Retroreflection measuring instrument calibration plate

Abstract

The utility model discloses a calibration plate of a retroreflection measuring instrument. The calibration plate comprises a calibration plate main body, a plurality of magnets and a calibration reflective film, a plurality of magnet mounting grooves are formed in the front surface and the back surface of the calibration plate main body, and magnets are mounted in the magnet mounting grooves; circular grooves are formed in the front surface and the back surface of the calibration plate main body; calibration reflective films with different colors are mounted in the two circular grooves; and the circular groove is a sunken circular groove, so that the surface is in a flat state after the reflective film is bonded with the calibration plate main body. The retro-reflection measuring instrument calibration plate provided by the utility model adopts magnetic attraction type attachment, so that the calibration plate and the retro-reflection measuring instrument can be quickly attached; by adopting the design that the middle and the periphery are hollowed to form the weight reduction cavity, the weight is light and is adsorbed on the detection window; and the calibration reflective films with different colors are arranged on the front and back surfaces, so that double-surface switching calibration is realized, and the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mark measurement, in particular to a calibration plate for a retroreflectometer. Background Art

[0002] With the rapid development of transportation technology, road safety has become an increasingly important issue of concern. Among them, reflective signs and markings play a vital role in ensuring driving safety at night or in low light conditions. Therefore, accurately measuring the retroreflection coefficient of these reflective materials is of great significance for evaluating their performance and quality.

[0003] Retroreflectometer is a device specially used to measure the retroreflection coefficient of reflective materials. However, in order to ensure the accuracy and reliability of the measurement results, the calibration of the measuring instrument is particularly critical. The calibration plate is used as a calibration tool for retroreflectometer, and its performance and quality directly affect the accuracy of the measurement results.

[0004] Traditional calibration plates often have some problems, such as unstable reflective performance, poor wear resistance, easy aging, etc., which may lead to deviations in calibration results. In addition, with the continuous advancement of reflective material technology, traditional calibration plates may not meet the calibration needs of new reflective materials.

[0005] Therefore, developing a new type of retroreflectometer calibration plate with stable reflective performance, good wear resistance and aging resistance, and the ability to adapt to the calibration needs of different types of reflective materials has become an urgent problem to be solved.

[0006] In summary, the technical background and importance of the calibration plate for retroreflectometers cannot be ignored. Through in-depth research and development of new calibration plates, the accuracy and reliability of retroreflectometers can be further improved, providing a stronger guarantee for road safety. Utility Model Content

[0007] In order to overcome the defects of the prior art, the purpose of the utility model is to provide a calibration plate for a retroreflectometer, so that the data of the measuring instrument meets the standard requirements and the measuring data has high accuracy.

[0008] To this end, the utility model proposes a retroreflection measuring instrument calibration plate, including a calibration plate body, a plurality of magnets and a calibration reflective film; the calibration plate body has a plurality of magnet mounting grooves on the front and back sides, and magnets are installed in the magnet mounting grooves; the calibration plate body has circular grooves on the front and back sides, and calibration reflective films of different colors are installed in the two circular grooves; the circular grooves are sunken circular grooves, so that the surface of the calibration reflective film is in a flat state after being bonded to the calibration plate body.

[0009] As a preferred technical solution of the present invention, magnet one is installed in the magnet installation groove on the front side of the calibration plate body, and magnet two is installed in the magnet installation groove on the back side of the calibration plate body, and magnet one and magnet two magnetically repel each other.

[0010] As a preferred technical solution of the present invention, the middle and surrounding parts of the calibration plate body are hollowed out to form a weight-reducing cavity.

[0011] As a preferred technical solution of the present invention, the edge design of the calibration plate body adopts a wrap-around card slot.

[0012] The calibration plate for the retroreflectometer provided by the utility model adopts magnetic attachment, which is convenient for quick attachment of the calibration plate and the retroreflectometer; by adopting a design in which the middle and four sides are hollowed out to form a weight-reducing cavity, the calibration plate is light in weight and convenient for adsorption on the detection window; by installing calibration reflective films of different colors on the front and back sides, double-sided switching calibration is possible, and the utility model has the characteristics of convenient operation, etc.

