Commercial-off-the-shelf Microelectromechanical Systems

Robust and Inexpensive 6-Axis Force-Torque Sensors using MEMS Barometers

Current commercial force-torque sensors are sensitive and accurate, but are also typically expensive and fragile. These features limit their use in cost-sensitive applications and unstructured environments such as people’s homes. This paper presents a new design for an inexpensive and robust force-torque sensor that uses MEMS barometer transducers. The new design results in a six-axis force-tor...

The Effect of Material Properties on Sensitivity of the Microelectromechanical Systems Piezoelectric Hydrophone

In this paper, we present mathematical analyses to consider the effect of material properties on the sensitivity of the Microelectromechanical systems (MEMS) piezoelectric hydrophone and improve the sensitivity by choosing the proper material. The selected structure in the present paper is a piezoelectric hydrophone able to work at low frequencies. The piezoelectric hydrophones are widely used ...

Safety Assurance of Commercial-Off-The-Shelf Software

Commercial-Off-The-Shelf (COTS) software is increasingly being suggested for use in systems development, for reasons including cost, functionality, useability, testedness, availability of support and upgrades. At the same time, standards for use of software in safetyrelated systems are becoming increasingly stringent. This paper examines the issue of providing safety assurance for systems invol...

Quality Specification, Testing and Certification of Bespoken, Open Source and Commercial Off-The-Shelf Systems

Commercial-Off-The-Shelf (COTS) Systems, Architecture and Knowledge

Large or specialised software systems-of-systems are now mostly composed of Commercial-Off-The-Shelf (COTS) software packages. In mainstream application areas, such as office automation, this approach has proved satisfactory once the teething problems have been overcome. Defence and Research have also followed this trend in a desire to cut costs and take advantage of the functionality of commer...