Salient Features These single component geophones are available as vertical units for use with the Texan digitizer and as vertical 6-channel strings for use with the multi-channel digitizer systems.  The multi-channel strings are rarely used. This single channel vertical geophone has a frequency of 4.5Hz, damping of .707 critical and a sensitivity of 100 V/m/s. The primary use of these geophones is for active source experiments. Manufacturer Documents: PASSCAL’s 4.5Hz, vertical geophones were manufactured by Geospace under part number GS-11D. Installation & Troubleshooting:

 Installation requires a separate bubble level to be placed on top of the geophone for proper leveling.

  Channel Type Number of Takeouts Takeout Spacing Total Cable Length Inter Connectable Geode 24ch Single/3-Component 24

PH5, clearly a better choice as an archival data format.

 

Principal Investigator: _________________________

 

Experiment: ________________

 

Portable field recording equipment, field computers and other associated equipment purchased by the PASSCAL Program are being made available to the experiment referenced above. In return for the use of this equipment, the Principal Investigator (PI) is expected to adhere to the following conditions with respect to the operation, care and disposition of the equipment and data obtained:

1. Copies of all data sets acquired with the instruments will be made available to the IRIS Data Management Center in accordance with the PASSCAL Data Delivery Policy.