Model:SBS 42
Use:borehole source SBS42 generates compressional waves (P) in water lled boreholes and is used for P-wave tomography.
Standard:《公路工程物探规程》JTG/T C22-2009 《水电水利工程物探规程》DL/T 5010-2005 《电力工程物探技术规程》DL/T 5159-2012
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.