Transducer/sensor nau'in na'urar ganowa ce, ita ce hanyar haɗin kai ta farko don gane

ganowa ta atomatik kumasarrafawa ta atomatik.

         Halayen firikwensin sun haɗa da: miniaturization, digitalization,

hankali, Multi-aiki, systematization da sadarwar. Yawancin lokaci

ya kasu kashi goma bisa ga ainihin aikinsa na ji, kamar

thermal element, photosensor, gas firikwensin, karfi firikwensin, Magnetic firikwensin,

firikwensin zafi, firikwensin sauti, firikwensin radiyo, firikwensin launi da firikwensin dandano.

Ana amfani da shi sosai a fannoni daban-daban kamar mota, masana'antu da amfani.

Na'urar firikwensin na iya jin bayanin da aka auna, kuma yana iya canza bayanan da aka ji

cikin siginar lantarki ko wani nau'i na fitowar bayanai bisa ga buƙatu

zuwa wata doka don biyan buƙatun watsa bayanai, sarrafawa,

ajiya, nuni, rikodi da sarrafawa.