Before revision: Since such cracks are vastly due to stress in the manufactured part, the spontaneous formation of a crack is acompanied by a very sharp, impulse-like signal in the HFIM process alndscape which can easily be deparated from other noise.
After revision: Since such cracks are vastly due to stress in the manufactured part, the spontaneous formation of a crack is accompanied by a very sharp, impulse-like signal in the HFIM process alndscape which can easily be deparated from other noise.