Accession Number:

AD0677009

Title:

DEVELOPMENT OF A THREE-AXIS LONG-PERIOD SEISMOGRAPH

Descriptive Note:

Annual rept.

Corporate Author:

LITTLE (ARTHUR D) INC CAMBRIDGE MA

Report Date:

1968-05-31

Pagination or Media Count:

88.0

Abstract:

Development of a three-component long-period borehole seismometer of small diameter 5-12 inches O.D. is described. The feasibility of the magnetic suspension principle has been demonstrated and several instruments were constructed and tested in the laboratory.

Subject Categories:

  • Seismology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE