Model:SBS 42
Use:borehole source SBS42 generates compressional waves (P) in water lled boreholes and is used for P-wave tomography.
Sparker pulses are released through manual
or automatic triggering of the impulse generator (IPG5000) controlled by the
remote control unit (RCU). e RCU converts the reference signal of the impulse
generator to an accurate time break with an accuracy of a few microseconds.
To estimate the source repeatability the
calculation of the coherency spectra is used. Coherency values of ?1“ indicate
perfect repeatability whereas a coherency of ?0“ expresses no repeatability. e
test shows that the P-wave sparker source SBS42 is highly repeatable up to
frequencies of 4-5 kHz.