CN217034266U - Radioactivity self-adaptation measuring device - Google Patents
Radioactivity self-adaptation measuring device Download PDFInfo
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- CN217034266U CN217034266U CN202220834164.4U CN202220834164U CN217034266U CN 217034266 U CN217034266 U CN 217034266U CN 202220834164 U CN202220834164 U CN 202220834164U CN 217034266 U CN217034266 U CN 217034266U
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Abstract
The utility model discloses a radioactivity self-adaptive measuring device, which comprises: a radioactivity detecting assembly comprising a radioactivity detector; an adjustable shield assembly; the servo assembly is arranged and connected with the adjustable shielding assembly; the control assembly is connected with the radioactivity detection assembly and the servo assembly; wherein the adjustable shielding assembly is disposed at an opposite position on an outer side of the radiation detection assembly. The radioactivity self-adaptation measuring device disclosed in the embodiment of the application can adjust the radiation intensity entering the radioactivity detector in a self-adaptation mode according to the radiation intensity of the radioactive source, so that the radiation intensity can be adjusted within a reasonable intensity range to realize the accurate measurement of the radiation intensity of the radioactive source by the radioactivity detector, the use safety of the radioactivity detector is protected, and the service life of the radioactivity detector is prolonged.
Description
Technical Field
The application belongs to the technical field of radioactivity measurement, and particularly relates to a radioactivity self-adaptive measuring device.
Background
The fukushima nuclear accident in 2011 also rings a warning clock for nuclear emergency monitoring in a strong radiation environment. When the multiple detection devices enter the accident scene, the multiple detection devices are paralyzed or even cannot recover. One of the important reasons is that the detection equipment cannot adapt to a strong radioactive scene, so that the instrument is damaged or injured.
The rapid development of nuclear power on a large scale has increasingly strong demand on radioactive measuring instruments with large dynamic ranges. At present, the detectors in the market adopt high-low efficiency detectors to realize a large dynamic range radioactivity measurement function in a combined mode, and although the high-low efficiency detector realizes the large dynamic range radioactivity measurement, the high-efficiency detectors are exposed in a strong radiation environment and are difficult to survive smoothly for a long time, so that the measurement accuracy and the service life of the high-efficiency detectors are seriously hindered.
SUMMERY OF THE UTILITY MODEL
In view of this, some embodiments disclose a radioactivity adaptive measuring device comprising:
a radioactivity detecting assembly including a radioactivity detector for measuring the radioactivity intensity of the radioactive source;
the adjustable shielding assembly is used for adjusting the radiation quantity of the radioactive source entering the radioactivity detection assembly;
the servo assembly is connected with the adjustable shielding assembly and is used for controlling the adjustable shielding assembly to adjust the radiation quantity entering the radioactivity detection assembly;
the control assembly is connected with the radioactivity detection assembly and the servo assembly and is used for processing radioactivity intensity information measured by the radioactivity detector and controlling the servo assembly to control the adjustable shielding assembly;
wherein the adjustable shielding component is arranged at the outer side of the radioactivity detection component and at the position opposite to the radioactivity detector.
Further, in the radioactivity adaptive measuring device disclosed in the embodiment of the present invention, the adjustable shielding assembly includes an adjustable collimating aperture structure, and the cross-sectional area of the adjustable collimating aperture structure is set to be adjustable.
Preferably, in the radioactivity adaptive measuring device disclosed in the embodiment of the present invention, the adjustable shielding assembly comprises:
a circular housing;
the annular component is arranged inside the circular shell and is rotatably connected with the inner wall of the circular shell;
one end of each arc-shaped blade is rotatably connected with the inner wall of the circular shell, and is also rotatably connected with the annular part, and the arc-shaped blades are partially overlapped in sequence to form an adjustable collimation hole structure;
when the annular component and the circular shell rotate mutually, the arc-shaped blades are driven to move so as to adjust the size of the cross section of the adjustable collimation hole structure.
