STANDARD DEVICE FOR CORRECTION OF A LOW FREQUENCY AC MAGNETIC FIELD MEASURING DEVICE CAPABLE OF SATISFYING THE INTERNATIONAL STANDARD OF MAGNETIC FIELD MEASUREMENT

摘要

PURPOSE: A standard device for correction of a low frequency AC magnetic field measuring device is provided to correct a magnetic field measuring device based on the international standard of magnetic field measurement.;CONSTITUTION: A generating unit(100) generates a low frequency magnetic field and the standard voltage used for correction of a magnetic field measuring device. A magnetic field converting unit(200) converts the low frequency magnetic field into an induced voltage by using a conversion factor. A correcting unit(300) includes a voltage comparator, a voltmeter, and a terminal. The correcting unit compares the standard voltage generated in the generating unit and the induced voltage converted in the magnetic field converting unit. The correcting unit calculates a correcting value of the magnetic field measuring device based on a compared result.;COPYRIGHT KIPO 2013;[Reference numerals] (200) Magnetic field converting unit; (310) Voltage comparator; (320) Voltmeter; (330) Terminal