Accelerometer simulation for biologically inspired applications

Of the sensors that quantify motion, accelerometers are commonly available at low cost due to their widespread use. Whether embedded in other products or used by itself, it is used to measure movements across a wide range of intensities and frequencies but for normal biological applications, the range of physical movements is not vigorous. Proper use of accelerometers requires understanding of their operating principles together with their imperfections and confounding effects. All the more, since unlike involuntary movements like tremors most biological movements are voluntary and directed by the biological neuromuscular system need visual and/or biological sensory feedback for proper execution of movements. For bio-inspired motion, the choices of sensors are more limited, constrained by current technologies and cost so that optimal deployment of accelerometers, being able to simulate their operation has several benefits which are discussed. To motivate our approach we look at bio-inspired rehabilitation, to focus on a common task in which is to establish what is normative or ideal motion which is synthesized so that comparisons can be made about the patient's current condition by analysis.