Kutengera mtundu wa chinthu chomwe chapezeka, kugwiritsa ntchito kwawo kwa Magnetic Hall effect sensor kumatha kugawidwa m'njira zachindunji komanso kugwiritsa ntchito molakwika.Yoyamba ndiyo kuzindikira mwachindunji mphamvu ya maginito kapena mawonekedwe a maginito a chinthu choyesedwa, ndipo chomaliza ndicho kuzindikira mphamvu ya maginito yomwe yayikidwa pa chinthu choyesedwa.Mphamvu ya maginito iyi ndi yomwe imanyamula zomwe zapezeka.Kupyolera mu izo, zambiri zopanda magetsi komanso zopanda maginito zakuthupi, monga kuthamanga, kuthamanga, ngodya, kuthamanga kwa angular, kusinthika, kuthamanga kozungulira komanso nthawi yomwe kusintha kwa dziko logwira ntchito kumasinthidwa kukhala kuchuluka kwa magetsi kuti azindikire ndikuwongolera.
Masensa a Hall effect amagawidwa mumitundu ya digito ndi analogi kutengera chizindikiro chotuluka.
Mphamvu yamagetsi yamagetsi yotulutsa digito Ma sensor a Hall effect ali ndi ubale wofananira ndi mphamvu ya maginito ogwiritsidwa ntchito.
Analogi zotsatira Hall effect sensor imakhala ndi Hall element, linear amplifier ndi emitter follower, yomwe imatulutsa kuchuluka kwa analogi.
Miyezo Yosamuka
Awiri okhazikika maginito ngatiMaginito a Neodymiumamayikidwa ndi polarity yemweyo.Digital Hall sensor imayikidwa pakati, ndipo mphamvu yake ya maginito ndi zero.Mfundoyi ingagwiritsidwe ntchito ngati zero point of displacement.Sensa ya holo ikasuntha, sensor imakhala ndi mphamvu yamagetsi, ndipo voliyumu imayenderana mwachindunji ndi kusamutsidwa.
Muyeso wa Mphamvu
Ngati magawo monga kupsinjika ndi kukakamizidwa kusinthidwa kukhala kusamutsidwa, kukula kwa kupsinjika ndi kupsinjika kumatha kuyeza.Malinga ndi mfundo iyi, mphamvu ya sensa imatha kupangidwa.
Angular Velocity Measurement
Ikani chidutswa chachitsulo chachitsulo m'mphepete mwa diski ya zinthu zopanda maginito, ikani kachipangizo ka holo pafupi ndi m'mphepete mwa disk, tembenuzani disk kwa kuzungulira kumodzi, sensa ya holo imatulutsa phokoso, kotero kuti chiwerengero cha zosinthika ( counter) akhoza kuyezedwa.Ngati ma frequency mita alumikizidwa, liwiro limatha kuyeza.
Linear Velocity Measurement
Ngati kusintha kwa Hall sensor kumakonzedwa pafupipafupi panjanji molingana ndi malo omwe adakonzedweratu, chizindikiro cha pulse chimatha kuyeza kuchokera kudera loyezera pomwe maginito okhazikika ngati.Samarium Cobaltyoyikidwa pagalimoto yoyenda imadutsamo.Kuthamanga kwa galimoto kungayesedwe molingana ndi kugawidwa kwa chizindikiro cha pulse.
Kugwiritsa ntchito Hall Sensor Technology mu Magalimoto a Magalimoto
Ukadaulo wa masensa a Hall umagwiritsidwa ntchito kwambiri m'mafakitale amagalimoto, kuphatikiza mphamvu, kuwongolera thupi, kuwongolera ma traction ndi anti lock braking system.
Mawonekedwe a Hall sensor amatsimikizira kusiyana kwa dera lokulitsa, ndipo zotsatira zake ziyenera kutengera chipangizo cholamulidwa.linanena bungwe akhoza analogi, monga mathamangitsidwe udindo sensa kapena throttle udindo sensa;kapena digito, monga crankshaft kapena camshaft position sensor.
Chigawo cha Hall chikagwiritsidwa ntchito ngati sensor ya analog, sensor iyi imatha kugwiritsidwa ntchito ngati thermometer mu air conditioning system kapena throttle position in power control system.Chigawo cha holo chimalumikizidwa ndi amplifier yosiyana, ndipo amplifier imalumikizidwa ndi transistor ya NPN.Maginito okhazikikaNdi FeB or SmCoimakhazikika pamtengo wozungulira.Mtsinjewo ukazungulira, mphamvu ya maginito pa holoyo imalimbikitsidwa.Magetsi a Hall omwe amapangidwa amafanana ndi mphamvu ya maginito.
Chigawo cha holo chikagwiritsidwa ntchito pazizindikiro za digito, monga crankshaft position sensor, camshaft position sensor kapena galimoto yothamanga, dera liyenera kusinthidwa poyamba.Chigawo cha holocho chimalumikizidwa ndi amplifier yosiyana, yomwe imalumikizidwa ndi choyambitsa cha Schmidt.Pakusintha uku, sensor imatulutsa chizindikiro choyatsa kapena chozimitsa.M'mabwalo ambiri amagalimoto, masensa a Hall ndi zotengera zamakono kapena mabwalo apansi.Kuti amalize ntchitoyi, NPN Transistor iyenera kulumikizidwa ndi zotulutsa za Schmitt.Mphamvu ya maginito imadutsa mu holo, ndipo tsamba lomwe lili pa gudumu la trigger limadutsa pakati pa mphamvu ya maginito ndi gawo la holo.
Nthawi yotumiza: Oct-25-2021