stage of front and back, but translation stage is each other vertical with front and back translation stage axis in the left and right sides below the translation stage of the left and right sides; Described spinner is installed in the upper surface of the said left and right sides translation stage in described translation district, separates with the fibre-optical probe rotation in the rotary course of described spinner.
6. indoor high spectrum BRDF as claimed in claim 5 measures system, and it is characterized in that: described structure part object carrying area comprises following:
(1) quartz glass I: square thickness is homogeneous very, and perspectivity is good, does not require the quartz glass of other higher optical properties; Be equipped with the standard grid at quartz glass I upper surface, outstanding center; From overlooking on the direction of objective table district, utilize the standard grid of quartz glass I upper surface the observation thing to be carried out the quantification of spectrum observation face through quartz glass II, and definite spectrum sample point position;
(2) quartz glass II: square thickness is homogeneous very, can not be lower than 99% quartz glass in 350nm-2500nm band of light transmissivity; The principal plane of quartz glass II and stationary table spectrum observation thing, the observation thing surface that also can realize flattening film like through scissor lift platform vertical moving worktable;
(3) quartz glass support: be the rectangular quartz glass support of housing rectangle and inside casing, wash the quartz glass of two horizontal directions at inwall deeply and inlay pickup groove that the objective table district faces long near-end and washes, be convenient to quartz glass I during observation spectrum and take out; Near-end respectively has two lock-screws up and down, fixedly quartz glass I and quartz glass II when definite spectrum sample point and observation spectrum;
(4) worktable: be the platform that puts the spectrum observation thing, be the square direct-connected backing thickness homogeneous that connects, level is connected the lifting table top; The surface of worktable be by one deck to the reflection of light rate less than 0.5% film wrapped; Facing the height pointer that vertical direction is installed below the worktable near-end left end, connecing the pressing degree that vertical height that the support that has scale in the support quantizes the observation thing and film are observed thing with direct-connected.
7. indoor high spectrum BRDF as claimed in claim 6 measures system, it is characterized in that: the district of going up and down during described structure part goes up and down to distinguish comprises following:
1) scissor lift platform: be connected vertical moving observation thing with worktable;
2) the direct-connected support that connects: be object carrying area and four vertical supports that are connected in translation district,, can quantize the height of vertical direction wherein at a scale that is marked with standard unit facing the left side.
8. indoor high spectrum BRDF as claimed in claim 7 measures system, and it is characterized in that: lifting table district in the described structure part translation district comprises following:
1. left and right sides translation stage: material is the load-carrying single shaft translation stage that stainless steel can be faced left and right sides translation.Face at translation stage and lean to one side to write down translation distance, quantize observing about the thing surface level in conjunction with object carrying area.
2. translation stage before and after: material is the load-carrying single shaft translation stage of translation before and after stainless steel can be faced.Face at translation stage and lean to one side to write down translation distance, observation thing surface level front and back are quantized in conjunction with object carrying area.
9. measure system like the described indoor high spectrum BRDF of claim 1~8, it is characterized in that: described indoor high spectrum BRDF measures system except that the glass in the camera lens of light source region and objective table district, and described each region surface all needs surface oxidation to turn black.
CN201210052209.3A 2012-03-01 2012-03-01 Indoor hyperspectral bidirectional reflectance distribution function (BRDF) determining system CN102590150B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210052209.3A CN102590150B (en) 2012-03-01 2012-03-01 Indoor hyperspectral bidirectional reflectance distribution function (BRDF) determining system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210052209.3A CN102590150B (en) 2012-03-01 2012-03-01 Indoor hyperspectral bidirectional reflectance distribution function (BRDF) determining system

Publications (2)

Publication Number Publication Date
CN102590150A true CN102590150A (en) 2012-07-18
CN102590150B CN102590150B (en) 2014-02-26

Family

ID=46479090

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210052209.3A CN102590150B (en) 2012-03-01 2012-03-01 Indoor hyperspectral bidirectional reflectance distribution function (BRDF) determining system

Country Status (1)