Preferably, in a radioactivity adaptive measuring device according to further embodiments of the present invention, the adjustable shielding assembly comprises:
a circular housing;
the annular component is arranged in the circular shell and is rotatably connected with the inner wall of the circular shell; the annular component is provided with an installation groove which forms a certain angle with the radial direction of the annular component;
the arc-shaped blades are provided with two mounting shafts and are used for mounting the arc-shaped blades in mounting grooves in the annular component;
when the annular component and the circular shell rotate mutually, the arc-shaped blades are driven to move so as to adjust the size of the cross section of the adjustable collimation hole structure.
Preferably, in the radioactivity adaptive measuring device disclosed in some embodiments of the present invention, an included angle between the mounting groove on the annular component and a radial direction of the annular component is an acute angle of 20 to 70 °.
Preferably, in the radioactivity adaptive measuring device disclosed in some embodiments of the present invention, the adjustable shielding assembly comprises a thickness adjustable structure.
Further, some embodiments of the utility model disclose a radioactivity adaptive measuring device, wherein the adjustable shielding assembly comprises:
a square housing, one side of which is provided with a plurality of openings arranged in parallel;
the square components are sequentially arranged inside the square shell; the square components are respectively matched with the openings in shape and correspond to the openings one by one; the square member is configured to move in the opening corresponding thereto;
the cylinder sets up and is connected with square part, and the cylinder sets up to drive square part and move in the opening rather than the adaptation under servo assembly's control.
Further, some embodiments of the utility model disclose a radioactivity adaptive measuring device, wherein the adjustable shielding assembly comprises:
a square housing having an opening formed in one side surface thereof;
a plurality of square members placed at set positions in the storage box; the square component is arranged to be placed into the square shell through the opening;
the guide rail is arranged above the square shell;
and the movable gripper assembly is movably connected with the guide rail and is used for gripping a specific square part in the storage box and placing the square part into the square shell.
Preferably, in the radioactivity adaptive measuring device disclosed in some embodiments of the present invention, the movable gripper assembly includes a movable telescopic robot arm, one end of the telescopic robot arm is movably connected to the guide rail, and a rotatable mechanical gripper is disposed at the other end of the telescopic robot arm.
Preferably, in the radioactivity adaptive measuring device disclosed in some embodiments of the present invention, a guide groove for facilitating the insertion or extraction of the movable gripper assembly into or out of the square component is provided in the square housing, and the structure of the guide groove in the square housing is adapted to the structure of the square component.
The embodiment of the application discloses radioactivity self-adaptation measuring device can get into the radiation intensity of radiation detector according to the radiation intensity self-adaptation regulation of radiation source to adjust the radiation intensity and realize the accurate measurement of radiation detector to the radiation source radiation intensity within reasonable intensity range, protect radiation detector's safety in utilization, prolong its life.
Drawings
FIG. 1 is a schematic diagram of the composition of an adaptive radioactivity measuring device in embodiment 1;
FIG. 2 is a schematic view of the structure of an adjustable shielding component in embodiment 2;
FIG. 3 is a schematic structural view of an adjustable shielding assembly in embodiment 3;
FIG. 4 is a schematic structural view of a ring-shaped component in embodiment 3;
FIG. 5 is a schematic structural view of a cambered blade of embodiment 3;
FIG. 6 is a schematic view of the structure of the adjustable shielding component in embodiment 4;
fig. 7 is a schematic structural view of an adjustable shielding assembly in embodiment 5.
Reference numerals
1 adjustable shielding assembly 2 radioactivity detecting assembly
3 control assembly 4 servo assembly
11 adjustable collimation hole structure of arc blade 12
13 annular component 14 circular housing
20 radioactivity measurement area 21 radioactivity detector
111 installation of shaft 100 radioactive source
131 mounting groove 15 square shell
16 square parts 17 cylinder
151 open 18 storage tank
19 guide rail 191 movable gripper assembly
Detailed Description
The word "embodiment" as used herein, is not intended to limit any embodiment described as "exemplary" to any other embodiment or advantages. Performance index tests in the examples of this application, unless otherwise indicated, were performed using routine experimentation in the art. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; other test methods and techniques not specifically mentioned in the present application are those commonly employed by those of ordinary skill in the art.
