Development of an automated bench top electronic penetrometer

Engenharia Agrícola

Aloísio Bianchini²  Márcio W. Roque¹  Rodrigo P. Rosa¹ 

[1] ,Universidade Federal de Mato Grosso Departamento de Solos e Engenharia Rural

关键词: soil compaction;    soil resistance to penetration;    velocity test;    cone index;    compactação de solo;    RSP;    velocidade de ensaio;    índice de cone;   

DOI  :  10.1590/S0100-69162013000600012

来源: SciELO

【 摘 要 】

The aim of this study was to develop a an automated bench top electronic penetrometer (ABEP) that allows performing tests with high rate of data acquisition (up to 19,600 Hz) and with variation of the displacement velocity and of the base area of cone penetration. The mechanical components of the ABEP are: a supporting structure, stepper motor, velocity reducer, double nut ball screw and six penetration probes. The electronic components of ABEP are: a "driver" to control rotation and displacement, power supply, three load cells, two software programs for running and storing data, and a data acquisition module. This penetrometer presented in compact size, portable and in 32 validation tests it proved easy to operate, and showed high resolution, high velocity in reliability in data collection. During the validation tests the equipment met the objectives, because the test results showed that the ABEP could use different sizes of cones, allowed work at different velocities, showed for velocity and displacement, were only 1.3% and 0.7%, respectively, at the highest velocity (30 mm s-1) and 1% and 0.9%, respectively for the lowest velocity (0.1 mm s-1).

【 授权许可】

CC BY   
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