Abstract: A marker for remote localisation in a medium, the marker including a magnetic field sensor configured to measure three different magnetic fields at three different respective times in three dimensions at a marker location in the medium, wherein the marker is configured to generate measurement data representing the measured magnetic fields for determining the marker location.

Abstract: A process for vibration analysis, including the steps of: receiving synchronized motion measurements of particle motion in two or three orthogonal dimensions over a selected period of time at a plurality of different measurement locations; and determining one or more strain waveforms in the orthogonal dimensions in regions spanning the plurality of measurement locations using the motion measurements.

Abstract: A marker for remote localisation in a medium, the marker including a magnetic field sensor configured to measure three different magnetic fields at three different respective times in three dimensions at a marker location in the medium, wherein the marker is configured to generate measurement data representing the measured magnetic fields for determining the marker location.

Abstract: A method of mining a mineral deposit includes setting a plurality of explosive charges at spaced pre-blast locations in the deposit, wherein at least selected pre-blast locations also carry respective markers that are such that the post-blast location of at least a useful proportion will be detectable after explosion of the charges. After the charges are exploded to fragment the deposit, the post-blast locations of certain of the markers are detected to obtain an indication of the relative positions of selected components of the mineral deposit after the fragmentation of the deposit by the exploding of the charges. Also disclosed is a method utilizing a plurality of markers arranged to emit a detectable signal after blast fragmentation, and detecting the post-blast locations by triangulation techniques employing a plurality of receiver detectors. A further aspect proposes the use of secondary explosive charges as post-blast markers.

Abstract: A process for vibration analysis, including the steps of: receiving synchronized motion measurements of particle motion in two or three orthogonal dimensions over a selected period of time at a plurality of different measurement locations; and determining one or more strain waveforms in the orthogonal dimensions in regions spanning the plurality of measurement locations using the motion measurements.

Abstract: A method of mining a mineral deposit includes setting a plurality of explosive charges at spaced pre-blast locations in the deposit, wherein at least selected pre-blast locations also carry respective markers that are such that the post-blast location of at least a useful proportion will be detectable after explosion of the charges. After the charges are exploded to fragment the deposit, the post-blast locations of certain of the markers are detected to obtain an indication of the relative positions of selected components of the mineral deposit after the fragmentation of the deposit by the exploding of the charges. Also disclosed is a method utilizing a plurality of markers arranged to emit a detectable signal after blast fragmentation, and detecting the post-blast locations by triangulation techniques employing a plurality of receiver detectors. A further aspect proposes the use of secondary explosive charges as post-blast markers.

Abstract: A method of mining a mineral deposit includes setting a plurality of explosive charges at spaced pre-blast locations in the deposit, wherein at least selected pre-blast locations also carry respective markers that are such that the post-blast location of at least a useful proportion will be detectable after explosion of the charges. After the charges are exploded to fragment the deposit, the post-blast locations of certain of the markers are detected to obtain an indication of the relative positions of selected components of the mineral deposit after the fragmentation of the deposit by the exploding of the charges. Also disclosed is a method utilising a plurality of markers arranged to emit a detectable signal after blast fragmentation, and detecting the post-blast locations by triangulation techniques employing a plurality of receiver detectors. A further aspect proposes the use of secondary explosive charges as post-blast markers.