Hanyoyi nawa na gwaji don abubuwan PCB na lantarki?

Gwajin kayan aikin lantarki na PCB muhimmin sashi ne na gwajin PCB. Don haka, hanyoyin gwaji nawa ake da su don abubuwan haɗin lantarki na PCB?

1.Gwajin coil na yau da kullun

Don gwajin coil, ana iya amfani da gadar dijital don gwada inductance akan layi. Saboda yawan aiki nainductor nadaba sau da yawa ba ƙasa ba, ana iya gwada inductance a mitar sama da 10kHz.

2. Gwajin juzu'i na Transformer

Ta hanyar gwada ƙimar inductance D na babban na'ura mai canzawa, zamu iya tantance kotransformeryana da gajeriyar da'ira ta tsaka-tsaki. Hanya ta musamman ita ce: saita gadar dijital zuwa 0.3V ko ƙasa, 10kHz ko sama, kuma auna ƙimar D na babban inductance na coil. Idan darajar D ta fi 0.1, ana yanke hukunci cewa taswirar ta lalace kuma ba za a iya amfani da ita ba.

3. Gano na'urorin Hall

Ana samun na'urori masu auna firikwensin hall a cikin samar da wutar lantarki guda ɗaya da samar da wutar lantarki biyu, da nau'in fitarwa na yanzu da nau'in fitarwar wutar lantarki. Firikwensin samar da wutar lantarki guda ɗaya baya gano halin yanzu, kuma siginar fitarwa gabaɗaya shine 1/2 na wutar lantarki ɗaya. Idan halin yanzu shine 0, fitowar siginar ta bambanta da yawa daga ƙimar tsakiya. Hakanan za'a iya gwada firikwensin ƙididdigewa don sanin ko na'urar firikwensin ta lalace. Babban firikwensin Hall tare da samar da wutar lantarki guda biyu yana fitar da ƙarfin lantarki 0 lokacin da ya fahimci halin yanzu 0; lokacin da ta hango wanin 0 halin yanzu, tabbatacce, korau da girman ƙarfin fitarwa yana canzawa tare da girma da shugabanci na halin yanzu da aka jawo.

4. Gwajin relays

Laifukan gama-gari na relays sun haɗa da cire haɗin coil, lambobin da ba sa rufewa, babban juriyar lamba, da kona lambobin sadarwa. Hanya mafi kyau don gwada ko gudun ba da sanda ya kasance na al'ada shine don ƙarfafa relay, amfani da ƙimar ƙarfin lantarki zuwa nada, sannan a gwada ci gaban lambar sadarwa.

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