Kunzwisisa OCT/Pulse Output

1. Tsananguro uye Pfungwa Yekutanga

Kubuda kwaOCT

• Chinobatanidza magirazi, chinozivikanwawo se opto - isolator, ndicho chiri pakati peOCT output. Chine infrared light - emitting diode (LED) uye phototransistor. Kana chiratidzo chemagetsi chikaiswa kudivi rekupinda re optical coupler, LED inoburitsa chiedza che infrared. Chiedza ichi chinobva charova phototransistor kudivi rekupinda. Kufambisa kwe phototransistor kunochinja zvichienderana nekusimba kwechiedza chechiitiko. Muchirevo cheOCT output, kubuda kwemagetsi kubva ku phototransistor kunoshandiswa kuendesa ruzivo. Kubuda uku kunogona kuva muchimiro chedigital signal, iyo iri yakakwira kana yakaderera, zvichienderana nekuti LED yakavhenekerwa here kana kuti kwete. Kushandiswa kwe optical coupler kunoita kuti magetsi aparadzane pakati pema input ne output circuits. Kuparadzaniswa uku kwakakosha zvikuru mumashandisirwo apo pangave nekusiyana kwe high voltage kana ruzha rwemagetsi kudivi rekupinda izvo zvinogona kukanganisa kana kukuvadza sensitive output - side electronics. Semuenzaniso, mu power distribution system, uko high voltage electrical signals dziri kutariswa, OCT output inogona kutamisa ruzivo nezve mamiriro kanazviyeroyeaya macircuit ane voltage yakakwira kuenda kune system yekudzora voltage yakaderera kana yekutarisa pasina njodzi yekukanganiswa kwemagetsi kana macircuit mapfupi.

Kubuda kwePulse

• Kubuda kwepulse kunoreva kugadzirwa kwematanho akasiyana emagetsi. Kufamba kwepulse kuchinja kwenguva pfupi muhuwandu hwechiratidzo chemagetsi, kazhinji kubva padanho rakaderera kuenda padanho rakakwirira wobva wadzokera padanho rakaderera. Hunhu hwemapulse aya, akadai sehuwandu hwawo (nhamba yemapulse panguva imwe neimwe), hupamhi (nguva yechikamu chedanho rakakwirira chepulse), uye amplitude, zvinotakura ruzivo. Muzvishandiso zvakawanda zvekuyera, zvakaita sema flow metres nema energy metres, huwandu huri kuyerwa hunoshandurwa kuita pulse signal inoenderana. Semuenzaniso, mu water flow meter, unit yega yega vhoriyamu yemvura inopfuura nemumita inogona kukonzera kugadzirwa kwe electrical pulse imwe chete. Nekuverenga huwandu hwemapulse aya munguva yakatarwa, huwandu hwese hwemvura hunogona kutsanangurwa. Kuwanda kwemapulse kunoenderana zvakananga ne flow rate, ne flow rate yakakwira zvichikonzera pulse frequency yakakwira.

2. Nheyo dzeKushanda

OCT - Kugadzira Pulse Yakavakirwa Pamhepo

• Mune mamwe masisitimu, OCT inoshandiswa kugadzira kubuda kwepulse. Semuenzaniso, mukubatana kwedhijitari pakati pemasisitimu maviri emagetsi akaparadzaniswa, microcontroller iri kudivi rinotumira inogona kutumira zviratidzo zvedhijitari zvakatevedzana. Zviratidzo izvi zvinoshandiswa kufambisa LED mu optical coupler. Sezvo microcontroller ichichinja chiratidzo pakati pemamiriro epamusoro neakaderera, LED inobatidza nekudzima zvinoenderana. Phototransistor iri kudivi rinoburitsa inobva yagadzira zvikamu zvinoenderana. Kupatsanurwa kwemagetsi kunopiwa neOCT kunoita kuti ruzha rwemagetsi kana voltage transients padunhu rinotumira magetsi harukanganisi dunhu rinogamuchira magetsi. Izvi zvinonyanya kubatsira munzvimbo dzine kukanganiswa kwakawanda kwemagetsi, senge mafekitori emaindasitiri uko mota hombe nezvimwe zvishandiso zvemagetsi zviri kushanda.

