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The article presents the results of an experimenta measuring device resulting magnetic field of the stator winding of an asynchronous motor for general industrial use. The utility model relates to the field of electrical engineering and can be used in asynchronous motors for general industrial use. In the proposed device, a rectangular measuring frame with a diametrical pitch, with a length equal to one pole division of the machine, is located on the stator bore of an asynchronous motor for general industrial use. For oscilloscope resulting magnetic field of the stator winding, the output ends of the rectangular measuring frame are connected to the vibrator of the oscilloscope. [ABSTRACT FROM AUTHOR]