Optical fiber sensor system for electric field environments

Details Optical fiber sensor system for electric field environments Optical fiber sensor system for electric field environments

A - Human Necessities

61

B

A61B 5/055 (2006.01)

Patent

CA 2230662

In electromagnetic fields, such as are found in magnetic resonance imaging devices, the metal conductors and components used in most switches cannot be used because of their interaction with the field. In functional magnetic resonance imaging where the subject is expected to respond to, or initiate certain actions, that would commonly be recorded or initiated by activating a hand-switch or keypad, there has gone unmet a need for a low-cost switching device without conductive metal parts to perform these functions. A non-ferrous fiber optic switch is proposed to perform this function

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