CN103630924A - Multidimensional detection device of whole body radioactive surface contamination monitoring system - Google Patents
Multidimensional detection device of whole body radioactive surface contamination monitoring system Download PDFInfo
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- CN103630924A CN103630924A CN201310671288.0A CN201310671288A CN103630924A CN 103630924 A CN103630924 A CN 103630924A CN 201310671288 A CN201310671288 A CN 201310671288A CN 103630924 A CN103630924 A CN 103630924A
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Abstract
The invention discloses a multidimensional detection device of a whole body radioactive surface contamination monitoring system. Radioactive sources are placed in front of a measuring terminal of each detector by the multidimensional detection device in stead of manual work, each detector is detected to determine detection efficiency and flexibility of the same, the whole process can be automatically completed with a small amount of manual intervention, and the defects of a manual operation method and potential harm are solved. The technical scheme includes that multidimensional space positioning and movement of alpha, beta and gamma plane sources is realized, the detection and correction problems of the whole body radioactive surface contamination monitoring system are solved and detection is automated due to the fact that the control technology taking a single-chip microcomputer as a core is adopted, ball screw nut machinery is taken as an actuator and a stepping motor is utilized to drive the actuator, the ball screw nut machinery.
Description
Technical field
The present invention relates to a kind of alpha-contamination pick-up unit, relate in particular to the multidimensional detection device of body radioactivity surface monitoring system.
Background technology
Construction along with nuclear power station, personnel in nuclear power station work are also more and more, staff in radiation control zone may be subject to x radiation x and be infected with radiomaterial, the body radioactivity surface monitoring system of setting up nuclear power station detects and enters radiation control zone personnel's radiation and be infected with radiomaterial situation, by the detector in body radioactivity surface monitoring system, can find in time radioactive surface contamination's situation, take appropriate measures and eliminate danger.The normal operation of this equipment is being brought into play significant role to ensureing nuclear power station staff's personal safety.
Body radioactivity surface monitoring system is the space of a multidimensional, and its detection side is to comprising: several, front, left and right, upper, end etc., and each face is not necessarily vertical, and likely different.
During personnel's inlet/outlet; personnel stand in monitoring system; can to the radioactive contamination of personnel's whole body, carry out fast detecting by detector and the checkout equipment of surrounding, determine whether, by the position of being infected with radiomaterial and being infected with, staff's safety to be played a protective role.
Whether whether the detector of installing in monitoring system or instrument precision and sensitivity working properly, that detect reach requirement, and this is extremely important to ensureing nuclear power station staff's safety.For the detector of different model and the checkout equipment of different manufacturers, the precision of its detection and sensitivity are discrepant, and to the detector of same model and checkout equipment, after work different time, its detection efficiency, sensitivity and precision also can change.As time goes on detector and checkout equipment can make detection efficiency, sensitivity and precision change, and make monitoring system can not play the effect of safety guarantee.For this reason, guarantee the reliability of monitoring system, detector and the checkout equipment of reply monitoring system are tested and proofread and correct.
The reliability and the sensitivity that how to detect the detector of monitoring system are very crucial problems, due to monitoring system volume and space large, general volume is for long: 700mm, wide: 650mm, dark: 400mm, high 1800mm, shape is the cube of rule not necessarily.There is no at present special automated correction equipment and device, the method adopting is now the radioactive source that adopts certain activity, allow each detector measure, according to the data of this measurement, determine detection efficiency, the sensitivity of this detector, thereby judgement detects reliability and the sensitivity of detector in monitoring system.Because the detector of monitoring system is numerous, by manually radioactive source being taken before each detector, staying for some time allows detector measurement, and then radioactive source is taken to next detector pre-test, so detects the duty of each detector.In whole process, expend time in longer, and people holds radioactive source and checks and may stain radiomaterial by detector.
Summary of the invention
The object of the invention is to address the above problem, a kind of multidimensional detection device of body radioactivity surface monitoring system is provided, with this device, substitute and manually radioactive source is put into before each detector measurement end, each detector is detected, determine detection efficiency, the sensitivity of this detector, whole process can realize automatically completing of a small amount of manual intervention, solves the deficiency of manual manipulation method and potential harm.
Technical scheme of the present invention is: the present invention has disclosed a kind of multidimensional detection device of body radioactivity surface monitoring system, comprise detection control chip, control testing circuit with the driving that detects control chip electric connection, with the stepper motor that drives control testing circuit to be electrically connected, the ball-screw nut travel mechanism being connected with stepper motor and the position transducer being electrically connected with driving control testing circuit, wherein detect control chip to driving control testing circuit to send instruction, by driving, control testing circuit Driving Stepping Motor as driving force, the precision that ball-screw nut travel mechanism completes XYZ three-dimensional coordinate as topworks of usining moves.
