The sledge hammer is used to generate seismic waves (P- or S-waves) at the surface. A piezotrigger element is attached to the hammer. The output piezo signal is transformed to a TTL pulse by a small box to provide an exact time break to the seismograph.
It is a suitable source for shallow downhole surveys up to a depth of 100 m.
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Length: |
1000 mm |
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Weight: |
5 kg |
The Landstreamer LS-24 is used to record P-, S- or surface waves. It consists of a number of horizontally or vertically oriented sensors mounted on sledges which are attached to a robust belt. The belt can be hooked to a vehicle and moved along the profile. A landstreamer is used to collect a large volume of seismic data in a short time. The landstreamer is suitable for MASW or reflection seismic applications especially on paved ground.
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Design: |
Geosym GmbH |
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Natural sensor frequency: |
Geophones: 10 Hz (others on request) |
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Accelerometers: flat from 0.2 Hz to 8000 Hz |
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Sensor arrangement: |
Vertical or horizontal |
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Sensor spacing: |
1 m (others on request) |