Indlela yokwenza tachometer ngezandla zabo?

Ngaphambi ukwenza tachometer ngezandla zakho, kungase kudingeke uqonde izici zale divayisi. Insimbi asetshenziswa ukukala inombolo linemibhikisho samandla iyunithi ngesikhathi ukunyakaza. Lolu lwazi uboniswa esibukweni elise-dashboard noma kwesikrini okhethekile. Cabangela isimiso tachometer nezindlela okwenza kube ngokwakho.

sisebenzisa microcontroller

Ukuze wenze tachometer ngezandla zakhe ngesisekelo the microcontroller, udinga imininingwane elandelayo:

• Ngqo microboard, efanelekayo Arduino wesifunda.
• Zibekele resistors.
• Ukuze version LED edingekayo LED-elementi.
• Diodes (infrared kanye fotoanalog).
• Gada. Ngokwesibonelo, LCD-isibonisi.
• I shift ukubhalisa 74HC595 hlobo.

Ngo indlela okuxoxwe umqhewu okwengeziwe awusebenzi, futhi Umlawuli we-optical. Lokhu ngokwenzenjalo uyogwema izinkinga nge ukushuba Rotor, inani izindwani kuyodingeka akunamthelela izitatimende futhi uzokwazi ukufunda ulwazi mayelana ukujikeleza sigubhu.

mlando

Ngezansi igxathu negxathu Umhlahlandlela kanjani ukwenza tachometer ngezandla zakhe ngesisekelo the microcontroller:

1. Ukuze uqale nge esihle lokukhuhla ukukhanya iphathwe futhi photodiode nje abasithathi umumo flat.
2. Manufactured Into efanayo ngesimo emapheshana, bese izingxenye ezimbili bajoyine ingcina namakhaladi ngombala omnyama.
3. Emhlanganweni kamuva esigabeni ukukhwezwa diodes, basuke soldered izintambo.
4. Amanani Ebucayi resistors ingahluka, kuncike photodiode esetshenziswa. Ukuzwela kuzovumela ukulungisa potentiometer.
5. Njengoba usuyitadishile LED wesifunda imoto tachometer kungaqondakala ukuthi kukhona inikezwa irejista shift izingcezu eziyisishiyagalombili. Ngaphezu kwalokho, isifunda sihlanganisa iSifundazwe a okucaciswe luketshezi. Ukuze ulungise isibani e izindlu kwenziwa imbobo encane.
6. Ngesikhathi isinyathelo sokugcina edingekayo ukuze solder Resistor (270 Ohm) kuya diode, bese ulikhweze socket. Isilawuli is busuka tube cubic enikeza obengeziwe amandla lwemidlalo.

Yenza tachometer elula ngezandla

Ukuze womshini kule divayisi esithathwayo njengesisekelo wokubala. Lolu khetho ilungele labo abakanye base elementi inkinga. Kuyaphawuleka ukuthi le divayisi ngamaphesenti angu-100, kanye tachometer Ngeke usakazwe esibukweni inani rotations ngomzuzu. Noma kunjalo wokubala - a okunye okuhle kwamanye amadivayisi e-amasignali ilandelana.

abalawuli exhasa noma efanayo zisetshenziselwa akhiqize isilawuli isignali. Lapho disk Ukujikeleza uboniswa isignali omunye ngemva revolution ngamunye. Xhumana nathi kuleli qophelo kumele livulwe. Basuke ivaliwe lapho iyunithi sihamba izinyo disc. Okubukwe tachometer (ngezandla zabo, njengoba sesibonile, ukwenza kube lula ngokwanele), lolu hlobo isixazululo muhle kakhulu ikakhulukazi ezimweni lapho izilinganiso awavamile. Labo abafuna ukusungula isilawuli isivinini njalo, kungcono ukhetha idivaysi eziqinile.

ukuxhashazwa

I tachometer elula, ngezandla zakhe wenza ngesisekelo wokubala ukusebenza ngemva nokunamathisela ngomthofu abathintwayo ukwengeza inkinobho ikhompyutha.

Yokukala ukujikeleza speed RPM kanje:

1. It Uvula i-wokubala.
2. Synchronously isebenze "+" ukhiye bese "1".
3. Igajethi uyagijima, wenza nesilinganiso. Ukuqinisekisa ukufundwa olunembile, kanye wokubala kufanele uqale isitophuwashi.
4. Linda imizuzwana-30 bese sibheke esibukweni. Kufanele kuvele Inani elifanele.
5. Lesi sibalo inani linemibhikisho ngemizuzwana engu-30. Ukuphindaphinda sibalo ababili, sithola inani rotations ngomzuzu.

inketho analog

tachometer Electronic, enziwe ngezandla zakhe ukuze esebenzisa udizili noma uphethiloli injini, igxile ukuguqulwa umfutho electron ahambise yona isibonisi iyunithi. Ngokuphambene kule divayisi, iphethini digital iguqulwe ibe ezinye analog ishayela ukulandelana amaqanda futhi abathandekayo, okuyinto funda bese uguqulwa isilawuli.

I isethi ephelele tachometer analog kuhlanganisa izinto ezilandelayo:

• Microboard okuyinto injongo - ukuguquka pulses analog.
• Wiring yokuxhuma zonke izakhi zedivayisi.
• Lesi silinganiso, esebenza lokubonisa ukusebenza.
• Umcibisholo, okuyinto ine phezu Inani lamanje.
• ikhoyili-eksisi Special, ukuqinisekisa ukusebenza efanele umcibisholo.
• Ukufunda isilawuli uhlobo exhasa kudivayisi.

