PROBLEM TO BE SOLVED: To provide a magnetic exposure measuring device for giving a notice/an alarm so that a worker or the like is not exposed to a strong magnetic field of an MRI diagnostic apparatus or the like.SOLUTION: The casing 1 of the magnetic exposure measuring device has a mounting function, it can be mounted on a human body or another object, a magnetic flux density Bv to which the worker is exposed is measured, a magnetic flux density integration value Bs and an average magnetic flux density value Ba, etc., are obtained from the value, and when the values become larger than a set determination threshold, an alarm is issued to the worker by sound or light or the like. Inside the casing 1, a plurality of magnetic sensors 2, 3 and 4 arranged in different directions, a plurality of arithmetic functions 5 and 11 for arithmetically processing output signals of the respective magnetic sensors, comparison functions 10, 13 and 15 for comparing the output of the arithmetic function with preliminarily set or selected determination thresholds 9, 12 and 14, and display functions 19 and 20 for issuing an alarm by sound or light depending on the determination result of the comparison functions are housed.COPYRIGHT: (C)2013,JPO&INPIT【課題】MRI診断装置等の強力な磁場に従事者等が暴露されないように告知・警告する磁気被曝測定器の提供を図る。【解決手段】磁気被曝測定器の筐体1に装着機能を備え、人体または他の物体に装着でき、従事者が被曝する磁束密度Bvを計測し、その値から磁束密度積算値Bsや平均磁束密度値Baなどを求め、それらの値が設定した判定閾値より大きくなった場合、音や光などによって従事者に対して警告を出すようにしたもので、筐体1内に対して、異なる方向に配置された複数の磁気センサ2,3,4と、各磁気センサの出力信号を演算処理する複数の演算機能5,11と、これら演算機能の出力と予め設定又は選択された判定閾値9,12,14とを比較する比較機能10,13,15と、これら比較機能の判定結果によって音声または光による警報を発する表示機能19,20とを収容した。【選択図】図1