[0013] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 It is a schematic diagram of the structure of the calibration plate of the retroreflectometer of the utility model;

[0016] Figure 2 An exploded view of a calibration plate for a retroreflectometer of the present utility model;

[0017] Figure 3 It is a rear view of the calibration plate of the retroreflectometer of the utility model;

[0018] Description of Reference Numerals

[0019] 1. Calibration board body; 2. Magnet 1; 3. Calibration reflective film; 4. Magnet 2; 11. Circular groove; 12. Wrap-around card slot; 13. Weight reduction cavity; 14. Magnet installation slot. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] like Figure 1~Figure 3As shown, the calibration plate of the retroreflectometer of the present invention is mainly divided into three parts, namely, a calibration plate body 1, a plurality of magnets and a calibration reflective film 3.

[0022] Specifically, the calibration plate main body 1 adopts a double-sided symmetrical design and embeds two groups of mutually repelling magnets at the same time. There are several magnet mounting grooves 14 around the front and back of the calibration plate main body 1. Magnet 1 2 is installed in the magnet mounting groove 14 on the front of the calibration plate main body 1, and magnet 2 4 is installed in the magnet mounting groove 14 on the back of the calibration plate main body 1. Magnet 1 2 and magnet 2 4 magnetically repel each other, and magnet 1 2 and magnet 2 4 on two adjacent calibration plate main bodies 1 are magnetically attracted to each other, so that the two calibration plate main bodies 1 are stacked together.

[0023] The calibration plate body 1 is hollowed out in the middle and around to form a weight-reducing cavity 13, which is light in weight and convenient for adsorption on the detection window; the edge design of the calibration plate body 1 adopts a wrap-around card slot 12 to ensure that when the calibration plate is adsorbed on the retroreflectometer window, the retroreflectometer window is in a completely closed state.

[0024] The calibration board body 1 has a sunken circular groove 11 in the middle, which makes it easy for the calibration reflective film 3 to be flat after being bonded to the calibration board body 1. In addition, the calibration board body 1 has circular grooves 11 on the front and back, and calibration reflective films 3 of different colors are installed in the two circular grooves 11.

[0025] The working principle of the calibration plate of the retroreflectometer of the present utility model is briefly described below.

[0026] The calibration plate for the retroreflectometer provided by the utility model adopts magnetic attachment, which is convenient for quick attachment of the calibration plate and the retroreflectometer; by adopting a design in which the middle and four sides are hollowed out to form a weight-reducing cavity, the calibration plate is light in weight and convenient for adsorption on the detection window; by installing calibration reflective films of different colors on the front and back sides, double-sided switching calibration is possible, and the utility model has the characteristics of convenient operation, etc.

[0027] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A retroreflectometer calibration plate, characterized in that: It comprises a calibration plate body (1), a plurality of magnets and a calibration reflective film (3); The calibration plate body (1) has a plurality of magnet mounting grooves (14) on the front and back sides, and magnets are mounted in the magnet mounting grooves (14); The front and back sides of the calibration plate body (1) are both provided with circular grooves (11), and calibration reflective films (3) of different colors are installed in the two circular grooves (11); the circular grooves (11) are sunken circular grooves (11), so that the surfaces of the calibration reflective films (3) and the calibration plate body (1) are in a flat state after being bonded.

2. The retroreflectometer calibration plate according to claim 1, characterized in that: A magnet one (2) is installed in the magnet installation groove (14) on the front side of the calibration plate body (1), and a magnet two (4) is installed in the magnet installation groove (14) on the back side of the calibration plate body (1), and the magnet one (2) and the magnet two (4) are magnetically mutually repelling.

3. The retroreflectometer calibration plate according to claim 1, characterized in that: The calibration plate body (1) is hollowed out in the middle and around to form a weight-reducing cavity (13).

4. The retroreflectometer calibration plate according to claim 1, characterized in that: The edge design of the calibration plate body (1) adopts a wrap-around card slot (12).

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