Calibration and inspection device for electromagnetic radiation detector

Abstract

The utility model relates to a calibration and inspection device for an electromagnetic radiation detector. The calibration inspection device comprises a metal shielding box, the metal shielding box comprises a box body and a box body door, and a placement structure for fixedly placing an electromagnetic radiation detector is arranged in the box body. A zero marking control panel is arranged in the box body, the zero marking control panel is connected with a communication line, the communication line is used for being connected with an electromagnetic radiation detector, and a zero marking key used for sending a zero marking instruction to the zero marking control panel is arranged outside the box body. A simulation radiation source is arranged in the box body, a power interface connected with the simulation radiation source is arranged outside the box body, and an electrifying switch connected with the simulation radiation source is arranged outside the box body. The whole calibration process is carried out in the metal shielding box and is not radiated by external electromagnetic signals. Moreover, after zero marking is completed, the simulated radiation source is turned on, and the electromagnetic radiation detector can be inspected to inspect whether the numerical value of the electromagnetic radiation detector is correctly displayed or not.

Description

Technical Field

[0001] This utility model relates to the field of equipment inspection technology, specifically to a calibration and inspection device for an electromagnetic radiation detector. Background Technology

[0002] An electromagnetic radiation detector is an instrument that monitors electric fields, magnetic fields, and radio frequencies. Its built-in sensors detect these signals, process them through integrated circuits, and display the radiation value digitally on the screen. However, inconsistencies exist in electronic components during production. To ensure all products display "0" in the absence of radiation sources and maintain consistent baseline values, manual algorithm compensation is required for each electromagnetic radiation detector during calibration testing. Calibration and testing of electromagnetic radiation detectors are essential to ensure the objectivity and accuracy of the instrument's data. Furthermore, calibration and testing require specific environments free of electric, magnetic, and radio frequencies. However, in manufacturing environments, electromagnetic radiation from electrical equipment interferes with the instruments being calibrated and tested, hindering proper compensation operations and testing. Creating an electromagnetic radiation-free environment in a production workshop is challenging. Utility Model Content

[0003] The purpose of this invention is to provide a calibration and testing device for an electromagnetic radiation detector, so as to solve the technical problem that electromagnetic radiation detectors in the prior art are easily affected by external electromagnetic radiation signals during calibration and testing, resulting in inaccurate calibration.

[0004] To achieve the above objectives, the present invention provides a calibration and testing device for an electromagnetic radiation detector, which adopts the following technical solution: An electromagnetic radiation detector calibration and testing device includes a metal shielding box, comprising a box body and a box door. The box body contains a placement structure for fixing the electromagnetic radiation detector. A zeroing control board is located inside the box body, connected to a communication line for connecting to the electromagnetic radiation detector. A zeroing button is located outside the box body for sending zeroing commands to the zeroing control board. A simulated radiation source is located inside the box body, and a power interface connected to the simulated radiation source is located outside the box body. A power switch connected to the simulated radiation source is also located outside the box body.

[0005] The placement structure includes a placement block, on which a limiting groove is provided for the electromagnetic radiation detector to be placed.

[0006] The placement block is movably installed inside the box to allow for position adjustment of the electromagnetic radiation detector on it.

[0007] The bottom wall of the box is provided with a first elongated hole, and the placement block is provided with a second elongated hole. The length directions of the first elongated hole and the second elongated hole are perpendicular to each other, and fastening screws are installed in the first elongated hole and the second elongated hole.

[0008] The placement block is made of bakelite.

[0009] The enclosure door is equipped with a transparent window facing the electromagnetic radiation detector.

[0010] The box is equipped with an isolation plate to divide the inner cavity of the box into a first cavity and a second cavity. The simulated radiation source is set in the first cavity, and the placement structure is set in the second cavity.

[0011] The box is equipped with a handle.

[0012] The beneficial effects of this invention are as follows: The electromagnetic radiation detector to be calibrated and tested is placed in a metal shielded box. A communication cable connects the detector to a zeroing control board. The zeroing button sends a signal to the control board, which then controls the detector to perform zeroing. The entire calibration process takes place inside the metal shielded box, unaffected by external electromagnetic radiation. Furthermore, after zeroing, a simulated radiation source can be turned on to test the detector and verify the accuracy of its displayed values. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of an electromagnetic radiation detector calibration and testing device of this utility model;

[0014] Figure 2 yes Figure 1 Internal structure diagram;

[0015] Figure 3 yes Figure 2 A schematic diagram of the structure after removing the electromagnetic radiation detector. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0017] It should be noted that, unless otherwise defined, the technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The use of "belonging" in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this invention.

[0018] An embodiment of the electromagnetic radiation detector calibration and testing device of this utility model is as follows: Figures 1-3As shown, the device includes a metal shielding box, which comprises a box body 1 and a box door 2, hinged together for easy opening and closing. A handle 6 is provided on the box body for easy movement and carrying. In this embodiment, two handles 6 are provided, spaced apart from each other on the left and right sides, for easy carrying by the user.

