CN101526573B - Electromagnetic interference detecting device - Google Patents
Electromagnetic interference detecting device Download PDFInfo
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- CN101526573B CN101526573B CN2008103004935A CN200810300493A CN101526573B CN 101526573 B CN101526573 B CN 101526573B CN 2008103004935 A CN2008103004935 A CN 2008103004935A CN 200810300493 A CN200810300493 A CN 200810300493A CN 101526573 B CN101526573 B CN 101526573B
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- electromagnetic interference
- detecting device
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- insulating bar
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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
The present invention relates to a kind of pick-up unit, relate in particular to a kind of electromagnetic interference detecting device.
Background technology
Electronic product is before dispatching from the factory, and (Electro Magnetic Interference EMI) detects, and the side is specification product must to pass through electromagnetic interference (EMI).At the initial stage of development of electronic product such as circuit board, need detect through the EMI of tiny parts and find problems in Design in addition, especially will find the particular location and the radiation intensity in the noise signal source in the circuit board, in the hope of being improved as early as possible.Traditional EMI pick-up unit generally comprises a detector, a signal receiving device and a signal display apparatus.In the EMI of tiny parts measuring process, noise signal especially low-frequency noise signal is general fainter, for guaranteeing effective measurement, often need directly be connected detector and transmission signals with signal receiving device.But utilize wired mode transmission signals, very inconvenient when the EMI that carries out tiny parts detects, waste wire rod and working range are limited.If adopt wireless transmission; Then need in this detector, to install a signal amplifier and an emitting antenna, the detection body activation signal source in the detector, transfer to the signal amplifier amplification to signal after; Be converted into corresponding wireless signal to noise signal again, nationality is sent by emitting antenna.Said wireless mode transmission signals can broaden the scope of work, but needs other plus signal amplifier, complex structure, and cost is than higher.
Summary of the invention
There is mirror so, is necessary to provide a kind of lower-cost wireless electromagnetic interference detecting apparatus.
A kind of electromagnetic interference detecting device is used to detect the noise signal of a noise signal source, and it comprises a detector, a signal receiving device and a signal display apparatus.Said detector is used for single-point and contacts said noise signal source and be converted into corresponding wireless signal with it to said noise signal; Said signal receiving device is used to receive the wireless signal of said detector emission, and said signal display apparatus is used to the wireless signal that shows that said signal receiving device sends.Said signal receiving device is electrically connected with said signal display apparatus.Said detector comprises an insulating bar, a probe and a lead.Said lead from an end of insulating bar in the shape of a spiral shape be wound to the other end, said probe links to each other with an end of lead, said probe from insulating bar one end to extending away from the insulating bar direction.
With respect to prior art; The detector that electromagnetic interference detecting device of the present invention uses comprise an insulating bar and in the shape of a spiral shape be wound in the lead on the said insulating bar, the spiral through lead twines, and can make noise signal obtain amplifying and converting into corresponding wireless signal; Need not other plus signal amplifier and antenna; Can realize the function of conversion of signals and amplification, and with low cost, simple in structure.
Description of drawings
The structural representation of the electromagnetic interference detecting device that Fig. 1 provides for embodiment of the present invention.
The structural representation of the detector of the electromagnetic interference detecting device that Fig. 2 provides for embodiment of the present invention.
Embodiment
To combine accompanying drawing that embodiment of the present invention is done further to describe in detail below.
See also Fig. 1 and Fig. 2, it is a kind of electromagnetic interference detecting device 100 that embodiment of the present invention provided, and is used to detect the noise signal of a noise signal source 40.It comprises a detector 10, a signal receiving device 20 and a signal display apparatus 30.The signal that said noise signal source 40 sends is converted into corresponding wireless signal after via detector 10, and this wireless signal is received by signal receiving device 20, is finally shown by said signal display apparatus 30.
Said detector 10 is used for single-point and contacts said noise signal source 40 and be converted into corresponding wireless signal to said noise signal.See also Fig. 2, said detector 10 comprises an insulating bar 11, a lead 12 and a probe 13.Said lead 12 is wound to the other end from an end of insulating bar 11, and said probe 13 links to each other with an end of lead 12, and it is positioned at insulating bar 11 1 ends and extends to outside the insulating bar 11.
