INSTRUMENTATION FOR SOIL MOTION STUDIES.
Technical rept. Jan 66-Sep 67,
AIR FORCE SPECIAL WEAPONS CENTER KIRTLAND AFB N MEX
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The present instrumentation being used by AFSWC in High Explosive Simulation Technique HEST tests is presented in this report. Outlines of some of the current developments in soil motion transducers are also included. This instrumentation is used to gather the data needed to analyze soil motion characteristics from an air-induced shock generated by a simulated nuclear blast. The physical quantities measured by this instrumentation include pressure, acceleration, velocity, displacement, soil strain, soil stress, and shock wave velocity. The instrumentation discussed in this report is mainly an adaptation of standard configurations and techniques to meet the requirement of gathering data under a severe HEST environment. This adaptation is required because the input shock generated in a HEST test is of a transient nature and of high-amplitude levels therefore, the shock presents unique problems in instrumentation. Aspects cover the instrumentation needed to gather data from a HEST test, including the transducers, the transmission lines, the signal conditioning, and calibrate systems, and the recording and reproducing systems. Author
- Soil Mechanics