Studies on the Measuring System of a Soil-Tillage Tool Interaction (Part 1)

Measurent of soil stresses and displacements under pressure

Abstract

In an attempt to get data for analyzing a soil-tillage tool interaction, this paper describes development and validation of the measuring system mainly consisted of the miniature soil stress/soil displacement sensor and the soil bin with soil processing equipments. This sensor was consisted of attached subminiature pressure gages to detect soil stresses and light sources transmitted by optical fibers which blink through the front glass wall of the soil bin that was used to search soil displacements by image processing. Distributions of soil stresses and strains under pressure can be estimated with several couples of these sensors, and the soil at a certain condition can be prepared in this soil bin with processing equipments.