【摘要】 地磁仪器比测是保障地磁测量准确可靠的有效手段。本文介绍了用近零同步观测法进行DI磁力仪的比测原理、方法和实例。该方法不需对磁测数据进行通化处理。因而不会引入其他测量系统的误差 ,可以有效地确定小于 0 .2′的仪器差。更多还原

【Abstract】 Calibration of geomagnetic instruments is an effective method for accurate and reliable geomagnetic measurements.This paper introduces the calibration principles,methods and examples of DI magnetometers by using near zero synchronous observation method.This method does not need reduce processing for geomagnetic observation data.So it can not be influenced by errors of other observational systems,and can effectively determine the instrument differences of <0.2′.更多还原