{"id":4865,"date":"2023-07-04T14:36:39","date_gmt":"2023-07-04T14:36:39","guid":{"rendered":"https:\/\/asp.denireilly.com\/New\/?page_id=4865"},"modified":"2023-07-07T10:41:01","modified_gmt":"2023-07-07T10:41:01","slug":"magnetometer","status":"publish","type":"page","link":"https:\/\/asp.denireilly.com\/index.php\/magnetometer\/","title":{"rendered":"Magnetometer"},"content":{"rendered":"
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Magnetometer Surveys
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A MAGNETOMETER MEASURE VARIATION IN THE EARTH\u2019S MAGNETIC FIELD AND CAN BE USED TO DETECT ANTHROPOGENIC FEATURES ON THE SEABED, BURIED ON LAND OR ALTERNATIVELY TO ASSIST IN THE MAPPING OF GEOLOGICAL FEATURES.<\/strong><\/h5>\n

Small local anomalies result from the contrasting levels of magnetic susceptibility which exist between in-filled \u2018cut\u2019 features or structures and the local substrate or bedrock.<\/p>\n

Magnetometer surveys are used in a variety of fields, and are particularly well suited to the detection and mapping of all sizes of ferrous objects including anchors, chains, cables, pipelines, ballast and other scattered shipwreck\n debris, munitions (UXO), aircraft, engines and any other magnetic objects.<\/p>\n

We have invested in the industry-leading Geometrics G-882 Cesium-Vapour Marine magnetometer, c\/w altimeter, to ensure we produce reliable, high quality results when undertaking magnetometer surveys.<\/p>\n

Where UXO detection is required, surveys are usually undertaken along pre-determined grid lines (often following desk-top analysis of historical records) with data logged at an average of four readings per metre. On-site data processing\n allows results to be monitored and modified as required relative to local conditions.<\/p>\n

We have extensive experience of using magnetometer systems as part of a UXO detection surveys, providing supplementary information via both \n multibeam<\/a> bathymetry and \n side-scan sonar<\/a> systems.<\/p>\n

Magnetometers are also used in a broader prospecting role to initially locate areas of \u2018magnetic activity\u2019 and to help determine the extent of anomalies associated with previously identified features. Objects as small as a screwdriver\n can be detected provided that the sensor is close to the seabed and within practical detection range.<\/p>\n

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Geophysical Survey Services<\/strong>\n
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