CN101526573A - Electromagnetic interference detecting device - Google Patents
Electromagnetic interference detecting device Download PDFInfo
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- CN101526573A CN101526573A CN200810300493A CN200810300493A CN101526573A CN 101526573 A CN101526573 A CN 101526573A CN 200810300493 A CN200810300493 A CN 200810300493A CN 200810300493 A CN200810300493 A CN 200810300493A CN 101526573 A CN101526573 A CN 101526573A
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- signal
- electromagnetic interference
- detecting device
- insulating bar
- interference detecting
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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 the problem in finding to 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 by the EMI of tiny parts.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, signal transferred to the signal amplifier amplification after, again noise signal is converted into corresponding wireless signal, nationality is sent by emitting antenna.Described 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
Have in view of that, be 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.Described detector is used for single-point and contacts described noise signal source and described noise signal is converted into corresponding wireless signal with it, described signal receiving device is used to receive the wireless signal of described detector emission, and described signal display apparatus is used to the wireless signal that shows that described signal receiving device sends.Described signal receiving device is electrically connected with described signal display apparatus.Described detector comprises an insulating bar, a probe and a lead.Described lead from an end of insulating bar in the shape of a spiral shape be wound to the other end, described probe links to each other with an end of lead, its 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 lead on the described insulating bar, spiral by lead twines, can make noise signal obtain amplifying and being converted to 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
Below in conjunction with accompanying drawing embodiment of the present invention is described in further detail.
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 described 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 described signal display apparatus 30.
Described detector 10 is used for single-point and contacts described noise signal source 40 and described noise signal is converted into corresponding wireless signal.See also Fig. 2, described detector 10 comprises an insulating bar 11, a lead 12 and a probe 13.Described lead 12 is wound to the other end from an end of insulating bar 11, and described 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.
Described insulating bar 11 comprises a detection portion 111 and an emission part 113 at least, and described detection portion 111 is positioned at probe 13 1 sides, and described emission part 113 is positioned at the end of insulating bar 11 away from probe 13.Measure for ease of the noise signal source 40 to the tiny parts of electronic component, detection portion 111 needs more elongated, and the external diameter of described detection portion 111 is along reducing gradually away from insulating bar 11 directions, and in the present embodiment, described detection portion 111 is coniform.After noise signal is passed through detector 10 and is converted to wireless signal and sends, for guaranteeing its intensity and transmitting boundary, the external diameter of described 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 described insulating bar 11 can be a cone, its outer detection portion to its external diameter of emission part without leave increases gradually.In the present embodiment, also have an extension 112 between detection portion 111 and emission part 113, described extension 112 is a right cylinder.Be appreciated that described 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, described extension 112 is convenient to grip.The material that is appreciated that described insulating bar 11 can be any insulating material, and in the present embodiment, described insulating bar 11 is the plastic cement insulating bar.
Described lead 12 from an end of insulating bar 11 in the shape of a spiral shape be wound to the other end.The one end links to each other with probe 13, and noise signal is imported, and by Ampere's law as can be known, described spirally-wound lead 12 structures can be converted to wireless signal to noise 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, and the wireless signal transmission of lead 12 conversions is gone out.Pound number for increasing to twine, guarantee the intensity of wireless signal, in the present 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, described lead 12 is preferably made by the big conductor of conductance, and in the present embodiment, described lead 12 is made by argent.
Described probe 13 links to each other with an end of lead 12, its from insulating bar 11 1 ends to extending away from insulating bar 11 directions.Described probe 13 is used for directly contacting with noise signal source 40, gives lead 12 noise signal transmission.Be appreciated that described probe 13 made by the big conductor of conductance, in the present embodiment, described probe 13 is made by argent.Be understandable that described probe 13 can be one-body molded with lead 12.
Described signal receiving device 20 is used to receive the signal of described detector 10 emissions, and it is electrically connected with signal display apparatus 30.Be appreciated that described signal receiving device 20 can be the antenna that has the electromagnetic wave receiving function arbitrarily.In the present embodiment, described signal receiving device 20 directly is transferred to signal display apparatus 30 after receiving noise signal.
Described signal display apparatus 30 is used to show described noise signal, is appreciated that described signal display apparatus 30 can be the display device that has the noise signal Presentation Function arbitrarily, and in the present embodiment, described signal display apparatus 30 is a frequency spectrograph.Nationality can demonstrate the size and the intensity of noise signal by signal display apparatus 30.
Described 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 signal is sent, after signal receiving device 20 receives described noise signal, directly be 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 lead on the described insulating bar, spiral by lead twines, can make noise signal obtain amplifying and being converted to corresponding wireless signal, increase successively by winding radius, the signal transmitting boundary is increased 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.
Be 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, described detector is used for single-point and contacts described noise signal source and described noise signal is converted into corresponding wireless signal with it, described signal receiving device is used to receive the wireless signal of described detector emission, described signal display apparatus is used to the wireless signal that shows that described signal receiving device sends, described signal receiving device is electrically connected with described signal display apparatus, it is characterized in that, described detector comprises an insulating bar, one probe and a lead, described lead from an end of insulating bar in the shape of a spiral shape be wound to the other end, described probe links to each other with an end of lead, its 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, described insulating bar is an emission part away from an end of probe, end near probe is a detection portion, the external diameter of described emission part is along increasing gradually away from the insulating bar direction, and the external diameter of described 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, described detection portion is a cone.
4. electromagnetic interference detecting device as claimed in claim 2 is characterized in that, also has an extension between described emission part and the detection portion, and described extension is a right cylinder.
5. electromagnetic interference detecting device as claimed in claim 1 is characterized in that, the material of described insulating bar is a plastic cement.
6. electromagnetic interference detecting device as claimed in claim 1 is characterized in that, described lead is silver-colored line.
7. electromagnetic interference detecting device as claimed in claim 1 is characterized in that, the material of described probe is a silver.
8. electromagnetic interference detecting device as claimed in claim 1 is characterized in that described probe and lead are one-body molded.
9. electromagnetic interference detecting device as claimed in claim 1 is characterized in that, described 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 true CN101526573A (en) | 2009-09-09 |
| CN101526573B CN101526573B (en) | 2012-05-16 |
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ID=41094542
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 |
|---|---|
| CN (1) | CN101526573B (en) |
Cited By (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 |
Family Cites Families (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 |
| DE19501329C1 (en) * | 1995-01-18 | 1996-07-11 | Eupen Kabelwerk | Device for 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 |
-
2008
- 2008-03-07 CN CN2008103004935A patent/CN101526573B/en not_active Expired - Fee Related
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN101526573B (en) | 2012-05-16 |
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Granted publication date: 20120516 Termination date: 20130307 |