CN215727732U

CN215727732U - Z0 cuts seed crystal polarity detection device

Info

Publication number: CN215727732U
Application number: CN202121644368.3U
Authority: CN
Inventors: 于钦涛; 权伟利
Original assignee: Beijing Crystal Photoelectric Science & Technology Inc
Current assignee: Beijing Crystal Photoelectric Science & Technology Inc
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-02-01
Anticipated expiration: 2031-07-19

Abstract

A Z0 cut seed crystal polarity detection device comprises a dark box, wherein a lamp is arranged in the dark box, an opening is formed in the upper portion of the dark box, a semitransparent white plate is covered at the opening, and the semitransparent white plate and the dark box form a sealing body; the upper layer of the semitransparent white board is provided with an opaque board, the opaque board is provided with small holes, the opaque boards at two sides of the small holes are respectively provided with a cushion block, and the seed crystal is positioned right above the small holes after being placed on the cushion blocks. Compared with the prior art, the utility model discloses an useful part lies in: 1. the device is made of common materials such as wood, galvanized steel sheets and the like, and has the advantages of simple structure and low cost. 2. The device is simple and convenient to detect the positive and negative X faces of the seed crystal and high in efficiency.

Description

Z0 cuts seed crystal polarity detection device

Technical Field

The utility model relates to the field of artificial quartz crystal seed crystal processing, in particular to a Z0 cut seed crystal polarity detection device.

Background

The artificial quartz crystal culture needs to use seed crystals, when the seed crystals are hung, the negative X surface of the seed crystals needs to face the center of the kettle, and the positive X surface of the seed crystals needs to face the edge of the kettle. The traditional mode utilizes the pressure polarity of polarity tester one by one, judges positive negative X face according to the piezoelectricity characteristic of quartzy, and this kind of test mode efficiency is lower, and the seed crystal is cracked easily. Because the seed crystal is corroded by ammonium bifluoride before use, and the corroded crystal can generate a triangular starburst pattern on a Z surface through small-hole imaging, and each angle of the triangle points to the negative X direction of the seed crystal. The polarity detection work can be made by utilizing the characteristic, and the positive and negative X directions of the seed crystal are judged by the characteristic that a triangle is formed by small hole imaging. The cracks caused by the pressure polarity of the seed crystal are avoided, and the detection efficiency is improved.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problem that the polarity of the Z0 cut seed crystal is inconvenient to detect, the utility model provides a Z0 cut seed crystal polarity detection device.

The purpose of the utility model is realized by adopting the following technical scheme. The polarity detection device for the Z0 cut seed crystal comprises a dark box, wherein a lamp is arranged in the dark box, an opening is formed in the upper part of the dark box, a semitransparent white board is covered at the opening, and a sealing body is formed by the semitransparent white board and the dark box; the upper layer of the semitransparent white board is provided with an opaque board, the opaque board is provided with small holes, the opaque boards at two sides of the small holes are respectively provided with a cushion block, and the seed crystal is positioned right above the small holes after being placed on the cushion blocks.

Furthermore, the camera bellows, the lamp, the semitransparent white board, the opaque board and the cushion block are fixedly connected into a whole.

Furthermore, the lamp is fixedly connected to a box bottom plate at the bottom of the inner side of the camera bellows, a wire is arranged on the box bottom plate, a hole for installing a plug is formed in the side wall of the box body, and the wire is connected with the lamp and the plug.

Furthermore, the inner wall of the opening of the dark box is circumferentially provided with steps, and the semitransparent white plate is embedded on the steps.

Furthermore, the light in the dark box is emitted from the small hole, and the rest parts are not light-transmitting.

Further, the outer edge of the cushion block is aligned with the corresponding edge of the dark box.

Furthermore, the camera bellows is made of wood.

Further, the semitransparent white board is made of Teflon.

Further, the opaque plate is made of galvanized steel.

Furthermore, the cushion blocks are made of wood.

Compared with the prior art, the utility model discloses an useful part lies in: 1. the device is made of common materials such as wood, galvanized steel sheets and the like, and has the advantages of simple structure and low cost. 2. The device is simple and convenient to detect the positive and negative X faces of the seed crystal and high in efficiency.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of one embodiment of a Z0 cut seed crystal polarity detection device of the present invention;

FIG. 2 is a partial cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is an exploded view of fig. 1.

[ reference numerals ]

1-a dark box, 101-a box body, 102-a box bottom plate, 103-a step, 2-a lamp, 201-a plug, 202-a wire, 3-a semi-transparent white board, 4-a galvanized steel plate, 401-a small hole, 5-a cushion block, 6-a seed crystal, 601-a triangular light spot, 602-a positive X surface and 603-a negative X surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An embodiment of the device for detecting the polarity of the Z0 cut seed crystal comprises a dark box 1, a lamp 2, a semitransparent white board 3, an opaque board and a cushion block 5, wherein the dark box 1 is a cuboid box with an open upper part, the dark box 1 is made of common wood, the wall thickness is 10mm, and the dark box is formed by splicing 5 wood boards as shown in figures 1 to 4.

