The ability of an inductor to store energy in the form of a magnetic field (and consequently to oppose changes in current) is called inductance. It is measured in the unit of the Henry (H). Inductors used to be commonly known by another term: choke.
Working for CGS means collaborating with a world-class team of experts and some of the most dynamic organizations around the globe. At CGS, our trademark is our entrepreneurial spirit. Founded in 1984 in New York City with a team of 5 people, CGS has steadily grown to now employ over 7500 professionals across North America, Latin America, Europe and Asia.
The first two years of business for CGG were shaky. Near-surface surveys (hydrology, mining and civil engineering) and oil exploration were not enough to break even in a period when oil was worth 10 cents a barrel. In 1966, CGG opened its first seismic data processing center in Massy, France. Veritas DGC Veritas Energy Services, a geophysical services company, was established in 1974 in Calgary, Canada with the purchase of Rafael B. Cruz and Associates Ltd. by David B. Robson.