CN205049237U - Distributing type photometer - Google Patents

Abstract

The utility model provides a distributing type photometer, include: the back shaft, the light source setting is in on the back shaft, a pedestal, the base supports the both ends of back shaft, and a support, the support has crooked shape, the both ends of support rotatably set up on the back shaft, and the light source is in the setting of support is in support between the epaxial both ends, a plurality of light the detection unit, a plurality of light the detection unit set up on the inboard surface of support, and driving motor, the driving motor drive the support winds the back shaft is rotatory.

Description

A kind of distributed photometer

Technical field

The utility model relates to field of optical measuring technologies, more specifically, relates to a kind of distributed photometer.

Background technology

Photometer is the instrumentation measuring lamp luminescence intensity distributions, is also goniophotometer.Can by parameters such as the total radiant flux of photometer determination light fixture, luminescence efficiency, distribution curve fluxs.Illumination engineer carries out Lighting Design according to above-mentioned parameter, and makes designed illumination scheme meet corresponding country and international standard.Such as, in the design of road lighting, the arrangement of street lamp can be determined according to characteristics such as the radiation flux of used street lamp, luminescence efficiency, distribution curve fluxs, with meet country and international standard for the pavement of road of different brackets specify the performance design requirement such as illumination, brightness, homogeneity.

Fig. 1 is the conventional photometric schematic diagram of rotary mirror type, and current distributed photometer is mainly rotary mirror type distributed photometer.As shown in Figure 1, when using the luminous intensity distribution of rotary mirror type photometer measurement light fixture L, light fixture L (i.e. measured light) circles with certain turning radius horizontal rotating shaft A that unrolls, the light that it sends passes through to penetrate outside 45 degree of mirror M be obliquely installed, and the photo-detector S be placed in from catoptron tens meters to the position of more than tens rice receives the light reflected by catoptron.According to the requirement at light fixture test angle interval, whenever light fixture L around axle A do one week or half cycle after circular motion, rotation axis C rotates a predetermined angular, such as 1 degree, 5 degree, 10 degree, 15 degree, 20 degree at equal intervals, then rotation axis A remake one week or half cycle from circular motion, after rotation axis C rotates a circle, test completes, detector exports the intensity of the light that light fixture penetrates in different angles direction, according to the distance r of photometry theorem and detector and lamp locker, the relevant optical properties obtaining light fixture just can be calculated.

Light fixture also controls by rotation axis B, when doing gyration, light fixture attitude remains unchanged, the luminescence efficiency of light fixture can not change rotation particular importance in distributed photometer design of B axle, because surveying instrument must ensure that light fixture does gyration along half through the F Circular test for R, makes measuring distance constant, light fixture operating attitude remains unchanged simultaneously, otherwise when the rotation of B axle, measuring distance changes, light fixture operating attitude changes, and just produces very large measuring error.

Rotary mirror type distributed photometer needs rotation axis A and rotation axis C two rotation axiss to cooperatively interact when measuring, rotation axis C rotates a set angle, such as 1 degree, 5 degree, 10 degree, 15 degree, 20 degree at equal intervals, then rotation axis A remake one week or half cycle from circular motion, after rotation axis C rotates a circle, aptitude test completes, and measures efficiency lower.

According to the requirement of standard GB/T/T26184-2010 " measuring method of absolute luminescence intensity distributions ", catoptron should be enough large, can not light beam complicated in mechanical structure again, and equipment cost is higher.

In addition, during measurement, light fixture needs to rotate along with rotation axis C, also can give to measure and introduce certain error.

Existing following patent improves rotary mirror type distributed photometer at present.

1, Chinese utility model patent ZL03129198.8 is in mode as shown in Figure 1, rotating shaft B fills a synchronous driving box be made up of worm and gear, rotation direction is contrary with rotation axis A, utilize and detect light fixture turning axle goniometer whether in vertical position, the output of goniometer is for adjusting the control signal of rotation axis B speed, measuring distance can be made so constant, and light fixture operating attitude remains unchanged simultaneously, ensures measuring accuracy.

