The main purpose of this test is to verify the resistance to electrostatic discharge (ESD) caused by the proximity or contact of an object or person or device. O se mea faitino poʻo se tagata mafai ona faʻaputuputu se eletise electrostatic totogi totonu o se voltage maualuga atu nai lo 15kv. O le poto masani e faʻaalia ai le tele o faʻaletonu le manuia ma mea faʻaleagaina e ono mafua mai i le ESD. I le lafoa ese mai le ESD simulator i luga o ma latalata i le EUT, o le meafaigaluega suʻega (EUT) puʻeina gaioiga ESD. O le tulaga ogaoga o le lafoa o loo manino faauigaina i oloa tulaga faatonuina ma EMC tofotofoga fuafuaga saunia e le gaosi oloa. Siaki a le EUT i le aoga o galuega pe faʻalavelave i ana auala faʻagaioiga uma. E tatau ona faʻamaninoina aiaiga pasi / le pasi ile faʻataʻitaʻiga ole suʻega ole EMC ma fuafuaina e le gaosi oloa.

PCB transient conductivity resistance

O le autu autu o lenei suʻega o le faʻamaonia le teteʻe o le EUT i taimi le tumau ma puʻupuʻu faʻateʻia ma vave osooso taimi e ono mafua mai i le faʻaosoina avega poʻo fesoʻotaʻiga. O le vave oso o le taimi ma le toe faia natura o lenei suʻega o le paʻu faʻaiuga i nei fao faigofie ona ofi EUT taʻamilosaga ma ono faʻalavelave i le EUT gaioiga. Fetuutuunai galue tuusaʻo i luga o le autu sapalai o sapalai ma le faʻatagaina o le laina faʻailo. I isi suʻega puipuia a le PCB, e tatau ona mataʻitu le EUT i luga o se pasi / pasi faʻavae e faʻaaoga ai le faʻagaioiga o gaioiga lautele.

Resistance of PCB to electromagnetic radiation

O le autu mafuaʻaga o lenei suʻega o le faʻamaonia o le oloa PCB tetee-faʻalavelave gafatia faasaga i leitio, transceivers, feaveaʻi GSM / AMPS telefoni, ma le tele o electromagnetic fanua fausia mai alamanuia eletise punaoa. Afai e le puipuia le tino, eletise eletise mafai ona faʻatasia i le interface cable ma ulufale i totonu o le matagaluega e ala i le auala faʻatonutonu; Pe mafai foi ona tuʻufaʻatasia faʻatasi i le uaea o se lolomi lolomi. When the amplitude of the rf electromagnetic field is large enough, the induced voltage and demodulated carrier can affect the normal operation of the device.

PCB radiation resistance Test run This test run is usually the longest and most difficult, requiring very expensive equipment and considerable experience. In contrast to other PCB immunity tests, success/failure criteria defined by the manufacturer and a written test plan must be sent to the test room. A fafagaina EUT i totonu o le malae malae, le EUT tatau ona seti i faʻagaioiga masani ma le sili atu maaleale auala.

Ole faʻagaioiga masani e tatau ona faʻamautu ile potu suʻesuʻe pe a oʻo ile EUT ile faʻalavelave faʻafuaseʻi o latou ala ua ova atu ile 80MHz ile 1GHz taimi masani. Some PCB anti-interference standards start at 27MHz. Ogaoga tulaga lenei masani masani manaʻomia PCB teteʻe tulaga o 1V / m, 3V / m, poʻo 10V / m. Ae ui i lea, o auiliiliga masini e ono i ai a latou lava manaʻoga mo faʻapitoa “faʻafitauli (faʻalavelave) ala masani”. The appropriate PCB radiation resistance level of the product is of interest to the manufacturer.

Manaʻoga tuʻufaʻatasia manaʻoga O le PCB faʻalavelave faʻalavelave teteʻe EN50082-1: 1997 e faʻasino IEC / EN61000-4-3. IEC / EN61000-4-3 manaʻomia se tuʻufaʻatasia suʻega siʻosiʻomaga faʻavae i luga o faʻataʻitaʻiga faʻataʻitaʻiga. The test environment was realized in an anechoic room with tiles arranged with ferrite absorbers to block reflection and resonance in order to establish a unified test site indoors. Lenei manumalo i le faʻafuaseʻi ma masani ona le toe faia suʻega mea sese mafua mai i mafaufauga ma fanua gradients i le masani ai potu leai laina. (A semi-anechoic potu o se lelei lelei siʻosiʻomaga mo le fuaina o le faʻasaina o le eletise i totonu o totonu e le masani ai siosiomaga e manaʻomia le saʻo).

