AE SIGNAL DETECTION DEVICE FOR GRINDSTONE

WIPO Patent Application WO/2021/153042

A1

Provided is an AE signal detection device for a grindstone, the AE signal detection device being capable of detecting an acoustic emission wave from a point of grinding by the grindstone, not requiring replacement of an AE sensor, a preamplifier or a communication circuit board when the grindstone is replaced, suppressing restriction on an increase in the size of the grindstone and on applicable grinding devices and being also applicable to a grindstone not including a wheel core.　An AE signal detection device (10) for an annular grindstone (14) comprises: an AE sensor (24), which receives an acoustic emission wave generated by the grindstone (14) held between a fixed flange (18) and a moving flange (20) and outputs an AE signal (SAE), the fixed flange (18) being fixed to a rotation shaft (16), the moving flange (20) being provided movably toward and away from the fixed flange (18); a transmission circuit unit (28), which wirelessly transmits the output AE signal (SAE); and a reception circuit unit, which receives the transmitted AE signal (SAE). The AE sensor (24) is arranged in the moving flange (20), detects the acoustic emission wave transmitted through the moving flange (20) and outputs the AE signal (SAE).

ISOGIMI SATOSHI (JP)
OHASHI TOMOMI (JP)

PCT/JP2020/046423

August 05, 2021

December 11, 2020

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NORITAKE CO LTD (JP)

B24B49/10; B23Q17/09; B24B45/00; G01H1/00; G01N29/14

JP2015170744A	2015-09-28
JPH02112733A	1990-04-25
JPH0435865A	1992-02-06
JPS62162446A	1987-07-18
JP2002066879A	2002-03-05
JP2018504289A	2018-02-15
JPH09196751A	1997-07-31
JP2019030963A	2019-02-28
JP2013084795A	2013-05-09

IKEDA Haruyuki et al. (JP)

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