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Structural Health Monitoring (SHM) is a new and upcoming method of determining the integrity of structures. Sensor network based SHM systems have been developed and tested for monitoring of assets such as pipelines. In this paper, details on the system and monitoring aspects are presented along with potential applications and benefits for critical assets.
Inspection Repair and Maintenance (IRM) of Deepwater Oil and Gas infrastructure is currently limited to the capability provided by today's work class Remotely Operated Vehicles. A significant portion of ROV operations underutilize their work capabilities for routine tasks such as inspection, survey, and light intervention and yet still require large dynamically positioned surface vessels and large,...
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...
Dependability is an important system attribute for microfluidic lab-on-chip devices. On-line testing offers a promising method for detecting defects, fluidic abnormalities, and bioassay malfunctions during chip operation. However, previous techniques for reading test outcomes and analyzing pulse sequences are cumbersome, sensitive to the calibration of capacitive sensors, and error-prone. We present...
In this paper, we present a new technique to improve the reliability of H-tree SRAM memories. This technique deals with the SRAM power-bus monitoring by using built-in current sensor (BICS) circuits that detect abnormal current dissipation in the memory power-bus. This abnormal current is the result of a single-event upset (SEU) in the memory and it is generated during the inversion of the state of...
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