Pore-air pressure measurement device for use in high shock envir

Details Pore-air pressure measurement device for use in high shock envir Pore-air pressure measurement device for use in high shock envir

1995-05-16

1997-03-25

Chapman, John E.

Measuring and testing

Explosive

Electric sensor

73706, 73784, G01L 1914

Patent

active

056146590

ABSTRACT:
A device for measuring soil pore-air pressure in a high shock environment characterized by a shock resistant housing containing a plurality of pressure sensing ports with sintered metal filters mounted therein which filter fine soil particles, withstand high pressure shock, and permit high air flow. When the device is installed in the ground and an explosive is detonated nearby, soil particles are filtered from the air blast by the sintered metal filters, thereby enabling the device to provide accurate pore-air pressure measurements.

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