CN214309128U

CN214309128U - Reflected light intensity measuring module of hand-held type contrary reflectance tester

Info

Publication number: CN214309128U
Application number: CN202120447978.8U
Authority: CN
Inventors: 马帅
Original assignee: Zibo Yili Electronics Co ltd
Current assignee: Zibo Yili Electronics Co ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-09-28
Anticipated expiration: 2031-03-02

Abstract

The utility model provides a retroreflection light intensity measurement module of handheld contrary reflectance tester, belongs to contrary reflectance test technical field. The method is characterized in that: including base plate (5), light source (8) and surveyed material (7) are located the both sides of base plate (5) respectively, offer light trap (3) that realize light and pass on base plate (5), are provided with a plurality of light intensity sensors (4) side by side on base plate (5) orientation surveyed material (7) terminal surface. In the reflected light intensity measurement module of the handheld retroreflection coefficient tester, the size is reduced by arranging the light intensity sensors meeting the requirements of observation angles on the substrate, and the requirements of different observation angles in the handheld retroreflection coefficient tester are facilitated. The light source and the material to be detected are respectively positioned at two sides of the substrate, and the light source irradiates the surface of the material to be detected after penetrating through the light hole of the substrate, so that the defect of complex structure when a semitransparent and semi-reflective element is needed to realize a retroreflection coefficient in the prior art is overcome.

Description

Reflected light intensity measuring module of hand-held type contrary reflectance tester

Technical Field

The utility model provides a retroreflection light intensity measurement module of handheld contrary reflectance tester, belongs to contrary reflectance test technical field.

Background

At present, the application of the retroreflective material in the traffic industry is wider and wider, and the retroreflective material is used in traffic safety facilities such as traffic signs, raised road signs, pavement markings and the like. Whether a retroreflective material is acceptable or not becomes a key factor affecting the engineering quality, and measuring the coefficient of retroreflection of a retroreflective material is an important parameter for determining whether a retroreflective material is acceptable or not.

Currently, the coefficient of retroreflection of retroreflective materials is typically measured in the metrology sector by large retroreflective test systems. During testing, light emitted by the light source irradiates the surface of the retro-reflective material and is reflected by the retro-reflective material, the light returns in the original path, and then the light intensity of the reflected light is measured at different observation angles at specified distances of the light reflection loop, so that the retro-reflective coefficient of the retro-reflective material is finally obtained. When measurement at different observation angles is realized, a large-scale retro-reflection test system generally lifts the optical detector to different heights through a precise lifting mechanism so as to realize different observation angles.

With the continuous development of reflection coefficient measuring instruments, handheld reflection coefficient measuring instruments appear on the market, but the handheld reflection coefficient measuring instruments cannot be internally provided with precise lifting mechanisms to meet different observation angles. Therefore, a technical scheme capable of being applied to a handheld retroreflection coefficient tester to realize different observation angles is a technical problem to be solved urgently in the field.

Meanwhile, in a reflection coefficient tester (testing system) in the prior art, the reflection coefficient tester is generally realized by a semi-transparent and semi-reflective element during testing, after a light source irradiates the semi-transparent and semi-reflective element, part of incident light is reflected to a tested material, and the measurement of the reflection coefficient is further realized.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the reflected light intensity measuring module of the handheld retroreflection coefficient tester is provided, the size is reduced by arranging a plurality of light intensity sensors meeting the requirements of observation angles on the substrate, and the requirements of different observation angles in the handheld retroreflection coefficient tester are facilitated.

The utility model provides a technical scheme that its technical problem adopted is: the LED lamp comprises a substrate, wherein light holes for allowing light to pass through are formed in the substrate, and a plurality of light intensity sensors are arranged on the substrate side by side.

Preferably, the plurality of light intensity sensors are arranged on one side of the light hole side by side, and the other side of the light hole is also provided with a color sensor.

Preferably, the light intensity sensors are provided with three light intensity sensors, and the three light intensity sensors and the light reflection points of the material to be detected form observation angles of 0.2 degrees, 0.5 degrees and 1 degree respectively.

Preferably, the outer ring of the base plate is provided with a plurality of fixing holes.

Preferably, a data interface is arranged on the back surface of the substrate, and the output ends of the light intensity sensor and the color sensor are connected into the data interface.

Preferably, the substrate is a PCB, and a circuit is disposed on the substrate to connect the output ends of the light intensity sensor and the color sensor to the data interface.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

1. in the reflected light intensity measurement module of the handheld retroreflection coefficient tester, the size is reduced by arranging the light intensity sensors meeting the requirements of observation angles on the substrate, and the requirements of different observation angles in the handheld retroreflection coefficient tester are facilitated.

2. The light source and the material to be measured are respectively positioned at two sides of the substrate, the light source irradiates the surface of the material to be measured after penetrating through the light holes of the substrate, and the light intensity of reflected light is detected by the light intensity sensor arranged on the substrate, so that the defect of complex structure when the retroreflection coefficient is realized by arranging the semi-transparent semi-reflecting element in the prior art is overcome.

