Turbidity monitor with stray light elimination structure
By setting up the lighting holes and light paint in the monitoring cavity of the turbidity monitor, the problem of the existing turbidity monitor is affected by the mixed light, and the higher detection accuracy and stability are achieved.
Patent Information
- Application Number
- CN202420711932.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-08
AI Technical Summary
Existing turbidity monitors are susceptible to stray light during the measurement process, resulting in limited stability and accuracy of detection results.
Design a turbidity monitor with a miscellaneous lighting structure. By setting up the lighting holes in the monitoring cavity, the thread -shaped convex structure and anti -light paint are set on the inner wall of the light elimination hole. Reflex and absorption, thereby reducing the impact of miscellaneous light.
Through the design of the lighting hole, the impact of the miscellaneous light on the detection results is effectively reduced, and the accuracy and stability of the turbidity measurement is improved.
Smart Images
Figure CN222419972U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a turbidity monitor, in particular to a turbidity monitor with a stray light elimination structure. Background Art
[0002] The current turbidity monitor uses the 90-degree scattered light detection principle. The light source forms a parallel light beam through the lens and aperture and enters the solution to be tested. The light is scattered by the particles in the solution to be tested, and the scattered light at a 90-degree direction to the incident light is received by the photodetector. The level of solution turbidity is linearly related to the scattered light intensity, thus achieving online measurement of solution turbidity. However, the light will generate excess scattered light in this process, thereby affecting the stability of turbidity measurement. Therefore, stray light needs to be eliminated during testing to obtain accurate test results. Black material shells are now commonly used to reduce the negative effects of scattered stray light on turbidity measurement, but this cannot effectively reduce the impact of scattered stray light. Therefore, the applicant has designed a turbidity monitor with a stray light elimination structure to solve the above problem. Summary of the invention
[0003] In order to overcome the deficiencies of the prior art, the utility model provides a turbidity monitor with a stray light elimination structure.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] The turbidity monitor with a stray light elimination structure comprises a monitoring cavity and a detection component, wherein a light source and a light detector are arranged on the detection component, and the characteristic is that a light extinction hole is arranged in the monitoring cavity, and the light emitted by the light source can irradiate into the light extinction hole.
[0006] The detection component is provided with a first surface and a second surface perpendicular to the first surface, the light source is arranged on the first surface, and the light detector is arranged on the second surface.
[0007] The light source is directly opposite to the opening of the extinction hole.
[0008] The hole wall of the matting hole is provided with a plurality of thread-shaped convex ridge structures.
[0009] The extinction hole is an inverted cone structure with a small hole opening and a large hole bottom.
[0010] The hole walls of the matt holes are coated with matt paint.
[0011] The inner wall of the monitoring cavity is coated with matte paint.
[0012] An inner tube is arranged on the bottom surface of the monitoring cavity, and the extinction hole is the tube hole of the inner tube.
[0013] The beneficial effect of the utility model is as follows: the utility model is provided with an extinction hole in the monitoring cavity, and the light emitted by the light source can be irradiated into the extinction hole. The light is absorbed by being refracted and reflected multiple times on the inner wall of the extinction hole, thereby preventing excess light from being reflected upward into the monitoring cavity and affecting the detection result, thereby improving the accuracy of the detection result. The above structure is simple and easy to design and manufacture. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0015] Figure 1 It is an assembly structure diagram of the utility model;
[0016] Figure 2 It is an exploded structural diagram of the utility model. DETAILED DESCRIPTION
[0017] The advantages and features of the present disclosure and its implementation methods will be explained by the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be embodied in different forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be comprehensive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is limited only by the scope of the claims.
[0018] The shapes, sizes, ratios, angles and numbers disclosed in the drawings for describing the embodiments of the present disclosure are examples only, and therefore the present disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, when the detailed description of the relevant known functions or configurations is determined to be unnecessary to blur the focus of the present disclosure, the detailed description will be omitted. In the case of using "including", "having" and "comprising" described in this specification, other parts may be added unless "only" is used. Unless otherwise indicated, the terms in the singular may include plural forms.
[0019] When explaining an element, although not explicitly described, the element is understood to include a range of error.
[0020] When describing a positional relationship, for example, when the positional relationship is described as "on," "above," "below," and "adjacent to," unless "immediately" or "directly" is used, one or more parts may be arranged between two other parts.