Said insulating bar 11 comprises a detection portion 111 and an emission part 113 at least, and said detection portion 111 is positioned at probe 13 1 sides, and said emission part 113 is positioned at the end of insulating bar 11 away from probe 13.Noise signal source 40 for ease of to the tiny parts of electronic component is measured, and detection portion 111 needs more elongated, and the external diameter of said detection portion 111 is along reducing gradually away from insulating bar 11 directions, and in this embodiment, said detection portion 111 is coniform.After noise signal is passed through detector 10 and is converted wireless signal into and sends; For guaranteeing its intensity and transmitting boundary; The external diameter of said emission part 113 is along increasing gradually away from insulating bar 11 directions; Thereby make lead 12 radius of spin that twine on it along wireless signal transmitting to increasing gradually, can guarantee that the signal transmitting boundary becomes big.Be appreciated that said insulating bar 11 can be a cone, its outer its external diameter of detection portion to emission part without leave increases gradually.In this embodiment, between detection portion 111 and emission part 113, also have an extension 112, said extension 112 is a right cylinder.Be appreciated that said extension 112 is convenient to the winding of lead 12, the number of turn of winding is many more, and its signal is strong more.In addition, said extension 112 is convenient to grip.The material that is appreciated that said insulating bar 11 can be any insulating material, and in this embodiment, said insulating bar 11 is the plastic cement insulating bar.
Said lead 12 from an end of insulating bar 11 in the shape of a spiral shape be wound to the other end.The one of which end links to each other with probe 13, imports noise signal, can be known by Ampere's law, and said spirally-wound lead 12 structures can convert noise signal into wireless signal, and the number of turn of its winding is many more, and it is big more that signal amplifies.The conductor part that is wrapped in emission part 113 is an antenna end 121, and it is equivalent to an emitting antenna, goes out the wireless signal transmission of lead 12 conversions.Pound number for increasing to twine, guarantee the intensity of wireless signal, in this embodiment, between antenna segment 121 and probe 13, increase by a transport part 122, be wrapped on the extension 112 of insulating bar 11.For avoiding loss of signal, said lead 12 is preferably processed by the big conductor of conductance, and in this embodiment, said lead 12 is processed by argent.
Said probe 13 links to each other with an end of lead 12, said probe 13 from insulating bar 11 1 ends to extending away from insulating bar 11 directions.Said probe 13 is used for directly contacting with noise signal source 40, gives lead 12 noise signal transmission.Be appreciated that said probe 13 processed by the big conductor of conductance, in this embodiment, said probe 13 is processed by argent.It is understandable that said probe 13 can be one-body molded with lead 12.
Said signal receiving device 20 is used to receive the signal of said detector 10 emissions, and it is electrically connected with signal display apparatus 30.Be appreciated that said signal receiving device 20 can be the antenna that has the electromagnetic wave receiving function arbitrarily.In this embodiment, said signal receiving device 20 directly is transferred to signal display apparatus 30 after receiving noise signal.
Said signal display apparatus 30 is used to show said noise signal, is appreciated that said signal display apparatus 30 can be the display device that has the noise signal Presentation Function arbitrarily, and in this embodiment, said signal display apparatus 30 is a frequency spectrograph.Nationality can demonstrate the size and the intensity of noise signal by signal display apparatus 30.
Said electromagnetic interference detecting device 100 is when test; Nationality is by the noise signal source 40 in the tiny parts of 13 contacts of the probe in the detector 10; Nationality is amplified noise signal by transport part 122 and transfers to emission part 121; Emission part 121 amplifies the back to noise signal once more and sends signal, after signal receiving device 20 receives said noise signal, directly is transferred to signal display apparatus 30.Nationality can be sought out target noise signal source 40 by the frequency and the intensity of the noise signal of signal display apparatus 30 demonstrations.Because of probe 13 surface of contact are little, therefore can be applicable to the very intensive occasion of noise signal source.
With respect to prior art; The detector that electromagnetic interference detecting device of the present invention uses comprise an insulating bar and in the shape of a spiral shape be wound in the lead on the said insulating bar; Spiral through lead twines; Can make noise signal obtain amplifying and converting corresponding wireless signal into, increase successively, the signal transmitting boundary is increased through winding radius emission part.Need not other plus signal amplifier and antenna, can realize the function of conversion of signals and amplification, and with low cost, simple in structure.
