Calibration tool for microwave anechoic chamber test of radio direction finder
By designing a fixing plate and boss structure for the calibration fixture, the problems of inconvenient wiring and repeated calibration of the radio direction finder in microwave anechoic chamber testing were solved, realizing convenient fixing and one-time calibration of the radio direction finder.
Patent Information
- Application Number
- CN202520417623.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-11
AI Technical Summary
In microwave anechoic chamber testing, it is inconvenient to directly connect the radio direction finder to the robotic arm for wiring, and the position of the radio direction finder needs to be recalibrated for each test.
A calibration fixture was designed, including a fixing plate and a boss, which are fixed to a robotic arm and a radio direction finder through bolt holes to achieve one-time calibration. A hollow area is set on the boss to facilitate wiring.
It enables one-time calibration of the radio direction finder in microwave anechoic chamber testing, avoiding repeated calibration steps and providing a convenient wiring path.
Smart Images
Figure CN223955798U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to direction finder technical field, specifically, relate to a kind of for radio direction finder microwave anechoic chamber test's calibration tooling. BACKGROUND
[0002] Radio direction finder is a device for determining the direction of radio signal source, widely used in navigation, search and rescue, amateur radio activities and electromagnetic environment monitoring fields, by receiving and analyzing radio wave signal, the direction angle of the source of emission is calculated, its core function is to locate signal source direction. Microwave anechoic chamber is a facility for radio frequency measurement and test, by laying wave-absorbing material in shielded room, reduce the reflection of electromagnetic wave, to simulate the environment of free space, its composition includes shielded room (prevent external electromagnetic interference from entering, while preventing internal signal leakage), wave-absorbing material (for reducing the reflection of electromagnetic wave, improve the accuracy of test) and test equipment (including turntable, antenna, monitoring system, fire alarm system etc.).
[0003] At present, when radio direction finder microwave anechoic chamber test is carried out, radio direction finder is connected with the end of mechanical arm on turntable, one end of mechanical arm is connected with turntable, the other end of mechanical arm is connected with radio direction finder, and the direction finding data of radio direction finder is simulated and obtained by turntable rotation and mechanical arm swing, but the following problems exist in this kind of way: one is that radio direction finder is directly connected with one end of mechanical arm, which is not convenient for wiring, two is that it needs to be recalibrated every time, that is, to adjust the position of radio direction finder. UTILITY MODEL CONTENT
[0004] To solve the above problems existing in the prior art, the utility model provides a kind of calibration tooling for radio direction finder microwave anechoic chamber test, the tooling includes fixed plate, the middle part of one side of the fixed plate is equipped with boss, the boss is equipped with a plurality of first bolt holes passing through the boss and the fixed plate, the first bolt hole is used to connect the bottom plate of tooling and mechanical arm, a plurality of first hollow areas for wiring are provided on the boss, the other side of the fixed plate is equipped with a plurality of second bolt holes, and the second bolt hole is used to connect the tooling and the radio direction finder.
[0005] The utility model discloses a through following technical scheme realizes: through being equipped with the boss in the middle of fixed plate one side, the boss is used for lifting the distance between tooling and mechanical arm bottom plate, then is equipped with a plurality of first bolt holes that pass through the boss and fixed plate, based on first bolt hole, completes the fixing between calibration tooling and mechanical arm bottom plate, and is equipped with a plurality of second bolt holes on the other side of fixed plate, based on second bolt hole, fixes radio direction finder on calibration tooling, when carrying out radio direction finder microwave darkroom test, first, through first bolt hole, fixes calibration tooling with the bottom plate of mechanical arm, completes the calibration adjustment of calibration tooling, again through second bolt hole, fixes radio direction finder on calibration tooling, because calibration tooling has completed calibration compared with mechanical arm, radio direction finder does not need to carry out second calibration, and still be equipped with a plurality of first hollow areas on the boss, and the convenience wiring is walked.
[0006] As an optional technical scheme, the boss is a circular boss.
[0007] As an optional technical scheme, the tooling further includes a plurality of first screw rods and first nuts, the first screw rods pass through the fixed plate, the boss and the bottom plate of the mechanical arm in sequence, and are locked by the first nuts.
[0008] As an optional technical scheme, the tooling further includes a plurality of first screws, the first screws pass through the radio direction finder and the fixed plate in sequence, and are locked.
[0009] As an optional technical scheme, the fixed plate further includes a plurality of third bolt holes around the fixed plate, the third bolt holes are used for connecting the tooling and the radome of the radio direction finder.
[0010] As an optional technical scheme, the tooling further includes a plurality of second screws, the second screws pass through the radome of the radio direction finder and the fixed plate in sequence, and are locked.
[0011] As an optional technical scheme, the fixed plate is provided with a plurality of second hollow areas for heat dissipation around the fixed plate.
[0012] One or more technical solutions of the utility model have at least the following technical effects or advantages:
[0013] The utility model discloses a kind of calibration tool for radio direction finder microwave anechoic chamber test, when radio direction finder microwave anechoic chamber test is carried out, first, calibration tool is fixed with the bottom plate of mechanical arm by first bolt hole, the calibration adjustment of calibration tool is completed, radio direction finder is fixed on calibration tool by second bolt hole, since calibration tool has been completed calibration compared with mechanical arm, radio direction finder does not need to carry out secondary calibration, simultaneously, a plurality of first hollow areas are also provided on boss, and wiring is facilitated. BRIEF DESCRIPTION OF DRAWINGS
[0014] The drawings described herein are used to provide further understanding of the embodiments of the utility model, form part of the utility model, and do not constitute limitation to the embodiments of the utility model;
[0015] Figure 1 It is a kind of calibration tool structure schematic diagram for radio direction finder microwave anechoic chamber test in the utility model,
[0016] Figure 2 It is a kind of calibration tool front view schematic diagram for radio direction finder microwave anechoic chamber test in the utility model,
[0017] Figure 3 It is a kind of calibration tool back view schematic diagram for radio direction finder microwave anechoic chamber test in the utility model,
[0018] Wherein, 1-fixed plate, 2-boss, 3-first bolt hole, 4-first hollow area, 5-second bolt hole, 6-second hollow area, 7-third bolt hole. DETAILED DESCRIPTION
[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the drawings and specific embodiments.It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.
