IUkubeka ilisoUHy-3sf udlala indima ephambili kwimizi-mveliso yokubeka iliso kwiNdawo yokuBekwa kweNdawo yokuBonakala kunye nempazamo. Ukulungiswa kwesiginali ngokuchanekileyo yikhonkco eliphambili lomsebenzi walo osebenzayo, ochaphazela ngqo umgwebo wenqanaba lesixhobo kunye nokuxela kwangaphambili kweziphoso. Eli nqaku liza kucacisa kwinkqubo yokulungisa umqondiso we-Hy-3sf.

Ukufunyanwa kwesiginali

I-1. Iziphumo zenzwa

UHy-3sf uqalisa ukufumana umqondiso ukusuka kumthombo wentshukumo, uhlala kwiisivamvo sokungenaUkufumana ixesha lokwahlula-hlula kwe-Analog le-ANAG elineNkcukacha--mali yokuSebenza. Umzekelo, ekubekeni esweni koomatshini obukhulu bokujikeleza njengeenjini okanye abavelisi, oosoyeza abakhawulezileyo kufakwa kwiindawo eziphambili zezixhobo, ezinjengeebheringi.

Ezi voyile zinokuguqula ukuntywila koomatshini kwimiqondiso yombane, kunye neempawu zempawu zazo eziveza imiqondiso yazo njengokwemifanekiso kunye nokuhamba ngokusondeleyo zihambelana kakhulu nemeko yokuntywila kwezixhobo. Umzekelo, xa izixhobo zisebenza ngokwesiqhelo, umqondiso wokukhawulezisa uqhubela phambili ngaphakathi koluhlu oluzinzileyo; Xa izixhobo ziyasilela, njengokuthathwa mpazamo okanye ukunxiba, i-amesm kunye neempawu zesantya somqondiso ziya kutshintsha kakhulu.

2. Ukuzimisela kweparamitha

Kwisixhobo sedijithali Hy-Hubital Hy-3sf, ukulungiselela ngokufanelekileyo ukwakha kwakhona i-domain yamaza, izinga lesampulu kunye nenani lamanqaku eSandilime kufuneka ligqitywe. Ubude bexesha lokujonga ilingana nexesha lesampulu luphindaphindwe linani lamanqaku asampulu. Umzekelo, ukuba ixesha lokutshintsha komqondiso wokuntywila ukuze ubekwe esweni liyi-1 yesibini, ngokwe-Sampling Theorel Theorem (i-goplist theorem), isampuli yesampulu kufuneka ibe ngaphezulu kabini kwesantya esiphezulu somqondiso. Ukuthatha ukuba eyona nto iphakamileyo ye-vibrary yezixhobo yi-500hz, iSampul yesampulu inokukhethwa ukuba ingaphezulu kwe-1000Hz.

Ukukhethwa kwenani lamanqaku asampulu kuyabi. Ukhetho oluqhelekileyo luyi-1024, amandla enani eli-2, engalunganga kuphela ukubala ukubala, kodwa ineengenelo ezithile ekusetyenzweni kweenkcukacha.

Ukuphawula umqondiso

1. Ukucoca

Isihluzi se-Pass-Pass: esetyenziselwa ukuphelisa ingxolo enkulu yokuphazamiseka. Umzekelo, kufutshane nezinye izixhobo zombane, kunokubakho ukuphazamiseka okuphezulu kwe-elektromagnetic. Isihluzi esisezantsi esisezantsi sinokususa ngokufanelekileyo ezi mpawu ziphezulu kunoluhlu oluqhelekileyo lwe-vibral of vibire lwezinto kwaye zigcine frequency ephantsi kakhulu kwimiqondiso yomqondiso wexesha eliphakathi.

Isihluzi esiphezulu sokudlula: sinokuphelisa i-DC kunye nengxolo enkulu. Ngexesha lokuqalisa okanye ukumisa isigaba sezixhobo, kunokubakho i-off-freset ephantsi okanye i-drift imiqondiso. Isihluzi esiphezulu sokudlula sinokuzihlumisa ngaphandle ukuze siqinisekise ukuba umqondiso obonisa ubukhulu becala uqhekekelo lwezixhobo lugcinwa.

Icebo lokucoca i-bandpass: Icebo lokucoca i-bandpass liza kudlala xa kufanelekile ukugxila kumqondiso wokuhluma ngaphakathi kuluhlu oluthile. Umzekelo, kwezinye izixhobo ezinendawo yokujikeleza ngokujikelezayo, ngokubeka uluhlu lwe-bandpass ye-filit ye-filitch, i-vibrare enxulumene neli candelo inokubekwa esweni ngokuchanekileyo.

I-2. Ukuguqulwa komqondiso kunye nokudityaniswa

Ngamanye amaxesha, umqondiso wokukhawulezisa kufuneka uguqulwe ube kwi-velocity okanye isambuku. Nangona kunjalo, kukho imiceli mngeni kule nkqubo yokuguqula. Xa i-velocity okanye isiginali yokufuduka yenziwa kwinzwa yesantya, ukudityaniswa komqondiso wegalelo kusetyenziswa kakuhle ngesekethe i-analog kuba ukudityaniswa kwedijithali kuba ukudityaniswa kwedijithali ngenxa yenkqubo enamandla ye-A / D. Kuba kulula ukwazisa iimpazamo ezininzi kwisekethe yedijithali, kwaye xa kukho ukuphazamiseka kwimidlalo ephantsi, ukudityaniswa kwedijithali kuya kukhulisa ukuphazamiseka.

