Three-component variometer based on a scalar potassium sensor

被引：41

作者：

Alexandrov, EB

Balabas, MV

Kulyasov, VN

Ivanov, AE

Pazgalev, AS

Rasson, JL

Vershovski, AK

Yakobson, NN

机构：

[1] SI Vavilov State Opt Inst, St Petersburg 190034, Russia

[2] Inst Royal Meteorol, Ctr Phys Globe, B-5670 Dourbes, Belgium

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2004年 / 15卷 / 05期

关键词：

geomagnetic instruments; magnetometer; variometer; magnetic field vector; optically pumped potassium magnetometer;

D O I：

10.1088/0957-0233/15/5/020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new variometer is developed comprising a fast-response scalar optically pumped potassium magnetometer inside a rotating magnetic field created by a two-dimensional coil system mounted on a quartz frame. The variometer measures three components of the Earth's field: the total field intensity and two transverse components. The theoretically predicted accuracy of the field component measurement is not worse than 0.1 nT. The noise-limited sensitivity measured in a quiet magnetic field has been proved to be not worse than 25 pT rms at 0.2 s and 30 pT rms at 1 min; comparison with a proton vector magnetometer and a fluxgate magnetometer shows 1.5 nT p-t-p daily deviation.

引用

页码：918 / 922

页数：5

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