Desenvolvimento e simulação numérica de eletrorresistivímetro multieletrodo de baixo custo

Abstract

The electroresistivmeter is one of the most used equipment in geophysical studies and its purpose is to measure geoelectrical properties, through a quadrupole system. Usually, it has a wide variety of applications such as environmental monitoring, geotechnical monitoring, hydrogeology studies, among others. Its applicability increases linearly with the evolution of instrument technology. However, this relationship has a great impact on the economic value of the equipment for the end user, making the use of commercial electroresistivmeters unfeasible in some projects, especially when related to continuous or permanent monitoring. In this way, this work presents the numerical prototyping of an electroresistivmeter in a multi-electrode and low cost version, approaching the stages of circuit modeling and simulation, projection and validation of the prototype and the list of materials necessary for the physical development of the equipment. For the numerical simulation step, the circuit modeling and simulation software Proteus Design Suite© was used, developed by the company Labcenter Electronics Ltd. The methodology implemented was in accordance with the analysis of commercial equipment manuals available and the bibliographic review of prototyping. of existing electrical resistance meters. Finally, the validation test of the designed prototype showed that it is satisfactorily calibrated and consequently validated.