Japanese fastener manufacturers develop bolts with micro devices

The Japanese Aerospace Machine Development Agency (JAITA, Tokyo Metropolitan Area) has teamed up with the Kanto fastener manufacturer to develop a new technology in which micro-mechanical components combined with mechanical structures and electronic circuits are placed in the bolts. This technology wirelessly monitors the tightness and damage of the bolts after tightening.

JAITA said that in the future, this technology will be applied to important safety components such as aircraft, automobiles and precision parts. It is also worth looking forward to the rapid development of fastener tightening management in the future.

Since 2006, JAITA has been conducting research on systems that can monitor bolt tightness and damage, and has attempted to monitor the damage of fastening components on artificial satellites that are outside the Earth's atmosphere from the ground. JAITA embeds its exclusively developed MEMS "axial force sensor" in the bolt to detect the bolt load. If there is any abnormality in the detected bolt, the sensor can immediately transmit the information to the sensor of the artificial satellite through wireless communication, and the ground command room can immediately judge which bolt is abnormal and related abnormal information through the monitor.

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