| The purpose of this project has been to configure an optimal measurement system to enable real-time decision-making in earth penetrators. It includes analysis of the effects of transducer placement, anti-aliasing filter type and cutoff frequency, and signal conditioning amplifier location on the quality of the signal available for the decision process. It also addresses survivability of the measurement transducer and its associated signal conditioning components. Various earth penetrators have been modeled using elastic finite element methods, and their structural responses to predicted inputs have been calculated. These calculated structural responses have in turn been used as inputs to various measurement system models and the differences between measurement system output and penetrator structural loading have been assessed. The sensitivity of the modeled responses to sensor and anti-aliasing filter placement have been investigated. |
