Transflective cross-linked polyethylene spectral measurement device

Abstract

The utility model provides a transflective cross-linked polyethylene spectral measurement device and relates to the technical field of spectral measurement devices. The transflective crosslinked polyethylene spectral measurement device comprises a sample body, a probe upper part is arranged on one side of the sample body, a diffuse reflection plate is arranged on the left side of a slot in the probe upper part, a window sheet is fixedly connected to the rear side of the diffuse reflection plate, a pressing plate is fixedly connected to one side of the probe upper part, and a sliding block is fixedly connected to the middle of the probe upper part. A handle is fixedly connected to the top of the sliding block, a limiting spring is arranged on one side of the sliding block, and a spring locking block is arranged on one side of the limiting spring. According to the transflective cross-linked polyethylene spectrum measurement device, the sample body can be compacted and fixed, the spectrum repeatability can be improved through multiple times of collection, the sample body is transmitted to a computer through a signal line, light penetrates through the sample body to act, after action, the light returns through a diffuse reflection plate to act again, and the spectrum subjected to multiple times of action carries more abundant sample characteristic information.

Description

Technical Field

[0001] The utility model relates to a spectrum measuring device, in particular to a transflective cross-linked polyethylene spectrum measuring device, belonging to the technical field of spectrum measuring devices. Background Art

[0002] Cross-linked polyethylene insulated cable is a kind of cable suitable for distribution network and other fields. The cross-linked polyethylene insulation material inside has advantages that PVC insulation material cannot match. It has a simple structure, light weight, good heat resistance, strong load capacity, no melting, chemical corrosion resistance, and high mechanical strength. The structure of the cable is mainly composed of three parts: sheath layer, insulation layer, and core. As the pressurization time increases, the leakage current decreases and tends to a stable value; for cables with poor insulation, the leakage current quickly tends to a stable value, and the value after stabilization is very close to the initial value; when there are serious defects in the insulation, the leakage current does not decrease with time, but instead shows an upward trend. If the pressurization time is extended or the DC voltage is increased, the trend of increasing leakage current may continue to develop until the insulation breaks down. There are many types of materials for the insulation layer on the market, so indicator detection is extremely important during use.

[0003] The existing national standard detection methods all use chemical and physical methods for detection. The detection process is cumbersome and destructive. The detection of multiple indicators requires a large number of personnel and equipment. The comprehensive evaluation and detection time is delayed and the cost is high. Therefore, it is necessary to design and develop a spectral acquisition device for measuring cable insulation. The device can meet the requirements of on-site, rapid, in-situ, non-destructive measurement, simple operation, and one device can measure multiple indicators. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The purpose of the utility model is to provide a transflective cross-linked polyethylene spectrum measuring device in order to solve the above problems, so as to solve the problems that the detection methods in the prior art all use chemical and physical methods for detection, the detection process is cumbersome and destructive, the detection of multiple indicators requires a large number of personnel and equipment, the comprehensive evaluation detection time is delayed, and the cost is high.

[0006] (II) Technical solution

[0007] The utility model is realized through the following technical scheme: a transflective cross-linked polyethylene spectrum measuring device, comprising a sample body, a probe upper part is arranged on one side of the sample body, a diffuse reflection plate is arranged on the left side of the insertion slot of the probe upper part, a window piece is fixedly connected to the rear side of the diffuse reflection plate, a pressure plate is fixedly connected to one side of the probe upper part, the diffuse reflection plate is fixed to the probe upper part through the pressure plate, a slider is fixedly connected to the middle of the probe upper part, a handle is fixedly connected to the top of the slider, a limit spring is arranged on one side of the slider, and a spring locking block is arranged on one side of the limit spring.

[0008] Preferably, the spring locking block is installed at one end of the upper part of the probe and is threadedly connected to the upper part of the probe to support the upper part of the probe, and the main optical fiber is installed in the middle of the spring locking block.

[0009] Preferably, one end of the upper part of the probe is threadedly connected to the lower part of the probe, and the main optical fiber is arranged inside the lower part of the probe to support and protect the main optical fiber.

[0010] Preferably, a wire protection spring is provided at the tail end of the lower part of the probe, and the wire protection spring is spirally connected to the lower part of the probe to limit the main optical fiber.

[0011] Preferably, an optical fiber flange plate is fixedly connected to the outer side of the main optical fiber, and an incident optical fiber and a recovery optical fiber are arranged on one side of the optical fiber flange plate.

[0012] Preferably, one end of the incident optical fiber is connected to an optical path coupler, and a light source is installed outside the optical path coupler.

