Correct sensing provides the availability of information for health monitoring interests, including those associated with unit health, stress, diagnostics and prognostics. Data is presented from measurement projects employing a 'highly linear,' wideband (0 to hundreds of kilohertz), large dynamic range (over 180 dB demonstrated in both displacement and acceleration), non-contact, vibration and Acoustic Emissions (AE) measurement capability. The measurement capability is currently embodied in an Epoch Engineering, Inc. Research and Development (R&D) Robust Laser Interferometer (RLI). Existing data from previous measurement projects is assessed in terms of its potential to provide meaningful information for health monitoring needs in situations involving civil, mechanical and aerospace infrastructure elements. In addition to performance considerations, implementation alternatives, integration benefits, cost considerations and remaining work that would need to be accomplished for commercializing the RLI capability is presented.