Abstract:
Provided is a dust removing device (470) and an imaging device using the dust removing device (470). In a dust removing device (470) to be set on a base (501), including a piezoelectric element (430) formed of a piezoelectric material (431) and a pair of opposing electrodes (432, 433), a vibration member, and a fixation member containing at least a high molecular compound component, a phase transition temperature T from a first ferroelectric crystal phase to a second ferroelectric crystal phase of the piezoelectric material (431) is set to -60°C
Abstract:
Provided is a lead-free piezoelectric ceramics having enhanced mechanical quality factor (Qm) and mechanical strength. The piezoelectric ceramics, includes at least a first crystal grain and a second crystal grain. The first crystal grain has an average equivalent circle diameter of 2 μm or more and 30 μm or less. The first crystal grain includes a perovskite-type metal oxide represented by the following general formula (1) as a main component, and the second crystal grain includes a perovskite-type metal oxide represented by the following general formula (2) as a main component: (1) xBaTiO3-yCaTiO3-zCaZrO3; and (2) x'BaTiO3-y'CaTiO3-z'CaZrO3, provided that x, y, z, x', y', and z' satisfy x+y+z=1, x'+y'+z'=1, 0≤x'≤0.15, 0.85≤y'≤1, 0≤z'≤0.05, x>x', 0 0.
Abstract translation:提供了具有增强的机械品质因数(Qm)和机械强度的无铅压电陶瓷。 压电陶瓷至少包括第一晶粒和第二晶粒。 第一晶粒的平均当量圆直径为2μm以上且30μm以下。 第一晶粒含有下述通式(1)所示的钙钛矿型金属氧化物作为主成分,第二晶粒含有下述通式(2)所示的钙钛矿型金属氧化物作为主成分 :(1)xBaTiO3-yCaTiO3-zCaZrO3; 和(2)x'BaTiO3-y'CaTiO3-z'CaZrO3,条件是x,y,z,x',y'和z'满足x + y + z = 1,x'+ y'+ z' =1,0≤x'≤0.15,0.85≤y'≤1,0≤z'≤0.05,x> x',0 0。
Abstract:
Provided is a lead-free piezoelectric ceramics having enhanced mechanical quality factor (Qm) and mechanical strength. The piezoelectric ceramics, includes at least a first crystal grain and a second crystal grain. The first crystal grain has an average equivalent circle diameter of 2 μm or more and 30 μm or less. The first crystal grain includes a perovskite-type metal oxide represented by the following general formula (1) as a main component, and the second crystal grain includes a perovskite-type metal oxide represented by the following general formula (2) as a main component: (1) xBaTiO3-yCaTiO3-zCaZrO3; and (2) x'BaTiO3-y'CaTiO3-z'CaZrO3, provided that x, y, z, x', y', and z' satisfy x+y+z=1, x'+y'+z'=1, 0≤x'≤0.15, 0.85≤y'≤1, 0≤z'≤0.05, x>x', 0 0.
Abstract translation:提供了具有增强的机械品质因数(Qm)和机械强度的无铅压电陶瓷。 压电陶瓷至少包括第一晶粒和第二晶粒。 第一晶粒的平均当量圆直径为2μm以上且30μm以下。 第一晶粒包括由以下通式(1)表示的钙钛矿型金属氧化物作为主要成分,第二晶粒包括由以下通式(2)表示的钙钛矿型金属氧化物作为主要成分 :(1)xBaTiO3-yCaTiO3-zCaZrO3; 和(2)x'BaTiO3-y'CaTiO3-z'CaZrO3,条件是x,y,z,x',y'和z'满足x + y + z = 1,x'+ y'+ z' =1,0≤x'≤0.15,0.85≤y'≤1,0≤z'≤0.05,x> x',0 0。
Abstract:
Provided is a dust removing device (470) and an imaging device using the dust removing device (470). In a dust removing device (470) to be set on a base (501), including a piezoelectric element (430) formed of a piezoelectric material (431) and a pair of opposing electrodes (432, 433), a vibration member, and a fixation member containing at least a high molecular compound component, a phase transition temperature T from a first ferroelectric crystal phase to a second ferroelectric crystal phase of the piezoelectric material (431) is set to -60°C
Abstract translation:提供了除尘装置(470)和使用除尘装置(470)的成像装置。 在设置在基体(501)上的除尘装置(470)中,包括由压电材料(431)和一对相对电极(432,483)形成的压电元件(430),振动部件 含有至少高分子化合物成分的固定构件,从压电材料(431)的第一铁电晶体相到第二铁电晶体相的相变温度T被设定为-60℃<= T <= -5 ℃,从而可以适当地设计和控制除尘装置(470),即使在低温下也可以获得高的除尘性能。