Yintoni kulinganiswa a analyzer spectrum

Yintoni analyzer spectrum? Nale imveliso soze nazo kubomi bemihla ngemihla, ukuba kakhulu isixhobo esithile, kwaye kuyabiza kakhulu. Kweli nqaku, siza kuqwalasela eluncedo kunye nokusetyenziswa kwezixhobo ezinjalo. Ngamafutshane, le analyzer spectrum sisixhobo ukuba linokuchazwa njenge yefrikhwensi voltmeter ukukhetha, nto leyo enza ngayo awo, ilungiswe ukuze ukubonisa ixabiso RMS lencinibakazi sine. Kwaye loo nto nje Ngamafutshane, nguwe kanye kakhulu ezinokuntsonkotha umdla.

Kubalulekile ukuqonda ukuba esi sixhobo ayikho imitha amandla, nangona ukuba analyzer spectrum ingabonisa ngqo ixabiso le parameter. Ukuba siyazi ixabiso avareji okanye kwincopho lencinibakazi sine kunye nexabiso ukumelana, kunokwenzeka ukuba uqwalasele isixhobo ukubonisa amaxabiso kwimveliso. Ngenxa kuphuhliso zobugcisa beteknoloji, analyzers spectrum yanamhlanje abe amathuba ebanzi ngokwenene.

Ukuze siqonde injongo yesi sixhobo, kuyimfuneko ukuba siqwalasele oko ilinganiswa analyzer omoya. uyakwazi ukubona igama ifowuni ukuba kusetyenziswa ukulinganisa zazo. Kwaye olunjani iimpawu? Le spectrum kuyinto isethi kwamaza sinusoidal, ngelo zizifundo ezithile banako ukunika umqondiso ingxelo a yecandelo domain ixesha. Ngokusesikweni, uphawu unalo ngokohlobo sinewave enye yamandulo. Ukuziqhelisa, kule domain kumaza a analyzer spectrum kunokubonwa ukuba lwaseNtshona Koloni ziba umqondiso iquka amaza ezimbini okanye ngaphezulu, isenokuba i harmonic yesibini kunye nabanye. Xa domain kwexesha kube lula kulinganiswa ixesha ukubetha emphethweni udini lwalo abawayo, kwakunye kwekhabhoni uphawu runout . uphawu imilinganiselo spectrum analyzer kwi domain frequency kuyimfuneko xa uyile izikimu yonxibelelwano engasebenzi ngeengcingo. Kuphela ngoncedo esi sixhobo kuyenzeka ukubona yaye emva koko nokuphelisa-band kunye nemisi zibubuxoki. Njengoko sele kutshiwo ngentla apha, ifowuni ivumela ukuchonga umqondiso ezongezelelweyo harmonic, kwaye parameter kwi izixhobo amaza erediyo kubaluleke kakhulu, kuba harmonics ezongeziweyo kuwa rhoqo abaqeshiweyo ngaloo kunokubangela uphazamiseko.

Kwakhona, le fowuni lisebenza malumga analyzer odiyo. Kuthetha ukuthini? Maxa wambi kuyimfuneko ukwenza imilinganiselo ingxolo njengoko sokuhlaba eqhelekileyo. Nasiphi na isixhobo okanye yesekethe esebenzayo sidala ingxolo. Ezo nokulinganisa ratio ingxolo kunye nomlinganiselo uphawu / ingxolo ziimpawu ezibalulekileyo isixhobo Isalathisi eqhelekileyo kunye nenkqubo.

UPawulos, sithi kwekhithi electronic ukumvavanya isiphene izixhobo eziyilelwe kufuneka nje analyzer omoya. Ixabiso le divayisi kakhulu ezibalulekileyo kwaye yahluka phezu uluhlu olubanzi. Ngokomzekelo, enye yamacebo e zilula (Rigol DSA815) liya kuxabisa malunga 50-60 amawaka engange, kodwa kuya kufuneka uhlawule 750-800 amawaka engange ukuba analyzer spectrum professional (Agilent Technologies). Radio engahlawulwayo ngenxa workshop ikhaya lakhe akunakwenzeka ukuba uthenga isixhobo enjalo, kodwa iinkampani okanye nakwiilebhu iinkampani inxaxheba kuphuhliso zobugcisa ngekhompyutha, yinto kuyimfuneko.