A method for improving resistance of display of OCT equipment to electromagnetic field interference radiated by radio frequency

A technology of radio frequency radiation and radio frequency interference, which is applied in the fields of improving OCT equipment display anti-radiofrequency radiation electromagnetic field interference, and medical display anti-radiofrequency radiation electromagnetic field radiation technology, to achieve the effect of reducing requirements, widely adapting, and improving versatility

Inactive Publication Date: 2018-12-21
南京沃福曼医疗科技有限公司
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AI-Extracted Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to invent a method for improving the anti-radiofrequency radiation electromagnetic field interference of the...
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Abstract

A method for improving the resistance of display of OCT equipment to electromagnetic field interference radiated by radio frequency is characterized in that firstly, a shield cover originally mountedon a display control panel is connected with a metal plate by a cop sheet or a copper connecting tape, so that the potential generated by external radio frequency interference of the shield cover is communicated with the ground through the metal plate; Secondly, the coupling interference of 28V/m RF interference to the wire is reduced by connecting magnetic loops in series in the longer traces. The invention solves the problem of anti-radio frequency interference of the display, has simple method, improves the universality of the display, and reduces the requirement on the anti-interference grade of the display.

Application Domain

Screening casingsCatheter +4

Technology Topic

Radio frequencyElectromagnetic field +7

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  • A method for improving resistance of display of OCT equipment to electromagnetic field interference radiated by radio frequency

Examples

  • Experimental program(1)

Example Embodiment

[0015] In the following, the present invention will be further described in conjunction with the embodiments.
[0016] A method to improve the resistance of the OCT equipment display to radio frequency radiation electromagnetic field interference. First, use a copper sheet or a copper connection tape to connect the shielding cover originally installed on the display control board to the metal plate, so that the shielding cover is affected by external radio frequency interference. The potential is connected to the earth through the metal plate; secondly, the opening on the original shielding cover is blocked with copper to prevent the radiated electromagnetic field from directly entering the shielding cover and causing breakdown of the sensitive circuit; thirdly, the longer length of the control board The wire is connected in series with a magnetic ring to reduce the coupling interference of 28V/m radio frequency interference to the wire. This is because under 28V/m radio frequency interference, it is easy to couple the interference to the wire, thereby affecting the normal display of the display.
[0017] The parts not involved in the present invention are the same as the prior art or can be implemented by the prior art.

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