According to an embodiment of the multidimensional detection device of body radioactivity surface monitoring system of the present invention, drive and control testing circuit, stepper motor, ball-screw nut travel mechanism and position transducer comprise driving control testing circuit and the stepper motor supporting with it on X coordinate, ball-screw nut travel mechanism and position transducer, testing circuit and the stepper motor supporting with it are controlled in driving on Y coordinate, ball-screw nut travel mechanism and position transducer, testing circuit and the stepper motor supporting with it are controlled in driving on Z coordinate, ball-screw nut travel mechanism and position transducer.
According to an embodiment of the multidimensional detection device of body radioactivity surface monitoring system of the present invention, position transducer comprises proximal location sensor and distal location sensor, XYZ three-dimensional coordinate is to calculate according to the step number of stepper motor and pitch, each group proximal location sensor and distal location sensor are installed in starting point and the terminal of corresponding travel mechanism, to locate XYZ three-dimensional coordinate accurate mobile zero point and maximum displacement.
According to an embodiment of the multidimensional detection device of body radioactivity surface monitoring system of the present invention, ball-screw nut travel mechanism on Z coordinate is double layers of rolling balls feed screw nut travel mechanism, it is half of ultimate range that stack by double layers of rolling balls feed screw nut realizes every layer of displacement, and two-layer displacement is the twice of individual layer displacement.
According to an embodiment of the multidimensional detection device of body radioactivity surface monitoring system of the present invention, device also comprises arc surface rotating mechanism, and arc surface rotating mechanism further comprises:
Turn source Drive and Control Circuit, be electrically connected with detecting control chip, the instruction that the arc surface for planar source that reception detection control chip sends rotates;
Stepper motor on arc surface, is electrically connected and turns source Drive and Control Circuit, as the driving mechanism of implementing arc surface rotation;
Turn source mechanism, connect the stepper motor on arc surface, by the rotation step number of stepper motor, controlling corner rotates and location to complete the arc surface of planar source, the starting point and the terminal that wherein rotate are located by the position of two faces of mounting parts, interposition is 90 °, coordinate the movement of XYZ three-dimensional coordinate, realize the movement to arc surface on fourth dimension azimuth direction.
According to an embodiment of the multidimensional detection device of body radioactivity surface monitoring system of the present invention, device also comprises manual reverse mechanism, by the movement of the top surface at planar source, coordinating the movement of XYZ three-dimensional coordinate is that the 5th dimension direction checks to the top surface of monitoring system.
According to an embodiment of the multidimensional detection device of body radioactivity surface monitoring system of the present invention, device is also equipped with display to show coordinate and the parameter in each orientation.
According to an embodiment of the multidimensional detection device of body radioactivity surface monitoring system of the present invention, detecting control chip is Single Chip Microcomputer (SCM) system.
According to an embodiment of the multidimensional detection device of body radioactivity surface monitoring system of the present invention, device also comprises data transmission interface, peripherals operation-interface.
According to an embodiment of the multidimensional detection device of body radioactivity surface monitoring system of the present invention, data transmission interface comprises serial data interface and wireless transmission interface.
The present invention contrasts prior art following beneficial effect: the present invention has adopted the control technology that single-chip microcomputer is core, utilization be take ball screw nut machinery as topworks, utilize stepper motor accurately to drive ball screw nut mechanical actuating mechanism, location and the movement of the hyperspace of α, β and γ plane source have been realized, solve detection and the Correction Problems of body radioactivity surface monitoring system, realized detection robotization.Device of the present invention substitutes and manually radioactive source is put into before each detector or checkout equipment, and each detector is detected and verification, determines detection efficiency, the sensitivity of this detector.Whole process only needs a small amount of manual intervention, can automatically complete the detection to each face and azimuth sounder.
Accompanying drawing explanation
Fig. 1 shows the schematic diagram of preferred embodiment of the multidimensional detection device of body radioactivity surface monitoring system of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Fig. 1 shows the principle of preferred embodiment of the multidimensional detection device of body radioactivity surface monitoring system of the present invention.Refer to Fig. 1, the multidimensional detection device of the present embodiment comprises that as the detection control chip 1(that control to detect core be C8051F020 single-chip microcomputer 1 in the present embodiment), organize arc surface rotating mechanism and the manual reverse of direction mechanism 7 of mobile device, planar source more.Mobile control, position probing, coordinate that single-chip microcomputer 1 completes whole device calculate and show.In the present embodiment, these many group mobile devices are respectively: the driving on X coordinate is controlled testing circuit 20 and the stepper motor 21(supporting with it as driving power), the 24(of ball-screw nut travel mechanism is as topworks) and position transducer (being respectively proximal location sensor 22 and distal location sensor 23); Testing circuit 30 and stepper motor 31, ball-screw nut travel mechanism 34 and the position transducer (be respectively proximal location sensor 32 and distal location sensor 33) supporting with it are controlled in driving on Y coordinate; Testing circuit and stepper motor, ball-screw nut travel mechanism and the position transducer supporting with it are controlled in driving on Z coordinate.On Z coordinate, adopt double layers of rolling balls feed screw nut travel mechanism, in Fig. 1, testing circuit 40 and stepper motor 41, ball-screw nut travel mechanism 44 and the position transducer (be respectively proximal location sensor 42 and distal location sensor 43) supporting with it are controlled in the driving being divided on Z1 coordinate; Testing circuit 50 and stepper motor 51, ball-screw nut travel mechanism 54 and the position transducer (be respectively proximal location sensor 52 and distal location sensor 53) supporting with it are controlled in driving on Z2 coordinate.It is half of ultimate range that stack by double layers of rolling balls feed screw nut realizes every layer of displacement, two-layer displacement be individual layer displacement twice (for example, every layer of displacement 900mm, the two-layer large distance that reaches altogether 1800mm with the mobile size of maximum), thus reach the object that increases displacement.
