Skip to Main Content
Book Chapter

A Helium (He4) Optically Pumped Magnetometer Suitable for Airborne Measurements

By
Wang Qinge
Wang Qinge
Aero Geophysical Survey, Ministry of Geology and Mineral Resources, Beijing.
Search for other works by this author on:
Published:
January 01, 1989

Abstract

The principle of automatic tracking of a helium (He4) optically pumped magnetometer is described, with the frequency spectra of aeromagnetic anomalies analyzed and a bandwidth necessary for an airborne magnetometer proposed. Based on the bandwidth, the transfer function for the magnetometer is suggested as.

To the variations of a magnetic field, the tracking error can be estimated from the transfer function.

To make the tracking error less than the width of magnetic resonance, an additional high-speed tracking loop is suggested, which resulted in improvements in filtering for a gently varying magnetic field and high sensitivity. Because of the auxiliary loop, the tracking function to a fast varying magnetic field was improved resulting in improved measurements.

You do not currently have access to this article.
Don't already have an account? Register

Figures & Tables

Contents

Society of Exploration Geophysicists Geophysical References Series

An Overview of Exploration Geophysics in China — 1988

Zhao Jingxiang
Zhao Jingxiang
Search for other works by this author on:
Wang Yanjun
Wang Yanjun
Search for other works by this author on:
Fu Xuexin
Fu Xuexin
Search for other works by this author on:
Stanley H. Ward
Stanley H. Ward
Search for other works by this author on:
Society of Exploration Geophysicists
Volume
3
ISBN electronic:
9781560802662
Publication date:
January 01, 1989

GeoRef

References

Related

A comprehensive resource of eBooks for researchers in the Earth Sciences

This Feature Is Available To Subscribers Only

Sign In or Create an Account

This PDF is available to Subscribers Only

View Article Abstract & Purchase Options

For full access to this pdf, sign in to an existing account, or purchase an annual subscription.

Subscribe Now