A flux-sensitive reproducing head for magnetic recording systems

A description is given of a new type of flux-sensitive reproducing head for use on magnetic tape or drum recording systems. The head is compact and relatively simple in operation and differs from conventional reproducing heads in that its efficiency is fundamentally independent of signal frequency over the working range and is completely independent of the speed of the recording medium on reproduction. It can, in fact, be used to make measurements of recorded flux at points along the length of a stationary recorded medium. The head may be of value in certain specialized applications of magnetic recording technique, such as those dealing with very-low-frequency signals or the examination of transient phenomena.