[0013] Preferably, one end of the recycling optical fiber is connected to an optical platform, and the optical platform includes a slit, a first concave mirror, a collimating mirror, a grating, a second concave mirror, a detector, a spectrum processing module and a signal line. The recycling optical fiber is threadedly connected to the slit, the first concave mirror is installed on the rear side of the slit, the second concave mirror is installed on the grating refractive surface, the detector is arranged on the rear side of the second concave mirror, and the signal line is inserted into the rear end of the spectrum processing module.

[0014] The utility model provides a transflective cross-linked polyethylene spectrum measuring device, which has the following beneficial effects:

[0015] 1. After the sample body of the transflective cross-linked polyethylene spectrum measurement device is sliced, slide the handle to make the handle drive the slider to move. At this time, the slider slides to the right due to the force of the limited position spring, the upper slot of the probe is opened, and the thin sample is inserted. The handle is released, and the slider slides to the left due to the force of the limited position spring. The pressure plate compacts the sample through the internal spring compression structure of the device, so that the sample body can be compacted and fixed. Multiple acquisitions can improve the repeatability of the spectrum.

[0016] 2. In the transflective cross-linked polyethylene spectrum measuring device, the light emitted by the light source is converged to the incident optical fiber by the optical path coupler, the light of the incident optical fiber passes through the window to interact with the sample body and then enters the diffuse reflection plate, the diffuse reflection plate returns the light to interact with the sample body again, and then passes through the window to enter the recovery optical fiber, the light with sample information enters the slit through the recovery optical fiber, after entering the slit, the light is reflected by the first concave mirror and projected onto the grating through the collimator, the grating is split and reflected to the detector through the second concave mirror, the detector converts the optical signal into an electrical signal, and then becomes a digital signal through the spectrum processing module, and is transmitted to the computer through the signal line, the light passes through the sample body to interact, and then returns through the diffuse reflection plate to interact again, and the spectrum after multiple interactions carries richer sample feature information. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0019]

Main component symbol description

[0020] 1. Sample body; 2. Diffuse reflection plate; 3. Press plate; 4. Window; 5. Slider; 6. Handle; 7. Limit spring; 8. Upper part of probe; 9. Spring locking block; 10. Lower part of probe; 11. Wire protection spring; 12. Main optical fiber; 13. Optical fiber flange plate; 14. Incident optical fiber; 15. Optical path coupler; 16. Light source; 17. Recovering optical fiber; 18. Optical platform; 1801. Slit; 1802. First concave mirror; 1803. Collimator; 1804. Grating; 1805. Second concave mirror; 1806. Detector; 1807. Spectral processing module; 1808. Signal line. DETAILED DESCRIPTION

[0021] The embodiment of the utility model provides a transflective cross-linked polyethylene spectrum measuring device.

[0022] See also Figure 1 and Figure 2, including a sample body 1, a probe upper part 8 is arranged on one side of the sample body 1, a diffuse reflection plate 2 is arranged on the left side of the probe upper part 8 insertion slot, a window sheet 4 is fixedly connected to the rear side of the diffuse reflection plate 2, a pressure plate 3 is fixedly connected to one side of the probe upper part 8, the diffuse reflection plate 2 is fixed to the probe upper part 8 through the pressure plate 3, a slider 5 is fixedly connected to the middle of the upper part of the probe upper part 8, a handle 6 is fixedly connected to the top of the slider 5, a limit spring 7 is arranged on one side of the slider 5, a spring locking block 9 is arranged on one side of the limit spring 7, the spring locking block 9 is installed at one end of the probe upper part 8 and is threadedly connected to the probe upper part 8 to support the probe upper part 8, a main optical fiber 12 is installed in the middle of the spring locking block 9, one end of the probe upper part 8 is threadedly connected to the probe lower part 10, the main optical fiber 12 is arranged inside the probe lower part 10 to support and protect the main optical fiber 12, and a wire protection spring 11 is arranged at the tail end of the probe lower part 10, and the wire protection spring 11 is spirally connected to the probe lower part 10 The main optical fiber 12 is connected to a fiber optic flange plate 13 fixedly connected to the outside of the main optical fiber 12, an incident optical fiber 14 and a recycling optical fiber 17 are arranged on one side of the fiber optic flange plate 13, one end of the incident optical fiber 14 is connected to an optical path coupler 15, a light source 16 is installed on the outside of the optical path coupler 15, one end of the recycling optical fiber 17 is connected to an optical platform 18, the optical platform 18 includes a slit 1801, a first concave mirror 1802, a collimating mirror 1803, a grating 1804, a second concave mirror 1805, a detector 1806, a spectrum processing module 1807 and a signal line 1808, the recycling optical fiber 17 is threadedly connected to the slit 1801, the first concave mirror 1802 is installed at the rear side of the slit 1801, the second concave mirror 1805 is installed on the refractive surface of the grating 1804, the detector 1806 is arranged at the rear side of the second concave mirror 1805, and the signal line 1808 is inserted into the rear end of the spectrum processing module 1807.

