Transduser Induktif
Muhimmanci induktif transducer suna da shiga hakan da za a yi abin da ke canza ba. Misali, LVDT, wani abu daga cikin muhimman induktif transducer, ya kula tushen da ake fadada da ita daidai su ne da voltage da ake samun bayan biyu na voltage. Voltage na biyu bai kan abubuwa da ake samu saboda indaksiya da flux da ke canza a tsakiyar voltage na biyu saboda tushen barin iron. Duk da haka, LVDT ya fi sani a nan don in bayarwa da prinsipi na induktif transducer. LVDT zai tabbatar da a takawa waɗanda ake karɓe da al'adu a nan. Amma a nan yana iya kula amsa mai girma game da induktif transducer.
A nan a lura da maimakon zuwa hakan da za a yi muhimman induktif transducer. Wannan zai a yi da canza flux da ita daidai su ne da abin da ke canza. Canzan flux da ke canza inductance da ke canza, da kuma inductance da ke canza zai iya kula a cikin abin da ke canza. Saboda haka, muhimman induktif transducer ke amfani da wata daga cikin prinsipin da ke gudanar da ita.
Canza self inductance
Canza mutual inductance
Gargajiya eddy current
Yana da kyau a tafi da koyarren prinsipi daga baya.
Canza Self Inductance na Muhimman Induktif Transducer
A nan a sanu da cewa self inductance na coil yana nuna da
Da kuma
N = adadin turns.
R = reluctance na magnetic circuit.
Kuma a nan a sanu da cewa reluctance R yana nuna da
Da kuma, μ = effective permeability na medium a cikin da kuma har da coil.
Da kuma,
G = A/l and called the geometric form factor.
A = area of cross-section na coil.
l = length na coil.
Saboda haka, muna iya canza self inductance da
Canza adadin turns, N,
Canza geometric configuration, G,
Canza permeability
Don sake fahimta, a nan a lura da cewa idan tushen da za a kula a cikin muhimman induktif transducer, yana buƙata canza wata daga cikin parametarin da ke gudanar da ita don canza self inductance.
Canza Mutual Inductance na Muhimman Induktif Transducer
A nan transducers, wadanda suka yi aiki da canza mutual inductance, suke amfani da coils da dama. A nan a amfani da biyu na coils don sake fahimta. Duka biyu na coils suna da self-inductance da su. Saboda haka, za a kula self-inductance biyu na L1 da L2.
Mutual inductance daga biyu na coils yana nuna da
Saboda haka, mutual inductance zai iya canza da canza self inductance ko da canza coefficient of coupling, K. Wasu yanayin canza self inductance ta sanu a bayyana. A nan coefficient of coupling yana gudanar da distance da orientation daga biyu na coils. Saboda haka, don sake kula tushen, muna iya ci ɗaya daga biyu na coils da kuma ɗaya da za a kawo da source da tushensa da za a kula. Daga canza distance da tushen, coefficient of coupling zai canza, da kuma yana buƙata canza mutual inductance. Canzan mutual inductance da ke canza zai iya kula a cikin tushen, da kuma kula a yi da ita.
Gargajiya Eddy Current na Muhimman Induktif Transducer
A nan a sanu da cewa idan plate na conducting a kara ne a cikin coil carrying alternating current, circulating current zai canza a cikin plate wanda ake kira “EDDY CURRENT”. Prinsipin da ake amfani a kowane wata na inductive transducers. Me ya faru? Idan coil a kara ne a cikin coil carrying alternating current, circulating current zai canza a cikin ita wanda yake buƙata flux na ita wanda yake ɗaukarsa flux na coil carrying current, da kuma inductance na coil zai canza. Duk da plate na da a cikin coil, eddy current zai ƙarfin da ita, da kuma ƙarfin da ita zai ɗaukarsa inductance, da kuma vice versa. Saboda haka, inductance na coil zai canza da canza distance daga coil da plate. Saboda haka, movement na plate zai iya kula a cikin inductance change don kula abin da ke canza misali tushen.
Amfani na Muhimman Induktif Transducer a Cikin Jami'a
Muhimman induktif transducers suna da amfani a cikin proximity sensors wadanda ake amfani don kula tushen, dynamic motion measurement, touch pads, kamar haka. Yanzu inductive transducer ake amfani don kula nau'in metal, kula abubuwa da suka fito ko kula adadin abubuwa.
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