LONG-PERIOD SEISMOGRAPH DEVELOPMENT

reportActive / Technical Report | Accession Number: AD0803203 | Open PDF

Abstract:

Equipment was designed and constructed to perform a thermal noise experiment. The objective of the experiment was to experimentally investigate the spectral distribution of noise energy in seismometers and galvanometers and their interconnections. The equipment used in the experiment is described. A long-period triaxial borehole seismometer was designed. The design has preserved ideal La Coste geometry in that changes in period are accomplished through a controlled positive restoring force rather than through alteration of the geometry. Also, temperature compensation is designed to preserve the geometry. The seismometer is designed such that it will withstand shipping and installation acceleration while completely assembled.

Author(s):
Shappee, Richard M. ; Kirkpatrick, Burnard M. ; Trott, Wayne
Author Organization(s):
GEOTECH GARLAND TX
Descriptive Note:
Quarterly rept. no. 1, 1 Jul-30 Sep 1966
Supplementary Note:
DOI: 10.21236/AD0803203
Pagination:
0045

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR-66-94
Contract/Grant Number(s):
AF 33(657)-16406, ARPA ORDER-624
Project Number(s):
VELA-T/6706
Monitor Series:
DARPA
 Subject Terms
Joint Capability Areas:
JCA_4.6_Engineering; JCA_4.6.1_General Engineering; JCA_1_Force Support; JCA_5_Command and Control; JCA_1.1_Force Management; JCA_5.5.2_Task; JCA_5.5_Direct; JCA_1.2.7_Experimentation; JCA_6_Net Centric; JCA_6.1.1_Wired Transmission; JCA_6.1.3_Switching and Routing; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_6.1_Information Transport; JCA_5.3_Planning; JCA_1.3_Human Capital Management; JCA_6.3.3_Spectrum Management; JCA_6.4.1_Secure Information Exchange; JCA_1.2_Force Preparation; JCA_1.3.2_Personnel Management
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*SEISMOMETERS, DETECTION, GALVANOMETERS, NOISE, NUCLEAR EXPLOSIONS, OPTICAL EQUIPMENT, SPECIFICATIONS, TEMPERATURE, UNDERGROUND EXPLOSIONS
Field(s)/Group(s):
Seismology, Test Facilities, Equipment and Methods
Keyword(s):
THERMAL NOISE, VELA UNIFORM
Report Date:
1966 Oct 25