| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a magnetic measurement device that allows a magnetic sensor in a reference attitude to be installed without requiring unnecessary labor and spending much time, performs terrestrial magnetism compensation by a three-axis magnetic sensor in an optional attitude, and accurately measures magnetism without requiring unnecessary labor. Ž<P>SOLUTION: The magnetic measurement device includes: a reference attitude uniaxial magnetic sensor 1-1 having a detection axis in the vertical direction by a gimbal mechanism; a plurality of three-axis magnetic sensors 1-2 and 1-3 installed in optional attitudes; and a signal processing apparatus 2. The signal processing apparatus 2 converts respective output data of the three-axis magnetic sensors 1-2 and 1-3 of the optional attitudes into magnetic data equivalent to data obtained in the case where the sensors are installed in the magnetically east-west direction, magnetically south-north direction and vertical direction by referring to the output data of the reference attitude uniaxial magnetic sensor 1-1, uses the data after conversion as magnetic data for terrestrial magnetism compensation and magnetic data to be compensated, and subtracts the magnetic data to be compensated to perform terrestrial magnetism compensation. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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