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Electromagnetic interference detecting device

A detection device, electromagnetic interference technology, applied in the direction of measuring device, electromagnetic field characteristics, measuring electricity, etc., can solve the problems of high cost and complex structure, and achieve the effect of low cost and simple structure

Inactive Publication Date: 2012-05-16
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wireless transmission of signals can expand the working range, but an additional signal amplifier is required, the structure is complex, and the cost is relatively high

Method used

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Embodiment Construction

[0008] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0009] see figure 1 and figure 2 , which is an electromagnetic interference detection device 100 provided in an embodiment of the present invention, and is used for detecting a noise signal of a noise signal source 40 . It includes a detector 10 , a signal receiving device 20 and a signal display device 30 . The signal emitted by the noise signal source 40 is converted into a corresponding wireless signal by the detector 10 , and the wireless signal is received by the signal receiving device 20 and finally displayed by the signal display device 30 .

[0010] The detector 10 is used to contact the noise signal source 40 at a single point and convert the noise signal into a corresponding wireless signal. see figure 2 , the detector 10 includes an insulating rod 11 , a wire 12 and a probe 13 . The wire 12 is wound from one end of the in...

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Abstract

The invention relates to an electromagnetic interference detecting device which is used for detecting a noise signal of a noise signal source and comprises a detector, a signal receiver and a signal display unit, wherein the detector is used for being in single point contact with the noise signal source and switching the noise signal into a wireless signal with respect to the noise signal, the signal receiver is used for receiving the wireless signal emitted from the detector, the signal display unit is used for displaying the wireless signal transferred from the signal receiver, and the signal receiver is electrically connected with the signal display unit. The detector comprises an insulating rod, a probe and a conducting wire, the conducting wire is wound to the other end from one end of the insulating rod spirally, and the probe is connected with one end of the conducting wire and extends away from the insulating rod from one end of the insulating rod.

Description

technical field [0001] The invention relates to a detection device, in particular to an electromagnetic interference detection device. Background technique [0002] Before leaving the factory, electronic products must pass the Electro Magnetic Interference (EMI) test in order to be qualified products. In addition, in the early stage of development of electronic products such as circuit boards, it is necessary to detect design problems through EMI detection of small components, especially to find the specific location and radiation intensity of noise signal sources in circuit boards, so as to improve them as soon as possible. A traditional EMI detection device generally includes a detector, a signal receiving device and a signal display device. During the EMI measurement process of small components, the noise signal, especially the low-frequency noise signal, is generally weak. In order to ensure effective measurement, it is often necessary to directly connect the detector t...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R29/08
Inventor 施侑廷
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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