For example, structure on every one dimension (X coordinate, Y coordinate, Z1 coordinate, Z2 coordinate) is identical with operation principles, here take illustrating as example on X coordinate, driving on X coordinate is controlled testing circuit 20 and is electrically connected with single-chip microcomputer 1, and single-chip microcomputer 1 is to driving control testing circuit 20 to send instruction.Stepper motor 21 is electrically connected with driving control testing circuit 20, by driving, controls testing circuit 20 Driving Stepping Motors 21 as driving force.Ball-screw nut travel mechanism 24 is connected with stepper motor 21, and proximal location sensor 22 and distal location sensor 23 are controlled testing circuit 20 electric connections with driving respectively.Last using the precision that ball-screw nut travel mechanism 24 completes XYZ three-dimensional coordinate as topworks and move.Under the control of single-chip microcomputer 1, stepper motor 21 drives ball-screw nut travel mechanism 24 to rotate, nut on leading screw is converted to traveling priority by rotation, according to the step number of stepper motor 21 and pitch, calculate XYZ three-dimensional coordinate (mobile distance and coordinate), proximal location sensor 22 and distal location sensor 23 are installed in starting point and the terminal of corresponding travel mechanism, to locate XYZ three-dimensional coordinate accurate mobile zero point and maximum displacement.
The arc surface rotating mechanism of planar source further comprises the stepper motor 61 turning on source Drive and Control Circuit 60, arc surface and turns source mechanism 62.This mechanism is mainly the detection for irregular test surface.Turn source Drive and Control Circuit 60 and be electrically connected with single-chip microcomputer 1, the instruction that the arc surface for planar source that reception single-chip microcomputer 1 sends rotates.Stepper motor 61 on arc surface is electrically connected and turns source Drive and Control Circuit 60, as the driving mechanism of implementing arc surface rotation.Turn the stepper motor 61 that source mechanism 62 connects on arc surface, by the rotation step number of stepper motor 61, controlling corner rotates and location to complete the arc surface of planar source, the starting point of wherein rotating and terminal are located (in one plane by the position of two faces of mounting parts, it is 0～180 °), interposition is 90 °, coordinate the movement of XYZ three-dimensional coordinate, realize the movement to arc surface on fourth dimension azimuth direction.
Manual reverse mechanism 7 is by the movement of the top surface at planar source, and coordinating the movement of XYZ three-dimensional coordinate is that the 5th dimension direction checks to the top surface of monitoring system.That is, in the detection for monitoring system top, adopt manual reverse mechanism 7 by emissive source workplace upwards, the 5th dimension top-direction of implement device moves.
Device is equipped with display 8 to show coordinate and the parameter in each orientation, comprise the coordinate of radioactive source and rotational angle etc., and can for example, by data transmission interface (serial ports 11), carry out data transmission, and can be connected by input equipments such as keyboard interface 10 and keyboards, can also set up communication by wireless transmission interface 9 and external wireless remote control equipment.In operator scheme, can adopt keyboard, remote control and computer-controlled multiple-working mode.Can select flexibly working method according to the actual needs of measuring.The precise figures that can show each dimension coordinate in the whole process that detects and proofread and correct in device.
Above-described embodiment is to provide to those of ordinary skills and realizes and use of the present invention; those of ordinary skills can be without departing from the present invention in the case of the inventive idea; above-described embodiment is made to various modifications or variation; thereby protection scope of the present invention do not limit by above-described embodiment, and it should be the maximum magnitude that meets the inventive features that claims mention.
Claims (10)
1. the multidimensional detection device of a body radioactivity surface monitoring system, it is characterized in that, comprise detection control chip, control testing circuit with the driving that detects control chip electric connection, with the stepper motor that drives control testing circuit to be electrically connected, the ball-screw nut travel mechanism being connected with stepper motor and the position transducer being electrically connected with driving control testing circuit, wherein detect control chip to driving control testing circuit to send instruction, by driving, control testing circuit Driving Stepping Motor as driving force, the precision that ball-screw nut travel mechanism completes XYZ three-dimensional coordinate as topworks of usining moves.
