【摘要】 <正> ZZZ-1型质子旋进式磁力仪是一种测量地磁场总强度的绝对值观测仪器。它是为比测北京地磁传输台网的磁力仪而设计的,适用于室内外定点测量。仪器最小读数为0.1γ,观测精度为0.25γ。仪器具有时间服务系统,其自动采样时间为每分钟、每整10分钟及每小时任选,采样次数为一次、二次、四次或八次任选。记录方式分为自动数字显示和数字自动记录两种。更多还原

【Abstract】 The paper describes the design and the principal specification of ZZZ-1 proton precession magnetometer with, high accuracy. The sensitivity of the instrument is 0.1r.It samples automatically and records the measurement result of the Earth’s magnetic field intensity and the sampling time, therefore it is suitable for continuously measuring the resultant intensity of the Earth’s magnetic field at observatories. The instrument has been operating at four geomagnetic observatories for about two years. The data, obtained during the operation period show good stability and the accuracy is higher than 0.25r.更多还原