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Guest dvd92

amplificator pentru teslametru hall ajutor...

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Guest dvd92

Am facut un teslametru hall saptamana asta si as vrea sa ii pun un amplificator ca sa pot sa masor campuri magnetice putin mai slabe.

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Cat de slabe sunt aceste campuri care vrei sa le masori?Uzual lucrez cu diverse sisteme de achizitie de date care masoara acelasi lucru, si anume campul magnetic al Pamantului (~47microTesla), dar aparatura e complicata si nu cred ca poate fi reprodusa in regim de amator (nici ca profesionist)Pot spune ca sistemele de masura si achizitie sunt bazate pe senzori magnetici pe cele 3 axe ale pamantului si sistemele sunt produse de Bartington, Metronix, National Instruments, Scintrex, si altii.

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Magnetometrele folosite in masuratori de camp terestru au la baza senzori geomagnetici de genul celor de la Honeywell (1,2,3 axe). Am folosit astfel de senzori in detectoare de semnatura magnetica pentru autovehicule.Detalii pe PMRegards

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