Ukuqonda i-OCT/Pulse Output

1. Inkcazo kunye neNgcinga eSisiseko

Iziphumo ze-OCT

• I-optical coupler, eyaziwa ngokuba yi-opto-isolator, isembindini we-OCT output. Iqulathe i-infrared light - emitting diode (LED) kunye ne-phototransistor. Xa isignali yombane isetyenziswa kwicala lokufaka le-optical coupler, i-LED ikhupha ukukhanya kwe-infrared. Olu kukhanya luza kubetha i-phototransistor kwicala lokufaka. Ukuqhuba kwe-phototransistor kuyatshintsha xa kujongwa amandla okukhanya okwenzekayo. Kwimeko ye-OCT output, i-electrical output evela kwi-phototransistor isetyenziselwa ukuhambisa ulwazi. Le output inokuba ngohlobo lwesignali yedijithali, nokuba iphezulu okanye iphantsi, kuxhomekeke ekubeni i-LED ikhanyisiwe okanye ayikhanyi. Ukusetyenziswa kwe-optical coupler kubonelela ngokwahlukana kombane phakathi kweesekethe zokufaka kunye nezokukhupha. Le solid ibaluleke kakhulu kwizicelo apho kunokubakho umahluko ophezulu we-voltage okanye ingxolo yombane kwicala lokufaka enokuphazamisa okanye yonakalise i-sensitive output - electronics esecaleni. Umzekelo, kwinkqubo yokusasazwa kwamandla, apho imiqondiso yombane ye-voltage ephezulu ijongwa khona, i-OCT output inokudlulisa ngokukhuselekileyo ulwazi malunga nesimo okanyeimilinganiselokwezi sekethe zevolthi ephezulu ukuya kwinkqubo yolawulo okanye yokubeka esweni yevolthi ephantsi ngaphandle komngcipheko wokuphazamiseka kombane okanye iisekethe ezimfutshane.

Isiphumo sePulse

• Isiphumo sepulse sibhekisa ekudalweni kothotho lweepulse zombane ezahlukeneyo. Ipulse lutshintsho oluthatha ixesha elifutshane kwinqanaba lesignali yombane, oluqhele ukusuka kwimeko ephantsi ukuya kwimeko ephezulu uze ubuyele kwimeko ephantsi. Iimpawu zezi pulse, ezifana nefrequency yazo (inani leepluses ngexesha leyunithi), ububanzi (ubude benxalenye yemeko ephezulu yepulse), kunye ne-amplitude, zithwala ulwazi. Kwizixhobo ezininzi zokulinganisa, ezifana neemitha zokuhamba kunye neemitha zamandla, ubungakanani obulinganiswayo buguqulwa bube sisignali yepulse ehambelanayo. Umzekelo, kwimitha yokuhamba kwamanzi, umthamo ngamnye wamanzi adlula kwimitha unokubangela ukuveliswa kwepulse enye yombane. Ngokubala inani lezi pulses kwixesha elithile, umthamo opheleleyo wokuhamba kwamanzi unokumiselwa. Ifrequency yeepulse ihambelana ngokuthe ngqo nesantya sokuhamba, kunye nesantya sokuhamba esiphezulu esibangela isantya sokuhamba esiphezulu.

2. Imigaqo Yokusebenza

OCT - I-Pulse Generation esekwe kwi-OCT

• Kwezinye iinkqubo, i-OCT isetyenziselwa ukuvelisa i-pulse output. Umzekelo, kwikhonkco lonxibelelwano lwedijithali phakathi kweenkqubo ezimbini ezizimeleyo ngombane, i-microcontroller kwicala lokuthumela ingathumela uthotho lwemiqondiso yedijithali. Ezi signals zisetyenziselwa ukuqhuba i-LED kwi-optical coupler. Njengoko i-microcontroller itshintsha isignali phakathi kweemeko eziphezulu nezisezantsi, i-LED iyavula kwaye icime ngokufanelekileyo. I-phototransistor kwicala lokukhupha emva koko ivelisa uthotho lwee-pulses ezifanayo. Ukuhlukaniswa kombane okunikezelwa yi-OCT kuqinisekisa ukuba nayiphi na ingxolo yombane okanye ii-voltage transients kwi-seekethe yokuthumela-ecaleni ayichaphazeli i-receiving-side circuit. Oku kuluncedo ngakumbi kwiindawo ezinokuphazamiseka okukhulu kwe-electromagnetic, njengeefektri zoshishino apho iimoto ezinkulu kunye nezinye izixhobo zombane zisebenza khona.

