Showing papers on "Inductive sensor published in 1972"

Inductive sensor for magnetic bubble domain detection

Abstract: A sensor for detection of magnetic bubble domains in which the domains are oscillated in size to cause a change in a detector coupled to the domains. In one embodiment, the oscillator is a conductor loop driven by an electrical source to oscillate a domain therein, and the detector is a circuit connected to the conductor loop and responsive to the change in self-inductance of the loop, due to a difference in the amount of magnetic flux coupling the loop as the domain oscillates. Another embodiment uses the change in capacitance between conducting plates as an indication of the presence of a domain. Still another embodiment uses the change in amount of light passing through an oscillating domain as an indication of the presence of a domain.