[0019] The enclosure 1 contains a placement structure for the electromagnetic radiation detector 14. This structure includes a placement block 11 made of bakelite, which has a limiting groove 18 for the electromagnetic radiation detector 14. In this embodiment, the placement block 11 is movably mounted within the enclosure to allow for positional adjustment of the electromagnetic radiation detector. Specifically, the bottom wall of the enclosure has a first elongated hole 12, and the placement block 11 has a second elongated hole 13. The lengths of the first and second elongated holes are perpendicular to each other, and fastening screws (not shown in the figure) are inserted into both holes to flexibly adjust the position of the electromagnetic radiation detector. In this embodiment, the enclosure 1 contains an isolation plate 8 made of acrylic to divide the internal cavity into a first cavity 9 and a second cavity 10. A simulated radiation source 17 is located in the first cavity 9, and the placement block 11 is located in the second cavity. The enclosure door 2 is equipped with a transparent window 3 facing the electromagnetic radiation detector. The isolation plate 8 can protect the operators from the danger of high voltage electric shock and protect the simulated radiation source from damage. The use of transparent acrylic can provide physical isolation without affecting the observation of the simulated radiation source's operation.

[0020] Inside the enclosure (in the second chamber) is a zeroing control board 16, connected to a communication cable 15 for connection to the electromagnetic radiation detector 14. Outside the enclosure is a zeroing button 7 for sending zeroing commands to the zeroing control board. The zeroing button 7 sends a zeroing signal to the zeroing control board 16, which then sends a zeroing command to the electromagnetic radiation detector 14, achieving zeroing of the instrument. A buzzer is installed on the zeroing control board to sound an alarm upon completion of zeroing. A lithium battery is also installed on the zeroing control board for power supply. Inside the enclosure (in the first chamber) is a simulated radiation source 17 for generating electromagnetic radiation signals; its power can be adjusted to regulate the radiation intensity. Outside the enclosure is a power interface 4 connected to the simulated radiation source 17, and a power switch 5 connected to the simulated radiation source 17 to control its power supply.

[0021] During use, disconnect the power supply via the power switch to turn off the simulated radiation source. Connect the zeroing control board and the electromagnetic radiation detector using the communication cable. Place the electromagnetic radiation detector to be calibrated in the limiting slot and close the enclosure door, ensuring the entire calibration process is conducted in an electromagnetically shielded environment. Then, send a zeroing command to the zeroing control board using the zeroing button. Once the electromagnetic radiation detector is successfully zeroed, a buzzer will sound to alert the operator. The operator can see a value of "0" on the electromagnetic radiation detector through the transparent window, indicating successful zeroing. Next, turn on the power switch to activate the simulated radiation source and observe the displayed value on the electromagnetic radiation detector to verify its accuracy.

[0022] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "joined" should be interpreted broadly. For example, the term "joined" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not imply that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0024] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0025] In other embodiments of this utility model, an indicator light may also be provided on the zeroing control board to remind the operator; a buzzer and an indicator light may be provided on the zeroing control board at the same time; the housing and the housing door may be fastened together or pushed and pulled together; the placement block may not be provided with a limiting groove, but with a clamp or other clamping and fixing structure to fix the electromagnetic radiation detector on the placement block; the placement block may also be made of other insulating materials.

Claims

1. A calibration and testing device for an electromagnetic radiation detector, characterized in that: The system includes a metal shielding box, which comprises a box body and a box door. Inside the box is a mounting structure for a fixed electromagnetic radiation detector. Inside the box is a zeroing control board connected to a communication line for connecting to the electromagnetic radiation detector. Outside the box is a zeroing button for sending zeroing commands to the zeroing control board. Inside the box is a simulated radiation source, and outside the box is a power interface connected to the simulated radiation source, as well as a power switch connected to the simulated radiation source.

2. The electromagnetic radiation detector calibration and testing device according to claim 1, characterized in that: The placement structure includes a placement block, on which a limiting groove is provided for the electromagnetic radiation detector to be placed.

3. The electromagnetic radiation detector calibration and testing device according to claim 2, characterized in that: The placement block is movably installed inside the box to allow for position adjustment of the electromagnetic radiation detector on it.

4. The electromagnetic radiation detector calibration and testing device according to claim 3, characterized in that: The bottom wall of the box is provided with a first elongated hole, and the placement block is provided with a second elongated hole. The length directions of the first elongated hole and the second elongated hole are perpendicular to each other, and fastening screws are installed in the first elongated hole and the second elongated hole.

5. The electromagnetic radiation detector calibration and testing device according to claim 2, characterized in that: The placement block is made of bakelite.

6. The electromagnetic radiation detector calibration and testing device according to claim 1, characterized in that: The enclosure door is equipped with a transparent window facing the electromagnetic radiation detector.

7. The electromagnetic radiation detector calibration and testing device according to claim 1, characterized in that: The box is equipped with an isolation plate to divide the inner cavity of the box into a first cavity and a second cavity. The simulated radiation source is set in the first cavity, and the placement structure is set in the second cavity.

8. The calibration and testing device for an electromagnetic radiation detector according to any one of claims 1-7, characterized in that: The box is equipped with a handle.

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