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Current-carrying strips are a convenient means to produce a uniform field gradient for use in a Faraday magnetometer. An expression is derived for the magnetic field gradient, taking into account the images of the strips in the pole pieces. Tables are presented giving the magnitude and homogeneity of the gradient for various strip widths and locations. The performance in the laboratory of a set of strips is reported.
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R. Spal (1977) studied this question.
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