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The paper reports on contributions and limitations towards the long-term deployment of in-water sensors, on commercial tidal stream turbines, for monitoring of turbine condition and performance. It is recognised that specific site and ever time varying flow conditions pose monitoring challenges. For all turbine and/or blade deteriorations, fault diagnosis and prognostics are vital elements to secure...
The objective of this work is the design and development of the data acquisition and storage parts of a monitoring system that will be used for a certain control and guide equipment. The data captured and stored in a database will be an application that will diagnose failure of control and guide equipment. Data acquisition and data store were developed using finite-state machine model and virtual...
This paper deals with the testing of instrumentation loops (ILs) in gas turbines during scheduled maintenance. To both guarantee safe operation and save costs on periodical changing of cables, an innovative measurement device that monitors the status of the IL and indicates whether a replacement is necessary, has been developed. The goal of the research described in this paper is twofold: First, the...
In this paper we present a low cost fault-tolerant attitude determination system to a scientific satellite using COTS devices. We related our experience in developing the attitude determination system, where we combine proven fault tolerance techniques to protect the whole system composed only by COTS from the effects produced by transient faults. We detailed the failure cases and the detection, reconfiguration...
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