It is understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection domain that all should belong to claim of the present invention with distortion.
Claims (9)
1. electromagnetic interference detecting device; Be used to detect the noise signal of a noise signal source, it comprises a detector, a signal receiving device and a signal display apparatus, and said detector is used for single-point and contacts said noise signal source and be converted into corresponding wireless signal with it to said noise signal; Said signal receiving device is used to receive the wireless signal of said detector emission; Said signal display apparatus is used to the wireless signal that shows that said signal receiving device sends, and said signal receiving device is electrically connected with said signal display apparatus, it is characterized in that; Said detector comprises an insulating bar, a probe and a lead; Said lead from an end of insulating bar in the shape of a spiral shape be wound to the other end, said probe links to each other with an end of lead, said probe from insulating bar one end to extending away from the insulating bar direction.
2. electromagnetic interference detecting device as claimed in claim 1; It is characterized in that; Said insulating bar is an emission part away from an end of probe; End near probe is a detection portion, and the external diameter of said emission part is along increasing away from the insulating bar direction gradually, and the external diameter of said detection portion is along reducing gradually away from the insulating bar direction.
3. electromagnetic interference detecting device as claimed in claim 2 is characterized in that, said detection portion is a cone.
4. electromagnetic interference detecting device as claimed in claim 2 is characterized in that, also has an extension between said emission part and the detection portion, and said extension is a right cylinder.
5. electromagnetic interference detecting device as claimed in claim 1 is characterized in that, the material of said insulating bar is a plastic cement.
6. electromagnetic interference detecting device as claimed in claim 1 is characterized in that, said lead is silver-colored line.
7. electromagnetic interference detecting device as claimed in claim 1 is characterized in that, the material of said probe is a silver.
8. electromagnetic interference detecting device as claimed in claim 1 is characterized in that said probe and lead are one-body molded.
9. electromagnetic interference detecting device as claimed in claim 1 is characterized in that, said signal display apparatus is a frequency spectrograph.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103004935A CN101526573B (en) | 2008-03-07 | 2008-03-07 | Electromagnetic interference detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103004935A CN101526573B (en) | 2008-03-07 | 2008-03-07 | Electromagnetic interference detecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101526573A CN101526573A (en) | 2009-09-09 |
| CN101526573B true CN101526573B (en) | 2012-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008103004935A Expired - Fee Related CN101526573B (en) | 2008-03-07 | 2008-03-07 | Electromagnetic interference detecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN101526573B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455387A (en) * | 2010-10-20 | 2012-05-16 | 鸿富锦精密工业（深圳）有限公司 | Electromagnetic radiation detecting device |
| CN114675341A (en) * | 2022-03-08 | 2022-06-28 | 鹏城金云科技有限公司 | Wireless detection system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2297174A (en) * | 1995-01-18 | 1996-07-24 | Eupen Kabelwerk | Apparatus for the EMI testing of electronic devices |
| US5541521A (en) * | 1994-09-19 | 1996-07-30 | Chrysler Corporation | EMI test system and decoupling network therefor, the decoupling network having series connected resonators with torroidal cores formed from a ferrite Composition |
| CN1635385A (en) * | 2003-12-25 | 2005-07-06 | 明基电通股份有限公司 | Electromagnetic interference detecting device |
-
2008
- 2008-03-07 CN CN2008103004935A patent/CN101526573B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5541521A (en) * | 1994-09-19 | 1996-07-30 | Chrysler Corporation | EMI test system and decoupling network therefor, the decoupling network having series connected resonators with torroidal cores formed from a ferrite Composition |
| GB2297174A (en) * | 1995-01-18 | 1996-07-24 | Eupen Kabelwerk | Apparatus for the EMI testing of electronic devices |
| CN1635385A (en) * | 2003-12-25 | 2005-07-06 | 明基电通股份有限公司 | Electromagnetic interference detecting device |
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| CN101526573A (en) | 2009-09-09 |
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Granted publication date: 20120516 Termination date: 20130307 |