Borehold Deployment of Broadband Quartz Torsional Accelerometers
Abstract
The DIAX torsional accelerometers have been repackaged for borehole use. The basic sonde system is presently designed to operate at a pressure equivalent to a depth of 3000 feet of water. It should be noted that the DIAX accelerometers provide true broadband information which extends from zero frequency to several Hertz. This enables the following phenomena to be investigated with a single system at no additional cost: High frequency seismic signals (6 to 0.1 seconds period); Low frequency seismic signals (60 to 6 seconds period); Earth normal mode excitations (3600 to 60 seconds period); Tectonic phenomena at nearly zero frequency. The DIAX system is the only system with low noise, low drift and high sensitivity over this entire bandwidth. Operation at depth will allow isolation from surface noise sources yielding excellent quality data independent of local surface weather conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 30, 1972
- Accession Number
- AD0755852
Entities
People
- Barry Block
- Bruce Bartholomew
- Crispin Hollinshead
- Jay Dratler Jr.