An optical instrument capable of measuring small quantities of liquid

Abstract

This utility model discloses an optical instrument for measuring trace amounts of liquid, including a linear motor assembly, an incident optical fiber, and an operating platform. The linear motor assembly controls the height of the end of the incident optical fiber. A light source is provided at the front end of the incident optical fiber. A photometric channel coaxial with the incident optical fiber is provided on the side wall of the operating platform. A flip plate is movably fitted on the operating platform. A light-shielding ring is provided on the side wall of the flip plate. A plane mirror assembly and a receiver located above the plane mirror assembly are provided on the side wall of the flip plate. This utility model can prevent external stray light from entering the measurement channel, avoiding the influence of stray light on the measurement. In addition, it reduces the beam path and reduces the energy consumption of the beam, thus improving the measurement results and making them more stable and accurate.

Description

Technical Field

[0001] This utility model relates to the field of optical instrument technology, specifically to an optical instrument capable of measuring trace amounts of liquid. Background Technology

[0002] Current optical instruments for measuring trace amounts of liquids expose the droplet to air during measurement without any light-shielding mechanism. This allows stray light to enter the optical fiber and eventually reach the receiver, affecting the measurement results. Furthermore, the optical path length for liquid measurement cannot be varied or the variation distance is fixed, which means some liquids may be unmeasurable or measured inaccurately. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0004] In view of the problems existing in the use of the above and / or optical instruments that can measure trace amounts of liquid, this utility model is proposed.

[0005] Therefore, the purpose of this invention is to provide an optical instrument that can measure trace amounts of liquid, which can prevent external stray light from entering the measurement channel and avoid the stray light from affecting the measurement. In addition, it reduces the beam path and reduces the energy consumption of the beam, thereby improving the measurement results and making them more stable and accurate.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0007] An optical instrument capable of measuring trace amounts of liquid, comprising:

[0008] A linear motor assembly for controlling the height of the end of the incident optical fiber;

[0009] An incident optical fiber, wherein a light source is provided at the front end of the incident optical fiber;

[0010] The operating table has a photometric channel coaxial with the incident optical fiber on its side wall. The operating table is movably fitted with a flip plate. The side wall of the flip plate is provided with a light-shielding ring. The side wall of the flip plate is provided with a plane mirror assembly and a receiver located above the plane mirror assembly.

[0011] As a preferred embodiment of the optical instrument for measuring trace amounts of liquid described in this utility model, the linear motor assembly includes a motor mounting plate, a motor bracket, an optical fiber fixing clamp, a linear motor, and a linear slide rail. The linear motor is mounted on the side wall of the motor mounting plate via the motor bracket. The motor bracket and the linear slide rail are fixedly connected to the bottom of the operating table. The optical fiber fixing clamp secures the incident optical fiber to the slider side wall of the linear slide rail.

[0012] In a preferred embodiment of the optical instrument for measuring trace amounts of liquid described in this utility model, the output end of the linear motor is fixedly connected to the side wall of the slider of the linearized track.

[0013] In a preferred embodiment of the optical instrument for measuring trace amounts of liquid described in this utility model, the front end cross-section of the incident optical fiber is arranged perpendicularly to the emitting end of the light source.

[0014] As a preferred embodiment of the optical instrument for measuring trace amounts of liquid described in this utility model, the optical measurement channel is provided with a transparent plate that carries the liquid to be measured.

[0015] As a preferred embodiment of the optical instrument for measuring trace amounts of liquid described in this utility model, the side wall of the operating table is provided with a bearing seat, the flip plate is movably engaged with the bearing seat, and the plane mirror assembly includes a mirror base mounted on the side wall of the flip plate and a plane mirror.

[0016] In a preferred embodiment of the optical instrument for measuring trace amounts of liquid described in this utility model, a nut is provided on the side wall of the flap, the nut is movably engaged with an adjusting screw, and the bottom end of the adjusting screw rests against the top of the operating table.

[0017] Compared with the prior art, the advantages of this utility model are: this optical instrument that can measure trace amounts of liquid can prevent external stray light from entering the measurement channel and avoid the stray light from affecting the measurement. In addition, it reduces the beam path and reduces the energy consumption of the beam, thus improving the measurement results and making them more stable and accurate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of an optical instrument capable of measuring trace amounts of liquid according to the present invention.

[0020] Figure 2 This is a schematic diagram of the flip-plate structure of an optical instrument capable of measuring trace amounts of liquid according to the present invention.

[0021] 1. Linear motor assembly; 2. Incident optical fiber; 3. Operating table; 4. Flip plate; 5. Adjusting screw; 6. Light shield; 7. Plane mirror assembly; 8. Receiver; 9. Light source. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure will not be enlarged to scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] This invention provides an optical instrument for measuring trace amounts of liquid. It can prevent stray light from entering the measurement channel and avoid the influence of stray light on the measurement. In addition, it reduces the beam path and reduces the energy consumption of the beam, thereby improving the measurement results and making them more stable and accurate.

[0026] Figures 1-2 The diagram shown is a structural schematic of one embodiment of an optical instrument for measuring trace amounts of liquid according to this invention. Please refer to [link / reference]. Figures 1-2 The optical instrument of this embodiment, which can measure trace amounts of liquid, includes a linear motor assembly 1, an incident optical fiber 2, and an operating table 3.

