Abstract: The invention relates to a system for using a device for picking up samples in a soil or a material with a granular/powdery nature, said device comprising a vertical stem provided with a groove for collecting the picked-up sample, on the edge of which a lip is formed for scraping the soil or the material to be picked up. A power-driven system is provided for moving the picking-up device down into the soil/material to be picked up, guiding during this downward movement being provided by vertical guiding means of the picking-up device. A power-driven system is also provided for rotating the picking-up device in the soil/material to be picked up, in order to allow scraping of the soil or material to be picked up by the scraping lip, the upward movement and the collection of the scraped soil/material in the groove of the picking-up device.

Abstract: The device for sampling material of granular or powdery composition includes a stem at one end of which a wheel is mounted intended to cause the device to rotate. At the opposite end is a driving head. The head is mounted symmetrically on the stem and includes lower and side parts of a streamlined shape. The stem has a predetermined shape to scrape material nover the entire driving depth of the device in the material to be sampled. The head has a cross section that is smaller than, equal to, or greater than the cross section of the stem and in proportions determined in relation to the nature or moisture content of the material to be sampled.