RD-XYZH, 4-components digital down-hole receivers

The RD-XYZH is a borehole hammer for inverse VSP and cross-hole seismic surveys. The seismic signals are conveyed to ground by means of clamping wedges. The hammer is designed as motor-driven accelerated weight drop. The model is equipped with electric motors and trigger sensor.

Key features

  • Very low noise by 24-bit Delta-Sigma A/D conversion performed inches from the sensors
  • Full digital dynamic of extremely low-level signals by 12-step gain preamplifiers individually programmable for each channel
  • 4-sensors/level. The 4th sensor can be a hydrophone, a low-frequency geophone, or additional independent Z-axis geophone
  • Expandable to more than 600 level configuration
  • Interfaces with Vibrators, VIBSIST, weight-drop and explosive sources


  • Oil and gas exploration
  • Reservoir characterization
  • Mineral exploration
  • Resource delineation
  • Hazardous waste geologic disposal
  • Hydrogeological assessment
  • Rock mechanical studies
  • Research and education