Magnetometer with a miniature transducer and automatic scanning

The magnetometer transducer includes a group of plated magnetic wires arranged in parallel physically and connected in series electrically to serve as a drive circuit, and several turns of 0.025 mm diameter wire wound around the group of plated magnetic wires to serve as a sense coil. Each of the ma...

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Bibliographic Details
Main Authors FLETCHER; JAMES C. ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION, WITH RESPECT TO AN INVENTION OF, FALES, JR.; CARL L, POHM; ARTHUR V, DEBNAM, JR.; WILLIAM J, BRECKENRIDGE; ROGER A
Format Patent
LanguageEnglish
Published 09.05.1978
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The magnetometer transducer includes a group of plated magnetic wires arranged in parallel physically and connected in series electrically to serve as a drive circuit, and several turns of 0.025 mm diameter wire wound around the group of plated magnetic wires to serve as a sense coil. Each of the magnetic wires has a diameter of 0.05 mm with their centers being 0.25 mm apart. Because of its shape and small size, it is capable of very good spatial resolution of magnetic fields as low as 0.02 oe and it can make measurements of transverse magnetic fields as close as 0.08 mm from a surface. The magnetometer utilizes two X-Y recorders in a unique transducer scanning technique. One of the recorders moves the transducer over the specimen being measured and the other recorder records the measurements.
Bibliography:Application Number: US19760668771