Mcdermott Technology, Inc.

Jayne Marie Grut

Wayne M Latham

Jimmy W Hancock

A method of electromagnetically measuring the distance between adjacent tube elements in a heat exchanger. A cylindrical, high magnetic permeability ferrite slug is placed in the tube adjacent the spacing to be measured. A bobbin or annular coil type probe operated in the absolute mode is inserted into a second tube adjacent the spacing to be measured. From prior calibrations on the response of the eddy current coil, the signals from the coil, when sensing the presence of the ferrite slug, are used to determine the spacing between the tubes.

Growing community of inventors

Madison Heights, VA, United States of America

Jayne Marie Grut