Gawo la CHIMODZI
1, kuzindikira ndi kudzera m'njira inayake yakuthupi, kusiyanitsa kuchuluka kwa magawo omwe amayezedwa amtundu wina, kuti adziwe ngati magawo omwe amayezedwa ali oyenerera kapena ngati kuchuluka kwa magawo kulipo.Njira yoyerekeza kuchuluka kosadziwika koyesedwa ndi kuchuluka kwamtundu womwewo, kudziwa kuchuluka kwa kuchuluka komwe kumayesedwa ndi gulu lopimidwa, ndikuwonetsa kangapo kameneka.
Pankhani ya automation ndi kuzindikira, ntchito yodziwikiratu sikungoyang'ana ndi kuyeza kwa zinthu zomwe zatsirizidwa kapena zomwe zatha, komanso kuyang'anira, kuyang'anira ndi kuwongolera njira yopanga kapena kusuntha chinthu kuti chikhale chabwino kwambiri. chikhalidwe chosankhidwa ndi anthu, m'pofunika kuzindikira ndi kuyeza kukula ndi kusintha kwa magawo osiyanasiyana nthawi iliyonse.Tekinoloje iyi yodziwira nthawi yeniyeni ndikuyezera njira yopanga ndi zinthu zosuntha imatchedwanso ukadaulo wowunikira uinjiniya.
Pali mitundu iwiri ya miyeso: muyeso wachindunji ndi wosalunjika
Muyezo wachindunji ndi kuyeza mtengo woyezedwa wa kuwerenga mita popanda kuwerengetsa, monga: kugwiritsa ntchito thermometer kuyeza kutentha, kugwiritsa ntchito multimeter kuyeza voteji.
Kuyeza kosalunjika ndiko kuyeza kuchuluka kwa thupi komwe kumakhudzana ndi kuyezedwa, ndikuwerengera mtengo woyezedwa kudzera mu ubale wogwira ntchito.Mwachitsanzo, mphamvu P ikugwirizana ndi voteji V ndi panopa I, ndiko kuti, P = VI, ndipo mphamvu imawerengedwa poyesa voteji ndi panopa.
Kuyeza kwachindunji ndikosavuta komanso kosavuta, ndipo kumagwiritsidwa ntchito nthawi zambiri.Komabe, pamene kuyeza kwachindunji sikungatheke, kuyeza kwachindunji kumakhala kovuta kapena kulakwitsa kwachindunji ndi kwakukulu, kuyeza kosalunjika kungagwiritsidwe ntchito.
Lingaliro la sensa ya photoelectric ndi sensor
Ntchito ya sensa ndi kutembenuza kuchuluka kwa magetsi omwe si amagetsi kumagetsi amtundu wamagetsi omwe ali ndi mgwirizano wotsimikizirika, womwe umagwirizanitsa pakati pa machitidwe osakhala amagetsi ndi magetsi.Pozindikira ndikuwongolera, sensa ndi chida chofunikira chosinthira.Kuchokera pamalingaliro amphamvu, sensa imatha kugawidwa m'mitundu iwiri: imodzi ndi mphamvu yolamulira mphamvu, yomwe imadziwikanso kuti yogwira ntchito;Winawo ndi sensa yosinthira mphamvu, yomwe imadziwikanso kuti passive sensor.Mphamvu kulamulira kachipangizo amatanthauza kachipangizo adzakhala anayeza mu kusintha kwa magawo magetsi (monga kukana, capacitance) kusintha, kachipangizo ayenera kuwonjezera zosangalatsa magetsi, akhoza kuyeza magawo kusintha voteji, kusintha panopa.The mphamvu kutembenuka kachipangizo akhoza mwachindunji kusintha kuyeza kusintha kusintha voteji ndi panopa, popanda gwero masangalalo kunja.
