CN203535124U - Scanning mechanism of electromagnetic compatible scanner - Google Patents

Abstract

A scanning mechanism of an electromagnetic compatibility scanner, including a scanning platform for placing the measured components, a movable frame that spans both ends of the scanning platform and can move back and forth along the scanning platform, and a movable frame that can move left and right along the top beam is provided on the top beam of the movable frame. The sliding table is equipped with a slider that can move vertically up and down, and a near-field probe is fixed on the slider. The utility model adopts a near-field probe that can move three-dimensionally, and can measure the measured components placed on the scanning platform. The three-dimensional scanning detection satisfies the precise measurement of the electromagnetic field distribution of the tested component, and expands the range of detection varieties. The moving mechanism of each axis can precisely control the corresponding movable frame, slide table and slider.

Description

Scanning Mechanism of Electromagnetic Compatibility Scanner

technical field

The utility model relates to a scanner, in particular to a scanning mechanism of an electromagnetic compatibility scanner capable of expanding the scanning range.

Background technique

EMC scanners can accurately measure the electromagnetic field distribution of individual electronic components, PCB circuit boards, cables and complete machine products, realize detection and analysis, locate EMC sources, identify problem frequencies, track sensitive components, etc., but due to the near-field probe It can only be translated and detected on the facade, resulting in a small detection range, which cannot meet the detection requirements of larger components, and the scanning platform has no fixing parts, which cannot accurately fix the measured components, which directly affects the detection quality.

Utility model content

The utility model mainly solves the technical problem that the near-field probe of the existing scanner can only be translated on the vertical surface, resulting in a small detection range; it provides a scanning mechanism of the electromagnetic compatibility scanner that can expand the scanning range

In order to solve the above-mentioned technical problems, the utility model mainly adopts the following technical solutions:

The scanning mechanism of an electromagnetic compatibility scanner of the utility model includes a scanning platform for placing the measured components, a movable frame that straddles both ends of the scanning platform and can move back and forth along the scanning platform, and a Y-axis moving mechanism that controls the movement of the movable frame. The movable frame is in the shape of a gantry frame, and the top beam of the movable frame is provided with a sliding table that can move left and right along the top beam and an X-axis moving mechanism that controls the movement of the sliding table. The sliding table is provided with a sliding table that can move vertically up and down The block and the Z-axis moving mechanism that controls the movement of the slider. The near-field probe is fixed on the slider. The near-field probe that can move in three dimensions can perform three-dimensional scanning and detection of the measured component placed on the scanning platform, satisfying It improves the accurate measurement of the electromagnetic field distribution of the tested component, expands the range of detection varieties, and the moving mechanism of each axis can accurately control the corresponding movable frame, slide table and slider.

As preferably, the near-field probe is a straight rod type, the tail of the near-field probe is fixedly connected to the bottom of the slider, the scanning ring of the near-field probe is vertically arranged and parallel to the facade of the movable frame, and the scanning ring is vertical The layout facilitates the detection of the electromagnetic field on the facade of the component under test.

Preferably, the near-field probe is bent at right angles, the tail of the near-field probe is vertical and fixed to the bottom of the slider, the detection ring of the near-field probe is horizontally arranged and parallel to the surface of the scanning platform, and the near-field The detection ring of the probe is arranged horizontally, so that the scanning range of the detection ring is expanded to the entire scanning platform, which not only expands the detection range, meets the detection requirements of larger volume components, but also facilitates the placement of the tested components, making the detection process more convenient and fast .

Preferably, the scanning platform is provided with a fixing frame for fixing the measured element, which can ensure that the measured element can be firmly installed on the scanning platform, the installation position is accurate, and it will not move during the scanning process, which improves the scanning quality.

Preferably, the surface of the scanning platform is provided with a scale line indicating the position of the measured element, and the fixing part of the measured element can be accurately placed on the scanning platform according to needs, so as to improve the detection quality.