The terms "substantially" and "about" are used herein to describe small fluctuations. For example, they may mean less than or equal to ± 5%, such as less than or equal to ± 2%, such as less than or equal to ± 1%, such as less than or equal to ± 0.5%, such as less than or equal to ± 0.2%, such as less than or equal to ± 0.1%, such as less than or equal to ± 0.05%. Numerical data represented or presented herein in a range format is used merely for convenience and brevity and thus should be interpreted flexibly to include not only the numerical values explicitly recited as the limits of the range, but also to include all the individual numerical values or sub-ranges encompassed within that range as if each numerical value and sub-range is explicitly recited. For example, a numerical range of "1 to 5%" should be interpreted to include not only the explicitly recited values of 1% to 5%, but also include individual values and sub-ranges within the indicated range. Thus, included in this numerical range are individual values, such as 2%, 3.5%, and 4%, and sub-ranges, such as 1% to 3%, 2% to 4%, and 3% to 5%, etc. This principle applies equally to ranges reciting only one numerical value. Moreover, such an interpretation applies regardless of the breadth of the range or the characteristics being described.
In this document, including the claims, conjunctions such as "comprising," including, "" carrying, "" having, "" containing, "" involving, "" containing, "and the like are understood to be open-ended, i.e., to mean" including but not limited to. Only the conjunctions "consisting of … …" and "consisting of … …" are closed conjunctions.
Numerous specific details are set forth in the following specific examples in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In the examples, some methods, means, instruments, apparatuses, etc. well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.
On the premise of no conflict, the technical features disclosed in the embodiments of the present application may be combined arbitrarily, and the obtained technical solution belongs to the content disclosed in the embodiments of the present application. It should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, referred to herein, refer to the orientation or positional relationship indicated in the drawings, which is merely for convenience in describing technical features and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention unless it is conflicting with the context. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless otherwise conflicting context.
In some embodiments, a radioactivity adaptive measurement device, comprising:
a radioactivity detecting assembly comprising a radioactivity detector; for measuring the radioactive intensity of a radioactive source; typically, the radiation detector is a high efficiency detector.
The high-efficiency detector has high detection sensitivity and high detection accuracy, in order to realize accurate detection of the high-efficiency detector on the radioactive source, a preset measurement threshold range is usually selected as a linear measurement range, the radiation quantity entering the radioactive detector is automatically adjusted to the measurement threshold range through the radioactive self-adaptive measuring device, accurate measurement is realized, the detection accuracy of the measuring method is improved, and the service life of the high-efficiency detector is prolonged.
The adjustable shielding assembly is used for adjusting the radiation quantity emitted by the radioactive source into the radioactivity detection assembly; the adjustable shielding assembly can adjust the intensity of nuclear radiation passing through the adjustable shielding assembly by itself, for example, the adjustable shielding assembly is provided with a hole structure through which nuclear radiation passes, the nuclear radiation amount passing through the hole structure is adjusted by adjusting the aperture size or the hole sectional area size of the hole structure, or the adjustable shielding assembly is provided with a structural component with adjustable thickness, and the nuclear radiation amount passing through the structural component is adjusted by adjusting the thickness of the structural component;
generally, the adjustable shielding component includes a structure or a part made of a material having a shielding effect against radiation, or is made of a material having a shielding effect against radiation, so as to be able to form a shielding effect against radiation, and is able to achieve an adjustable control of the radiation intensity by an adjustable dose of the adjustable shielding component through an adjustable control of the adjustable shielding component;
the servo assembly is connected with the adjustable shielding assembly; for controlling the adjustable shielding assembly to adjust the amount of radiation entering the radiation detection assembly;
the control assembly is connected with the radioactivity detection assembly and the servo assembly; the servo assembly is used for processing the pre-measurement information and the accurate measurement information and controlling the servo assembly to control the adjustable shielding assembly;
wherein the adjustable shielding component is arranged at the outer side of the radioactivity detection component and at the adaptive position corresponding to the radioactivity detector.
Typically, the adjustable shield assembly is disposed between the radiation source and the radiation detection assembly, and the radiation detector is disposed on an extension of the central axis of the adjustable collimation aperture arrangement. The radioactive detector can be protected from being damaged by strong radiation due to the arrangement, and meanwhile, rays emitted by the radioactive source can be irradiated to the radioactive detector through the adjustable collimation hole structure.
