Ungayikhetha njani i-oscilloscope elungileyo ukuqhagamshela kwiPC yakho

Ukugqiba ukuba yeyiphi i-oscilloscope onokuyithenga ukuze uqhagamshelwe kwiPC ngumbuzo oqhelekileyo phakathi kwabantu abathanda izinto zombane kunye neengcali.Ngaphaya kweempawu zomntu ngamnye kunye neengcebiso, kukho inani lezinto zobugcisa ezinokwenza umahluko phakathi kokuthenga ngobulumko kunye nezixhobo ezithi kungekudala zingonelanga iiprojekthi zakho. Ke ngoko, siza kucalula yonke into enxulumene nokwenza ukhetho olunolwazi, sisebenzisa olona lwazi luhlaziyiweyo kunye nolwazi olubanzi.

Ayinamsebenzi nokuba ungumfundi, uligcisa lokulungisa izinto, uyinjineli okanye unomdla wokulungisa izixhobo zombane.Kule migca ilandelayo, uya kuqonda ukuba kufuneka ujonge ntoni-kwaye ngoba-ngaphambi kokuba uchithe imali yakho, kunye nokuba zeziphi iimodeli ezikhokela ukuthengisa ngoku. Ndizakuxoxa kwakhona ngoncedo lwe-oscilloscopes ye-USB ngaphezulu kwezemveli kunye nendlela yokuthatha ithuba loqhagamshelo lwekhompyuter yabo ukufumana okuninzi kumlinganiselo ngamnye.

Yintoni kanye oscilloscope PC kwaye kutheni ukhethe enye USB?

I-oscilloscope sisixhobo esisisiseko kwi-electronics. Ikuvumela ukuba ubone ngeso lengqondo indlela isignali yombane ihluka ngayo ixesha, okwenza kube lula ukufumana iingxaki, ukuhlalutya ukuziphatha kwesiphaluka, kunye nokutolika ulwazi olungenakwenzeka ukufumana nge-multimeter eqhelekileyo. Iimodeli ezenzelwe ukusetyenziswa ngekhompyuter ziqhelekile USB oscilloscopes, nto leyo ethetha iingenelo ezimbini: zixinene ngakumbi, Iipopu kunye noqoqosho, kwaye uthathe ithuba lesikrini sePC yakho kunye nezixhobo zokubonisa kunye nokuhlalutya imiqondiso.

Kutheni iimodeli ze-USB zithandwa kangaka? Ngenxa yokuba isofthiwe yayo ivumela uhlalutyo oluphambili, ukugcinwa kwedatha eninzi, kunye ne-interface eguquguqukayo kunezixhobo eziqhelekileyo.

Iinzuzo eziphambili ze-USB oscilloscope

• Ukuphatheka kunye nokuthuthuzela: Ubungakanani babo obubambene bukuvumela ukuba uzisebenzise naphi na: ufuna kuphela ilaptop yakho kunye nesixhobo ngokwaso, ngaphandle kokuxhomekeka kwiscreen esizinikeleyo.
• Umgangatho wemali: Zinoqoqosho kakhulu kuneekhompyuter zedesktop zemveli, zizenza zifikeleleke ngakumbi kubafundi nakwiilabhoratri ezincinci.
• Amandla e ukugcinwa: Ndiyabulela kwi-hard drive yekhompyuter yakho, ungagcina ukurekhoda okude kwaye uhlalutye imiqondiso enzima ngaphandle kokukhathazeka malunga nemida yomzimba yememori yangaphakathi yesixhobo.
• Isoftware ehambele phambili: Ababonisi kuphela umqondiso, kodwa bavumela uhlalutyo lwemathematika, ukugcinwa kwedatha kunye nokuthumela ngaphandle, ukuveliswa kwengxelo, ukuthathwa kwesiganeko, kwaye, kwiimeko ezininzi, uhlaziyo lwe-software.

Izinto eziphambili xa ukhetha i-oscilloscope yePC elungileyo

Imfihlelo yokuthenga okulungileyo kukwazi nokuthelekisa iinkcukacha ezibaluleke ngokwenene.Apha ngezantsi uya kufunda ngokweenkcukacha imiba ekungafanelanga ukuba ungayihoyi kuxhomekeke ekusebenziseni oceba ukukunika yona.

