Geological survey20230403

Resource development20230403

McSEIS-PS & Borehole Pick

The McSEIS-PS is designed mainly for the measurement of downhole PS well logging in combination with a Borehole Pick (Model-3315). When used with our special programs, it is possible to carry out its data analysis easily on a commercial laptop PC.

The Borehole Pick is used to measure the P wave and S wave velocities of the ground. It contains a 3-component geophone in which one component is for vertical and two components are for horizontal direction, and can be used even in a relatively small borehole (e.g. φ 56 mm) because of its compact design.

McSEIS-PS & Borehole Pick


  • Compact, lightweight and low-power consumption design
  • Splash-proof case
  • McSEIS-PS can be used as an 8ch seismograph as well
  • Its control software can be used on a commercial laptop computer (Windows : Ethernet is required)
  • Special program, SeisImager / DH, is available for the analysis of data



Number of channels 8ch
Number of input 3ch input (Hx, Hy, Vz) by OYO Borehole Pick or max. 8ch input by standard seismic take-out cable
Input Impedance 20kΩ, 0.02μF
Preamp Gain 24dB or 36dB
Bandwidth 1.75Hz - 20KHz
A / D Resolution 24bits
Sampling Interval 0.0625, 0.125, 0.25, 0.5, 1.0, 2.0 msec
Data Format SEG2
Power Requirement 12VDC (external battery)
Operating Temperature -30 to +70˚C
Dimensions (W) 254 x (D) 305 x (H) 177mm
Weight 3.6kg

Borehole Pick

Vertical & Horizontal geophone Natural frequency 28Hz
Sensivity 104mV / cm / s
Impedance 215Ω
Operating temperature 0 - 40˚C
Material (Mainflame & Weight) SUS 304
Dimentions Length (Total length) 303mm
Outer dia. 43mm
Weight (Total) 14kg (100m Cable 12kg + Mainframe 2kg)


Inquiry for OYO product, please contact your distributor in your country from below.