Methods and systems are provided for estimating liability in an accident. The mould plate is deformable according to bending andor torsion into deformed out-of-plane shapes. A plurality of k-space echoes signals is acquired. Multiple blocks are positionable slidably on top of the ground side-against-side with their beams coupled longitudinally to one another at least approximately end-to-end. Accordingly, it attains the objects of simplifying its structure and saving assembling space, and avoids the breakage of the memory metal attributed to shocking force during drop test. The mounted resistance Rm of each of the n capacitors is substantially equal to.