MAGNETOMETER

Magnetometer measures the strength and sometimes the direction of a magnetic field. An important use is the magnetometer for measuring the earth's magnetic field. By detecting irregularities in the Earth's magnetic field, a magnetometer may indicate the location of magnetic ore deposits such as iron ore, or geological formations associated with oil.

Magnetometers have been based on a number of different principles. Most magnetometers containing a magnetic device sensitive to a magnetic field. Some magnetometers use permanent magnet, an electromagnet others, and still others make use of the magnetic properties of atomic nuclei.

The magnetometer range is ± 1.000 nanoteslas (nT), and is measured by a 16 bit analog-to-digital converter, providing 0.03 nT sensitivity. With temperature compensation of the sensors and electronics, the accuracy of the instrument is 1 nT. The instruments are monitored for correct operation by adding a series of small chains attached to a set of auxiliary windings during calibration and verification weekly magnetometer proper gain and transient responses.

STAFF

Responsible for the EMBRACE - Magnetometer

Doc. Clezio Marcos De Nardin - Technical-Scientific Coordination

Doc. Nilson Sant'Anna - Technical-Systems Coordination

Contributors for the EMBRACE - Magnetometer

Doc. Antônio Lopes Padilha - CEA / INPE

Doc. Emilia Correia - INPE e CRAAM / Mackenzie

Doc. José Ricardo Abalde - IP&D / UNIVAP

Doc. Nelson Jorge Schuch - CRS / INPE

Doc. Paulo Fagundes - IP&D / UNIVAP

M.Sc. Juliano Moro - CEA / INPE

M.Sc. Laysa Cristina Araújo Resende - CEA / INPE

Acad. Laís Maria Guizelli Morais - CEA / INPE

Acad. Sony Su Chen - CEA / INPE

Calibration, Installation and Maintenance

Eng. Sinval Domingos - Chefe de Equipe

Tech. Wagner Sarjob Coura Borges - Técnico de Calibração

Tech. Francisco de Paula Vitor Mesquita

Tech. Avicena Filho

Tech. Acacio Cunha Neto

Tech. Cristiano de Castilho

Software Solutions (Systems and Applications of Softwares)

Doc. Nilson Sant'Anna - Coordination

Software Solutions (Redundancy system)

Doc. Adriano Petry - CRS / INPE

Systems Integration to the EMBRACE Portal

Eng. Rubens Cruz Gatto - Coordination

VERSION

1.0

Information for monitoring the Earth magnetic field (graphic of variation of H, geomagnetic components and Kindex by station).

2.0

Summary of indices based on data of all South American stations. Graphs of variation of H, geomagnetic components, dH/dT and Kindex per station take into regard the calculation of QDC.