Phakathi kwamathuluzi angamakhulu atholakala emakethe wokulinganisa ulwazi ngesignali ethile kagesi, imishini emibili evame kakhulu yi-multimeter kanye i-oscilloscope. Kepha badlule ezinguquko ezinkulu eminyakeni edlule ukuze babe ngcono futhi basebenze kahle emsebenzini wabo.
Yize umsebenzi walawa madivayisi womabili ufana ngandlela thile, awafani ngokuya ngokubukeka nokusebenza. Zinezici ezithile ezizenza zikhetheke kwezinye izinkambu. Sizokutshela wonke umehluko phakathi kwalawa madivayisi womabili ukuze wazi ukuthi iyiphi ezokusiza kakhulu ngaphansi kwezimo ezihlukile.
Ukwehlukanisa i-Oscilloscope neMultimeter yeGrafu
Lapho ufuna ukuthola umehluko phakathi kwezinto ezimbili, udinga nje ukuqhathanisa izici zawo bese uthola ukuthi yikuphi okwenza umsebenzi ongcono ngomsebenzi othile. Futhi yilokho kanye esikwenzile lapha. Senze ucwaningo olunzulu futhi satadisha ngezinto ezihlukanisa le mishini emibili, sakubhalela lezi ezingezansi.
Umlando Wokudala
Ngenkathi idivaysi yokuqala yesikhombisi eshukumisayo ezokwakhiwa kwakuyi-galvanometer ngo-1820, i-multimeter yokuqala yasungulwa ekuqaleni kwawo-1920. Unjiniyela waseBritish Post uDonald Macadie wasungula lo mshini ekhungathekile ngesidingo sokuphatha amadivayisi amaningi adingekayo ukunakekelwa kwamasekethe wezingcingo.
I-oscilloscope yokuqala yasungulwa ngo-1897 nguKarl Ferdinand Braun, owasebenzisa iCathode Ray Tube (CRT) ukukhombisa ukufuduka komkhethi ohamba njalo omele uhlobo lwesiginali kagesi. Ngemuva kwempi yezwe yesibili, kwatholakala imakethe yama-oscilloscope emakethe cishe ngama- $ 50.
Komkhawulokudonsa
Ama-oscilloscopes asezingeni eliphansi ane-bandwidth yokuqala ye-1Mhz (MegaHertz) futhi afinyelela kumaMegaHertz ambalwa. Ngakolunye uhlangothi, i-graphing multimeter ine-bandwidth ye-1Khz (KiloHertz) kuphela. Umkhawulokudonsa omningi ulingana nokuskena okuningi ngomzuzwana okuholela kumafomu amagagasi anembile futhi anembile.
Ama-Outlook: Usayizi Nezingxenye Eziyisisekelo
Ama-Oscilloscopes amadivayisi alula futhi aphathekayo abukeka njengebhokisi elincane. Yize kukhona izilinganiso ezithile zenhloso ezikhethekile. I-graphing multimeter, ngakolunye uhlangothi, incane ngokwanele ukuthi ungayiphatha ephaketheni lakho.
Izilawuli nesikrini ngasohlangothini lwesobunxele nangakwesokudla se-oscilloscope. Ku-oscilloscope, usayizi wesikrini mkhulu impela ngokuqhathaniswa nesikrini esincane se-graphing multimeter. Isikrini sihlanganisa cishe i-50% yomzimba wedivayisi ku-oscilloscope. Kepha ku-graphim multimeter, icishe ibe ngama-25%. Okunye okwenzelwe ukulawula nokufaka.
Izici Zesikrini
Izikrini ze-Oscilloscope zikhulu kakhulu kunalezo ze-graphing multimeter. Esikrinini se-oscilloscope, kunegridi enezikwele ezincane ezaziwa ngokuthi ukwahlukana. Lokhu kunikeza ukuguquguquka nokuguquguquka njengeshidi langempela legrafu. Kepha awekho ama-grid noma ukwahlukana kusikrini se-graphing multimeter.
Izimbobo ze-Input Jacks
Ngokuvamile, kuneziteshi ezimbili zokufaka kwi-oscilloscope. Isiteshi ngasinye sokufaka sithola isignali ezimele kusetshenziswa amaphenyo. Ku-multimeter ye-graphing, kunamachweba wokufaka ama-3 abhalwe ukuthi COM (common), A (for current), kanye V (for voltage). Kukhona netheku le-trigger yangaphandle ku-oscilloscope engekho ku-graphing multimeter.
Izilawuli
Izilawuli ku-oscilloscope zihlukaniswe izigaba ezimbili: okuqondile nokuvundlile. Ingxenye evundlile ilawula izimfanelo ze-X-eksisi yegrafu eyakhiwe esibukweni. Isigaba esime mpo silawula i-Y-axis. Noma kunjalo, azikho izilawuli zokulawula igrafu ku-graphing multimeter.
