Kana iwe uchida kuyedza diode mudunhu, tora yako multimeter uye uiise kune iyo chaiyo modhi. Bata zvinotungamira kune diode terminals. Tarisa kuverenga pamamita yako. Iwe haufanire kubvisa diode kubva pabhodhi. Kushandisa marongero chaiwo kunobatsira kuti uwane mhedzisiro chaiyo. Iyi nzira inonzwa iri nyore, kunyangwe iwe uchangotanga.
Zvishandiso uye Setup
Zvaunoda
Iwe haudi yakawanda yemhando giya yekuyedza diode mudunhu. Hezvino izvo zvaunofanira kubata usati watanga:
Multimeter yedhijitari (iyi ndiyo chishandiso chikuru chauchashandisa)
Yedza inotungamira kune yako dijitari multimeter
Optional: An oscilloscope kana jenareta basa (izvi zvinobatsira nekuedza kwepamusoro, asi unogona kusvetuka kuti utarise cheki)
Kana iwe uine maturusi aya akagadzirira, wakagadzirirwa nzira yekuyedza yakatsetseka.
Mazano Okuchengetedza
Kuchengetedzwa kunotanga . Usati wabata chero chinhu, iva nechokwadi chekuti simba remagetsi rinoenda kumagetsi radzimwa. Haudi kuti magetsi apinde nepa diode paunenge uchiyedza. Kana ukaona ma capacitor makuru ari pedyo, abudise. Danho iri rinokuchengetedza uye rinodzivirira multimeter yako yedhijitari kubva mukukuvadzwa.
Zano: Gara uchitarisa kuti circuit yadzimwa usati watanga. Zviri nyore kukanganwa, asi zvine mutsauko mukuru.
Multimeter Settings
Kumisikidza yako yedhijitari multimeter iri nyore. Iwe unongoda kushandura dial kune iyo nzira chaiyo. Kana iwe uchida kushandisa diode test mode, tevera matanho aya:
Ita shuwa kuti dunhu radzimwa uye diode haina voltage pairi.
Shandura dial pane yako dijitari multimeter kune iyo Diode Test mode. Tarisa mucherechedzo unoratidzika kunge gonyonhatu ine mutsara.
Batanidza bvunzo inotungamira kune diode. Bata mutobvu mumwe kumagumo ega ega.
Rekodha kuverenga. Zvadaro, shandura madhiri uye rekodha kuverenga kwechipiri.
Kana yako yedhijitari multimeter isina diode bvunzo modhi, unogona kushandisa yekupikisa maitiro. Ingo shandura dial kune yekupikisa kuseta (kazhinji inomisikidzwa ne Ω chiratidzo). Iyi nzira inoshanda kucheki nekukurumidza, asi iyo diode test mode inokupa mhedzisiro yakanyatsojeka.
Maitiro ekuyedza Diode
Diode Test Mode
Unoda kuyedza diode iri mucircuit here? Nzira iri nyore ndeyekushandisa diode test mode pa digital multimeter yako. Iyi mode inokupa kuverenga zvakananga kwekudonha kwevoltage pane diode. Heino maitiro ako:
Dzima simba kudunhu. Ita shuwa kuti zvese zvakachengeteka.
Isa multimeter yako yedhijitari kuti ive diode test mode . Tsvaga chiratidzo chetriangle chine mutsetse.
Isa muto mutsvuku pane anode uye muto wakasviba pane cathode ye diode.
Tarisa kuverenga. Iwe unofanirwa kuona nhamba iri pakati pe0.6 ne0.8 volts yesilicon diode. Kazhinji yenguva, iri pedyo ne0.7 volts.
Dzorera zvinotungamirira. Isa muto wakasviba pane anode uye muto mutsvuku pane cathode. Chiratidziro chinofanira kuratidza "OL" kana kukosha kwakanyanya. Izvi zvinoreva kuti diode inovhara ikozvino munzira iyi.
Zano: Kana ukaona voltage ichidzikira kumativi ese, diode inogona kunge isina kunaka. Kana ukawana zero volts, diode inogona kupfupikiswa.