In some embodiments, the adjustable shield assembly includes an adjustable collimation aperture structure having a cross-section configured to be adjustable. Generally, the amount of nuclear radiation passing through an adjustable collimating aperture structure is directly proportional to the area of the aperture structure, with the larger the aperture structure area, the larger the amount of nuclear radiation passing through, the greater the nuclear radiation intensity; the radioactivity intensity obtained by the radioactive source measured by the radioactive detector is in positive correlation with the adjustable collimating aperture structure area during measurement, and the radioactivity intensity can be correspondingly adjusted by adjusting the sectional area of the collimating aperture structure.
Generally, the shape of the adjustable collimating aperture structure is polygonal, circular or elliptical.
In some embodiments, an adjustable shield assembly comprises:
a circular housing;
the annular component is arranged inside the circular shell and is rotatably connected with the inner wall of the circular shell;
one end of each arc-shaped blade is rotatably connected with the inner wall of the circular shell and is also rotatably connected with the annular part, and the arc-shaped blades are partially overlapped in sequence to form an adjustable collimation hole structure;
when the circular shell and the annular component rotate mutually, the arc-shaped blades are driven to move so as to adjust the size of the cross section of the adjustable collimation hole structure.
Generally, the arc-shaped blades are made of materials with radiation shielding function so as to form good shielding for nuclear radiation, and the nuclear radiation can freely pass through the adjustable collimation hole structure formed by the arc-shaped blades. Furthermore, the corresponding shielding material needs to be selected in a targeted manner according to the type of the radiation.
For example, among the shielding materials based on acetic acid-vinyl acetate copolymer, PbO/MWCNTs/EVA radiation shielding materials, PbO/CuO/EVA radiation shielding materials, B4C/ZB/MWCNTs/EVA flame-retardant neutron ray shielding materials; gamma ray shielding materials such as iron, tungsten, lead boron polyethylene, etc.; shielding materials for preventing X-rays, such as metallic lead, resin nano-lead and resin nano-lead composite materials, organic glass and the like; B4C, a radiation-proof fiber containing boron, and the like.
In some embodiments, the adjustable shield assembly includes a thickness adjustable structure. Generally, the nuclear radiation quantity passing through the adjustable shielding component is inversely proportional to the thickness of the thickness adjustable structure, and the thicker the thickness adjustable structure is, the smaller the nuclear radiation quantity passing through the thickness adjustable structure is, the weaker the nuclear radiation intensity is; the radioactivity intensity obtained by measuring the radioactive source by the radioactivity detector is inversely related to the thickness of the thickness adjustable structure during measurement, and the radioactivity intensity can be correspondingly adjusted by adjusting the thickness of the thickness adjustable structure.
In some embodiments, an adjustable shield assembly comprises:
a square housing, one side of which is provided with a plurality of openings arranged in parallel;
the square components are sequentially arranged inside the square shell; the square components are respectively matched with the openings in shape and correspond to the openings one by one; the square member is configured to move in the opening corresponding thereto;
the cylinder sets up to be connected with square part, and the cylinder sets up to drive square part and remove in the opening rather than the adaptation under servo assembly's control.
In some embodiments, an adjustable shield assembly comprises: a square housing having an opening formed in one side surface thereof;
a plurality of square members placed at set positions in the storage box; the square component is arranged to be placed into the square shell through the opening;
the guide rail is arranged above the square shell;
and the movable gripper assembly is movably connected with the guide rail and is used for gripping a specific square part in the storage box and placing the square part into the square shell.
In some embodiments, the movable gripper assembly comprises: the movable telescopic mechanical arm is movably connected with the guide rail, and a rotatable mechanical hand grip is arranged at the other end of the telescopic mechanical arm.
In some embodiments, the square housing is internally provided with a guide groove for facilitating the insertion or extraction of the movable gripper assembly into or out of the square component, and the structure of the guide groove is matched with that of the square component.
As an alternative embodiment, the control assembly comprises: the automatic servo control module and the radioactivity measurement module; the automatic servo control module is connected with the radioactivity measurement module; the automatic servo control module is connected with the servo assembly, and the radioactivity measuring module is connected with the radioactivity detecting assembly.
