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Q22FA1280041300爱普生石英晶体压电常数与表面电荷计算

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浏览：- 发布日期：2022-09-01 15:26:46【大中小】

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Q22FA1280041300爱普生石英晶体压电常数与表面电荷计算

从石英晶体上切下平行六面体----晶体切片,使它的晶面分别平行于X,Y,Z轴.当晶体受到X方向压缩应力T1-N/m2作用时,晶片将产生厚度变形,在垂直于X方向上产生的电荷密度与应力成正比.

当石英晶体受到沿X方向的压力作用时,爱普生晶振晶体沿X方向产生压缩变形,正负离子的相对位置随之变动,正负电荷中心不再重合,电偶极矩在X轴方向的分量为P1+P2+P3>0,在X轴在正方向的晶体表面上出现正电荷.其它轴为0.称为"纵向压电效应"Q22FA1280041300晶振,爱普生石英晶体

爱普生晶振编码	长x宽x高	型号	石英晶振频率	负载	频率25°C	频率公差	工作温度范围	ESR最大
Q22FA1280039600	2 x 1.6 x 0.5mm	FA-128	40.000000 MHz	10 pF	+/-10 ppm	+/-10 ppm	-30 to +85 °C	≤ 60 Ω
Q22FA1280039800	2 x 1.6 x 0.5mm	FA-128	24.000000 MHz	8 pF	+/-10 ppm	+/-20 ppm	-40 to +85 °C	≤ 80 Ω
Q22FA1280040000	2 x 1.6 x 0.5mm	FA-128	16.000000 MHz	8 pF	+/-10 ppm	+/-20 ppm	-40 to +85 °C	≤ 200 Ω
Q22FA1280040100	2 x 1.6 x 0.5mm	FA-128	32.000000 MHz	9 pF	+/-30 ppm	+/-30 ppm	-30 to +80 °C	≤ 60 Ω
Q22FA1280040500	2 x 1.6 x 0.5mm	FA-128	16.000000 MHz	12 pF	+/-30 ppm	+/-30 ppm	-20 to +75 °C	≤ 200 Ω
Q22FA1280041300	2 x 1.6 x 0.5mm	FA-128	27.000000 MHz	20 pF	+/-30 ppm	+/-30 ppm	-40 to +85 °C	≤ 60 Ω
Q22FA1280041600	2 x 1.6 x 0.5mm	FA-128	16.000000 MHz	22 pF	+/-30 ppm	+/-30 ppm	-30 to +85 °C	≤ 200 Ω
Q22FA1280041800	2 x 1.6 x 0.5mm	FA-128	52.000000 MHz	8 pF	+/-30 ppm	+/-30 ppm	-30 to +85 °C	≤ 60 Ω
Q22FA1280042000	2 x 1.6 x 0.5mm	FA-128	24.000000 MHz	8 pF	+/-30 ppm	+/-30 ppm	-20 to +75 °C	≤ 80 Ω
Q22FA1280042300	2 x 1.6 x 0.5mm	FA-128	16.000000 MHz	8 pF	+/-15 ppm	+/-15 ppm	-20 to +75 °C	≤ 200 Ω
Q22FA1280043600	2 x 1.6 x 0.5mm	FA-128	37.400000 MHz	17 pF	+/-10 ppm	+/-10 ppm	-30 to +85 °C	≤ 60 Ω
Q22FA1280043800	2 x 1.6 x 0.5mm	FA-128	32.000000 MHz	6 pF	+/-10 ppm	+/-10 ppm	-20 to +75 °C	≤ 60 Ω
Q22FA1280044100	2 x 1.6 x 0.5mm	FA-128	20.000000 MHz	8 pF	+/-30 ppm	+/-30 ppm	-40 to +85 °C	≤ 100 Ω
Q22FA1280044200	2 x 1.6 x 0.5mm	FA-128	20.000000 MHz	12.5 pF	+/-20 ppm	+/-10 ppm	-20 to +85 °C	≤ 100 Ω
Q22FA1280045000	2 x 1.6 x 0.5mm	FA-128	25.000000 MHz	6 pF	+/-10 ppm	+/-10 ppm	-20 to +75 °C	≤ 80 Ω
Q22FA1280045100	2 x 1.6 x 0.5mm	FA-128	25.000000 MHz	6 pF	+/-30 ppm	+/-30 ppm	-40 to +85 °C	≤ 80 Ω
Q22FA1280045200	2 x 1.6 x 0.5mm	FA-128	32.000000 MHz	8 pF	+/-10 ppm	+/-22 ppm	-40 to +105 °C	≤ 60 Ω
Q22FA1280045300	2 x 1.6 x 0.5mm	FA-128	32.000000 MHz	8 pF	+/-9 ppm	+/-21 ppm	-40 to +105 °C	≤ 60 Ω
Q22FA1280045400	2 x 1.6 x 0.5mm	FA-128	31.250000 MHz	10 pF	+/-50 ppm	+/-30 ppm	-40 to +85 °C	≤ 60 Ω
Q22FA1280045800	2 x 1.6 x 0.5mm	FA-128	16.000000 MHz	16 pF	+/-10 ppm	+/-10 ppm	-20 to +70 °C	≤ 200 Ω
Q22FA1280046100	2 x 1.6 x 0.5mm	FA-128	26.000000 MHz	11 pF	+/-10 ppm	+/-10 ppm	-20 to +75 °C	≤ 60 Ω
Q22FA1280046300	2 x 1.6 x 0.5mm	FA-128	24.000000 MHz	7 pF	+/-10 ppm	+/-15 ppm	-40 to +85 °C	≤ 60 Ω
Q22FA1280046700	2 x 1.6 x 0.5mm	FA-128	24.000000 MHz	8 pF	+/-10 ppm	+/-20 ppm	-40 to +85 °C	≤ 60 Ω
Q22FA1280046800	2 x 1.6 x 0.5mm	FA-128	24.000000 MHz	9 pF	+/-10 ppm	+/-10 ppm	-20 to +75 °C	≤ 80 Ω
Q22FA1280046900	2 x 1.6 x 0.5mm	FA-128	48.000000 MHz	8 pF	+/-10 ppm	+/-20 ppm	-20 to +70 °C	≤ 60 Ω

为直观起见,将石英沿Z方向投影,压电效应机理

当未受到力作用时,正负离子硅与氧正好分布在正六边形的顶角上,形成3个大小相等、互成120度的电偶矩P1,P2,P3.P=ql,q为电荷量,l为正负电荷之间距离.进口晶振电偶极矩方向为负电荷指向正电荷.此时正负电荷中心重合,电偶极矩的矢量和等于零.这时晶体表面不产生电荷,石英晶体从整体上是呈电中性的.

当石英晶体受到没Y方向作用的压力作用时,电偶极矩在X方向的分量小于0,晶体表面正电荷,其它方向为0.称为"横向压电效应".Q22FA1280041300晶振,爱普生石英晶体

下一篇：爱普生主流的3.13-3.46V带电压晶振X1G005351004400 上一篇：爱普生编码X1G004801005900是一款CMOS输出的有源晶体振荡器

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Q22FA1280041300爱普生石英晶体压电常数与表面电荷计算

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