Resistance Mode
Dzimwe nguva, yako yedhijitari multimeter haina diode test mode. Iwe unogona kuramba uchiyedza diode uchishandisa iyo yekupokana modhi. Iyi nzira haina kunyatsojeka, asi inokubatsira kuona matambudziko ari pachena.
Seta yako dhijitari multimeter kune yekupikisa kuseta (Ω chiratidzo).
Bata zvinotungamira kune diode terminals. Edza nzira dzese.
Mune imwe nzira, iwe unofanirwa kuona kushomeka kwakaderera. Mune imwe, iwe unofanirwa kuona kuramba kwakanyanya kana "OL."
Heino tafura inokurumidza kukubatsira kunzwisisa zvaungaone:
Multimeter Kuverenga | Zvazvinoreva |
|---|---|
0.6 - 0.8 V | Yakanaka silicon diode |
0 V | Diode pfupi |
OL kana kukosha kwepamusoro | Vhura diode |
Cherechedza: Resistance mode dzimwe nguva inogona kupa mhedzisiro isinganzwisisike kana zvimwe zvikamu zvedunhu zvikabatana ne diode. Kana usina chokwadi, edza kushandisa diode test mode kana kubvisa diode kuti uedze.
Kuturikira Migumisiro
Paunoedza diode, iwe unoda mhinduro dzakajeka. Iyo yakanaka silicon diode inoratidza kudonha kwemagetsi pakati pe0.6 ne0.8 volts mune diode test mode. Kana iwe ukaona 0 volts, diode ipfupi. Kana iwe ukaona "OL" kana pasina kuverenga, diode yakazaruka.
Unogona kusangana nezvinovhiringa mhinduro. Dzimwe nguva, zvimwe zvikamu mudunhu zvinokanganisa kuverenga kwako. Somuenzaniso, imwe nyanzvi yakambowana diode yakakundikana mumuchina wekutakura. Imwe coil yakaramba ichipfura nekuti diode haina kuvharira ikozvino. Dambudziko rakanga rakaoma kuona pakutanga. Diodes inogona kukonzera zvisinganzwisisike, kunyanya mumaseketi emotokari. Kana kuverenga kwako kusingaite zvine musoro, edza kuyedza diode kunze kwedunhu.
Kudanwa: Gara uchiyeuka, kana ukaedza ma diode ari mu-circuit, zvimwe zvikamu zvinogona kuchinja zvawawana. Kana wabatwa, bvisa diode woiedzazve.
Kuedza diode hakufanirwe kuve kwakaoma. Shandisa diode test mode kuti uwane mhedzisiro yakanaka. Resistance mode inoshanda kukurumidza kutarisa. Kana iwe ukawana zvisinganzwisisike kuverenga, funga nezve chimwe chingave chakabatana kune diode.
Kuedza Diode nedzimwe Nzira
Oscilloscope nzira
Dzimwe nguva, unoda kuona zvinopfuura nhamba. Oscilloscope inokutendera kuti utarise mashandiro anoita diode panguva chaiyo. Kuti uite izvi, tumira wave yechikwere kuburikidza ne diode. Batanidza oscilloscope kuburikidza ne diode. Unogona kuwana matambudziko nekutarisa chimiro chemafungu.
Hezvino zvekutarisa pascreen:
Tarisa kuti masaisai anokwira nekudzika sei.
Ona kana kureba kwemafungu kuchichinja kutenderera kwega kwega.
Cherechedza kana mutsara uchifamba kumusoro kana pasi. Izvozvo zvinonzi DC offset.
Tarisa kune zvisinganzwisisike spikes kana glitches kana wave wachinja.
