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2 results about "Geological compass" patented technology
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There are a number of different (specialised) magnetic compasses used by geologists to measure orientation of geological structures, as they map in the field, to analyse (and document) the geometry of bedding planes, joints, and/or metamorphic foliations and lineations. In this aspect the most common device used to date is the analogue compass.
A method for correcting the measurement accuracy of a digital geological compass
The application relates to a measurement precision correction method for a digital geological compass. The method comprises the following steps: determining the magnetic field stability of a target position according to the difference between the total magnetic field strengths in a first interval; determining the magnetic field interference coefficient of each moment according to the difference between the total magnetic field strength of each moment and the total magnetic field strength of a target moment; determining the point source model fitting degree of a previous moment according to the difference between the magnetic field interference coefficients of each adjacent moment and the time length interval between each adjacent moment and an initial moment; determining a target time length according to the magnetic field interference coefficients in a second interval and the time length interval between each moment and the initial moment, and correcting the magnetic field data of each axis of the compass according to the difference between the magnetic field data of each axis of the target moment and the magnetic field data of the axis in the first interval and the target time length; and performing azimuth calibration on the compass according to the corrected magnetic field data of each axis and the latitude and longitude of the target position. The method can improve the accuracy of geological measurement.
Owner:HULUNBUIR MOUNTAIN GOLD MINING CO LTD
A multifunctional geological compass suitable for field geological work
This invention provides a multifunctional geological compass suitable for field geological work. The multifunctional geological compass includes a main housing unit, inside which are a magnetic needle system and a suspension cone system; a built-in lighting mechanism installed within the main housing unit, used to illuminate the magnetic needle system in low-light environments; and a foldable auxiliary measuring tray, which is hinged to the bottom of the main housing unit. The foldable auxiliary measuring tray can switch between a stowed state and an unfolded state. In the unfolded state, the foldable auxiliary measuring tray provides stable support for the compass on uneven or narrow measuring surfaces. The multifunctional geological compass provided by this invention has the advantages of high integration, strong adaptability, and convenient operation.
Owner:湖南省地质调查所