The lamp 2 is arranged on the bottom plate 102 inside the camera bellows 1, and the lamp 5 is a 5W energy-saving lamp in the embodiment. The upper surface of the box bottom plate 102 is provided with a lead 202, a hole is formed in one side surface of the box body 101 close to the bottom for fixing the plug 201, after the plug 201 is fixed, the hole is sealed to ensure light tightness, one end of the lead 202 is connected with the lamp 5, and the other end of the lead 202 is connected with the plug 201.

Step 103 is provided with along circumference in the opening part inner wall in box 101 top of camera bellows 1, is provided with translucent white board 3 on the step 103, covers camera bellows 1's opening to constitute a seal with camera bellows 1, in this embodiment, translucent white board 3's material is teflon, and thickness is 1 mm.

The upper berth of translucent white board 3 is equipped with the opaque board, adopts galvanized steel sheet 4 in this embodiment, and its thickness is 1mm, and the intermediate position is opened there is aperture 401 on the galvanized steel sheet 4, and aperture 401 adopts the drill bit that the diameter is 1mm to drill out, except aperture position department, and the galvanized steel sheet 4 covers translucent white board 3 completely for the light that interior lamp 2 sent can only pass through aperture 401, and in other embodiments, galvanized steel sheet 4 can be replaced by the board of other opaque materials.

Two sides of the small hole 401 on the galvanized steel plate 4 are respectively provided with a cushion block 5, the outer edge of the cushion block 5 is aligned with the edge of the dark box 1, and the cushion block 5 is made of common wood.

After the translucent white board 3, the galvanized steel sheet 4 and the cushion block 5 are arranged in the above order, the translucent white board 3, the galvanized steel sheet 4, the cushion block 5 and the dark box are fixed into a whole, and in this embodiment, the wood nails are used for fixing.

In this inspection apparatus, the overall size of the dark box 1 is 20cm × 7cm × 7cm, and the size of the mat 5 is 10mm × 10mm × 70 mm.

Seed crystal 6 is corroded by ammonium bifluoride saturated solution, then is placed on two backing plates 5, and is located right above the small hole 401, after the energy-saving lamp is powered on, light passes through the semitransparent white plate, then irradiates the seed crystal through the small hole 401, and according to small hole imaging, a triangular light spot 601 is formed on the Z-shaped surface of the seed crystal and can be directly observed through naked eyes. The side corresponding to the tip of the triangle is the negative X side 603 of the seed crystal and the other side is the positive X side 602 of the seed crystal. The device is simple and convenient to detect the positive and negative X faces of the seed crystal and high in efficiency. The device simple manufacture, the material is easy to obtain, convenient operation.

Compared with the traditional mode, the traditional mode is that the piezoelectric principle of the crystal is utilized, external force is applied to the X direction of the seed crystal to generate weak electric signals, the electric signals are amplified through an amplifying circuit and then are transmitted to a microammeter, and the positive and negative X directions are judged according to the swinging direction of a pointer of the microammeter. The equipment needs professional technicians, is complicated to manufacture, the test signal is easily influenced by a power supply, and the seed crystal is easy to crack under the action of external force. Compared with the traditional mode, the polarity detection device does not need complex technology, is convenient to manufacture and is very simple to operate.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a seed crystal polarity detection device is cut to Z0 which characterized in that: the device comprises a dark box, wherein a lamp is arranged in the dark box, an opening is formed above the dark box, a semitransparent white board is covered at the opening, and the semitransparent white board and the dark box form a sealing body; the upper layer of the semitransparent white board is provided with an opaque board, the opaque board is provided with small holes, the opaque boards at two sides of the small holes are respectively provided with a cushion block, and the seed crystal is positioned right above the small holes after being placed on the cushion blocks.

2. The device for detecting the polarity of the Z0 cut seed crystal as claimed in claim 1, wherein: the camera bellows, the lamp, the semitransparent white board, the opaque board and the cushion block are fixedly connected into a whole.

3. The device for detecting the polarity of the Z0 cut seed crystal as claimed in claim 1, wherein: the lamp is fixedly connected to a box bottom plate at the bottom of the inner side of the camera bellows, the box bottom plate is provided with a wire, the side wall of the box body is provided with a hole for installing a plug, and the wire is connected with the lamp and the plug.

4. The device for detecting the polarity of the Z0 cut seed crystal as claimed in claim 1, wherein: the inner wall of the opening of the dark box is circumferentially provided with steps, and the translucent white plate is embedded on the steps.

5. The device for detecting the polarity of the Z0 cut seed crystal as claimed in claim 1, wherein: the light in the camera bellows is emitted from the small hole, and the rest parts are not transparent.

6. The device for detecting the polarity of the Z0 cut seed crystal as claimed in claim 1, wherein: the outer edge of the cushion block is aligned with the corresponding edge of the dark box.

7. The device for detecting the polarity of the Z0 cut seed crystal according to any one of claims 1 to 6, wherein: the camera bellows is made of wood.

8. The device for detecting the polarity of the Z0 cut seed crystal according to any one of claims 1 to 6, wherein: the semitransparent white board is made of Teflon.

9. The device for detecting the polarity of the Z0 cut seed crystal according to any one of claims 1 to 6, wherein: the opaque plate is made of galvanized steel.

10. The device for detecting the polarity of the Z0 cut seed crystal according to any one of claims 1 to 6, wherein: the cushion blocks are made of wood.