[0021] When describing a time relationship, for example, when a time sequence is described as “after,” “subsequently,” “next,” and “before,” discontinuous cases may be included unless “just” or “directly” is used.
[0022] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.
[0023] As those skilled in the art can fully understand, the features of the different embodiments of the present disclosure can be coupled or combined with each other in part or in whole, and can cooperate with each other in various ways and be driven technically. The embodiments of the present disclosure can be performed independently of each other, or can be performed together in a mutually dependent relationship.
[0024] Reference Figure 1 , Figure 2 The utility model discloses a turbidity monitor with a stray light elimination structure, including a monitoring cavity 1 and a matching detection component 2, a light source 3 and a light detector 4 are arranged on the detection component 2, and a light extinction hole 5 is arranged in the monitoring cavity 1, and the light emitted by the light source 3 can be irradiated into the light extinction hole 5. Of course, as a preference, the light source 3 is directly opposite to the opening of the light extinction hole 5, so that the light can be completely injected into the light extinction hole 5, and the light is extinguished through the light extinction hole 5 to achieve a good light extinction effect.
[0025] As shown in the figure, the detection component 2 is provided with a surface one and a surface two perpendicular to the surface one, the light source 3 is arranged on the surface one, and the light detector 4 is arranged on the surface two, so that the light detector 4 is arranged perpendicular to the light source 3, and the light detector 4 is located between the light source 3 and the extinction hole 5.
[0026] As shown in the figure, as a further structure, the extinction hole 5 is an inverted cone structure with a small hole mouth and a large hole bottom. The entrance is small and the inner cavity is large, so that the light can be reflected on the inner wall multiple times and the light is absorbed. In this way, it is possible to avoid the light entering the extinction hole 5 from escaping from the hole mouth of the extinction hole 5 again after reflection and being received by the light detector 4, thereby affecting the detection result.
[0027] As a further preferred structure, the hole wall of the extinction hole 5 is provided with a plurality of threaded ridge structures (not shown in the figure), and the threaded ridges can increase the number of reflections of the light entering the extinction hole 5, thereby increasing the attenuation effect of the light. The ridges are preferably triangular ridges with a triangular cross-section, and the ridges are arranged on the hole wall of the extinction hole 5 like threads.
[0028] Of course, as a further preferred structure, the wall of the matting hole 5 is coated with matting paint; the inner wall of the monitoring cavity 1 is coated with matting paint, which can greatly increase the light absorption effect, thereby improving the matting efficiency and making the detection result more accurate. The matting paint is purchased from the prior art, so its specific composition is not described in detail.
[0029] As shown in the figure, an inner tube is provided on the bottom surface of the monitoring cavity 1, and the matting hole 5 is the tube hole of the inner tube. The inner tube of the above structure can be integrally injection molded with the monitoring cavity 1, so it is easy to process and manufacture.
[0030] The turbidity monitor with a stray light elimination structure provided by an embodiment of the utility model is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of the utility model; at the same time, for general technicians in this field, according to the idea of the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.
Claims
1. A turbidity monitor with a stray light elimination structure, comprising a monitoring cavity and a detection component, wherein a light source and a light detector are arranged on the detection component, and the characteristics are: A light extinction hole is arranged in the monitoring cavity, and the light emitted by the light source can be irradiated into the light extinction hole.
2. The turbidity monitor with stray light elimination structure according to claim 1, characterized in that: The detection component is provided with a first surface and a second surface perpendicular to the first surface, the light source is arranged on the first surface, and the light detector is arranged on the second surface.
3. The turbidity monitor with stray light elimination structure according to claim 1, characterized in that: The light source is directly opposite to the opening of the extinction hole.
4. The turbidity monitor with stray light elimination structure according to claim 1, characterized in that: The hole wall of the matting hole is provided with a plurality of thread-shaped convex ridge structures.
5. The turbidity monitor with stray light elimination structure according to claim 1, characterized in that: The extinction hole is an inverted cone structure with a small hole opening and a large hole bottom.
6. The turbidity monitor with stray light elimination structure according to claim 1, characterized in that: The hole walls of the matt holes are coated with matt paint.
7. The turbidity monitor with stray light elimination structure according to claim 1, characterized in that: The inner wall of the monitoring cavity is coated with matte paint.
8. The turbidity monitor with stray light elimination structure according to claim 1, characterized in that: An inner tube is arranged on the bottom surface of the monitoring cavity, and the extinction hole is the tube hole of the inner tube.