The PS-8R High Resolution Seismic System for Boreholes

The PS8R consists of a source and an 8-transducer receiver probe, which can be placed in the same or in different holes.

The PS-8R can be used for reflection and tomographic studies. Both dry and water-filled holes, of arbitrary inclinations, can be used. The units clamp hydraulically to holes with diameters of 56-100 mm.

The source generates time-coded pulse sequences, which are summed to produce high dynamic broad band records.

The PS-8R is intended for investigations of mine pillars, bridge piles and tunnel walls. The PS-8R is capable of imaging single fractures at a distance of 10-20m, by emitting and recording frequencies of up to 60 kHz.

Frequency Range

10 - 40 kHz

Depth Range

100 m

Temperature Range

5 - 45°C

Programable Sequence of Pulses:

5 pulse types, max. 99 pulses of each type.

Time interval between subsequent pulses:

0.1 - 0.35 s, pseudo-random

Peak Power:

150 W

Dimensions:

length: 1750 mm
diameter: 52 mm
mass: 11.5

Number of Channels:

8

Down-Hole Preamplifier Gain:

Programmable in 8 steps

Frequency Band:

100 kHz

Dimensions:

length: 1850 mm
diameter: 52 mm
mass: 10.5 kg