A laser crystal rod transmission and absorption test tool

Abstract

The utility model discloses a laser crystal rod transmission and absorption test fixture, comprising a bottom plate and a grating fixture, wherein the grating fixture is detachably connected to the bottom plate, and an arc groove for supporting the laser crystal rod is provided on the grating fixture; and aperture holes coaxial with the product to be tested are respectively provided at both ends of the grating fixture. The utility model can quickly and accurately test the transmission and absorption of the crystal rod, and the self-positioning of the product can be ensured by setting two aperture holes coaxially with the product to be tested through the arc groove, so as to ensure that the test light source is completely received by the detector through the crystal rod.

Description

Technical Field

[0001] The utility model relates to the technical field of crystal testing devices, in particular to a laser crystal rod penetration absorption testing tool. Background Art

[0002] Laser crystal rods are affected by their own size and length, and there are few matching test fixtures on the market. Currently, the commonly used method for testing is to install an aperture on the original transmission fixture for testing. The length of the laser rod is limited to within 30mm, and it is placed to protect the end face and cannot be in direct contact with the fixture. This makes it easy for the placement angle to deviate, resulting in poor repeatability of the test results for the same product, thus affecting the final judgment. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a laser crystal rod transmission and absorption test fixture, which can quickly and accurately test the transmission and absorption of the crystal rod. The arc groove and the two aperture holes coaxially arranged with the tested product can ensure the self-positioning of the product and ensure that the test light source is completely received by the detector through the crystal rod.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A laser crystal rod transmission absorption test fixture, comprising a base plate and a grating fixture, wherein the grating fixture is detachably connected to the base plate, and the grating fixture is provided with an arc groove for supporting the laser crystal rod;

[0006] Both ends of the grating fixture are respectively provided with aperture holes coaxial with the product to be tested.

[0007] Furthermore, the grating jig is detachably connected to the base plate via a fixing jig, and the fixing jig comprises two fixing boxes, each of which is provided with a T-shaped slot, and each of the two fixing boxes is provided with a light-through hole.

[0008] Furthermore, the fixing box is fixed to the base plate by bolts.

[0009] Furthermore, the grating fixture includes a first vertical plate and a first horizontal plate, the first vertical plate and the first horizontal plate are in a T-shaped structure, and the first vertical plate is adapted to the T-shaped slot.

[0010] Furthermore, the grating fixture includes a second horizontal plate and two second vertical plates, the two second vertical plates are arranged at both ends of the second horizontal plate, the two second vertical plates and the second horizontal plate form an I-shaped structure, and the two vertical plates are respectively plugged into the T-slots on the two fixing boxes.

[0011] Furthermore, the second horizontal plate is provided with a through hole with a vertical axis.

[0012] Furthermore, the two second vertical plates and the second horizontal plate are an integrated structure.

[0013] Furthermore, a base is fixedly provided on the bottom plate, a threaded hole penetrating the bottom plate is provided on the base, and the fixing box is fixed to the bottom plate via bolts and the threaded hole.

[0014] Furthermore, the aperture hole is a circular hole or a square hole.

[0015] The beneficial effects of the utility model are:

[0016] 1) The utility model can quickly and accurately test the transmission and absorption of the crystal rod. The arc groove and the two aperture holes coaxially arranged with the tested product can ensure the self-positioning of the product and ensure that the test light source is completely received by the detector through the crystal rod.

[0017] 2) The use of this fixture can reduce the requirements for the skills of testers and significantly improve the test efficiency; the placement and adjustment time during previous tests was 20S~30S, while the placement time of the fixture of the present invention is about 5S, which is improved by more than 75%; the product is easy to place, and the angle and light-through position can be adjusted without any adjustment.

[0018] 3) The grating fixture of the utility model is easy to disassemble and assemble, and can be quickly replaced according to the size of the sample to be measured.

[0019] 4) The test length range is increased from the existing 0~30mm to 0~85mm (the interval between the two fixed boxes is greater than 90mm), which has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of a laser crystal rod transmission absorption test fixture in an embodiment of the utility model;

[0021] Figure 2 A three-dimensional diagram of a fixed fixture;

[0022] Figure 3 This is a schematic diagram of the structure of the grating fixture in Example 1 of the utility model;

[0023] Figure 4 is a top view of the base;

[0024] Figure 5 This is a schematic diagram of the structure of the grating fixture in Example 2 of the utility model;

[0025] In the figure, 1, bottom plate; 2, grating fixture; 3, arc groove; 4, aperture hole; 5, fixing fixture; 6, T-shaped groove; 7, light hole; 8, first vertical plate; 9, first horizontal plate; 10, second horizontal plate; 11, second vertical plate; 12, through hole; 13, base; 14, sample to be tested; 15, fixing box. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0028] Embodiment 1:

[0029] like Figure 1-Figure 4 As shown, a laser crystal rod transmission absorption test fixture comprises a base plate 1 and a grating fixture 2, wherein the grating fixture 2 is detachably connected to the base plate 1, and an arc groove 3 for supporting the laser crystal rod is provided on the grating fixture 2;

[0030] Both ends of the grating fixture 2 are provided with aperture holes 4 coaxial with the product to be measured.