Kukhona ukudayela okukhulu ku-multimeter ye-graphing okufanele uyiphendule futhi ukhombe into ofuna ukuyikala. Isibonelo, uma ufuna ukukala umehluko wamandla kagesi, kuzofanela uvule ukudayela uye ku- “V” okumakwe ngasikhathi sendawo yokudayela. Lezi zilawuli zitholakala eduze kwesikrini se-oscilloscope, ngaphambi kwesigaba esiqondile.
Ku-multimeter yegrafu, okukhiphayo okuzenzakalelayo kuyinani. Ukuze uthole igrafu, kufanele uchofoze inkinobho ethi "Okuzenzekelayo" ngaphansi kwesikrini. Ama-Oscilloscopes azokunikeza igrafu ngokuzenzakalela. Ungathola imininingwane eyengeziwe kwigrafu usebenzisa izinkinobho ezisengxenyeni emi mpo kanye nendawo evundlile kanye nephaneli eliseduze kwesikrini.
Izinkinobho zokubamba inani nokukhipha inani lezivivinyo ezintsha zitholakala ngemuva nje kwenkinobho ye- "Auto". Izinkinobho zokugcina imiphumela ku-oscilloscope zivame ukutholakala ngaphezu kwesigaba esime mpo.
Izinhlobo Zokushanela
In i-oscilloscope, ungenza ngendlela oyifisayo ukushanela kwakho ukuze uthole igrafu ngaphansi kwemibandela ethile ongasetha. Lokhu kubizwa ngokuthi ukucupha. Ama-multimeters ezithombe awanayo le nketho futhi ngenxa yalokho, awanazo izinhlobo ezahlukene zokushanela njengama-oscilloscopes. Ama-Oscilloscopes asiza ocwaningweni ngenxa yekhono lokucupha.
sikrini
Ama-oscilloscopes esimanje angathatha izithombe-skrini zegrafu eboniswa esikrinini, futhi azigcine isikhathi esithile. Akukhona lokho kuphela, leso sithombe singadluliselwa kudivayisi ye-USB futhi. Azikho kulezi zici ezikhona itholakala ku-multimeter. Okungcono kakhulu engakwenza ukugcina ubukhulu bento ethile.
Storage
Ama-oscilloscopes aphakathi nendawo aphezulu awagcini kuphela izithombe, kepha futhi angagcina amagrafu abukhoma wesikhathi esithile. Lesi sici asitholakali kunoma iyiphi i-graphing multimeter emakethe. Ngenxa yalesi sici, ama-oscilloscopes aya ngokuya ethandwa kakhulu ngezinjongo zocwaningo, ngoba angakwazi ukugcina idatha ebucayi yokutadisha ngokuzayo.
Inkambu Yokusetshenziswa
Ama-multimeter wokuqhafaza kukhona futhi angasetshenziswa kuphela emkhakheni wobunjiniyela kagesi. Kepha ama-oscilloscopes ayasetshenziswa emkhakheni wesayensi yezokwelapha ngaphandle kobunjiniyela kagesi. Isibonelo, i i-oscilloscope ingasetshenziswa ukubuka ukushaya kwenhliziyo kwesiguli nokuthola imininingwane ebalulekile ehlobene nenhliziyo.
Cost
Ama-Oscilloscopes ayabiza kakhulu kunama-graphing multimeter. Ama-Oscilloscopes ngokuvamile aqala kusuka ku- $ 200 kuya phambili. Ngakolunye uhlangothi, ama-graphing multimeter angatholakala eshibhile njenge- $ 30 noma i- $ 50.
Ukubamba phezulu
Ama-Oscilloscopes anezici eziningi kakhulu kune-graphing multimeter. Futhi, i-graphing multimeter ayisondeli nakusondela ku-oscilloscope uma kukhulunywa ngezinto ezingazenza. Uma sekushiwo lokho, asikwazi ukusho ukuthi i-oscilloscope ishaya i-multimeter kuso sonke isigaba esisodwa futhi kufanele uthenge i-oscilloscope kuphela.
Ama-Oscilloscopes enzelwe ucwaningo. Kuzosiza ukuthola amaphutha kusifunda esidinga amagagasi aqondile futhi azwelayo. Kepha, uma inhloso yakho ukuthola ubukhulu kuphela bese ubheka ukuthi iyini ifomathi yamagagasi, ungasebenzisa kalula i-graphing multimeter. Ngeke ikwehluleke kuleyo ndaba.
Ungafunda: Ungayisebenzisa Kanjani i-Oscilloscope
Ngingu-Joost Nusselder, umsunguli we-Tools Doctor, umakethi wokuqukethwe, kanye nobaba. Ngiyakuthanda ukuzama okokusebenza okusha, futhi kanye nethimba lami ngidale izindatshana zebhulogi ezijulile kusukela ngo-2016 ukuze ngisize abafundi abathembekile ngamathuluzi namathiphu okwenza.
