With the developing of the technology of automatic magnetic data processing , fluxgate magnetometer is widely used in geomagnetic observation now 隨著地磁數(shù)據(jù)自動化處理的發(fā)展,磁通門磁力儀在地磁觀測中的應(yīng)用也越來越廣泛。
Fluxgate magnetometer is a kind of vector magnetometer which has the ability of measuring the components of magnetic field directly . the fluxgate instrument is variometer based on magnetization non - linearity of " soft " magnetic material 磁通門磁力儀是直接測量地磁場分量的矢量磁力儀,是一種基于“軟”磁材料磁化特性的非線性的地磁相對記錄儀器。
Three kinds of common methods ( called as tuning and magnifying method , short circuit method , apparent coercive field strength method ) for fluxgate magnetometer signal detecting and their advantages and disadvantages are described in this paper 本文還介紹了三種常用的磁通門磁力儀信號檢測方法:調(diào)諧放大檢測、短路偶合檢測和視矯頑場強度檢測方法,并分析了各種方法的優(yōu)缺點。
First of all , this paper introduced the working theory of three kinds of fluxgate magnetometer sensors : single core sensor , double core sensor and ring core sensor . then the author discussed relations between noise and demagnetization coefficient , and relations between noise and dimension of fluxgate magnetometer sensors 本文從介紹磁通門傳感器的分類入手,詳細分析了單棒型、雙棒型和環(huán)型磁通門傳感器的工作原理,并且深入討論了磁通門傳感器的噪聲與退磁系數(shù)的關(guān)系以及噪聲與傳感器尺寸的關(guān)系。
As a kind of variometer , fluxgate magnetometer should has high observation precision as well as long - term stability and favorable temperature features . the compensation technology is the key for the performance of fluxgate magnetometer . this paper made an introduction about the compensation principle of fluxgate instrument 作為相對觀測的磁通門磁力儀,不僅要求其觀測精度應(yīng)滿足要求,而且還要求儀器具有長期穩(wěn)定性和良好的溫度特性,而對磁通門磁力儀的長期穩(wěn)定性和溫度特性有重要影響的部分就是儀器的補償部分。