[0031] The grating fixture 2 is detachably connected to the base plate 1 via a fixing fixture 5 . The fixing fixture 5 includes two fixing boxes 15 . The fixing boxes 15 are provided with T-shaped slots 6 . The two fixing boxes 15 are respectively provided with light holes 7 .

[0032] The fixing box 15 is fixed to the base plate 1 by bolts.

[0033] The grating fixture 2 includes a first vertical plate 8 and a first horizontal plate 9, wherein the first vertical plate 8 and the first horizontal plate 9 are in a T-shaped structure, and the first vertical plate 8 is adapted to the T-shaped groove 6. The aperture hole 4 is arranged on the first vertical plate 8, and the arc groove 3 is arranged on the first horizontal plate 9.

[0034] The base 13 is fixedly provided on the bottom plate 1, and the base 13 is provided with a threaded hole penetrating the bottom plate 1, and the fixing box 15 is fixed to the bottom plate 1 through bolts and threaded holes. Such a setting is convenient for storage and transportation after the tooling is disassembled as a whole.

[0035] The aperture hole 4 is a circular hole or a square hole. In this embodiment, it is a circular hole. Figure 3 .

[0036] The bottom plate 1 is provided with bolt fixing holes for fixing the tooling as a whole to the test chamber.

[0037] Working principle: During the test, the tool fixes the bottom plate 1 in the test chamber of the UV-1800 ultraviolet spectrophotometer through the bolt fixing holes.

[0038] Select a suitable grating fixture 2 and fix it on the fixing fixture 5 (the fixing process of the two is to slide the first vertical plate 8 into the T-slot 6), close the test chamber door, set the test conditions, and perform baseline calibration first.

[0039] After the calibration is completed, the sample 14 to be tested is placed in the arc groove 3 of the grating fixture 2 for spectroscopic testing. The grating fixture 2 is detachably connected to the base plate 1 and can be replaced according to the size of the sample 14 to be tested.

[0040] The utility model can quickly and accurately test the transmission and absorption of the crystal rod, and can ensure the self-positioning of the product by arranging two aperture holes 4 coaxially with the product to be tested through the arc groove 3, so as to ensure that the test light source is completely received by the detector through the crystal rod.

[0041] Embodiment 2:

[0042] like Figure 1 and Figure 5 As shown, the difference between this embodiment and embodiment 1 is that the grating fixture 2 includes a second horizontal plate 10 and two second vertical plates 11, the two second vertical plates 11 are arranged at both ends of the second horizontal plate 10, the two second vertical plates 11 and the second horizontal plate 10 form an I-shaped structure, and the two vertical plates are respectively plugged into the T-slots 6 on the two fixing boxes 15.

[0043] Different grating fixtures 2 are used to test different samples to be tested. This embodiment is used to test a relatively long cylindrical crystal rod.

[0044] Furthermore, a through hole 12 with a vertical axis is provided on the second horizontal plate 10. The through hole 12 is provided to facilitate the taking and placing of the crystal rod.

[0045] Furthermore, the two second vertical plates 11 and the second horizontal plate 10 are an integrated structure. The second vertical plates and the second horizontal plate can be welded together or directly formed into one piece.

[0046] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A laser crystal rod transmission absorption test tool, characterized in that: It comprises a base plate and a grating fixture, wherein the grating fixture is detachably connected to the base plate, and the grating fixture is provided with an arc groove for supporting the laser crystal rod; Both ends of the grating fixture are respectively provided with aperture holes coaxial with the product to be tested.

2. The laser crystal rod transmission absorption test tool according to claim 1, characterized in that: The grating fixture is detachably connected to the base plate via a fixing fixture, and the fixing fixture comprises two fixing boxes, each of which is provided with a T-shaped slot, and each of the two fixing boxes is provided with a light-through hole.

3. The laser crystal rod transmission absorption test tool according to claim 2, characterized in that: The fixing box is fixed to the bottom plate by bolts.

4. The laser crystal rod transmission absorption test tool according to claim 2, characterized in that: The grating fixture includes a first vertical plate and a first horizontal plate, the first vertical plate and the first horizontal plate are in a T-shaped structure, and the first vertical plate is adapted to the T-shaped slot.

5. The laser crystal rod transmission absorption test tool according to claim 2, characterized in that: The grating fixture includes a second horizontal plate and two second vertical plates, the two second vertical plates are arranged at both ends of the second horizontal plate, the two second vertical plates and the second horizontal plate form an I-shaped structure, and the two vertical plates are respectively plugged into the T-slots on the two fixing boxes.

6. The laser crystal rod transmission absorption test tool according to claim 5, characterized in that: The second horizontal plate is provided with a through hole with a vertical axis.

7. The laser crystal rod transmission absorption test tool according to claim 5, characterized in that: The two second vertical plates and the second horizontal plate are an integrated structure.

8. The laser crystal rod transmission absorption test tool according to claim 3, characterized in that: A base is fixedly arranged on the bottom plate, a threaded hole penetrating the bottom plate is arranged on the base, and the fixing box is fixed to the bottom plate via bolts and the threaded hole.

9. The laser crystal rod transmission absorption test tool according to claim 1, characterized in that: The aperture hole is a circular hole or a square hole.

Images