Fft (ngokukhawuleza okuguqula i-4ier

1. Imigaqo esisiseko

UHy-3sf usebenzisa ukuqhubekeka kwe-fft ukubola i-Sampling ye-Global ye-Global kwiSamPing kwiCandelo lezoThengiso. Le nkqubo ifana nokubopha i-Dealting isandi esidityanisiweyo sesandi esidityaniswe.

Umzekelo, kumqondiso onobunzima oqukethe izinto ezininzi rhoqo, i-FTT inokubola ngokuchanekileyo ukufumana i-Ameslitu

2. Ukuseta kweparamitha

Umzekelo: Umzekelo, unokukhetha imigca eyahlukileyo efana ne-100, 200, 400, njl. Njl. Ukuba i-FMAX i-120000cpm, imigca engama-400, isisombululo yi-300cpm ngomgca ngamnye.

Ubuninzi bokubuyela umva (i-FMAX): Xa kusenziwa i-FMAX, iiparamitha ezinjengeefilitha ezichasene ne-anti-alit nazo zisetiwe. Yeyona ndlela iphakamileyo yokuba isixhobo esinokulinganisa kwaye sibonise. Xa ukhetha, kufuneka ichazwe ngokusekwe ngokubhekisele kuluhlu lwexesha elindelekileyo lwezixhobo.

Uhlobo oluqhelekileyo kunye nenani eliphakathi: Ukuphakama kuyanceda ukunciphisa ifuthe lengxolo engaqhelekanga. Iindidi ezahlukeneyo zokuqala (ezinjengee-Arithmetic zithetha ukuthi, i-Geometri ithetha, njl. Njl.) Kwaye amanani aphezulu aphakathi anokuphucula uzinzo lomqondiso.

Uhlobo lwefestile: Ukukhetha uhlobo lwewindows Umzekelo, iintlobo ezahlukeneyo zefestile zefestile ezinjenge-haning Window kunye ne-Hamming Window zinezibonelelo zazo kwiimeko ezahlukeneyo.

Uhlalutyo olubanzi lwedatha

1. Uhlalutyo loqwalaselo

Ngokwenza uhlalutyo lwexesha ledatha yokuhambisa i-threction yedatha, imeko yenqanaba elipheleleyo lemidlalo ijongwa. Umzekelo, njengoko izixhobo zibaleka ixesha elide, ngaba i-ampribid epheleleyo i-amplid ngokuthe ngcembe inyuka, incipha, okanye ihlale izinzile? Oku kunceda ekumiseleni impilo iyonke yezixhobo. Ukuba i-ampribed ewonke iphantsi iphantsi ekuqaleni kokusebenza kwesiqhelo kwezixhobo kwaye ngokuthe ngcembe inyuka emva kwexesha, inokubonisa ukuba izixhobo zinemingcipheko yokunxiba okanye engaphumeleli.

I-2. Ukuchonga okungalunganga

Chonga uhlobo lwempazamo ngokusekwe kubudlelwane obuninzi kunye nobudlelwane obuzayo yecandelo ngalinye lokuhamba komqondiso. Umzekelo, xa izixhobo zinetyala elingalungelelaniyo, i-amprastic enkulu idla ngokubonakala kwi-frequency yamandla kwinxalenye ejikelezayo (efana ne-frequed ehambelana ne-1 isantya); Kwaye xa kukho isiphoso esinetyala, isibonisi esingaqhelekanga siyavela kwicandelo le-frequency elinxulumene nefreyini yendalo.

Kwangelo xesha, phantsi kweemeko ezifanayo zokusebenza, ubudlelwane besigaba sophawu lwentshukumo yenxalenye yomatshini kunye nenye indawo yokulinganisa kumatshini unokubonelela ngemikhondo yempazamo. Umzekelo, kwisibini senxalenye yezixhobo ezijikelezayo, ukuba azingqinelani, umahluko wesigaba sophawu lwabo lokuhambisa izinto ziya kwahluka ngokwesiqhelo.

Inkqubo yokulungisa umqondiso ye-vibration hy-3sf yinkqubo entsonkothileyo nenocwangco. Ukusuka ekufumaneni isiginali kwi-FFT ukuqhubekeka nokuhlaziywa kwedatha epheleleyo, ikhonkco nganye ibalulekile. Ukulungiswa kwesiginali ngokuchanekileyo kunokubonelela ngesiseko esinokuthenjwa solondolozo lwemizi-mveliso, nceda ufumane iziphoso ezifihliweyo zezixhobo, kunye nokuphucula ukuthembeka kwezixhobo kunye nokusebenza kakuhle. Ngokusebenzisa i-in-theind yokuqonda kunye nokusetyenziswa okufanelekileyo kwetekhnoloji yokulungisa imiqondiso kunye neeparamitha, i-Hy-3sf inokungcono idlale indima ebalulekileyo kwizixhobo zomsebenzi wezixhobo.

Xa ujonga ixesha eliphezulu, elidumileyo lokuthembeka, i-yoyik ngokungathandabuzekiyo kukhetho olufanele ukuthathela ingqalelo. Inkampani ithathe inxaxheba ekunikezeleni ngezixhobo zamandla amandla kubandakanya izixhobo ze-turbine, kwaye iphumelele iingxowa-mali ngokubanzi kwiimveliso zayo eziphezulu kunye neenkonzo. Ngolwazi oluthe kratya okanye imibuzo, nceda tsalela inkonzo yabathengi engezantsi:

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