I-servo (i-servomechanism) sisixhobo sombane esiguqula umbane ube yintshukumo echanekileyo elawulwayo ngokusebenzisa iindlela zokuphendula ezingalunganga.
I-Servos ingasetyenziselwa ukuvelisa intshukumo yomgca okanye yesetyhula, kuxhomekeke kuhlobo lwazo. Ukwenziwa kwe-servo eqhelekileyo kubandakanya i-DC motor, isitimela segesi, i-potentiometer, i-circuit edibeneyo (IC) kunye ne-output shaft. Indawo efunwayo ye-servo igalelo kwaye ingena njengophawu lwekhowudi kwi-IC. I-IC iyalela i-motor ukuba ihambe, iqhuba amandla emoto ngokusebenzisa iigiya ezibeka isantya kunye nesalathiso esinqwenelekayo sokuhamba de umqondiso ovela kwi-potentiometer unike ingxelo yokuba indawo yomnqweno ifikelelwe kwaye i-IC iyayimisa imoto.
I-potentiometer yenza intshukumo elawulwayo inokwenzeka ngokubuyisela indawo yangoku ngelixa ivumela ukulungiswa kwemikhosi yangaphandle esebenza kwiindawo zokulawula: Emva kokuba umphezulu ushukunyiswa i-potentiometer inikezela umqondiso wesimo kunye ne-IC ibonakalisa ukunyakaza okufunekayo kwemoto de kube indawo echanekileyo ibuyiselwe.
Udibaniso lwee-servos kunye neenjini zombane zombane ezininzi zinokulungelelaniswa kunye ukwenza imisebenzi enzima ngakumbi kwiindidi ezahlukeneyo zeenkqubo ezibandakanya iirobhothi, izithuthi, ukuvelisa kunye ne-wireless sensor kunye ne-actuator network.
Isebenza njani i-servo?
I-Servos zineengcingo ezintathu ezisuka kwi-casing (Jonga ifoto ekhohlo).
Nganye kwezi ngcingo zisebenza ngenjongo ethile. Ezi ngcingo zintathu zezolawulo, amandla kunye nomhlaba.
Ucingo lokulawula lunoxanduva lokubonelela ngeempuphu zombane. I-motor iphendukela kwicala elifanelekileyo njengoko iyalelwa yi-pulses.
Xa i-motor ijikeleza, itshintsha ukuchasana kwe-potentiometer kwaye ekugqibeleni ivumela isiphaluka solawulo ukuba silawule ubungakanani bokuhamba kunye nolwalathiso. Xa i-shaft ikwindawo efunwayo, amandla okubonelela avaliwe.
Intambo yamandla inika i-servo ngamandla afunekayo ukuze isebenze, kwaye ucingo lomhlaba lunika indlela yokudibanisa ehlukileyo kumbane oyintloko. Oku kukugcina ungothuki kodwa akufuneki ukuqhuba i-servo.
Digital RC Servos Ichazwe
I-Digital ServoA Digital RC Servo inendlela eyahlukileyo yokuthumela iimpawu ze-pulse kwi-servo motor.
Ukuba i-analog servo yenzelwe ukuthumela i-voltage ye-pulse ye-50 rhoqo ngesekhondi, i-digital RC servo iyakwazi ukuthumela ukuya kuma-300 pulse ngesekhondi!
Ngalo mqondiso we-pulse ngokukhawuleza, isantya se-motor siya kunyuka kakhulu, kwaye i-torque iya kuba yinto eqhubekayo; kunciphisa inani le-deadband.
Ngenxa yoko, xa i-servo yedijithali isetyenzisiweyo, inika impendulo ekhawulezayo kunye nokukhawuleza ngokukhawuleza kwi-RC component.
Kwakhona, nge-deadband encinci, i-torque ikwabonelela ngokubamba okungcono. Xa usebenza usebenzisa i-servo yedijithali, unokufumana imvakalelo yangoko yolawulo.
Makhe ndikubonelele ngemeko yemeko. Masithi kufuneka udibanise i-servo yedijithali kunye ne-analog kumamkeli.
Xa uvula i-analog servo wheel off-center, uya kuqaphela ukuba iyaphendula kwaye iyaxhathisa emva kwexesha - ukulibaziseka kuyabonakala.
Nangona kunjalo, xa ujika ivili le-servo yedijithali ngaphandle kweziko, uya kuziva ngathi ivili kunye ne-shaft iyaphendula kwaye ibambe kwindawo oyibeka ngokukhawuleza kwaye ngokutyibilikayo.
I-Analog RC Servos Icacisiwe
I-analog RC servo motor luhlobo oluqhelekileyo lwe-servo.
Ilawula isantya senjini ngokuthumela kunye nokuvala iipulse.
Ngokuqhelekileyo, i-voltage ye-pulse ikuluhlu oluphakathi kwe-4.8 ukuya kwi-6.0 volts kwaye ihlala ihlala njalo ngelo xesha. I-analog ifumana iipulse ezingama-50 kwisekondi nganye kwaye xa iphumle, akukho mbane ithunyelwe kuyo.
I-pulse "On" ixesha elide ithunyelwa kwi-servo, ngokukhawuleza i-motor spins kwaye iphezulu i-torque eveliswayo. Enye yeengxaki ezinkulu ze-analog servo kukulibaziseka kwayo ekuphenduleni imiyalelo emincinci.
Ayifumani imotor ukujikeleza ngokukhawuleza ngokwaneleyo. Ngaphezu koko, ivelisa i-torque epholileyo. Le meko ibizwa ngokuba yi "deadband".
Ixesha lokuposa: Jun-01-2022