Kushandisa oscilloscope kune yakanaka uye yakaipa mapoinzi zvichienzaniswa nedhijitari multimeter. Tarisa tafura iyi:
mamiriro | Oscilloscope | Digital Multimeter |
|---|---|---|
Chiyero Rudzi | Inoratidza waveforms uye mamwe ma voltages | Inokupa nhamba dzemagetsi dzakananga |
Input Impedance | Yakakwirira, saka haizokanganise nedunhu rako | Zvakare yakakwirira, yakachengeteka kune mazhinji maseketi |
kunyatsoita | Kwete chaizvo semultimeter | Zvakanyatsojeka |
AC Ripple Monitoring | Ehe, iwe unogona kuona AC ripple | Kwete, hatisi kuona ripple |
Kusarudzwa | Kazhinji yakakura uye isingatakurike | Diki uye nyore kutakura |
Ruggedness | Yakaoma uye yakasimba | Hazvina kuoma |
Bias Voltage yekuedzwa | Haisi yakanaka yekuyedza diode kana transistors | Mamwe mamodheru anogona kusapa voltage yakakwana |
Zano: Kana uchida kuona kuti diode inobata sei masaini anokurumidza kana ruzha, shandisa oscilloscope.
Rinoshanda jenareta
Jenareta yemashandiro inotumira masaini akasiyana kuburikidza nediode. Unogona kusarudza chimiro, kumhanya, uye simba resignal. Chishandiso ichi chinokubatsira kuona mashandiro anoita diode muhupenyu chaihwo.
Heano maitiro jenareta anokubatsira iwe kuyedza diode:
Inoita zviratidzo zvakaita semasaisai emakona kana sine mafungu. Iwe unogona kuona kuti diode inoita sei.
Iwe unogona kushandura frequency uye amplitude kuyedza iyo diode pamatanho akasiyana.
Inokubatsira kutarisa kana diode yakavharira ikozvino nzira imwe uye inoirega ichiyerera neimwe nzira.
Paunoshandisa jenareta basa, tanga ne low voltage uye ikozvino. Kuti uite bvunzo yekutanga, shandisa diki ikozvino uye kuyera voltage pane diode. Kana iwe uchida cheki yakadzama, wedzera ikozvino (kusvika ku 1 amp ye 1 amp diode) uye ona kana kudonha kwemagetsi kunoramba kwakajairika. Iwe unogona zvakare kushandisa reverse voltage padyo nechiyero che diode kuti uone kana ichidonha ikozvino.
Cherechedza: Jenareta yema "function" inokupa simba rakawanda rekutonga uye inokubatsira kuwana matambudziko angasaonekwa ne "meter" iri nyore.
Troubleshooting
Zvakaipa Diode Zviito
Kana ukaona diode isina kunaka, unofanira kuigadzirisa nekukasika . Heino nzira iri nyore yekutsiva diode isina kunaka mucircuit yako:
Edza diode nedhijitari multimeter yako kuti uone kuti haisi kushanda.
Tsvaga diode yakashata pabhodhi. Iwe unogona kushandisa schematic kana kungotarisa zvakanyanya.
Nyatso desolder uye bvisa diode kubva kudunhu.
Sarudza diode nyowani inoenderana neiyo yekare fungidziro.
Solder diode itsva panzvimbo. Ita shuwa kuti unowana iyo polarity chaiyo.
Edza iyo diode nyowani neyako dijitari multimeter kuti uve nechokwadi chekuti zvese zvinoshanda.
Zano: Gara uchitarisa polarity usati waisa solder. Madiodhi anoshanda nenzira imwe chete!
Nyaya Dzakajairika
Diode inogona kukundikana nekuda kwezvikonzero zvakawanda. Iwe unogona kuona matambudziko senge thermal overload, magetsi overstress, kana kudzoreredza kusarura kuparara. Dzimwe nguva, kukuvara kwemuviri kana kuchembera kunokonzera dambudziko. Heano zvimwe zviratidzo uye zvikonzero zvaunofanira kutarisa:
Ikozvino kuenda pamusoro peiyo yakayerwa kukosha
Vhura kutadza kwedunhu
Kukundikana kwedunhu pfupi
Pisa mavanga kana kuputika pane diode
Discoloration kana kusviba materminals
Kukurumidza kupisa kana dunhu riripo
Ruzha rusinganzwisisike kana ma ripples mumagetsi ako
Kana iwe ukaona chero cheizvi, tora yako dijitari multimeter uye tanga kuyedza. Kukurumidza kuona kuongorora kunobatsira zvakare. Tarisa zvikamu zvakatsva kana kunhuhwirira kunoshamisa pedyo nedhiodhi.
