Engineering Technology and Applications – Shao, Shu & Tian (Eds)
© 2014 Taylor & Francis Group, London, ISBN 978-1-138-02705-3
The testing technology of low noise chopper amplifier
Xinyu Shi, Kai Chen, Zhouying Lu & Yu Sun
Key Laboratory of Geo-detection, Ministry of Education, China University of Geosciences, Beijing, China
ABSTRACT: The marine controlled source electromagnetic method is used in exploring natural
gas hydrate undersea and oil gas, and one of the most pivotal techniques is how to observe the
electric signal from the seabed at a low noise level. This property of marine controlled source
electromagnetic receivers mainly depends on the electric-field sensors and the chopper amplifiers.
In order to check the technical specifications of ...