The automatic servo control module is used for controlling the servo assembly, the radioactivity measurement module is used for controlling the radioactivity detection assembly, controlling the radioactivity detector to pre-measure the radioactive source and process radioactivity intensity measurement data, a measurement threshold range is preset in the automatic servo control module, the radioactivity measurement module transmits the processed radioactivity intensity measurement data to the automatic servo control module, and the automatic servo control module determines a measurement program according to the relation between the radioactivity intensity measurement data and the preset measurement threshold range, for example, if the pre-measured radioactivity intensity data is within the preset measurement threshold range, the measured radioactivity intensity is used as a radioactivity measurement value of the radioactive source; if the pre-measured data is out of the range of the preset measurement threshold value, the automatic servo control module sends an instruction to the servo assembly, and the servo assembly adjusts the adjustable shielding assembly so as to adjust the nuclear radiation intensity of the radioactive source entering the radioactivity detection assembly within the range of the preset measurement threshold value, and then controls the radioactivity detector to accurately measure the radioactivity intensity of the radioactive source.
As an alternative embodiment, in the radioactivity adaptive measuring device, the radioactivity intensity measured by the radioactivity detector is represented by a maximum count rate, and the preset measuring threshold range is positioned in a maximum count rate limit value nmaxAnd a minimum count rate limit nminThe radioactivity intensity of the radioactive source measured by the radioactivity detector is n; if n ismin≤n≤nmaxTaking the radioactivity intensity n as a radioactivity intensity measured value; if n is<nminAutomatically adjusting and increasing the amount of radiation entering the radiation detector until n is satisfiedmin≤n≤nmaxThen, measuring the radioactive intensity by using a radioactive detector to obtain a radioactive intensity measured value; if n is>nmaxActivation of the radiation detector is disabled.
As an optional embodiment, the servo assembly is an automatic control assembly, and can adjust the adjustable shielding assembly at any time according to the indication information to realize the adjustment of the radiation amount; the servo assembly includes: the device comprises a controller, a power driving part, a feedback part and a servo motor; the controller, the power driving part, the feedback part and the servo motor are all electrically connected.
The controller adjusts the control quantity according to the relation between the preset measurement threshold range and the radioactivity intensity predicted by the radioactivity detector; the power driving part is used as a main loop of the servo assembly, on one hand, electric energy is applied to the servo motor according to the control quantity to adjust the torque of the servo motor, and on the other hand, alternating current or direct current required by the motor is provided according to the requirement of the servo motor; the servo motor drags the adjustable shielding body to move according to the power supply size, and the radiation quantity passing through the adjustable shielding body is adjusted.
As an alternative embodiment, the usage method of the radioactivity adaptive measuring device is as follows:
setting the adjustable shielding assembly to be in a completely closed state, and controlling the radioactivity measuring module to pre-measure a first radioactivity intensity of the radioactive source by the radioactivity detecting assembly; generally, when the adjustable shielding component is set to be in a completely closed state, the radioactive shielding effect on the radioactive source is the best, the radioactive intensity emitted from the radioactive source to the radioactive detector can be reduced to the minimum, and the radioactive detector is prevented from being damaged; at this time, the obtained first radioactivity intensity is generally the minimum radioactivity intensity detected by the radioactivity detector;
the radioactivity measuring module transmits the measured first radioactivity intensity to the automatic servo control module, and the automatic servo control module compares the first radioactivity intensity with a preset measuring threshold range;
if the first radioactivity intensity is within the preset measurement threshold range, taking the first radioactivity intensity as the radioactivity measurement intensity of the radioactive source;
if the first radioactivity intensity is out of the preset measurement threshold range, the automatic servo control module commands the servo assembly to adjust the adjustable shielding assembly according to the relation between the first radioactivity intensity and the preset measurement threshold range, so that the nuclear radiation intensity of the radioactive source entering the radioactivity detector is within the preset measurement threshold range;
then, measuring the radioactivity intensity of the radioactive source by using a radioactivity detector to obtain the measured radioactivity intensity of the radioactive source;
and calculating and determining the actual radiation intensity of the radioactive source according to the relationship between the measured radiation intensity and the radiation shielding effect of the adjustable shielding assembly.
The technical details are further illustrated in the following examples.
Example 1
Fig. 1 is a schematic diagram of a composition of an adaptive radioactivity measuring device disclosed in embodiment 1.