2, Chinese utility model patent ZL20040090615.X is in mode as shown in Figure 1, a weight G is added in rotation axis B bottom, apply its weight balancing light fixture, when light fixture gyration because gravity relation can keep light fixture operating attitude constant, measuring distance can be made so constant, light fixture operating attitude remains unchanged simultaneously, ensures measuring accuracy.

3, Chinese utility model patent ZL201020050037.2 is in mode as shown in Figure 1, principal axis A and rotation axis B realize angularly rotating backward of light fixture by chain link transmission, measuring distance can be made so constant, and light fixture operating attitude remains unchanged simultaneously, ensures measuring accuracy.

4, Chinese utility model patent ZL200920202721.5 is in mode as shown in Figure 1, what principal axis A and rotation axis B realized light fixture by gear drive angularly rotates backward compensation, make measuring distance constant, light fixture operating attitude remains unchanged simultaneously, ensures measuring accuracy.

5, Chinese invention patent ZL20110078544.6 is in mode as shown in Figure 1, changes mirror M into as shown in Figure 2 both wings formula scintilloscope by ellipse.Scintilloscope utilization factor can be improved like this, reduce mirror size, reduce costs.

In addition, Chinese utility model patent ZL200820046804.5 proposes a kind of distributed photometer, and its structure as shown in Figure 3, adopts multiple probe to measure simultaneously, can Quick Measurement light source irradiance in all directions.But, in the photometer of this structure, measurement light irradiation degree being carried out to 360 degree can not be realized.In addition, the error that detector carriage is brought when rotating is comparatively large, and can only measure the irradiance of half sphere.

Summary of the invention

The utility model is to solve the above-mentioned technical matters that exists in prior art and make, its object is to provide a kind of measuring error little, and can realize the distributed photometer at Quick Measurement.

To achieve these goals, the utility model provides a kind of distributed photometer, comprising: back shaft, and light source is arranged on described back shaft; Pedestal, the two ends of back shaft described in described base supports; Support, described support has bending shape, and the two ends of described support can be rotatably set on described back shaft, and described light source is between the two ends being arranged on described back shaft of described support; Multiple photo detecting unit, described multiple photo detecting unit be arranged on described support in the face of described back shaft side surface on; And drive motor, described drive motor drives described support to rotate around described back shaft.

In addition, described support has the shape of semi arch, and the center of described back shaft has the shape of depression, and described light source is arranged on the recessed position place of described back shaft, makes described light source be positioned at the home position place of the circle at described support place.

In addition, described back shaft can around its center axis thereof.

In addition, described multiple photo detecting unit be arranged on equably described support in the face of described back shaft side surface on.

In addition, described Survey control module comprises: control module, and described control module makes described support rotate to precalculated position for controlling described drive motor; Data receipt unit, described data receipt unit receives the irradiance value recorded from described multiple photo detecting unit; Data processing unit, the irradiance value that described data processing unit is received by described data receipt unit calculates the total radiant flux of measured light, luminescence efficiency and distribution curve flux.

In addition, described Survey control module also comprises wireless communication unit, and the irradiance value of described photo detecting unit is sent to teleprocessing terminal by described wireless communication unit.

Measured by multiple photo detecting unit by swinging mounting, only need to make holder pivots one week just can radiation flux in all directions of measurement light source, thus can Quick Measurement be realized.

Accompanying drawing explanation

By reference to following embodiment and claims content and by reference to the accompanying drawings, other object of the present utility model and result will be understood and easy to understand more.In the accompanying drawings:

Fig. 1 is the photometric schematic diagram of rotary mirror type of prior art;

Fig. 2 is the schematic diagram in the reflection border used in the rotary mirror type photometer of prior art;

Fig. 3 is the view of the distributed photometer of prior art;

Fig. 4 is the view of distributed photometer of the present utility model;

Fig. 5 is the block scheme of the Survey control module of distributed photometer of the present utility model.

