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024 7 $a10.1109/IEEESTD.1972.7409897
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101 0 $aeng
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181   $ctxt$2rdacontent
182   $cc$2rdamedia
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200 10$aIEEE Std 347-1972 (ANSI S4.6-1973) $eIEEE standard method of measuring recorded flux of magnetic sound records at medium wavelengths /$fInstitute of Electrical and Electronics Engineers
210  1$aPiscataway, New Jersey :$cIEEE,$d1972.
215   $a1 online resource (8 pages)
330   $aThe knowledge of the recorded signal amplitude on a magnetic record (which may be in the form of a tape, a disc, o? a perforated film) has several practical uses: (1) for determining and standardizing references for the levels of audio programs on these magnetic records; (2) for specifying the recording-performance properties of magnetic media (for example, the distortion versus flux, etc); and (3) for measuring and specifying the sensitivity of reproducing heads (and also, by reciprocity, recording heads). The quantity for specifying the recorded signal is the short-circuit magnetic flux, sometimes simply shortened to flux. Several possible methods exist for measuring tape flux, but the measurement given here involves only the use of a calibrated ring-core head which is described in the reference of the standard. Note that the present standard measurement is only for "medium wavelengths".
517   $aIEEE Std 347-1972 
606   $aMagnetic recorders and recording
606   $aMagnetic tapes
606   $aSound$xRecording and reproducing
615  0$aMagnetic recorders and recording.
615  0$aMagnetic tapes.
615  0$aSound$xRecording and reproducing.
676   $a621.38932
801  0$bNjHacI
801  1$bNjHacl
906   $aDOCUMENT
912   $a9910136267603321
996   $aIEEE Std 347-1972 (ANSI S4.6-1973)$93646415
997   $aUNINA