Patent application number | Description | Published |
20120222487 | OPTIC FIBRES AND FIBRE OPTIC SENSING - Fibre optic cables with improved performance for use in distributed sensing, for instance in distributed acoustic sensors, are disclosed. In one embodiment a fibre optic cable ( | 09-06-2012 |
20120226452 | Improvements in Distributed Fibre Optic Sensing - Techniques for determining lateral offset of the source of an acoustic disturbance in a distributed acoustic fibre optic sensor are described. The sensor comprises an optical source ( | 09-06-2012 |
20120230628 | Distributed Fibre Optic Sensing - The invention relates to a distributed fibre optic sensor ( | 09-13-2012 |
20120230629 | Fibre Optic Distributed Sensing - A method of distributed fibre optic sensing is described in which an optical fibre ( | 09-13-2012 |
20130139600 | Gunfire Detection - An apparatus and method for detecting gunfire is provided which uses distributed acoustic sensing to provide the gunfire detection. The method comprises interrogating an optical fibre with electromagnetic radiation to provide a distributed acoustic sensor comprising a plurality of sensing portions of the optical fibre, and analysing a measurement signal from said sensing portions to detect gunfire events. A gunfire event will typically be relatively intense but of short duration and affect multiple sensing channels. The method may detect a characteristic | 06-06-2013 |
20130151203 | Detection of Moving Objects - A system for moving object ( | 06-13-2013 |
20130154632 | Magnetic Field Detector - There is provided a system ( | 06-20-2013 |
20130319121 | Distributed Acoustic Sensing - This application describes methods and apparatus for distributed acoustic sensing providing enhanced sensitivity for certain acoustic signals. The method uses a fibre optic distributed acoustic sensing (DAS) apparatus ( | 12-05-2013 |