Detector Reluctance Geophone

From SEG Wiki
Jump to navigation Jump to search
Item Detector Reluctance Geophone
Item code
Manufacturer Rufus H. Hooks
Donor Sun Oil
Location Houston Geoscience Center
Serial number
Taxonomy GSH122

SEISMOGRAPH DETECTOR. Designed and manufactured by Rufus H. Hooks or Hooks Exploration Co. in 1934 for use in refraction surveys. It is of the inductive type and connected to amplifier in the recording truck by transformer located in detector case. The electromagnet is energized by a 90 volt battery located in the recording truck. Damping is both magnetic and fluid. The un-damped period of the suspended mass is plus or minus 3 cycles per second. Mass is balanced for vertical movement. Handle to release mass on top of case. Total weight 23 Pounds.