1. Ubungakanani boluhlu

I-bandwidth inquma ubukhulu befrikhwensi ukuba i-oscilloscope inokulinganisa ngokuchanekileyo.Ukuba usebenza ngeempawu zesantya esiphezulu (i-microcontrollers, iibhasi zedijithali, izibonakaliso ze-analog ezikhawulezayo), udinga imodeli ene-bandwidth edlula ngokucacileyo ubuninzi beempawu zakho.

Iingcebiso ezisebenzayo: Ukuxilongwa kwe-elektroniki yasekhaya, ukulungiswa kweTV, iaudio, okanye okufanayo, i-bandwidth ye-60-100 MHz idla ngokwaneleyo. Kwiiprojekthi ezininzi zobuchwephesha (unxibelelwano, iRF, iinkqubo zedijithali eziphucukileyo), qwalasela iimodeli ezine-200 MHz okanye ngaphezulu. Iimodeli zabafundi ezisisiseko zibonelela nge-60-100 MHz, nangona ezinye iimodeli eziphambili zifikelela kumaza aphezulu.

2. Ireyithi yesampulu

Ireyithi yesampulu ibonisa ukuba zingaphi iisampuli ngesekhondi enye i-oscilloscope inokubamba.Ukuba iphantsi, uya kuphulukana neenkcukacha kwiimpawu ezihamba ngokukhawuleza: kufuneka ujolise kwireyithi yesampuli 2,5-4 amaxesha e-bandwidth yesignali. Iingcali zicebisa ukuba isantya esiphezulu sesampuli, ukuthembeka ngakumbi ukuveliswa kwesignali kuya kuba kunye nokuhla kokuphazamiseka.

Umzekelo, ukuba uphawu lwakho olukhawulezayo luyi-20 MHz, i-oscilloscope kufuneka isampula ubuncinane i-80-100 MS / s (iisampulu ze-mega ngesekhondi).

3. Ubunzulu benkumbulo

Ubunzulu bememori buchaza ukuba mangaphi amanqaku anokugcinwa yi-oscilloscope ekuthathweni kwedatha enye.Okukhona ubunzulu bukhulu, kokukhona ukukwazi ukusondeza kunye nokuhlalutya iinkcukacha kwimiqondiso emide.

Ukuhlalutya iziganeko ezide okanye ukubeka abamakishi kwiziganeko ezithile ngaphakathi komqondiso omde, ubunzulu bememori bubalulekile. Ukuba imemori ilinganiselwe, awuyi kukwazi ukujonga iinkcukacha kwiimpawu xa usondeza ekubanjweni.

4. Inani lamajelo

Inani lamatshaneli limisela ukuba zingaphi iisignali onokuzilinganisa ngaxeshanye.I-oscilloscopes ye-PC ngokuqhelekileyo inikezela nge-2 okanye i-4 iziteshi, nangona iimodeli eziphambili zinokunyuka ukuya kwi-16. Kwiinkqubo ezininzi, iziteshi ezi-2 zanele, kodwa ukuba ufuna ukuthelekisa iimpawu ezininzi ngexesha elinye, khangela iimodeli ezine-4 okanye ngaphezulu.

Gcina ukhumbule ukuba amajelo amaninzi onawo, aphezulu iindleko kunye nokuguquguquka kwezixhobo.

Inkqubo ye-Trigger: Ukuthatha imisitho engundoqo

Inkqubo yokuqalisa ibalulekile ukubamba iziganeko ezithile kwisignaliEzona zixhaphazi zixhaphakileyo zibangela i-edge triggers (xa umqondiso uphakama okanye uwela ngaphantsi kwexabiso elithile), kodwa izixhobo zanamhlanje zibonelela ngokuqalisa ixesha, inqanaba lengqiqo, iiprotocol, kunye nezinye iziganeko eziphambili.

Inkqubo elungileyo yokuqalisa inceda ukunciphisa ixesha lokuxilonga, ihluze ingxolo, kwaye igxile kuphela kwizinto ezifanelekileyo. Iimodeli zamva nje ziquka i-hysteresis ehlengahlengiswayo kunye neenketho zokucupha ngokulandelelana, okwenza kube lula ukubamba imicimbi ethile okanye i-anomalies kwiimpawu ezinzima.

