Dynamic pyrotechnical penetrometer
US5591902A · kind A · utility
Inventor
Key dates
| Filing date | Mar 27, 1995 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Mar 27, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The dynamic pyrotechnical penetrometer enables to determine the features of the soils by continuous detection and measurement of penetration of a probe rod (1) using the pressure created by a pyrotechnical gas generator (5). A standard probe rod (1) mounted on a piston (2) is placed in an amagnetic tube equipped with solenoids. This probe rod accommodates a magnet (3) on the one hand and a recoiling mass (4) on the other, which balances the amount of movement of the rod created by the gases of a pyrotechnical generator (5) contained in this recoiling mass. A unit for acquiring and processing the movement of the standard rod enables to calculate the resistance of the soil to the penetration of the rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.