A processor core 4 is provided with an interrupt controller 22 which serves to set an interrupt mask bit F and a hardware control when an interrupt fiq occurs. By using silicon oxide particles having a particle diameter in a particular range as a starting raw material, and heating these particles in the range of 850\xb0 C. The cylinder is vibrated by a shaker table and pressure pulses in the fluid are transmitted to a stationary housing and to a second piston in the housing. The film scanning method automatically completes the recognition of film type, performs accurate scanning based on the scan exposure time, expands the dynamic range and reduces noise impacts, so as to obtain a scanned image with higher accuracy.