一、概述压电点火方式是一种利用强电介质压电效应的点火方式,即在压电元件上加压,使之直接产生高压电,并将此高压输到火花塞上,产生点火火花。第二次世界大战前,压电材料仅限于水晶、卤盐单晶,而战后由于发现钛酸钡(BaTiO_3)的强介电性和压电性而发展成磁性材料。在钛酸钡强介电性的基础研究中,首先对用Pb(铅) First, an overview Piezoelectric ignition is a kind of ignition method using the strong dielectric piezoelectric effect, that is, the pressure on the piezoelectric element, so that a direct result of high-voltage electricity, and this high pressure lost to the spark plug, spark ignition. Prior to the Second World War, the piezoelectric material was limited to crystal and halocrystal single crystal, but developed into magnetic material after the war because of the ferroelectricity and piezoelectricity of barium titanate (BaTiO_3). In barium titanate strong dielectric basic research, the first with Pb (lead)