In the accompanying drawings, identical Reference numeral indicates similar or corresponding feature or function.

Embodiment

In the following description, for purposes of illustration, in order to provide the complete understanding to one or more embodiment, many details have been set forth.But, clearly, also these embodiments can be realized when there is no these details.In other example, one or more embodiment for convenience of description, known structure and equipment illustrate in block form an.

Come below with reference to accompanying drawings to be described in detail according to each embodiment of the present utility model.

Fig. 3 is the view of the distributed photometer according to prior art.As shown in Figure 3, comprise according to distributed photometer of the present utility model: back shaft 1, support 2, multiple photo detecting unit 4 and drive motor (not shown).In addition, distributed photometer of the present utility model also comprises pedestal, and the two ends of back shaft 1 are fixed on pedestal.Such as, pedestal can be two supporting mechanisms be provided separately, and is supported on the both sides of support 1 axle respectively.In addition, back shaft 1 can be set to and plane-parallel.

Measured light 3 is arranged on back shaft 1, and such as, measured light 3 can be arranged on the middle position of back shaft 1, but the utility model is not limited thereto.Light source 3 can be the light sources such as high-pressure mercury lamp, metal halide lamp (Metal halogen lamp), ceramic gold-halogen lamp.The luminescence efficiency of lighting due to the horizontal direction of same light source is different from the luminescence efficiency that vertical direction is lighted, and when therefore application distribution photometer carries out radiant flux measurement to Different Light, the state of lighting of light source does not allow change.Usually, when measuring, be preferably the invariant position of light source, with the error preventing the change in location of light source from bringing.Preferably, back shaft 1 can around its central axis rotation, but the utility model is not limited thereto.Because light source 3 is fixed on back shaft 1, when needs make light source rotate, only need rotation support shaft 1.In the process measured, usually do not wish that change in location or rotation occur light source 3, therefore need fixed support axle 1, thus prevent light source 3 from rotating along with back shaft 1.

Support 2 has bending shape, and the two ends of support 2 are separately positioned on the both sides of back shaft 1, and support 2 can rotate around back shaft 1.The inner surface (support 2 is in the face of the side surface of back shaft 1) of support 2 is provided with multiple photo detecting unit 4.Photo detecting unit 4 can be silicon photocell, photodiode etc., but the utility model is not limited thereto, and can also use other photo detecting unit part of the prior art.In addition, preferably, each photo detecting unit 4 has foursquare shape, and each photo detecting unit 4 has the identical length of side, thus has identical light receiving area, but the utility model is not limited thereto.Preferably, multiple photo detecting unit 4 can be arranged on the medial surface of back shaft 1 equably.

Preferably, support 2 can be circular arc, and such as, support 2 is semi arch, and two end points are separately fixed at the two ends of back shaft 1.In this case, the center section of back shaft 1 can have the shape of depression, and measured light 3 is arranged in this sunk part, thus makes light source 3 be positioned at the home position place of the circle at support 2 place.Now, light source 3 is equal to the position of each photo detecting unit 4, thus can simplify calculating.

Distributed photometer of the present utility model also comprises drive motor, rotates around back shaft 1 for driving arm 2.But, should be appreciated that existing other means in the art can also be used to carry out alternative drive motor to be rotated around back shaft 1 to make support 2.Drive motor makes support 2 rotate a predetermined angle at every turn, and then multiple photo detecting unit measures irradiance at this device simultaneously.After drive motor makes support 2 rotate one week, irradiance in all directions just obtaining light source 3.Thus the total radiant flux of light source can be determined, and then the luminescence efficiency or distribution curve flux etc. of light source 3 can be calculated.Measured by multiple photo detecting unit by swinging mounting, only need to make holder pivots one week just can radiation flux in all directions of measurement light source, thus can Quick Measurement be realized.

