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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. |
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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.
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Specifications
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Frequency Range
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10 - 40 kHz
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Depth Range
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100 m
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Temperature Range
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5 - 45°C
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Transmitter
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Programable Sequence of Pulses:
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5 pulse types, max. 99 pulses of
each type.
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Time interval between subsequent
pulses:
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0.1 - 0.35 s, pseudo-random
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Peak Power:
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150 W
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Dimensions:
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length: 1750 mm
diameter: 52 mm
mass: 11.5
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Receiver
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Number of Channels:
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8
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Down-Hole Preamplifier Gain:
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Programmable in 8 steps
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Frequency Band:
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100 kHz
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Dimensions:
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length: 1850 mm
diameter: 52 mm
mass: 10.5 kg
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