CN203785987U - Improved nuclear radiation density detector - Google Patents
Improved nuclear radiation density detector Download PDFInfo
- Publication number
- CN203785987U CN203785987U CN201420079520.1U CN201420079520U CN203785987U CN 203785987 U CN203785987 U CN 203785987U CN 201420079520 U CN201420079520 U CN 201420079520U CN 203785987 U CN203785987 U CN 203785987U
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- fixed
- radioactive source
- gamma
- receiver
- nuclear radiation
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Abstract
The utility model discloses an improved nuclear radiation density detector. The improved nuclear radiation density detector comprises a radioactive source, wherein an irradiation opening of the radioactive source is hinged with three lead barrels; a fixed clamping groove is formed below the radioactive source; a rotary disc is arranged below the fixed clamping groove; the rotary disc is connected with a driving motor through a connection shaft; the driving motor is arranged on a base; fixed parts are arranged between the connection shaft and the driving motor and also arranged between the driving motor and the base; the rotary disc is annularly provided with a plurality of receiver fixed circular discs by taking the circle center as the axis; the rotary disc is at least provided with two gamma-ray receivers; fixed rods are arranged at the bottoms of the receiver fixed circular discs; the fixed rods are provided with a plurality of clamping grooves; connection rods are connected below the receiver fixed circular discs provided with the gamma-ray receivers. According to the improved nuclear radiation density detector, the disadvantages in the prior art can be improved; radiation and receiving angles of gamma rays can be flexibly adjusted according to the shape and the size of an object to be detected; the vibration displacement in the detection process is reduced and the detection precision is improved.
Description
Technical field
The utility model relates to nuclear radiation detection technical field, especially a kind of improved nuclear radiation density detector.
Background technology
The application of radioactive source is penetrated into many aspects of productive life day by day.Utilize radioactive ray to carry out instrumentation, thereby measure, by the radioactive ray application tester of the thickness of instrumentation thing, energy level, density, moisture etc., oneself is known.Chinese utility model patent CN 203178159 U disclose a kind of nuclear radiation density detector, and it is simple in structure, volume is little, safe to use.But, this structure still do not solve that the receiving angle of radioactive source and receiver in prior art is not easy to adjust and adjustment process in the problem of the vibration displacement that brings.
utility model content
The technical problems to be solved in the utility model is to provide a kind of improved nuclear radiation density detector, can solve the deficiencies in the prior art, can adjust flexibly gamma-ray radiation, receiving angle according to the shape size of measured object, and reduce the vibration displacement in testing process, improve accuracy of detection.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
A kind of improved nuclear radiation density detector, comprise radioactive source, the irradiation mouth of described radioactive source is hinged with three leads, three leads evenly arrange round the irradiation mouth center of radioactive source, each lead surface is provided with a chute, and three leads link together by the slip ring being connected on chute, the below of radioactive source is provided with fixed card slot, fixed card slot below is provided with rotating disc, rotating disc is connected with drive motor by coupling shaft, drive motor is arranged on pedestal, between coupling shaft and drive motor, between drive motor and pedestal, be respectively arranged with fixture, rotating disc is taking the center of circle as axle center annular is provided with some row pickup grooves, each pickup groove is made up of several receiver fixed discs, on rotating disc, be at least provided with two gamma-ray receivers, receiver fixed disc bottom is provided with fixed bar, on fixed bar, be provided with several draw-in grooves, be provided with between the fixed bar of receiver fixed disc below of gamma-ray receiver and be connected with connecting rod by draw-in groove.
As preferably, described fixture comprises rubber cylinder and is arranged on the spring body in rubber cylinder.
As preferably, the irradiation mouth of described radioactive source is disposed with attenuating plate and seal pad.
The beneficial effect that adopts technique scheme to bring is: the utility model is by changing the position of slip ring, and then the angle of inclination of three leads of change, has realized according to the difference of measured object and has changed gamma Rays area and angle.Fixed card slot is used for clamping measured object.According to measuring needs, can select the receiver fixed disc of diverse location to fix gamma-ray receiver, the receiver fixed disc below that is provided with gamma-ray receiver is connected with connecting rod, connecting rod can make different gamma-ray receivers hold together, and reduces the error that causes different gamma-ray receivers to be accepted gamma-rays due to vibration.Under the drive of drive motor, rotating disc at the uniform velocity rotates, make different gamma-ray receivers constantly change receiving position, thereby realized the mutual verification of different gamma-ray receivers, reduced the measuring error causing due to the error of certain gamma-ray receiver.Fixture is locked by fastening bolt, has improved the stability of whole device, and greatly reduce the generation of resonance.Attenuating plate is used for adjusting gamma-ray intensity, and seal pad can be realized the sealing completely to radioactive source, improves security.
Brief description of the drawings
Fig. 1 is the schematic diagram of an embodiment of the utility model.
Fig. 2 is the vertical view of rotating disc in embodiment of the utility model.
In figure: 1, radioactive source; 2, lead; 3, chute; 4, slip ring; 5, fixed card slot; 6, rotating disc; 7, coupling shaft; 8, drive motor; 9, pedestal; 10, receiver fixed disc; 11, gamma-ray receiver; 12, fixed bar; 13, draw-in groove; 14, connecting rod; 15, rubber cylinder; 16, spring body; 17, attenuating plate; 18, seal pad; 19, plumbous throwing net.