[0027] The linear motor assembly 1 controls the height of the slider by using a linear motor, thereby adjusting the distance between the incident optical fiber 2 and the measuring liquid. This reduces the beam path and energy consumption, resulting in improved, more stable, and accurate measurement results. Specifically, the linear motor assembly 1 is used to control the height of the end of the incident optical fiber 2. In this embodiment, the linear motor assembly 1 includes a motor mounting plate, a motor bracket, an optical fiber fixing clamp, a linear motor, and a linear slide rail. The linear motor is mounted on the side wall of the motor mounting plate via the motor bracket. The motor bracket and the linear slide rail are fixedly connected to the bottom of the operating table 3. The optical fiber fixing clamp secures the incident optical fiber 2 to the slider side wall of the linear slide rail. The output end of the linear motor is fixedly connected to the slider side wall of the linear track.

[0028] The incident optical fiber 2 emits a stable light beam through the light source 9. The incident light enters from the front end and exits from the rear end. Specifically, the light source 9 is provided at the front end of the incident optical fiber 2. In this embodiment, the cross-section of the front end of the incident optical fiber 2 is perpendicular to the emitting end of the light source 9.

[0029] The operating platform 3 is shielded by a light-shielding ring 6 to avoid interference from external stray light and improve measurement accuracy. The adjusting screw 5 and nut are engaged to adjust the flap 4 to be parallel to the operating platform 3. Specifically, the side wall of the operating platform 3 is provided with a photometric channel coaxial with the incident optical fiber 2. The operating platform 3 is movably fitted with the flap 4. The side wall of the flap 4 is provided with a light-shielding ring 6. The side wall of the flap 4 is provided with a plane mirror assembly 7 and a receiver 8 located above the plane mirror assembly 7. In this embodiment, a transparent plate for carrying the measuring liquid is provided inside the photometric channel. The side wall of the operating platform 3 is provided with a bearing seat. The flap 4 is movably fitted with the bearing seat. The plane mirror assembly 7 includes a mirror base mounted on the side wall of the flap 4 and a plane mirror. The side wall of the flap 4 is provided with a nut. The nut is movably fitted with the adjusting screw 5. The bottom end of the adjusting screw 5 rests against the top of the operating platform 3.

[0030] Combination Figures 1-2 This embodiment describes an optical instrument for measuring trace amounts of liquid. The specific usage process is as follows: During use, the light source 99 emits a stable light beam that enters the incident optical fiber 22. The linear motor assembly 11 drives the incident optical fiber 22 to move up and down, adjusting the measurement optical path distance to measure more different types and concentrations of sample liquids. Then, the light beam exits from the incident optical fiber 22, passes through the measured liquid, and then through the light-shielding ring 66 and the plane mirror assembly 77. The light-shielding ring 66 blocks external light, preventing it from entering the measurement channel and causing various stray lights that could affect the measurement results. With the light-shielding ring 66 installed, the measurement data is free from interference, resulting in greater accuracy and stability. Finally, the light beam passes through the plane mirror assembly 77 and directly enters the receiver 88, completing the measurement. Reducing the beam path and energy consumption improves the measurement results, making them more stable and accurate.

[0031] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An optical instrument capable of measuring a small amount of liquid, characterized by, include: A linear motor assembly (1) is used to control the height of the end of the incident optical fiber (2); An incident optical fiber (2) is provided with a light source (9) at its front end; The operating table (3) has a photometry channel coaxial with the incident optical fiber (2) on its side wall. The operating table (3) is movably fitted with a flip plate (4). The flip plate (4) has a light shield (6) on its side wall. The flip plate (4) has a plane mirror assembly (7) and a receiver (8) located above the plane mirror assembly (7).

2. The optical instrument for measuring trace amounts of liquid according to claim 1, characterized in that, The linear motor assembly (1) includes a motor mounting plate, a motor bracket, an optical fiber fixing clamp, a linear motor, and a linear slide rail. The linear motor is mounted on the side wall of the motor mounting plate through the motor bracket. The motor bracket and the linear slide rail are fixedly connected to the bottom of the operating table (3). The optical fiber fixing clamp fastens the incident optical fiber (2) to the slider side wall of the linear slide rail.

3. An optical instrument for measuring trace amounts of liquid according to claim 2, characterized in that, The output end of the linear motor is fixedly connected to the side wall of the slider of the linear track.

4. An optical instrument for measuring trace amounts of liquid according to claim 3, characterized in that, The front end cross section of the incident optical fiber (2) is set perpendicular to the emitting end of the light source (9).

5. An optical instrument for measuring trace amounts of liquid according to claim 4, characterized in that, The photometric channel is equipped with a transparent plate that holds the measuring liquid.

6. An optical instrument for measuring trace amounts of liquid according to claim 5, characterized in that, The side wall of the operating table (3) is provided with a bearing seat, the flip plate (4) is movably engaged with the bearing seat, and the plane mirror assembly (7) includes a mirror seat installed on the side wall of the flip plate (4) and a plane mirror.

7. An optical instrument for measuring trace amounts of liquid according to claim 6, characterized in that, The side wall of the flip plate (4) is provided with a nut, which is movably engaged with the adjusting screw (5), and the bottom end of the adjusting screw (5) rests against the top of the operating table (3).

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