The beneficial effects of the utility model are: the scanner adopts a near-field probe capable of three-dimensional movement, which can perform three-dimensional scanning and detection on the measured component placed on the scanning platform, and achieve accurate measurement of the electromagnetic field distribution of the measured component. The ring expands the detection range of the DUT to meet the detection of larger volume DUTs.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

Fig. 2 is another structural diagram of the utility model.

In the figure 1. Scanning platform, 2. Movable frame, 3. Slider, 4. Slider, 5. Near-field probe, 6. Scale line.

Detailed ways

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Embodiment: The scanning mechanism of a kind of electromagnetic compatibility scanner of this embodiment, as shown in Figure 1, comprises the scanning platform 1 that places the element under test, straddles the two ends of the scanning platform and can move back and forth along the movable frame 2 of the scanning platform And the Y-axis moving mechanism that controls the movement of the movable frame. The movable frame is in the shape of a gantry frame. The top beam of the movable frame is designed with a sliding table 3 that can move left and right along the top beam and an X-axis moving mechanism that controls the movement of the sliding table. It is designed with a slider 4 that can move vertically up and down and a Z-axis moving mechanism that controls the movement of the slider. A near-field probe 5 is installed on the slider. The near-field probe is bent at a right angle, and the tail of the near-field probe is perpendicular to the slider. The bottom of the block is fixed, and the detection ring of the near-field probe is arranged horizontally and parallel to the surface of the scanning platform. The near-field probe can be translated along the XY axis along the scanning platform, and can also move up and down along the z-axis direction. It can be placed on the scanning platform Three-dimensional scanning detection of the tested component on the surface, of course, the near-field probe can also be a straight rod shape, as shown in Figure 2, which can be used to detect smaller tested components or only the elevation range of the tested component. The surface of the scanning platform is printed with a scale line 6 indicating the position of the tested component, and a fixing frame is fixed on the scanning platform for fixing the tested component.

When in use, clamp the measured element on the fixed frame, and fix the fixed frame on the corresponding position of the scanning platform according to the requirements, and then, the controller controls the movable frame, the slider and the movement of the slider respectively according to the detection requirements and range , the near-field probe can perform three-dimensional scanning on the tested component, and send the scanned value to the controller for spectrum analysis and calculation, and finally print out the electromagnetic radiation detection result or transmit it to the upper-level computer.

The above descriptions do not limit the utility model, and the utility model is not limited to the examples described above, any changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model are all It should be regarded as the protection scope of the present utility model.

Claims (5)

1. A scanning mechanism of an electromagnetic compatibility scanner, characterized in that: comprise a scanning platform (1) for placing the measured element, a movable frame (2) and a control activity that can move forward and backward along the scanning platform across both sides of the scanning platform The Y-axis moving mechanism for frame movement, the movable frame is in the shape of a gantry frame, and the top beam of the movable frame is provided with a sliding table (3) that can move left and right along the top beam and an X-axis moving mechanism that controls the sliding table to move. A slide block (4) capable of vertically moving up and down and a Z-axis moving mechanism for controlling the movement of the slide block are provided on the slide table, and a near-field probe (5) is fixed on the slide block. 2. The scanning mechanism of an electromagnetic compatibility scanner according to claim 1, characterized in that: the near-field probe (5) is a straight rod type, and the tail of the near-field probe is in contact with the bottom of the slider (4). The ends are fixedly connected, and the scanning ring of the near-field probe is vertically arranged and parallel to the facade of the movable frame (2). 3. The scanning mechanism of a kind of electromagnetic compatibility scanner according to claim 1, characterized in that: the near-field probe (5) is bent at a right angle, and the tail of the near-field probe is perpendicular to the slider (4 ) bottom end is affixed, and the detection ring of the near-field probe is arranged horizontally and parallel to the surface of the scanning platform (1). 4. The scanning mechanism of an electromagnetic compatibility scanner according to claim 1, 2 or 3, characterized in that: the scanning platform (1) is provided with a fixing frame for fixing the measured element. 5. The scanning mechanism of an electromagnetic compatibility scanner according to claim 4, characterized in that: the surface of the scanning platform (1) is provided with a scale line (6) indicating the position of the measured element.

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