Ezinye iimpawu ezongezelelweyo ezifanelekileyo

Ukuhambelana kwesoftware kunye namandla

Umgangatho kunye nokusebenza kwesoftware ehamba kunye ne-oscilloscopes ye-USB iyahluka kakhulu.. Khangela iinkqubo ezicacileyo ezihambelana nenkqubo yakho yokusebenza (Windows, ii-macOS, Linux) kunye nokuvumela uhlalutyo oluphambili-usondezo, uhlalutyo olubonakalayo, umlinganiselo ozenzekelayo, ukuthunyelwa kwedatha, iingxelo, ukugcinwa kwegraphical-ukwenza uninzi lwesixhobo.

Umgangatho kunye neentlobo zeprobes

I-oscilloscope kunye neeprobes zayo zenza inkqubo yokulinganisa ngokudibeneyo.Iiprobe ezikumgangatho ophantsi okanye iiprobe ezine-bandwidth enganelanga zinokunciphisa ukusebenza kwe-oscilloscope yakho, nokuba yi-oscilloscope enkulu. Soloko ukhetha i-10x ye-passive probes kwimilinganiselo yenjongo ngokubanzi, kwaye uqwalasele umahluko okanye uphendlo lwevoltage ephezulu, ngokuxhomekeke kuhlobo lovavanyo olwenzayo.

Umahluko phakathi kwe-analog kunye ne-digital oscilloscopes

Kule mihla, uninzi lweemodeli eziqhagamshelekayo kwiPC zezedijithali..

• Analog: Babonisa umqondiso ngexesha langempela, elilungele ukujonga ngokuthe ngqo, kodwa ngaphandle kokurekhoda okanye imisebenzi yohlalutyo oluphambili.
• yedijithali: Baguqula isignali ye-analog ibe ngumqondiso wedijithali kwaye bavumele uhlalutyo lwemathematika, ukugcinwa, ukusondeza, ukususwa kwengxolo kunye neminye imisebenzi.

Ikamva lidijithali, ngakumbi ukuba ufuna ukuthatha ithuba lesoftware kunye noqhagamshelo lwePC.

Iimpawu eziphambili kunye nezongezelelo zeeoscilloscopes ze-USB zanamhlanje

Ukongeza kwiinkcukacha ezisisiseko, Iimodeli zangoku zibandakanya imisebenzi eluncedo:

• Ukugcina kunye nokuthelekisa iifom zamaza
• Ukuboniswa ngaxeshanye kwemiqondiso emininzi
• Uhlalutyo lweprotocol (I2C, SPI, UART, CAN…)
• Thumela ngaphandle kwiifomathi ezahlukeneyo
• Uhlalutyo lwe-FFT (i-Fast Fourier Transform).
• Usondezo oluneenkcukacha kunye nokuhlelwa komqondiso
• Iziboniso ezinemibala emininzi ukuze zichongwe lula
• Ukuphatheka kunye namandla ebhetri kwiPC

Iimodeli ezibonakalayo ze-USB oscilloscopes zokuqhagamshela kwiPC

Olu luhlu lulandelayo lubonisa ezona zixhobo zilinganiswe kakhulu nezicetyiswayo kwiiprofayili ezahlukeneyo:

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Iingcebiso ezisebenzayo ngaphambi kokuthenga

Ngaphambi kokuba wenze isigqibo, Hlalutya ngononophelo isicelo esiphambili kunye neempawu oza kuzilinganisaUkuba kuphela imisebenzi esisiseko okanye ukusetyenziswa ngamaxesha athile, beka phambili lula kunye neendleko eziphantsi. Ukuguquguquka okukhulu kunye nokusebenza, tyala imali kwi-bandwidth ephezulu, iireyithi zesampulu, kunye neenketho zokuxhobisa eziphambili. Jonga ukuhambelana nesoftware yakho kunye nekhompyuter.

Kukwabalulekile ukuqinisekisa ukuba umenzi ubonelela ngenkxaso, uhlaziyo, kunye nokufumaneka kweendawo ezisecaleni (ezifana neeprobe kunye neentambo).

Ukukhetha i-oscilloscope efanelekileyo yokudibanisa kwi-PC yakho kufuna ukuvavanya izinto zobugcisa-ezifana ne-bandwidth, ireyithi yesampulu, imemori, kunye neziteshi-kwaye uzilungelelanise neemfuno zakho zokwenyani. Umlinganiselo wokusebenza kwexabiso, iimpawu zesoftware, kunye nenkxaso yobuchwephesha ngundoqo ekubeni nesixhobo esisebenza ngeendlela ezininzi nesithembekileyo, ukusuka kwiiprojekthi ezisakhulayo ukuya kwizicelo zobungcali.