2. the multidimensional detection device of body radioactivity surface monitoring system according to claim 1, it is characterized in that, drive and control testing circuit, stepper motor, ball-screw nut travel mechanism and position transducer comprise driving control testing circuit and the stepper motor supporting with it on X coordinate, ball-screw nut travel mechanism and position transducer, testing circuit and the stepper motor supporting with it are controlled in driving on Y coordinate, ball-screw nut travel mechanism and position transducer, testing circuit and the stepper motor supporting with it are controlled in driving on Z coordinate, ball-screw nut travel mechanism and position transducer.
3. the multidimensional detection device of body radioactivity surface monitoring system according to claim 1, it is characterized in that, position transducer comprises proximal location sensor and distal location sensor, XYZ three-dimensional coordinate is to calculate according to the step number of stepper motor and pitch, each group proximal location sensor and distal location sensor are installed in starting point and the terminal of corresponding travel mechanism, to locate XYZ three-dimensional coordinate accurate mobile zero point and maximum displacement.
4. the multidimensional detection device of body radioactivity surface monitoring system according to claim 2, it is characterized in that, ball-screw nut travel mechanism on Z coordinate is double layers of rolling balls feed screw nut travel mechanism, it is half of ultimate range that stack by double layers of rolling balls feed screw nut realizes every layer of displacement, and two-layer displacement is the twice of individual layer displacement.
5. the multidimensional detection device of body radioactivity surface monitoring system according to claim 1, is characterized in that, device also comprises arc surface rotating mechanism, and arc surface rotating mechanism further comprises:
Turn source Drive and Control Circuit, be electrically connected with detecting control chip, the instruction that the arc surface for planar source that reception detection control chip sends rotates;
Stepper motor on arc surface, is electrically connected and turns source Drive and Control Circuit, as the driving mechanism of implementing arc surface rotation;
Turn source mechanism, connect the stepper motor on arc surface, by the rotation step number of stepper motor, controlling corner rotates and location to complete the arc surface of planar source, the starting point and the terminal that wherein rotate are located by the position of two faces of mounting parts, interposition is 90 °, coordinate the movement of XYZ three-dimensional coordinate, realize the movement to arc surface on fourth dimension azimuth direction.
6. the multidimensional detection device of body radioactivity surface monitoring system according to claim 1, it is characterized in that, device also comprises manual reverse mechanism, by the movement of the top surface at planar source, coordinating the movement of XYZ three-dimensional coordinate is that the 5th dimension direction checks to the top surface of monitoring system.
7. the multidimensional detection device of body radioactivity surface monitoring system according to claim 1, is characterized in that, device is also equipped with display to show coordinate and the parameter in each orientation.
8. the multidimensional detection device of body radioactivity surface monitoring system according to claim 1, is characterized in that, detecting control chip is Single Chip Microcomputer (SCM) system.
9. the multidimensional detection device of body radioactivity surface monitoring system according to claim 1, is characterized in that, device also comprises data transmission interface, peripherals operation-interface.
10. the multidimensional detection device of body radioactivity surface monitoring system according to claim 9, is characterized in that, data transmission interface comprises serial data interface and wireless transmission interface.
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| CN201310671288.0A CN103630924B (en) | 2013-12-10 | 2013-12-10 | The multidimensional detection device of body radioactivity surface monitoring system |
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| CN201310671288.0A CN103630924B (en) | 2013-12-10 | 2013-12-10 | The multidimensional detection device of body radioactivity surface monitoring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104656122A (en) * | 2015-01-31 | 2015-05-27 | 成都理工大学 | Multi-dimensional nuclear safety door detection and verification device |
| CN106706222A (en) * | 2017-01-09 | 2017-05-24 | 北京中昌天盛科技有限公司 | Detection system and method |
| CN106895806A (en) * | 2017-04-18 | 2017-06-27 | 中国科学技术大学 | A kind of monitoring device based on various dimensions sensor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104656122A (en) * | 2015-01-31 | 2015-05-27 | 成都理工大学 | Multi-dimensional nuclear safety door detection and verification device |
| CN106706222A (en) * | 2017-01-09 | 2017-05-24 | 北京中昌天盛科技有限公司 | Detection system and method |
| CN106895806A (en) * | 2017-04-18 | 2017-06-27 | 中国科学技术大学 | A kind of monitoring device based on various dimensions sensor |
| CN106895806B (en) * | 2017-04-18 | 2023-03-24 | 中国科学技术大学 | Monitoring device based on multi-dimensional sensor |
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| CN103630924B (en) | 2016-01-06 |
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