In embodiment 1, the radioactivity adaptive measuring device comprises an adjustable shielding component 1, wherein the adjustable shielding component 1 is connected with a servo component 4, and the servo component 4 is connected with a control component 3; the adjustable shielding assembly 1 is arranged between the radioactive source 100 and the radioactivity detecting assembly 2, the adjustable shielding assembly 1 comprises an adjustable shielding body and an adjustable collimation hole structure, the radioactivity detecting assembly 2 is arranged at a proper position opposite to the adjustable collimation hole structure, and the radioactivity detecting assembly 2 comprises a radioactivity detector 21 arranged at the end part of the radioactivity detecting assembly; when the radioactivity adaptive measuring device is used for measuring the radioactivity parameters of the radioactive source 100, the radioactivity adaptive measuring device is placed at a proper distance from the radioactive source 100, so that the radioactive rays emitted by the radioactive source 100 pass through a radioactivity measuring area 20 formed after the adjustable shielding assembly 1 to be matched with the radioactivity detecting assembly 2, and the radioactivity detector 21 is positioned in the radioactivity measuring area 20, and the radiation in the area can be measured.
Example 2
In the radioactivity adaptive measuring device disclosed in embodiment 2, as shown in fig. 2, the adjustable shielding assembly comprises a circular housing 14, the circular housing 14 is cylindrical as a whole, and an annular member 13 rotatably connected to the inner surface of the circular housing is arranged on the inner specific surface; a plurality of arc-shaped blades 11 are arranged in a circular shell 14, wherein one end of each arc-shaped blade 11 is rotatably connected with the inner surface of the circular shell 14, an annular part 13 is rotatably connected with each arc-shaped blade 11, the arc-shaped blades 11 are sequentially overlapped with each other, and an adjustable collimation hole structure 12 is formed in the central part; when the circular shell 14 and the annular part 13 rotate relatively, the arc-shaped blades 11 are driven to rotate in the same direction to form a collimation hole with adjustable sectional area; the adjustable shielding assembly is positioned to one side of the radiation source 100 such that radiation emitted by the radiation source 100 passes through the adjustable collimation aperture arrangement 12 to form a radioactivity measuring region 20 that is adapted to the radioactivity detecting assembly. When the cross-sectional area of the adjustable collimating aperture structure 12 changes, the radioactivity measuring region 20 changes accordingly.
Example 3
In the radioactivity adaptive measuring device disclosed in embodiment 3, as shown in fig. 3, 4 and 5, the adjustable shielding assembly comprises a circular housing 14, wherein the circular housing 14 is in a circular ring shape as a whole and is rotatably connected with an annular part 13 arranged inside the circular housing; the annular component is provided with a plurality of mounting grooves 131 which form a certain angle with the radial direction of the annular component, the mounting grooves are internally provided with arc-shaped blades 11, wherein each arc-shaped blade is provided with two mounting shafts 111 for mounting the arc-shaped blade 11 in the mounting groove 131 on the annular component 13; the mounting shaft 111 mounted in the mounting groove 131 can freely move therein; a plurality of arc-shaped blades 11 are sequentially overlapped with one another, and an adjustable collimation hole structure 12 is formed in the central part of the arc-shaped blades; when the circular shell 14 and the annular part 13 rotate relatively, the arc-shaped blades 11 are driven to rotate in the same direction to form an adjustable collimation hole structure 12; the adjustable shielding assembly is positioned to one side of the radiation source 100 such that radiation emitted by the radiation source 100 passes through the adjustable collimation aperture arrangement 12 to form a radioactivity measuring region 20 that is adapted to the radioactivity detecting assembly. When the cross-sectional area of the adjustable collimation hole structure 12 changes, the radioactivity measurement area 20 correspondingly changes;
the radial included angle between the installation groove 131 and the annular component is alpha;
the mounting groove 131 may be a recessed groove formed in the surface of the ring member or a through groove formed through the upper and lower surfaces of the ring member;
the arc-shaped blade 11 is a sheet-shaped structure with two sides having different radians, generally, two side faces of the sheet-shaped structure are arc-shaped, wherein the radians of the two side faces are the same, and the curvature of the radians are different.