3. Through setting up color sensor, realized the test to being surveyed material colour simultaneously.

Drawings

FIG. 1 is a front view of a reflected light intensity measuring module of a hand-held retroreflection coefficient measuring instrument.

FIG. 2 is a rear view of a reflected light intensity measuring module of the hand-held retroreflection coefficient measuring instrument.

FIG. 3 is a schematic view of a measurement module of the reflected light intensity of the hand-held retroreflection coefficient measuring instrument.

Wherein: 1. the device comprises a fixing hole 2, a color sensor 3, a light hole 4, a light intensity sensor 5, a substrate 6, a data interface 7, a material to be detected 8 and a light source.

Detailed Description

Fig. 1 to 3 are preferred embodiments of the present invention, and the present invention will be further explained with reference to fig. 1 to 3.

As shown in fig. 1-2, a reflected light intensity measuring module (hereinafter referred to as measuring module) of a handheld retroreflection coefficient tester includes a substrate 5, the substrate 5 is a rectangular plate, and a plurality of fixing holes 1 for fixing the substrate 5 are formed in the periphery of the substrate 5.

The front surface of the base plate 5 is provided with a light hole 3, three light intensity sensors 4 are sequentially fixed on one side of the light hole 3 along the length direction of the base plate 5, and the other side of the light hole 3 is provided with a color sensor 2. A data interface 6 is provided at the rear end of the substrate 5. The color sensor 2 may also be arranged at other positions on the front side of the substrate 5.

The substrate 5 can be realized by a common PCB, necessary circuits are arranged on the PCB, components and peripheral circuits (not shown) necessary for realizing the operation of the light intensity sensor 4 and the color sensor 2 are connected with corresponding pins of the light intensity sensor 4 and the color sensor 2, and signal output ends of the light intensity sensor 4 and the color sensor 2 are connected to the data interface 6 to realize data transmission.

The specific working process and working principle are as follows:

as shown in fig. 3, when the retroreflection coefficient is measured, the light source 8 is provided on the back surface of the measurement module, and the material 7 to be measured is placed at a predetermined angle at a predetermined position on the front surface of the measurement module. When the test is started, light emitted by the light source 8 is transmitted to the surface of the material 7 to be tested through the light transmission hole 3 and is reflected by the material 7 to be tested.

The reflected light irradiates on the light intensity sensor 4 and the color sensor 2 on the front surface of the substrate 5 after being reflected, the three light intensity sensors 4 on the surface of the substrate 5 respectively correspond to the positions of 0.2 degrees, 0.5 degrees and 1 degree observation angles and are respectively used for detecting the light intensities of the reflected light at the observation angles of 0.2 degrees, 0.5 degrees and 1 degree, and other numbers of the light intensity sensors 4 can be set according to requirements so as to meet the requirements of other observation angles. After the reflected light is irradiated onto the color sensor 2, the reflected light is used for detecting the color of the material 7 to be detected by the color sensor 2. The light intensity sensor 4 and the color sensor 2 send the detected data into a control circuit of the hand-held retroreflection coefficient tester, and the retroreflection coefficient of the material 7 to be tested is further calculated by the control circuit.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a reflected light intensity measurement module of handheld contrary reflectance tester which characterized in that: the LED lamp comprises a substrate (5), light holes (3) for light to pass through are formed in the substrate (5), and a plurality of light intensity sensors (4) are arranged on the substrate (5) side by side.

2. The module of claim 1, wherein the module is a module for measuring the intensity of reflected light from the hand-held device for measuring the coefficient of retroreflection: the light intensity sensors (4) are arranged on one side of the light holes (3) side by side, and the color sensor (2) is further arranged on the other side of the light holes (3).

3. The module of claim 1 or 2, wherein the module is characterized by: the light intensity sensors (4) are arranged in three numbers, and the three light intensity sensors (4) and the reflection points of the measured material (7) respectively form observation angles of 0.2 degrees, 0.5 degrees and 1 degree.

4. The module of claim 1, wherein the module is a module for measuring the intensity of reflected light from the hand-held device for measuring the coefficient of retroreflection: the outer ring of the base plate (5) is provided with a plurality of fixing holes (1).

5. The module of claim 2, wherein the module is configured to measure the intensity of the reflected light from the hand-held device: the back of the substrate (5) is provided with a data interface (6), and the output ends of the light intensity sensor (4) and the color sensor (2) are connected into the data interface (6).

6. The module of claim 5, wherein the module is configured to measure the intensity of the reflected light from the hand-held device: the base plate (5) is a PCB circuit board, a circuit is arranged on the base plate (5), and the output ends of the light intensity sensor (4) and the color sensor (2) are connected with the data interface (6).