2058519-1

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The 205851-1 Business Magnetometer, also known as a fluxgate magnetometer or fluxgate boschlermeter, is a type of magnetometer used in geomagnetic, aeromagnetic and magnetotelluric surveys. It is an instrument designed to measure the strength and direction of the earth\'s magnetic field by using a fluxgate magnetometer, a sensor that consists of two columns of fluxgate coils which are arranged orthogonal to each other. By passing an electrical current through these two sets of coils, the magnetometer is able to measure the strength and direction of the earth\'s magnetic field.

In order for the fluxgate magnetometer to properly measure the earth\'s magnetic field, the entire instrument must be carefully calibrated prior to use. This is done to ensure accuracy and precision and includes two separate steps: initial calibration and periodic calibration. During initial calibration, the instrument is set up in the same location for a period of time and the readings are measured to determine the local geomagnetic field. This field is then compared to an international database such as the World Magnetic Model (WMM) to ensure that the instrument is operating within the set standards. During periodic calibration, the magnetometer is recalibrated periodically to ensure that the measurements remain accurate.

Once calibrated, the fluxgate magnetometer is ready for use in measuring the earth\'s magnetism in the fields outlined below. In geomagnetic surveys, the fluxgate magnetometer is used to identify any significant differences in the geomagnetic field which occur due to geological or anthropogenic features. This type of survey is used to identify and map variations in the earth\'s magnetic field for geological mapping and resource exploration. Aeromagnetic surveys use the magnetometer to identify anomalies in the upper atmosphere, such as the changes in the electromagnetic radiation caused by storms or high wave action.

Magnetotelluric surveys, on the other hand, measure the electrical properties of earth substrates and can be used to identify and map conductivity and resistivity anomalies in various ground substrates. This type of survey is used for mineral, geothermal, hydrocarbon, and groundwater exploration. In all of these cases, the fluxgate magnetometer is used in conjunction with other instruments such as induction magnetometers, proton precession magnetometers and magnetically sensitive gravimeters.

Although the 205851-1 Business Magnetometer can be used for a variety of applications, its primary use is in geomagnetic surveys. When conducting a geomagnetic survey, the magnetometer is placed at various points on the ground and the reading is taken. This data can then be used to measure changes in the geomagnetic field which can be used to identify geological features and mineral deposits. In addition, the instrument can be used to measure disturbances caused by external sources such as anthropogenic activities.

In conclusion, the 205851-1 Business Magnetometer is an instrument commonly used in geomagnetic, aeromagnetic and magnetotelluric surveys. It consists of two sets of fluxgate coils arranged orthogonally, and must be calibrated prior to use. Once calibrated, the instrument can be used to measure the strength and direction of the earth\'s magnetic field in a variety of applications.

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