Example 4
In the adaptive radioactivity measuring device disclosed in embodiment 4, as shown in fig. 6, the adjustable shielding assembly includes a square housing 15, which is rectangular in shape as a whole, and has a plurality of openings 151 arranged in parallel on an upper side surface thereof, a plurality of square members 16 are arranged inside the square housing 15, the plurality of square members 16 are perpendicular to the upper side surface of the square housing 15 and are in one-to-one correspondence with the plurality of openings 151 arranged on the upper side surface, and an opening corresponding to each square member 16 has a shape that is adapted to the shape of the square member so that the square member can move in the corresponding opening; each square part 16 is connected with one air cylinder 17, and the square parts 16 move up and down in the corresponding openings under the driving of the air cylinders 17;
the inner sides of the front and rear side panels of the square shell 15 are provided with guide grooves matched with the square components, and the number, position and shape of the guide grooves are matched with those of the square components so that the square components can move in the guide grooves and the arrangement positions of the square components in the square shell are stabilized;
each cylinder independently controls the corresponding square component, the square components are combined in the square shell in multiple modes to form square component assemblies with different thicknesses, the square component assemblies with different thicknesses have different radioactive shielding effects on the radiation source, and the adjustment of the radioactive intensity is realized;
the square member is made of a radioactive shielding material so as to have a shielding effect against nuclear radiation;
the plurality of air cylinders 17 drive the corresponding square parts to move up and down under the control of the servo assembly, and the square parts in the square shell realize various combinations; as shown in fig. 6, the square members located on the left and right sides are located in the housing to form a shield against radioactivity, and the middle square member is moved upward to a predetermined position, so that there is no shielding effect against radioactivity.
Example 5
In the adaptive radioactivity measuring device disclosed in this embodiment 5, as shown in fig. 7, the adjustable shielding assembly includes a square housing 15, which is rectangular in shape as a whole and has an opening on its upper side; through which the square piece 16 can enter the interior of the square housing 15; the square members 16 are usually provided in plural numbers, and placed in the storage box 18 in a set order and position, the square members 16 corresponding to the positions in the storage box 18 one by one; the guide rail 19 is a group of parallel linear guide rails and is arranged above the square shell 15, the guide rail 19 is vertically provided with a movable telescopic mechanical arm, the other end of the telescopic mechanical arm is provided with a rotatable mechanical hand grip, the movable telescopic mechanical arm and the rotatable mechanical hand grip form a movable hand grip component 191, and the movable hand grip component can linearly move along the guide rail under the driving of the servo component;
the movable gripper assembly 191 moves on the guide rail under the control of the servo assembly, moves to the upper part of the selected square part 16 in the storage box according to the instruction, the telescopic mechanical arm extends downwards to a length suitable for gripping the square part, the mechanical gripper grips the selected square part 16, then the telescopic mechanical arm retracts upwards and moves the selected square part to the opening on the upper side of the square shell, the mechanical gripper rotates to adjust the direction of the square part so as to insert the square part into the square shell from the opening, then the telescopic mechanical arm extends downwards, and the selected square part on the mechanical gripper is installed on the guide groove; when the square part needs to be replaced after the measurement is finished, the square part is put back into the storage box according to the reverse order; the appropriate square part is then picked from the storage bin and placed inside the square housing.
The radioactivity self-adaptation measuring device disclosed in the embodiment of the application can adjust the radiation intensity entering the radioactivity detector in a self-adaptation mode according to the radiation intensity of the radioactive source, so that the radiation intensity can be adjusted within a reasonable intensity range to realize the accurate measurement of the radiation intensity of the radioactive source by the radioactivity detector, the use safety of the radioactivity detector is protected, and the service life of the radioactivity detector is prolonged.
The technical solutions and the technical details disclosed in the embodiments of the present application are only examples to illustrate the inventive concept of the present application, and do not constitute a limitation on the technical solutions of the present application, and all the conventional changes, substitutions or combinations made on the technical details disclosed in the present application have the same inventive concept as the present application and are within the protection scope of the claims of the present application.
