Objectives: An efficient, safe, affordable and easily accessible measuring instrument for quantitative assessment of bone prior to dental implant placement enables more accurate treatment planning. Costly imaging modalities are neither widely available, nor affordable for some patients. This study sought to assess the efficacy of a newly designed digital bone gauge for measurement of bone width...

With today’s push for Six Sigma, the issue of measurement errors in quality assurance is now widely discussed and as a result naive to theoretically sophisticated suggestions have emerged. This has led to formulating Gauge R&R guidelines by AIAG and others for the recommended choice and use of gauges to measure product characteristics. This paper extends that effort, linking the overall power o...

We derive both Lagrangian and Hamiltonian mechanics as gauge theories of Newtonian mechanics. Systematic development of the distinct symmetries of dynamics and measurement suggest that gauge theory may be motivated as a reconciliation of dynamics with measurement. Applying this principle to Newton’s law with the simplest measurement theory leads to Lagrangian mechanics, while use of conformal m...

Waves from hurricanes Lili and Isidore were measured using an ADCP directional wave gauge and an independent pressure sensor. The array is part of Louisiana State University’s WAVCIS ocean observing system located in the northern Gulf of Mexico. Data demonstrate the effects of strong storm surge induced currents on wavenumber. We investigate the effect of Doppler shifting of wavenumber to wave ...

torque, speed, and power as mechanical variables are associated with the functional performance of any rotating machinery. the real-time performance and the efficiency of a machine can be determined with on-line measurement of these parameters. in this investigation a rotary torque meter (transducer) was constructed from strain gauge sensors for measuring the torque of rotating shafts. the syst...

Gauge blocks continue to be essential reference artifacts in manufacturing because of their simple geometry, but also because they can provide very high accuracy for a reasonable cost. The calibration technique of optical interferometry can directly link gauge block central length to the distance light travels in vacuum in 1/299792458 of a second, the definition of the International System of U...