MAGNETIC EXPOSURE MEASURING DEVICE

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 functio...

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Main Author MASUBUCHI SHINICHI
Format Patent
LanguageEnglish
Published 14.02.2013
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Abstract 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.
AbstractList 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.
Author MASUBUCHI SHINICHI
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Snippet 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...
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HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
Title MAGNETIC EXPOSURE MEASURING DEVICE
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