Distributed photometer of the present utility model can also comprise Survey control module 6.Survey control module 6 can comprise: control module 61, data receipt unit 62 and data processing unit 63.Wherein, control module 61 turns to precalculated position for controlling drive motor to make support 2, thus carries out measuring or calibrating.The irradiation intensity value that data receipt unit 62 records from photo detecting unit 4.The irradiance value that data processing unit 63 receives according to data receipt unit 62 calculates the total radiant flux of measured light, luminescence efficiency and distribution curve flux.In one particularly embodiment, as shown in Figure 5, Survey control module 6 comprises wireless wifi communication unit, and the unit of Survey control module is communicated with drive motor or photo detecting unit 4 by this wireless wifi communication unit.Therefore wireless wifi communication unit also can implement the function of light data receipt unit.Main control unit can be used as control module 61, and it sends control signal to drive motor, and drive motor rotates according to this control signal, thus closes support 2 and turn to precalculated position and measure.Wireless wifi communication unit receives the irradiance value recorded from photo detecting unit 4, and is sent to data processing unit and carry out data processing.Data processing unit calculates the calibration factor of each photo detecting unit 4 according to the method described above, and calibrates according to this calibration factor the irradiance value that all photo detecting units 4 record.In addition, the radiation flux of measured light 3 and distribution curve flux etc. can also be calculated according to the irradiance value through calibration further.In addition, Survey control module 6 can also comprise storage unit, to store result of calculation.

Preferably, Survey control module 6 can not process data, but received data are sent to remote server by wired or wireless mode process, to improve the efficiency of data processing.

Although describe in detail Survey control module in conjunction with specific embodiments, but distributed photometer of the present utility model is not limited to the above Survey control module 6.After reading instructions of the present utility model, those skilled in the art easily can expect other technical scheme of other alternative Survey control module 6.Therefore, the utility model is not limited to the above.

Although disclosed content shows exemplary embodiment of the present utility model above, it should be noted that under the prerequisite not deviating from the scope that claim limits, can multiple change and amendment be carried out.Need not perform with any particular order according to the function of the claim to a method of inventive embodiments described herein, step and/or action.In addition, although element of the present utility model can describe or requirement with individual form, also it is contemplated that to have multiple element, is individual element unless explicitly limited.

Claims (6)

1. a distributed photometer, comprising:

Back shaft, light source is arranged on described back shaft;

Pedestal, the two ends of back shaft described in described base supports;

Support, described support has bending shape, and the two ends of described support can be rotatably set on described back shaft, and described light source is between the two ends being arranged on described back shaft of described support;

Multiple photo detecting unit, described multiple photo detecting unit is arranged on the inner surface of described support; And

Drive motor, described drive motor drives described support to rotate around described back shaft.

2. distributed photometer according to claim 1, wherein, described support has the shape of semi arch, the center section of described back shaft has the shape of depression, described light source is arranged on the recessed position place of described back shaft, makes described light source be positioned at the home position place of the circle at described support place.

3. distributed photometer according to claim 1, wherein, described back shaft can around its center axis thereof.

4. distributed photometer according to claim 1, wherein, described multiple photo detecting unit be arranged on equably described support in the face of described back shaft side surface on.

5. distributed photometer according to claim 1, also comprises Survey control module, and described Survey control module comprises:

Control module, described control module makes described support rotate to precalculated position for controlling described drive motor;

Data receipt unit, described data receipt unit receives the irradiance value recorded from described multiple photo detecting unit;

Data processing unit, the irradiance value that described data processing unit is received by described data receipt unit calculates the total radiant flux of measured light, luminescence efficiency and distribution curve flux.

6. distributed photometer according to claim 5, wherein, described Survey control module also comprises wireless communication unit, and the irradiance value of described photo detecting unit is sent to teleprocessing terminal by described wireless communication unit.