Nthawi zambiri, kuchuluka kopanda magetsi komwe kumayenera kuyezedwa si kuchuluka kwamagetsi komwe sensor imatha kutembenuza, yomwe imafunikira kuwonjezera chipangizo kapena chipangizo kutsogolo kwa sensor yomwe ingasinthe kuchuluka kwamagetsi komwe kulibe magetsi. osakhala magetsi kuchuluka kuti sensa angalandire ndi kusintha.Chigawo kapena chipangizo chomwe chingasinthire kuyesedwa kosagwiritsa ntchito magetsi kukhala magetsi omwe alipo ndi sensor.Mwachitsanzo, poyezera voteji ndi strain strain gauge, ndikofunikira kumangiriza choyezera chamagetsi kuzinthu zotanuka za kukakamiza kogulitsa, chinthu chotanuka chimatembenuza kupanikizika kukhala mphamvu yovutitsa, ndipo strain gauge imatembenuza mphamvu yamavuto kukhala kusintha kwa kukana.Apa chiyerekezo cha strain ndi sensor, ndipo zotanuka ndi sensor.Onse sensa ndi sensa akhoza kusintha kuyeza sanali magetsi nthawi iliyonse, koma sensa atembenuza kuyeza sanali magetsi mu kupezeka sanali magetsi, ndi sensa atembenuza kuyeza sanali magetsi magetsi.
2, Photoelectric sensorzachokera zotsatira photoelectric, kuwala chizindikiro mu kachipangizo magetsi chizindikiro, chimagwiritsidwa ntchito kulamulira basi, Azamlengalenga ndi wailesi ndi TV ndi madera ena.
Masensa a Photoelectric makamaka amaphatikiza ma photodiodes, ma phototransistors, ma CD opangira ma photoresistors, ma photocoupler, masensa otengera zithunzi za cholowa, ma photocell ndi masensa azithunzi.Gome la mitundu yayikulu ikuwonetsedwa pachithunzi pansipa.Pakugwiritsa ntchito, ndikofunikira kusankha sensor yoyenera kuti mukwaniritse zomwe mukufuna.Mfundo yosankha wamba ndi:kudziwika kwamphamvu kwazithunzi zamagetsidera, osiyanasiyana mita zounikira, kopitilira muyeso-mkulu-liwiro laser sensa ayenera kusankha photodiode;Sensola yosavuta ya pulse photoelectric ya Hertz zikwi zingapo ndi chosinthira chojambula cha photoelectric chotsika kwambiri mu dera losavuta chiyenera kusankha phototransistor;Ngakhale kuti liwiro la kuyankha likucheperachepera, sensor bridge sensor yokhala ndi magwiridwe antchito abwino ndi sensor photoelectric yokhala ndi katundu wokana, sensor photoelectric mumayendedwe owunikira okha a nyali yamsewu, komanso kukana kosinthika komwe kumasintha molingana ndi mphamvu ya kuwala kuyenera kusankha. Ma CD ndi Pbs zithunzi zowoneka bwino;Ma encoder ozungulira, masensa othamanga ndi masensa othamanga kwambiri a laser ayenera kuphatikizika ndi masensa a photoelectric.
Photoelectric sensor mtundu Chitsanzo cha photoelectric sensor
PN njiraZithunzi za PN(Si, Ge, Gas)
PIN Photodiode (Si zinthu)
Avalanche photodiode(Ndi, Ge)
Phototransistor (PhotoDarlington chubu) (Si zakuthupi)
Integrated photoelectric sensor ndi photoelectric thyristor (Si zakuthupi)
Non-pn junction photocell (zinthu zogwiritsa ntchito CdS, CdSe, Se, PbS)
Thermoelectric components (zida zogwiritsidwa ntchito (PZT, LiTaO3, PbTiO3)
Electron chubu mtundu phototube, chubu kamera, photomultiplier chubu
Zomverera zina zamtundu (Si, α-Si zida)
Sensa yazithunzi zolimba (Si zakuthupi, mtundu wa CCD, mtundu wa MOS, mtundu wa CPD
Position discovery element (PSD) (Si zinthu)
Photocell (Photodiode) (Si for materials)
Nthawi yotumiza: Jul-18-2023