method of determining the direction of true meridian

摘要

method of determining the direction of true meridian by finding of the dynamic balance of the sensitive element u043fu0440u0435u0446u0435u0441u0441u0438u043eu043du043du044bu0445 gyro u0442u0435u043eu0434u043eu043bu0438u0442u0430, measuring the current through the u0433u0438u0440u043eu0434u0432u0438u0433u0430u0442u0435u043bu044c, determining the zero item by passing electric current through u043du0435u0432u0440u0430u0449u0430u044eu0449u0438u0439u0441u044f u0433u0438u0440u043eu0434u0432u0438u0433u0430u0442u0435u043bu044c and accounting adjustments on the null point, exe u0438u0447u0430u044eu0449u0438u0439u0441u044f whatin order to improve the accuracy of determining the meridian u0433u0438u0440u043eu0442u0435u043eu0434u043eu043bu0438u0442u043eu043c with u043cu043du043eu0433u043eu0444u0430u0437u043du044bu043c u0433u0438u0440u043eu0434u0432u0438u0433u0430u0442u0435u043bu0435u043c, measuring current produced in each of the phase windings u0433u0438u0440u043eu0434u0432u0438u0433u0430u0442u0435 la define null points by passing through each pair of phase windings u0433u0438u0440u043eu0434u0432u0438u0433u0430u0442u0435u043bu044f notion of current value which is equal to u0441u0440u0435u0434u043du0435u0430u0440u0438u0444u043cu0435u0442u0438u0447u0435u0441u043au043eu043cu0443 z u043du0430u0447u0435u043du0438u044e currents measured in the phase u043eu0431u043cu043eu0442u043au0430u0445,and zero - point in u043eu0431u0435u0441u0442u043eu0447u0435u043du043du043eu043c u043du0435u0432u0440u0430u0449u0430u044eu0449u0435u043cu0441u044f u0433u0438u0440u043eu0434u0432u0438u0433u0430u0442u0435u043bu0435 and amendment on the zero - point u0433u0438u0440u043eu0442u0435u043eu0434u043eu043bu0438u0442u0430 compute on u0444u043eu0440u043cu0443u043bu0435u0433u0434u0435 c - u0448u0438u0440u043eu0442u043du044bu0439 coefficient u0433u0438u0440u043eu0442u0435u043eu0434u043eu043bu0438u0442u0430; k the number of phase windings u0433u0438u0440u043eu0434u0432u0438u0433u0430u0442u0435u043bu044f; the number of combinations of k 2; n is the value of the zero phase current by alternately passing the item with the notion of u043eu0431u043cu043eu0442u043au0430u043c u0433u0438u0440u043eu0434u0432u0438 u0433u0430u0442u0435u043bu044f; n is the same with the u043du0435u0432u0440u0430u0449u0430u044eu0449u0435u043cu0441u044f and u043eu0431u0435u0441u0442u043eu0447u0435u043du043du043eu043c u0433u0438u0440u043eu0434u0432u0438u0433u0430u0442u0435u043bu0435.