Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1975-09-30
1976-10-05
Corcoran, Robert J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
360 31, G01R 3312
Patent
active
039847632
ABSTRACT:
The invention concerns a device for the non-destructive measurement of the remanent flux density of magnetic recording media, by recording a specific signal and reproducing the recorded signal by means of two pairs of magnetic recording and playback heads arranged opposite one another and perpendicular to the plane of the recording medium, the ratio of the distance between the individual magnetic heads of each pair of heads to the wavelength of the recorded signal being within a specific range, and the said distance being such that a magnetic recording medium is movable symmetrically between the pair of heads, a common measuring unit being associated with the playback pair. Further features of the device relate to the design of the magnetic recording and playback heads, the measuring unit and the rate at which the particular magnetic recording medium being tested moves between the pairs of heads.
REFERENCES:
patent: 2922106 (1960-01-01), Oates et al.
Deigner Paul
Falk Roland
Huber Georg
Koester Eberhard
Uhl Karl
BASF - Aktiengesellschaft
Corcoran Robert J.
LandOfFree
Device for the non-destructive measurement of the remanent flux does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for the non-destructive measurement of the remanent flux , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for the non-destructive measurement of the remanent flux will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-657969