Ukuveliswa kwePulse evela kwiiSensors

• Kwizicelo ezisekelwe kwisensor, inkqubo yokuvelisa i-pulse output inxulumene nobungakanani obubonakalayo. Thatha i-magnetic pickup sensor esetyenziselwa ukulinganisa isantya sokujikeleza kwe-shaft njengomzekelo. I-sensor yenzelwe ukubona ukudlula kwezinto ze-magnetic (ezifana namazinyo kwigiya eqhotyoshelwe kwi-shaft). Ngalo lonke ixesha into ye-magnetic idlula kwisensor, ibangela utshintsho kwisiphumo sesensor. Olu tshintsho luyalungiswa kwaye lubunjwe lube yi-pulse. Ukuphindaphinda kwezi pulses kunxulumene ngokuthe ngqo nesantya sokujikeleza kwe-shaft. Ukuba i-shaft ijikeleza ngokukhawuleza, izinto ezininzi ze-magnetic zidlula kwisensor ngexesha leyunithi, nto leyo ebangela i-pulse frequency ephezulu. Le pulse output ingathunyelwa kwi-microcontroller okanye kwenye isixhobo solawulo ukuze kuqhutyekwe phambili, njengokubala isantya sokujikeleza kunye nokusibonisa kwimonitha.

3. Izicelo

Ukuzenzekelayo kweShishini

• Kwiinkqubo ze-automation zemizi-mveliso, i-OCT/pulse output isetyenziswa kakhulu. Umzekelo, kwinkqubo ye-conveyor-belt, ii-proximity sensors ezine-pulse output zingasetyenziselwa ukubona ubukho kunye nokuhamba kwezinto kwi-belt. Ngalo lonke ixesha into idlula kwi-sensor, i-pulse yenziwa. Ezi pulses zingabalwa yi-programmable logic controller (PLC) ukuze zilandele inani lezinto ezithuthwayo. I-OCT output isetyenziswa xa ezi sensors zifuna ukunxibelelana ne-PLC ngelixa zigcina ukwahlulwa kombane, zikhusela i-security PLC circuitry kwingxolo yombane enokubakho okanye ii-voltage spikes kwindawo yemizi-mveliso.

Ukulinganisa Amandla

• Kwimitha yombane negesi, ukuphuma kwe-pulse yinto eqhelekileyo. Kwimitha yombane, ukusetyenziswa kwamandla kulinganiswa ngokwenani leeyure ze-watt ezisetyenzisiweyo. I-circuit yangaphakathi yemitha iguqula amandla ombane alinganisiweyo abe luchungechunge lwee-pulses. Okukhona kusetyenziswa amandla amaninzi, kokukhona kuvela ii-pulses ezininzi. Ezi pulses zingathunyelwa kwi-data logger okanye kwinkqubo ye-smart grid ukuze kujongwe kude kwaye kuhlawuliswe. Ukusetyenziswa kwe-pulse output kwenza kube lula inkqubo yonxibelelwano kwaye kuvumela ukuhlanganiswa okulula nezinyeiinkqubo zolawulo lwamandla.

Izixhobo kunye nokulinganisa

• Kwizixhobo ezahlukeneyo zokulinganisa, ezinje ngee-oscilloscopes kunye nee-frequency counters, i-OCT/pulse output ingasetyenziselwa ukulinganisa kunye nokudlulisa isignali. Umzekelo, umthombo wokulinganisa unokuvelisa imiqondiso ye-pulse echanekileyo ene-frequency kunye ne-amplitudes ezaziwayo. Ezi pulses zingathunyelwa kwisixhobo esilinganiswayo nge-interface esekelwe kwi-OCT ukuqinisekisa ukusebenza kokulinganisa ngokuchanekileyo. Kwi-frequency counter, isignali yokufaka, enokuba yi-pulse train evela kwi-sensor okanye ikhonkco lonxibelelwano, iyabalwa kwaye ihlalutywe ukuze kuchongwe i-frequency yesignali.