FIELD: geophysical studies. SUBSTANCE: vibrator includes case, unbalance vibration exciter, fingured bushing and drive with lead screw. Rod sealed with ring sealings over cylindrical surface of contact with case having internal hole and thread is jointed to lead screw. Middle of rod has supports brought out through longitudinal grooves of case. They carry tabs of fingured bushing joined to clamping wedges. Ratio of length and cross-section of tabs of fingured bushing is chosen by criterion of longitudinal stability for norming of pressing effort. Unbalance of vibrator is manufactured in the form of sector of cylinder filled with heavy fluid, for example, mercury. EFFECT: expanded application field. 2 cl, 1 dwg
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