Diode mode multimeter (buku ndi malangizo ogwiritsira ntchito)
Zida ndi Malangizo

Diode mode multimeter (buku ndi malangizo ogwiritsira ntchito)

19.02.2023 /

Diode ndi chipangizo chamagetsi chomwe chimalola kuti pakali pano kuyenda munjira imodzi yokha, osati mosiyana. Ma diode a semiconductor nthawi zambiri amakhala ndi kapangidwe kake, komwe ndi chipika cha P-mtundu wa semiconductor cholumikizidwa ndi chipika chamtundu wa N-chomwe chimalumikizidwa ndi ma terminals awiri, omwe ndi anode ndi cathode.

A rectifier circuit ndi dera lamagetsi lomwe lili ndi zida zamagetsi zomwe zimatembenuza magetsi kuti aziwongolera panopa. Mabwalo obwezeretsanso amagwiritsidwa ntchito mumagetsi a DC kapena zowunikira ma RF pazida zamawayilesi. Dera lowongolera nthawi zambiri limakhala ndi ma diode a semiconductor kuti aziwongolera nyali zapano ndi mercury rectifier kapena zinthu zina.

Kawirikawiri, njira yabwino yoyesera diode ndiyo kugwiritsa ntchito "Diode Test" mode pa multimeter yanu, chifukwa njirayi ikugwirizana kwambiri ndi makhalidwe a diode. Mwanjira iyi, diode imayang'ana kutsogolo. Diode yomwe imagwira ntchito nthawi zambiri imakhala ndi nthawi yomwe imayang'ana kutsogolo ndipo iyenera kutsika mphamvu. Ngati mtengo wamagetsi wowonetsedwa uli pakati pa 0.6 ndi 0.7 (pa diode ya silicon), ndiye kuti diode ndi yabwino komanso yathanzi.

Muyeso wa diode umayenda munjira ya "Test Diode".

  • Dziwani mizati yabwino komanso yoyipa ya ma diode.
  • Sungani multimeter yanu ya digito (DMM) mumayendedwe oyesera a diode. Munjira iyi, multimeter imatha kutulutsa pafupifupi 2 mA pakati pa zowongolera zoyeserera. (2)
  • Lumikizani mayeso akuda kupita ku terminal yoyipa ndipo mayeso ofiira amatsogolera ku terminal.
  • Yang'anani zowerengera pamawonekedwe a multimeter. Ngati mtengo wamagetsi wowonetsedwa uli pakati pa 0.6 ndi 0.7 (pa diode ya silicon), ndiye kuti diode ndi yabwino komanso yathanzi. Kwa germanium diode, mtengo uwu umachokera ku 0.25 mpaka 0.3.
  • Tsopano sinthanani ma terminals a mita ndikulumikiza chofufuza chakuda ku terminal yabwino ndi kafukufuku wofiyira ku terminal yoyipa. Izi ndizomwe zimasinthiratu za diode pomwe palibe mphamvu yomwe imadutsamo. Choncho, mita iyenera kuwerenga OL kapena 1 (yofanana ndi kutsegula dera) ngati diode ili bwino.

Ngati mita ikuwonetsa zinthu zomwe sizikugwirizana ndi zomwe zili pamwambapa, ndiye kuti diode (1) ndiyolakwika. Zowonongeka za diode zimatha kukhala zotseguka kapena zazifupi.

Pomaliza

M'nkhaniyi, tili ndi malangizo atsatanetsatane pamayendedwe a "Diode Test" pakuyezera ma diode. Tikukhulupirira kuti chidziwitso chomwe timapereka chikuthandizani kuti mudziwe zambiri za zida zamagetsi.

ayamikira

(1) Zambiri za Diode - https://learn.sparkfun.com/tutorials/diodes/all

(2) Zambiri zamamita - https://www.electrical4u.com/voltage-or-electric-potential-difference/

Kuwonjezera ndemanga