AIST has devised a novel method for detecting static electricity by using vibrations and an electromagnetic field. It has developed a non-contact static electricity measuring technology that can be applied flexibly to production sites with various restrictions. The vibration of an object with static electricity induces an electromagnetic field. Measuring the changes in the induced electromagnetic field enables the amount of static electricity in the object to be measured. This technology can detect the induced electromagnetic field omnidirectionally, vibrate objects by using sound waves, and be installed flexibly in various environments with simple device configuration. It has promising applications at production sites with various spatial restrictions. In addition, the technology allows flat-surface static electricity distributions to be visualized through the scanning of focused sound waves on the surfaces of objects.
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