Country Link
CN (1) CN102590150B (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102829754A (en) * 2012-08-16 2012-12-19 北京林业大学 Three-dimensional goniometer
CN103063302A (en) * 2013-01-09 2013-04-24 浙江大学 Plant leaf diffuse reflection light distribution detecting device and detecting method
CN103439701A (en) * 2013-08-08 2013-12-11 南京晓庄学院 Simple earth surface bidirectional reflectance measurement support and measurement method
CN103994977A (en) * 2014-05-20 2014-08-20 中国科学院寒区旱区环境与工程研究所 Device for observing BRDF (Bidirectional Reflectance Distribution Function) in multiple angles through non-Lambert reflector
CN104181109A (en) * 2014-07-18 2014-12-03 浙江大学 Device for testing hyperspectrum of earth pillar in field
CN104266968A (en) * 2014-09-05 2015-01-07 中国地质大学(武汉) Automatic high-precision polarization bidirectional reflection measuring instrument
CN104458655A (en) * 2014-11-18 2015-03-25 北京环境特性研究所 Device and method for measuring bidirectional scattering characteristics of material
CN104458595A (en) * 2014-12-21 2015-03-25 华东交通大学 Device and method for spectral detection of content of proline in tomato leaves in multi-angle and in-situ manner
DE102013221415A1 (en) 2013-10-22 2015-04-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and device for detecting an object
CN104568774A (en) * 2014-12-21 2015-04-29 华东交通大学 Device and method for detecting content of nitrogen of tomato leaves by multi-angle in-situ spectrum
CN106404675A (en) * 2015-08-03 2017-02-15 南京理工大学 Method for measuring out-of-plane polarization bidirectional reflective function of rough surface
CN106404676A (en) * 2015-08-03 2017-02-15 南京理工大学 Apparatus for measuring out-of-plane polarization bidirectional reflective function of rough surface
CN107345908A (en) * 2017-06-26 2017-11-14 浙江大学 A kind of scattering system for obtaining fruit multiaspect diffusing reflection information
CN108896265A (en) * 2018-04-20 2018-11-27 浙江大学 Mounting platform and its application method for sheet laser emitter in small-sized wind tunnel PIV measuring system
CN109342329A (en) * 2018-10-26 2019-02-15 长春理工大学 BRDF Auto-Test System and test method
CN109454489A (en) * 2018-11-21 2019-03-12 金鑫乐 A kind of four axis rotary carrier platforms

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1197208A (en) * 1996-12-23 1998-10-28 中国科学院长春光学精密机械研究所 Measuring device to reflect diffuse reflector and light distribution transmitted through three dimensional space
US20030133121A1 (en) * 1995-06-07 2003-07-17 The Boeing Company Directional reflectometer
CN1928533A (en) * 2006-09-22 2007-03-14 中国科学院安徽光学精密机械研究所 Outdoor high optical spectrum BRDF automatic detection method
CN1940534A (en) * 2006-09-22 2007-04-04 中国科学院安徽光学精密机械研究所 Automatic ground BRDF measuring stand
US20080304070A1 (en) * 2005-11-23 2008-12-11 Spheron Vr Ag Bi-Directional Reflectance Distribution Measuring Instrument
CN102175650A (en) * 2011-01-30 2011-09-07 哈尔滨工业大学 Measuring device of continuous spectrum bidirectional reflectance distribution function

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030133121A1 (en) * 1995-06-07 2003-07-17 The Boeing Company Directional reflectometer
CN1197208A (en) * 1996-12-23 1998-10-28 中国科学院长春光学精密机械研究所 Measuring device to reflect diffuse reflector and light distribution transmitted through three dimensional space
US20080304070A1 (en) * 2005-11-23 2008-12-11 Spheron Vr Ag Bi-Directional Reflectance Distribution Measuring Instrument
CN1928533A (en) * 2006-09-22 2007-03-14 中国科学院安徽光学精密机械研究所 Outdoor high optical spectrum BRDF automatic detection method
CN1940534A (en) * 2006-09-22 2007-04-04 中国科学院安徽光学精密机械研究所 Automatic ground BRDF measuring stand
CN102175650A (en) * 2011-01-30 2011-09-07 哈尔滨工业大学 Measuring device of continuous spectrum bidirectional reflectance distribution function

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
赵忠义等: "多光谱BRDF测量系统转角装置研制", 《光电工程》, vol. 33, no. 11, 30 November 2006 (2006-11-30), pages 61 - 64 *

