参数
点群 | 32 |
空间群 | P32I |
电阻率 | 4.0×1012Ω/cm-1 |
厚度 | 0.13-0.5mm |
直径 | 50mm |
长度 | 90-100mm |
熔点 | 1470℃ |
密度 | 5.67g/cm3 |
莫氏硬度 | 5.5 |
热膨胀系数 | aa=16×10-6/K, ac=4×10-6/K |
光损伤阈值 | 670MV/cm2 |
晶胞参数 | a=b=0.8162nm,c=0.5087nm |
介电常数 | ε11=18.27 |
ε33=55.26 | |
电光系数 | γ11=2.3×10-12m/V |
γ33=1.8×10-12m/V | |
压电应变常数(10-12)C / N | d11=6.3 |
d14=-5.4 | |
相速度,m / s | 2750~2850 |
机电耦合系数,K [%] | 0.28~0.46 |
溶解度 | 无 |
热膨胀系数 | α11=5.15×10-6K-1 |
α33=3.65×10-6K-1 |
最大工作频率 | 50KHz |
最大输出功率 | 7.5W |
脉宽 | 46ns |
能量输出-40℃ | 155mJ |
能量输出+ 50℃ | 163mJ |
室温能量输出 | 167mJ |
电光转换效率 | 1.26% |
属性 | ||||
石英 | LGS | Li2B4O7 | LiTaO3 | |
机电耦合系数K,%(BAW) | 7 | 15.8 | 24 | 47 |
频率间隔Δf,% | 0.25 | 0.9 | 4 | 7 |
Q-因子Q,×103 | 100 | 50 | 10 | 2 |
温度频率系数TFC,×10-6 /℃ | 0.5 | 1.6 | 6 | 4 |
晶体 | 石英 | LGS |
属性 | ||
密度, g/cm³ | 2.65 | 5.746 |
SAW速度 Vef,m / s | (0°, 132.75°, 0°) | (0°, 140°, 25°) |
3157 | 2756 | |
机电耦合系数K2emc,%(SAW) | 0.14 | 0.36 |
二阶温度 系数α2,×10-8/ /℃ | -3.2 | -6.8 |
温度 Coef。 TTO,℃ | 25 | 23 |
介电常数e | 4.92 | 27 |
能流角 , ° | 0 | 0.5 |
常数 | 相对介电常数 | 压电常数(pC / N) | 弹性刚度(1011 Pa) | |||||||
ε11 | ε33 | d11 | d14 | c11 | c12 | c13 | c14 | C33 | C44 | |
数值 | 18.96 | 50.19 | 5.66 | -5.48 | 1.898 | 1.058 | 1.022 | 0.144 | 2.626 | 0.535 |
一阶温度。系数(10-6·K-1) | 150 | -760 | 329 | -342 | -66 | 204 | -75 | -335 | -94 | -63 |
- 高损伤阈值
- 良好的旋光度
- 可以承受高低温变化
- 稳定的理化特性
- 机电耦合系数高(是石英的3倍)
- 低等效串联电阻
- 光电Q开关
- SAW装置
- BAW装置
- 传感器
- 大功率高重复率全固态激光器
- 高低温变激光
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