[0023] When the utility model is in use: after the sample body 1 is sliced, the sliding handle 6 is slid to make the handle 6 drive the slider 5 to move. At this time, the slider 5 slides to the right due to the force of the limiting spring 7, the slit of the upper part 8 of the probe is opened, and the thin slice sample is inserted. The handle 6 is released, and the slider 5 slides to the left due to the force of the limiting spring 7, and the pressing plate 3 compacts the sample.

[0024] The light emitted by the light source 16 is converged to the incident optical fiber 14 by the optical path coupler 15. The light from the incident optical fiber 14 passes through the window 4 and interacts with the sample body 1 and then enters the diffuse reflection plate 2. The diffuse reflection plate 2 then returns the light and interacts with the sample body 1 again, and then passes through the window 4 to enter the recovery optical fiber 17. The light carrying the sample information enters the slit 1801 through the recovery optical fiber 17. After entering the slit 1801, the light is reflected by the first concave mirror 1802 and passes through the collimator 1803 to be projected onto the grating 1804. After the grating 1804 splits the light, it is reflected by the second concave mirror 1805 to the detector 1806. The detector 1806 converts the optical signal into an electrical signal, which is then converted into a digital signal through the spectrum processing module 1807 and transmitted to the computer through the signal line 1808.

[0025] The cross-linked polyethylene is located in the middle of the cable. It is a white solid when not cut. The light source 16 cannot directly irradiate and collect a spectrum with good repeatability. When it is sliced ​​into thin slices, it is a transparent solid. In this state, a slotted measurement device is designed, and a diffuse reflection plate 2 is provided on the back of the sample. First, the light passes through the sample body 1 and acts again through the diffuse reflection plate 2. After the action, the spectrum after multiple actions carries more abundant sample feature information. Second, the sample body 1 can be compacted and fixed through the spring compression structure inside the device, and multiple collections can improve the repeatability of the spectrum.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A transflective cross-linked polyethylene spectrum measurement device, comprising a sample body (1), characterized in that: A probe upper part (8) is arranged on one side of the sample body (1); a diffuse reflection plate (2) is arranged on the left side of the slot of the probe upper part (8); a window sheet (4) is fixedly connected to the rear side of the diffuse reflection plate (2); a pressure plate (3) is fixedly connected to one side of the probe upper part (8); the diffuse reflection plate (2) is fixed to the probe upper part (8) via the pressure plate (3); a slider (5) is fixedly connected to the middle of the upper part of the probe upper part (8); a handle (6) is fixedly connected to the top of the slider (5); a limit spring (7) is arranged on one side of the slider (5); a spring locking block (9) is arranged on one side of the limit spring (7).

2. The transflective cross-linked polyethylene spectrum measuring device according to claim 1, characterized in that: The spring locking block (9) is installed at one end of the probe upper part (8) and is threadedly connected to the probe upper part (8), and a main optical fiber (12) is installed in the middle of the spring locking block (9).

3. The transflective cross-linked polyethylene spectrum measuring device according to claim 2, characterized in that: One end of the probe upper part (8) is threadedly connected to the probe lower part (10), and the main optical fiber (12) is arranged inside the probe lower part (10).

4. The transflective cross-linked polyethylene spectrum measuring device according to claim 3, characterized in that: A wire protection spring (11) is provided at the tail end of the lower part (10) of the probe, and the wire protection spring (11) is spirally connected to the lower part (10) of the probe.

5. The transflective cross-linked polyethylene spectrum measuring device according to claim 2, characterized in that: An optical fiber flange plate (13) is fixedly connected to the outside of the main optical fiber (12), and an incident optical fiber (14) and a recovery optical fiber (17) are arranged on one side of the optical fiber flange plate (13).

6. The transflective cross-linked polyethylene spectrum measuring device according to claim 5, characterized in that: One end of the incident optical fiber (14) is connected to an optical path coupler (15), and a light source (16) is installed outside the optical path coupler (15).

7. The transflective cross-linked polyethylene spectrum measuring device according to claim 6, characterized in that: One end of the recycling optical fiber (17) is connected to an optical platform (18), and the optical platform (18) comprises a slit (1801), a first concave mirror (1802), a collimating mirror (1803), a grating (1804), a second concave mirror (1805), a detector (1806), a spectrum processing module (1807) and a signal line (1808). The recycling optical fiber (17) is threadedly connected to the slit (1801), the first concave mirror (1802) is installed at the rear side of the slit (1801), the second concave mirror (1805) is installed on the refractive surface of the grating (1804), the detector (1806) is arranged at the rear side of the second concave mirror (1805), and the signal line (1808) is inserted into the rear end of the spectrum processing module (1807).

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