IRAD vibrating wire stressmeter baseline algorithm

This document provides the baseline algorithm for the IRAD Vibrating Stressmeters (IRAD Gages) used at the Near-Surface Test Facility (NSTF) as a part of the Rock Instrumentation System (RIS) for Full Scale Heater Tests (FS) number-sign 1 and number-sign 2. It represents the baseline information available at the time of publication. The purpose of this document is to state the algorithm to be used for the IRAD gage at the NSTF, the basis for the equation, the method used to arrive at the constants in the equation, and to identify further instrument testing necessary to improve the understanding of the instrument's response to this high temperature, hard rock environment. 2 refs