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102829754B (en) * 2012-08-16 2015-09-30 北京林业大学 Three-dimensional goniometer
CN102829754A (en) * 2012-08-16 2012-12-19 北京林业大学 Three-dimensional goniometer
CN103063302A (en) * 2013-01-09 2013-04-24 浙江大学 Plant leaf diffuse reflection light distribution detecting device and detecting method
CN103439701A (en) * 2013-08-08 2013-12-11 南京晓庄学院 Simple earth surface bidirectional reflectance measurement support and measurement method
DE102013221415A1 (en) 2013-10-22 2015-04-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and device for detecting an object
WO2015059115A1 (en) * 2013-10-22 2015-04-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and apparatus for detecting an object with circular-arc-shaped supporting elements
US10880538B2 (en) 2013-10-22 2020-12-29 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method and apparatus for detecting an object with circular-arc-shaped supporting elements
CN103994977B (en) * 2014-05-20 2016-04-20 中国科学院寒区旱区环境与工程研究所 The device of Non Lambert reflector multi-angle observation BRDF
CN103994977A (en) * 2014-05-20 2014-08-20 中国科学院寒区旱区环境与工程研究所 Device for observing BRDF (Bidirectional Reflectance Distribution Function) in multiple angles through non-Lambert reflector
CN104181109B (en) * 2014-07-18 2016-04-20 浙江大学 For the device of field test earth pillar EO-1 hyperion
CN104181109A (en) * 2014-07-18 2014-12-03 浙江大学 Device for testing hyperspectrum of earth pillar in field
CN104266968A (en) * 2014-09-05 2015-01-07 中国地质大学(武汉) Automatic high-precision polarization bidirectional reflection measuring instrument
CN104266968B (en) * 2014-09-05 2017-07-11 中国地质大学(武汉) High accuracy polarization two is to reflection automatic measuring instrument
CN104458655A (en) * 2014-11-18 2015-03-25 北京环境特性研究所 Device and method for measuring bidirectional scattering characteristics of material
CN104568774A (en) * 2014-12-21 2015-04-29 华东交通大学 Device and method for detecting content of nitrogen of tomato leaves by multi-angle in-situ spectrum
CN104458595A (en) * 2014-12-21 2015-03-25 华东交通大学 Device and method for spectral detection of content of proline in tomato leaves in multi-angle and in-situ manner
CN106404676A (en) * 2015-08-03 2017-02-15 南京理工大学 Apparatus for measuring out-of-plane polarization bidirectional reflective function of rough surface
CN106404675A (en) * 2015-08-03 2017-02-15 南京理工大学 Method for measuring out-of-plane polarization bidirectional reflective function of rough surface
CN107345908A (en) * 2017-06-26 2017-11-14 浙江大学 A kind of scattering system for obtaining fruit multiaspect diffusing reflection information
CN108896265A (en) * 2018-04-20 2018-11-27 浙江大学 Mounting platform and its application method for sheet laser emitter in small-sized wind tunnel PIV measuring system
CN109342329A (en) * 2018-10-26 2019-02-15 长春理工大学 BRDF Auto-Test System and test method
CN109454489A (en) * 2018-11-21 2019-03-12 金鑫乐 A kind of four axis rotary carrier platforms

Also Published As

Publication number Publication date
CN102590150B (en) 2014-02-26

Similar Documents

Publication Publication Date Title
Edwards et al. Integrating sphere for imperfectly diffuse samples
Jackson et al. Field calibration of reference reflectance panels
CN1226590C (en) Apparatus for measuring film thickness formed on object, apparatus and method for measuring spectral reflectance of object, and apparatus and method of inspecting foreign material on object
TW548401B (en) Systems, apparatuses and methods for diamond color measurement and analysis
Cary et al. A quartz photoelectric spectrophotometer
CN1910445B (en) Fluorescence measuring device for gemstones
Seckmeyer et al. Cosine error correction of spectral UV-irradiances
Michalsky et al. Cosine response characteristics of some radiometric and photometric sensors
Proctor et al. NIST high accuracy reference reflectometer-spectrophotometer
CN100514035C (en) Method and device for measuring scattered light space distribution
CN102323240B (en) Indoor full-automatic BRDF (bidirectional reflectance distribution function) measurement device
CN106233104B (en) The method and apparatus characterized for luminaire
CN101545826B (en) Measuring device and measuring method for diffraction efficiency of grating
CN1959366A (en) Luminous flux measurement device of using standard light source in narrow beam for LED, and testing method
CN101368872B (en) LED luminous flux measurement apparatus and method
Pettit Measurements of ultra-violet solar radiation
CN102735632B (en) Apparatus and method for measuring horizontal distribution and near surface vertical distribution of atmosphere pollution gas by using sky diffusion light
US8564765B2 (en) Optical measurement system
CN104483104B (en) A kind of photo detector spectral response analysis system
CN203572632U (en) Device for measuring optical parameters of dielectric film
CN103344613B (en) A kind of material reflection characteristic measurement apparatus and method
CN100567916C (en) The calibration measuring system of diffuse reflector spectrum corner reflection characteristic on the star
CN100443881C (en) Field BRDF fixed point automatic measuring device
CN104501960B (en) A kind of spectrophotometric color measurement instrument based on LED light source and its implementation
CN102297720B (en) Measuring apparatus for brightness of sky background

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model