FIELD: mining hole measurements. SUBSTANCE: method involves application of static magnetic field with known characteristics to given region of mining hole, application of high-frequency field which frequency, duration and intensity are given, and storage of single echo signal. First claim of invention describes method in which application of high-frequency field is preceded by application of fixed gradient of magnetic field. Another claim of invention describes method in which high-frequency field is preceded with pulse gradient of magnetic field. Then diffusion rate is detected using recorded characteristics of echo signal. EFFECT: increased functional capabilities. 15 cl, 6 dwg