Claims (10)
1. Radioactivity adaptive measurement device, characterized in that includes:
a radioactivity detecting assembly including a radioactivity detector for measuring the radioactivity intensity of the radioactive source;
an adjustable shielding assembly for adjusting the amount of radiation from a radiation source entering the radiation detection assembly;
the servo assembly is connected with the adjustable shielding assembly and is used for controlling the adjustable shielding assembly to adjust the radiation quantity entering the radioactivity detection assembly;
the control component is connected with the radioactivity detection component and the servo component and is used for processing radioactivity intensity information measured by the radioactivity detector and controlling the servo component to control the adjustable shielding component;
wherein the adjustable shielding assembly is disposed outside the radioactivity detecting assembly in a position opposite the radioactivity detector.
2. The adaptive radioactivity measuring device of claim 1, wherein the adjustable shielding assembly comprises an adjustable collimation aperture structure, the cross-sectional area of which is configured to be adjustable.
3. The radioactivity adaptive measurement device of claim 2, wherein the adjustable shield assembly comprises:
a circular housing;
the annular part is arranged inside the circular shell and is rotatably connected with the inner wall of the circular shell;
one end of each arc-shaped blade is rotatably connected with the inner wall of the circular shell, and is also rotatably connected with the annular part, and the arc-shaped blades are partially overlapped in sequence to form the adjustable collimation hole structure;
when the annular component and the circular shell rotate mutually, the arc-shaped blades are driven to move so as to adjust the size of the cross section of the adjustable collimation hole structure.
4. The radioactivity adaptive measurement device of claim 2, wherein the adjustable shield assembly comprises:
a circular housing;
the annular component is arranged in the circular shell and is rotatably connected with the inner wall of the circular shell; the annular component is provided with an installation groove which forms a certain angle with the radial direction of the annular component;
the arc-shaped blades are provided with two mounting shafts and used for mounting the arc-shaped blades in the mounting grooves in the annular component;
when the annular component and the circular shell rotate mutually, the arc-shaped blades are driven to move so as to adjust the size of the cross section of the adjustable collimation hole structure.
5. The radioactivity adaptive measuring device according to claim 4, wherein an included angle between the mounting groove and the radial direction of the annular component is an acute angle of 20-70 degrees.
6. The radioactivity adaptive measurement device of claim 1, wherein the adjustable shielding assembly comprises a thickness adjustable structure.
7. The adaptive radioactivity measuring device of claim 1, wherein the adjustable shield assembly comprises:
a square housing, one side of which is provided with a plurality of openings arranged in parallel;
the square components are sequentially arranged inside the square shell; the square components are respectively matched with the openings in shape and correspond to the openings one by one; the square member is configured to move in the opening corresponding thereto;
and the air cylinder is arranged to be connected with the square part and is used for driving the square part to move in the opening matched with the square part under the control of the servo assembly.
8. The radioactivity adaptive measurement device of claim 1, wherein the adjustable shield assembly comprises:
a square housing having an opening formed in one side surface thereof;
a plurality of square members placed at set positions in the storage box; the square component is arranged to be placed into the square shell through the opening;
the guide rail is arranged above the square shell;
and the movable gripper assembly is movably connected with the guide rail and is used for gripping a specific square part in the storage box and putting the square part into the square shell.
9. The adaptive radioactivity measuring device of claim 8, wherein the movable gripper assembly comprises a movable telescoping robotic arm, one end of the telescoping robotic arm is movably connected to the guide rail, and the other end of the telescoping robotic arm is provided with a rotatable mechanical gripper.
10. The adaptive radioactivity measuring device of claim 9, wherein the square housing is internally provided with a guide groove for facilitating the insertion or extraction of the movable gripper assembly into or out of the square member, and the structure of the guide groove is matched with that of the square member.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116632605A (en) * | 2023-07-25 | 2023-08-22 | 常州嘉容电子有限公司 | Production equipment and production process of low-temperature patch aluminum electrolytic capacitor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116632605A (en) * | 2023-07-25 | 2023-08-22 | 常州嘉容电子有限公司 | Production equipment and production process of low-temperature patch aluminum electrolytic capacitor |
| CN116632605B (en) * | 2023-07-25 | 2023-10-03 | 常州嘉容电子有限公司 | Production equipment and production process of low-temperature patch aluminum electrolytic capacitor |
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