Kugadzira Pulse Kubva kuSensors

• Mumashandisirwo akavakirwa pa sensor, maitiro ekugadzira kubuda kwe pulse ane chekuita nehuwandu hwemuviri huri kunzwiwa. Tora sensor ye magnetic pickup inoshandiswa kuyera kumhanya kwekutenderera kwe shaft semuenzaniso. Sensor yakagadzirirwa kuona kupfuura kwezvinhu zve magnetic (senge mazino ari pagiya rakabatana ne shaft). Nguva imwe neimwe iyo chinhu che magnetic chinopfuura ne sensor, chinokonzera shanduko mukubuda kwe sensor. Kuchinja uku kunozogadziriswa uye kuumbwa kuita pulse. Kuwanda kwema pulse aya kwakanangana nekumhanya kwekutenderera kwe shaft. Kana shaft ikatenderera nekukurumidza, zvinhu zvakawanda zve magnetic zvinopfuura ne sensor panguva imwe neimwe, zvichikonzera pulse frequency yakakwira. Kubuda kwe pulse uku kunogona kutumirwa kune microcontroller kana imwe control device kuti igadziriswe zvakanyanya, senge kuverenga kumhanya kwekutenderera uye kuiratidza pane monitor.

3. Mashandisirwo

Kuzvigadzira Kwemaindasitiri

• Mumasystem ekugadzira otomatiki eindasitiri, OCT/pulse output inoshandiswa zvakanyanya. Semuenzaniso, musystem ye conveyor-belt, ma sensor epedyo ane pulse output anogona kushandiswa kuona kuvapo nekufamba kwezvinhu zviri pabhandi. Nguva imwe neimwe chinhu chinopfuura ne sensor, pulse inogadzirwa. Ma pulse aya anogona kuverengwa ne programmable logic controller (PLC) kuti arambe achitevera huwandu hwezvinhu zviri kutakurwa. OCT output inoshandiswa kana ma sensor aya achida kutaurirana ne PLC uku achichengetedza electrical isolation, achidzivirira sensitive PLC circuitry kubva kune potential electrical noise kana voltage spikes munzvimbo yeindasitiri.

Kuyera Simba

• Mumamita emagetsi negasi, kubuda kwepulse chinhu chinowanzoitika. Pamita yemagetsi, kushandiswa kwesimba kunoyerwa zvichienderana nehuwandu hwemawatt - maawa anoshandiswa. Kutenderera kwemukati memita kunoshandura simba remagetsi rakayerwa kuita nhevedzano yepulse. Simba rakawanda rinodyiwa, ndipo panogadzirwa mapulse akawanda. Mapulse aya anogona kutumirwa kudata logger kana smart grid system yekutarisa kure uye kubhadharisa. Kushandiswa kwepulse output kunoita kuti kutaurirana kuve nyore uye kunobvumira kubatanidzwa nyore nyore nedzimwe nzira.masisitimu ekutonga simba.

Kugadzira Zvishandiso uye Kuyera

• Muzvishandiso zvakasiyana-siyana zvekuyera, zvakaita se oscilloscopes uye frequency counters, OCT/pulse output inogona kushandiswa pakuenzanisa uye kutamisa masaini. Semuenzaniso, calibration source inogona kugadzira masaini chaiwo epulse ane ma frequency anozivikanwa uye amplitudes. Ma pulse aya anogona kutumirwa kuchishandiso chiri kuenzaniswa kuburikidza ne OCT - based interface kuti ive nechokwadi chekuti chiyero chinoshanda zvakanaka. Mu frequency counter, input signal, iyo inogona kunge iri pulse train kubva ku sensor kana communication link, inoverengwa uye inoongororwa kuti ione frequency yesignal.