Indlela yokwenza tachometer digital ngezandla

Amadivayisi yalolu hlobo kufanele inhloso ezifanayo kodwa izakhi ezahlukene kwesakhiwo. Ukwakha kudivayisi yakho siqu, udinga imininingwane elandelayo:

• Eight-bit Converter.
• Processor ukuthi oguqula pulses ku uchungechunge amaqanda futhi abathandekayo.
• Bonisa ukuze zibonise ubufakazi.
• Iinsetjenziswa uphazamisa uhlobo (Ukujikeleza Regulator) ne amplifier. Ngenxa yale njongo, omunye angase asebenzise shunts ekhethekile, kuye ngokuthi isimo esithile.
• Imali zokususa ulwazi.
• Ngaphezu kwalokho, processor kungenziwa exhunywe kwi-lokushisa isilawuli Isibandisi, emoyeni gumbi, injini uketshezi ingcindezi, nokunye okunjalo.
• Ukulungisa ukuhlinzwa evamile zedivayisi udinga ukufaka isofthiwe ekhethekile.

ukuguqulwa mechanical

Mechanical imoto tachometer, enziwe ngezandla zakhe, akudingi kwamandla nokulawula izifunda. Umphini is isandla fixed unomphela uzibuthe hlobo. Lapho ligijima vortex nkambu wadala okuyinto entrains isitsha olukhethekile impahla kazibuthe. Thicket kudala ukumelana ngokushintshana Kuvunguza entwasahlobo. Kukhula isivinini, oluthi izikhandle kakhudlwana ekufuneni baphambukile ifakwe umcibisholo.

Inzuzo enkulu idivayisi mechanical - umklamo elula asikho isidingo ukuthola amandla kagesi. Phakathi nemiphumela ethile engathandeki ingashiwo a ukunemba okuphezulu, futhi offset umkhawulo engezansi nesilinganiso. Kuyaphawuleka ukuthi ijubane inaliti ongaphakeme akuyona baphambuke.

ukuhlola

Made ngesandla tachometer kungabuye lilimele. Ukuhlonza imbangela yenkinga uzodinga lokwenza ukuxilongwa. Ngo nezimoto ezifakelwe esibonakalayo OBD II, ukuqinisekiswa kusetshenziswa isithwebuli. Ngaphezu kwalokho, isisetjenziswa se-elektroniki zingalawulwa besebenzisa noma iyiphi generator ishayela. Inketho engcono kungaba idivayisi eyaziwa ezinhle, i oscilloscope noma imvamisa esiphikisayo.

analog Mechanical ngomshini sokuprakthiza noma ukufakwa kokumqoka kuphela. Phambi umlamuli ukuqhuba isivinini amasheke kulula. Ingxenye ezingemuva ikhebula iqinile e umnikazi, futhi ebiyelwe is isandla isilungisiwe.

ukulungiswa

kudivayisi yokulungisa akubhekwa nzima kakhulu. I nzima kakhulu ukulungisa module kuyinto Ngokwesibonelo i wesifunda kagesi. Ngemva iphutha kwasendaweni kudingeka enye intwana engaphelele. Njengomthetho, avame awahlelanga entry, contact inkomba, inzwa, uzibuthe phezu crankshaft.

Nge okufana awayindwayo lula kakhulu. Kwanele ukufaka enye intwana, eyabonakala aphume isenzo spare entsha. Nge tachometers ezinjalo izimoto mileage lasetulu kantsi ahlala kakhulu esetshenziswa izimoto. Ngakho-ke, thola into ngeke kube nzima emakethe yezimoto noma disassembly. Ngemva ukukhanda uxhumano kudivayisi aludingi Samandla.

ukulungiswa

Tachometer ezimotweni, enziwe ngezandla zakhe, kungadinga ukulungisa. Ngenxa yokuthi imishini ngokuvamile ngalinye motor kushaft revolution inkomba okukhiphayo yebhangqa pulses, imvamisa oscillator kufanele isethwe kabili idivayisi Samandla.

Ukuze ulungiselele tachometer akakubangeli izinkinga, kubalulekile ukufunda isimiso circuit ibhuloho. Ngokwesibonelo, ne enkulu alinganayo namagugu resistors, voltage ngesikhathi amaphuzu elingana, ngakho-ke, akukho notshwala amanje nawesikhathi inaliti ivuliwe zero. Uma inani le-Resistor lokuqala ukunciphisa ukwanda voltage ngesinye isikhathi, kanti eyesibili uhlala ingashintshiwe. Yamanje odabula milliammeter futhi umcibisholo uzoqala ezihambayo. Lokhu kusho ukuthi ngesikhathi voltage njalo futhi ngesikhathi iphuzu yokushintsha yesibili ngesikhathi endaweni yokuqala, inaliti tachometer idluliswa isihlobo esikalini.

Ekuphetheni

Yenza imoto izandla zakho tachometer ngempela ngempela, abakhona uma ulwazi oluyisisekelo Ihluzo Elingafaki Ukuqoka nesifiso sakhe. Konke okudingekayo - kungcono wesifunda ngomumo, insimbi nokunamathisela ngomthofu futhi imininingwane eyisisekelo. Kuzothatha umsebenzi hhayi ningi than kwezinsuku ezimbili, kanye Ukudilizwa futhi ukufakwa. Ungakhetha umkhiqizo ngokwezidingo zabo: kusuka kudivayisi elula esekelwe wokubala noma tachometer okuthuthukile esekelwe Arduino isikimu. Ngaphambi kokuba uqale, ukuhlola isimiso zedivayisi njalo ku imoto yakho.