Sampling and analog recording with square-loop magnetic devices

Square-loop magnetic devices have been used traditionally in digital circuitry. Methods by which a combination of the square-loop and time-limited switching properties of magnetic devices can be used to sample and record a transient signal are described. These circuit functions have been previously performed by rather complicated electronic means. Magnetic sampling and recording has several advantages over previously used methods: 1) circuitry is simple; 2) magnetic elements are less sensitive to some types of environmental conditions; 3) the recording and sampling is performed in a single device; 4) sampling duration can be made short enough to obtain high-frequency response; and 5) an extremely wide variety of recording problems can be solved with these devices.