Fausiaina o semi-anechoic potu RF mimiti e tatau ona faʻatutuina i luga o puipui ma faʻalo o semi-anechoic potu. O le masini ma le RF tisaini faʻamatalaga faʻapitoa e tatau ona ofi i le mamafa ferrite tile o loʻo ufiufi ai le taualuga o le potu. O piliki o loʻo nonofo i luga ole uila ma e faʻamau ile pito i luga ole potu. I totonu o se potu le faʻataʻamilo, o atagia mai luga o le uʻamea o le a mafua ai le tagitagi ma galu tu, lea e faʻatupuina ai tumutumu ma fata i le malosi o le nofoaga suʻega. O le fanua gradient i totonu o se masani potu unlines mafai ona 20 i le 40dB, ma o lenei o le a mafua ai le suʻega faʻataʻitaʻiga e foliga mai ua paʻu faʻafuaseʻi i se matua maualalo fanua. O le resonance o le potu mafua ai i le maualalo tele suʻega toe faʻaleleia ma le maualuga fua faatatau o le “overtesting”. (Lenei ono taitai atu ai i sili atu-mamanuina o le oloa.) O le fou PCB tetee-faʻalavelave tulaga masani IEC1000-4-3, lea e manaʻomia ai le tutusa tulaga manaʻomia, ua toe faaleleia nei matuia le atoatoa.

O le masini ma polokalama manaʻomia e fausia ai le nofoaga suʻega manaʻomia ai se maualuga-mana broadband RF amplifier e aveina le broadband transmiting velo i le alavai tele o sili atu nai lo 26MHz i 2GHz, lea na 3 mita le mamao mai le masini tofotofoina. Fully automated testing and calibration under software control provides greater flexibility for testing and full control of all key parameters such as scan rate, frequency pause time, modulation and field strength. Polokalama matau e faʻatagaina le tuʻufaʻatasia o le mataʻituina ma le faʻaosofia o le EUT aoga. E manaʻomia ni fesoʻotaʻiga fesoʻotaʻiga i suʻega moni e faʻaavanoa ai taimi e suia ai i le EMC suʻega polokalama ma tapulaʻa EUT. O lenei tagata faʻaaoga avanoa avanoa faʻatagaina uma faʻamaumauga e tusia vave mo lelei iloiloga ma vaeluaina o EUT EMC faatinoga.

O loʻo faʻatinoina e le Pyramidal absorbers O tu ma aga masani a le pyramidal (conical), peitaʻi o le tele o le pyramid e faigata ai ona faʻataʻitaʻia tamaʻi avanoa e faʻaaogaina i totonu o le potu. Mo alalaupapa maualalo o 80MHz, o le umi o le mimiti o le pyramid e tatau ona faʻaititia i le 100cm, ma ia faʻagaoioia i lalo ifo o alafua o 26MHz, o le umi o le pyramid mimiti e tatau ona sili atu i le 2m. O loʻo i ai ni faʻaletonu le mea e faʻaaogaina e le Pyramid. Latou e maaleale, faigofie ona faʻaleagaina e fetauiga, ma magaugofie. E le aoga foi le faʻaogaina o nei mea mitiia i luga o le foloa o le potu. Ona o le faʻamafanafanaina o le pyramid mitiia, o le malosiʻaga sili atu nai lo 200V / m i luga o se vaitaimi o le taimi o le a ono aʻafia ai se maualuga lamatiaga o le afi.

Mauaina o le tile tile

O faʻalauteleina o laupapa o loʻo faʻatinoina lelei, e ui lava latou te faʻaopopoina le mamafa o le taualuga, puipui ma faitotoʻa o le potu, o lea e matua taua ai le faʻavaeina o masini. Latou galulue lelei i maualalo alalaupapa, ae avea ma tino le aoga i alaleo luga luga o 1GHz. O sikuea Ferrite e matua mafiafia (100mm × 100mm × 6mm mafiafia) ma e mafai ona tatalia le malosiʻaga o le fanua e sili atu i le 1000V / m e aunoa ma se lamatiaga o le afi.

Faʻafitauli i le PCB radiation tetee faʻataʻitaʻiga Talu ai o ausilali mea faigaluega faʻaaoga e faʻagaioia ai le EUT maua faʻaosofia faʻailoilo e mataʻituina lana ia lava gaioiga, e tatau ona ia lava PCB-teteʻe atu i lenei maaleale fanua, o se mafuaʻaga faigata i le faʻatautaia o se radiation lagona faʻataʻitaʻi tofotofoga. Lenei masani lava ona taitai atu ai i faigata, aemaise lava pe a ausilali meafaigaluega faigata ma manaʻomia tele tele uaea ma fesoʻotaʻiga i le EUT o lo o faʻamalosia e ala i le puipuia suʻega potu. O uaea uma o loʻo tamoʻe i totonu o le potu faʻataʻitaʻi e tatau ona puipuia ma / pe faʻamamaina ina ia puipuia ai le malae faʻataʻitaʻi mai ia i latou e aloese ai mai le faʻaititia o le puipuiga o le potu faʻataʻitaʻi. O fetuʻunaʻiga i le faiga o talita a le potu faʻataʻitaʻi e mafua ai le le faʻatonu o le suʻega o le nofoaga o suʻega i le siʻosiʻomaga, ma e ono afaina ai le au faʻaoga. E le o taimi uma e mafai ai ona faʻaaogaina le filiga RF mo faʻamatalaga poʻo ni laina faʻailo, e pei o taimi e tele ai faʻamatalaga pe o taimi e faʻaaogaina ai le saoasaoa o fesoʻotaʻiga.