Nguva Yokubvisa Diode
Dzimwe nguva, kuedza diode mudunhu hakukupe mhinduro dzakajeka. Zvimwe zvikamu zvinogona kukanganisa kuverenga kwako. Apa ndipo paunofanirwa kufunga nezvekubvisa diode:
Iwe unowana kuverenga kunovhiringidza kubva kune yako dijitari multimeter.
Dunhu rine zvinhu zvakawanda zvakabatana.
Iwe unoona zviratidzo zvekukuvara asi haugone kusimbisa ne-in-circuit bvunzo.
Usati wabvisa diode, bvisa simba rose. Bvisa chero hombe capacitor padyo. Kana iwe uchida, iwe unogona kubvisa mugumo mumwe chete we diode pane kuibvisa zvachose. Izvi zvinoita kuti kuedza kuve nyore uye kwakachengeteka.
Cherechedza: Kana uchiri kusakwanisa kuona dambudziko, edza kushandisa girazi rinokudza kuti uone kana paine matombo madiki kana kuti majoini asina kunaka. Kuchengeta rondedzero yezvawakaedza uye zvawakagadzirisa kunokubatsira kuona mapatani kana dambudziko rimwe chete rikabuda zvakare.
Iye zvino wava kuziva kuyedza diode mucircuit. Nguva dzose shandisa multimeter mode yakakodzera uye tarisa zvawawana. Heano mamwe zvikanganiso zvinowanzoitwa nevanotanga :
Kusadudzira zviratidzo
Kusanganisa polarity
Kushandisa mhando isiriyo kana kutarisisa
Gara wakachengeteka nekutevera matanho aya:
Dzima simba rese uye bvisa capacitors.
Tumira zviratidzo zvekunyevera munzvimbo dzine magetsi akakwira.
Wongorora nzvimbo yako yekuyedza nguva zhinji.
Kana iwe ukawana diode ine mhosva, itsive kana kukumbira rubatsiro kubva kune yaunovimba nayo.
FAQ
Unogona kuyedza diode pasina kuibvisa kubva kudunhu?
Ehe, unogona kuyedza akawanda diode pabhodhi chaipo. Ingoshandisa yako multimeter mu diode test mode. Kana iwe ukawana kuverenga kusinganzwisisike, edza kubvisa rimwe gumbo re diode kuti uwane mhedzisiro yakajeka.
Zvinorevei kuti "OL" pane yangu multimeter pakuedza diode?
"OL" inomirira "Open Loop." Multimeter yako inoratidza izvi kana diode ichivharira ikozvino. Izvi zvinoreva kuti diode iri kushanda yakadzokera kumashure. Iwe unoda kuona "OL" mune imwe nzira kune yakanaka diode.
Sei ndichiwana kuverenga kwakasiyana-siyana mu-circuit kana ichienzaniswa nekunze kwedunhu?
Zvimwe zvikamu mudunhu zvinogona kukanganisa bvunzo yako. Unogona kuona nhamba dzisinganzwisisiki nekuda kwenzira dzinoenderana kana zvikamu zvakabatana. Kana iwe uchinzwa usina chokwadi, edzai diode mushure mekuibvisa kubva mubhodhi.
Chii chinoitika kana ndikaisa diode kumashure?
Kana iwe ukaisa diode kumashure, haitenderi ikozvino kuyerera nenzira yaunoda. Dunhu rako rinogona kusashanda, kana kukuvadza zvimwe zvikamu. Nguva dzose tarisa polarity usati watengesa.
Ndinogona kushandisa analog multimeter kuyedza diode?
Iwe unogona kushandisa analog multimeter, asi haina kunyatsojeka pane yedhijitari. Iwe uchaona tsono ichifamba kune yakanaka diode. Kana tsono isingafambi, diode inogona kuvhurika kana kupfupika.