[0020] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from the scope described herein, therefore, the protection scope of the utility model is not limited by the specific embodiments disclosed below.
[0021] EMBODIMENT
[0022] Please refer to Figure 1 、 Figure 2 And Figure 3 , Figure 1 It is a kind of calibration tool structure schematic diagram for radio direction finder microwave anechoic chamber test in the utility model, Figure 2It is a front view of the calibration tool for the microwave darkroom test of the radio direction finder, Figure 3 It is a back view of the calibration tool for the microwave darkroom test of the radio direction finder, comprising: a fixed plate 1, the middle part of one side of the fixed plate 1 is provided with a boss 2, a plurality of first bolt holes 3 penetrating the boss 2 and the fixed plate 1 are arranged on the boss 2, the first bolt holes 3 are used for connecting the tool and the bottom plate of the mechanical arm, a plurality of first hollow areas 4 for wiring are arranged on the boss 2, and a plurality of second bolt holes 5 are arranged on the other side of the fixed plate 1, and the second bolt holes 5 are used for connecting the tool and the radio direction finder.
[0023] The utility model discloses a calibration tool for the microwave darkroom test of the radio direction finder, comprising a fixed plate 1, the middle part of one side of the fixed plate 1 is provided with a boss 2, the boss 2 adopts the round boss, and the round boss is used for lifting the distance between the calibration tool and the bottom plate of the mechanical arm, a plurality of first bolt holes 3 penetrating the boss 2 and the fixed plate 1 are further arranged on the boss 2, the first bolt holes 3 are used for connecting the tool and the bottom plate of the mechanical arm, a plurality of second bolt holes 5 are further arranged on the other side of the fixed plate 1, and the second bolt holes 5 are used for connecting the tool and the radio direction finder.
[0024] Further, the boss 2 is a round boss.
[0025] Further, the tool further comprises a plurality of groups of first screw rods and first nuts, the first screw rods sequentially pass through the fixed plate 1, the boss 2 and the bottom plate of the mechanical arm, and are locked through the first nuts.
[0026] Further, the tool further comprises a plurality of groups of first screws, the first screws sequentially pass through the radio direction finder and the fixed plate 1, and are locked.
[0027] Further, a plurality of third bolt holes 7 are further arranged around the fixed plate 1, and the third bolt holes are used for connecting the tool and the radome of the radio direction finder.
[0028] Further, the tooling further comprises a plurality of second screws, which are sequentially threaded through the radome of the radio direction finder and the fixing plate 1, and locked.
[0029] The fixing plate 1 is further provided with a plurality of third bolt holes around the periphery, used for fixing the radome of the radio direction finder.
[0030] Further, the fixing plate 1 is provided with a plurality of second hollow areas 6 around the periphery for heat dissipation.
[0031] The fixing plate 1 is further provided with a plurality of second hollow areas 6 around the periphery for heat dissipation.
[0032] Although the preferred embodiments of the present application have been described, those skilled in the art who once know the basic creative concept can make further changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.
[0033] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.
Claims
1. A calibration fixture for radio direction finder microwave anechoic chamber testing, characterized by, The tooling includes a fixed plate, the middle of one side of the fixed plate is provided with a boss, the boss is provided with a plurality of first bolt holes penetrating the boss and the fixed plate, the first bolt holes are used for connecting the tooling and the bottom plate of the mechanical arm, the boss is provided with a plurality of first hollow areas for wiring, the other side of the fixed plate is provided with a plurality of second bolt holes, the second bolt holes are used for connecting the tooling and the radio direction finder.
2. A calibration fixture for radio direction finder microwave anechoic chamber testing according to claim 1, characterized in that, The boss is a circular boss.
3. A calibration fixture for radio direction finder microwave anechoic chamber testing according to claim 1, characterized in that, The tooling further includes a plurality of groups of first screws and first nuts, the first screws pass through the fixed plate, the boss and the bottom plate of the mechanical arm in sequence and are locked by the first nuts.
4. The calibration fixture for microwave anechoic chamber testing of a radio direction finder according to claim 1, characterized in that, The tooling further includes a plurality of groups of first screws, the first screws pass through the radio direction finder and the fixed plate in sequence and are locked.
5. The calibration fixture for radio direction finder microwave anechoic chamber testing of claim 1, wherein, The fixed plate is further provided with a plurality of third bolt holes around, the third bolt holes are used for connecting the tooling and the radome of the radio direction finder.
6. A calibration fixture for radio direction finder microwave anechoic chamber testing according to claim 5, characterized in that, The tooling further includes a plurality of groups of second screws, the second screws pass through the radome of the radio direction finder and the fixed plate in sequence and are locked.
7. The calibration fixture for radio direction finder microwave anechoic chamber testing of claim 1, wherein, The fixed plate is provided with a plurality of second hollow areas for heat dissipation around.