Acoustic Emission AE on machine tools are generated by changes in micro-stress, caused by contact between tooling & work-piece. On grinding machines, this can be contact between wheel & work-piece or wheel & diamond dresser.
AE travels through the machine structure. This can be a problem when the signal must travel through multiple joints, or rolling element bearings within this structure. In these cases, bolt-on or stud-mount AE sensors may not be suitable.
The SBS ring type acoustic emission sensor, or Ring AE sensor, enables installation very close to the work-zone, eliminating the need for the AE signal to pass through bearings & joints. This is useful for internal grinding applications with no work-support, vertical grinding machines & for dual-support rotary diamond dressers.