Embodiment
With reference to Fig. 1-2, embodiment of the utility model comprises radioactive source 1, the irradiation mouth of described radioactive source 1 is hinged with three leads 2, three leads 2 evenly arrange round the irradiation mouth center of radioactive source 1, each lead 2 surfaces are provided with a chute 3, three leads 2 link together by the slip ring 4 being connected on chute 3, and lead 2 is 15 ° with the angle of vertical direction, the below of radioactive source 1 is provided with fixed card slot 5, fixed card slot 5 belows are provided with rotating disc 6, rotating disc 6 is connected with drive motor 8 by coupling shaft 7, drive motor 8 is arranged on pedestal 9, rotating disc 6 is welded on coupling shaft 7, between coupling shaft 7 and drive motor 8, between drive motor 8 and pedestal 9, be respectively arranged with fixture, rotating disc 6 is taking the center of circle as axle center annular is provided with six row pickup grooves, each pickup groove is made up of four receiver fixed discs 10, on rotating disc 6, be provided with three gamma-ray receivers 11, three gamma-ray receivers 11 are evenly arranged in the second line receiver fixed disc 10 calculating from the center of circle, receiver fixed disc 10 bottoms are provided with fixed bar 12, on fixed bar 12, be provided with several draw-in grooves 13, be provided with between the fixed bar 12 of receiver fixed disc 10 belows of gamma-ray receiver 11 and be connected with connecting rod 14 by draw-in groove 13.
It should be noted that described fixture comprises rubber cylinder 15 and is arranged on the spring body 16 in rubber cylinder 15.
In addition, the irradiation mouth of described radioactive source 1 is disposed with attenuating plate 17 and seal pad 18.
Wherein, be provided with plumbous throwing stratum reticulare 19 in attenuating plate 17, seal pad 18 is the stereotype that 10cm is thick.Plumbous throwing stratum reticulare 19 is realized gamma-ray partially absorbing, and controls the intensity of surveying with ray.
In the present embodiment, gamma-ray receiver 11 is known prior art, and its structure and concrete connection, using method are that those skilled in the art grasp, and are not described in detail in this.
Principle of work of the present utility model is: the utility model is by changing the position of slip ring 4, and then the angle of inclination of three leads 2 of change, has realized according to the difference of measured object and has changed gamma Rays area and angle.Fixed card slot 5 is used for clamping measured object.According to measuring needs, can select the receiver fixed disc 10 of diverse location to fix gamma-ray receiver 11, receiver fixed disc 10 belows that are provided with gamma-ray receiver 11 are connected with connecting rod 14, connecting rod 14 can make different gamma-ray receiver 11 hold together, and reduces the error that causes different gamma-ray receiver 11 to be accepted gamma-rays due to vibration.Under the drive of drive motor 8, rotating disc 6 at the uniform velocity rotates, make different gamma-ray receiver 11 constantly change receiving position, thereby realized the mutual verification of different gamma-ray receivers 11, reduced the measuring error causing due to the error of certain gamma-ray receiver 11.Fixture is locked by fastening bolt, has improved the stability of whole device, and greatly reduce the generation of resonance.Attenuating plate 17 is for adjusting gamma-ray intensity, and seal pad 18 can be realized the sealing completely to radioactive source, improves security.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof
.
Claims (3)
1. an improved nuclear radiation density detector, comprise radioactive source (1), it is characterized in that: the irradiation mouth of described radioactive source (1) is hinged with three leads (2), three leads (2) evenly arrange round the irradiation mouth center of radioactive source (1), each lead (2) surface is provided with a chute (3), and three leads (2) link together by the slip ring (4) being connected on chute (3), the below of radioactive source (1) is provided with fixed card slot (5), fixed card slot (5) below is provided with rotating disc (6), rotating disc (6) is connected with drive motor (8) by coupling shaft (7), drive motor (8) is arranged on pedestal (9), between coupling shaft (7) and drive motor (8), between drive motor (8) and pedestal (9), be respectively arranged with fixture, rotating disc (6) is taking the center of circle as axle center annular is provided with some row pickup grooves, each pickup groove is made up of several receiver fixed discs (10), on rotating disc (6), be at least provided with two gamma-ray receivers (11), receiver fixed disc (10) bottom is provided with fixed bar (12), on fixed bar (12), be provided with several draw-in grooves (13), be provided with between the fixed bar (12) of receiver fixed disc (10) below of gamma-ray receiver (11) and be connected with connecting rod (14) by draw-in groove (13).
2. improved nuclear radiation density detector according to claim 1, is characterized in that: described fixture comprises rubber cylinder (15) and is arranged on the spring body (16) in rubber cylinder (15).
3. improved nuclear radiation density detector according to claim 1, is characterized in that: the irradiation mouth of described radioactive source (1) is disposed with attenuating plate (17) and seal pad (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079520.1U CN203785987U (en) | 2014-02-22 | 2014-02-22 | Improved nuclear radiation density detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079520.1U CN203785987U (en) | 2014-02-22 | 2014-02-22 | Improved nuclear radiation density detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203785987U true CN203785987U (en) | 2014-08-20 |
Family
ID=51322164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420079520.1U Expired - Fee Related CN203785987U (en) | 2014-02-22 | 2014-02-22 | Improved nuclear radiation density detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203785987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730567A (en) * | 2015-03-13 | 2015-06-24 | 中国计量科学研究院 | Attenuator |
-
2014
- 2014-02-22 CN CN201420079520.1U patent/CN203785987U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730567A (en) * | 2015-03-13 | 2015-06-24 | 中国计量科学研究院 | Attenuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20180222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |