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石英晶体频标
释义
石英晶体频标
Encyclopedia
工学
频率标准
释
quartz crystal frequency standard
石英晶体频标
利用石英晶体的压电特性、高Q特性及稳定的物理化学性能,与振荡电路一起组成高稳定的石英晶体振荡器,从而输出较高准确度和稳定度的特定频率信号的频率标准。又称石英晶振频标(简称晶振频标)、石英晶体振荡器(简称晶振)。通常指日老化率在10-10量级或优于此量级,在计量或其他系统作为标准使用的晶振。
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aircraft hydraulic system test
aircraft ice protection system
aircraft icing test
aircraft icing tests in wind tunnel
aircraft identification
aircraft impact test
aircraft indoor near field RCS measurement for full scale aircraft
aircraft infrared radiation signature measurement of scale aircraft models
aircraft integration test of armament system and avionics system
aircraft intelligent actuation system
aircraft iron bird test rig
aircraft jet tests in wind tunnel
aircraft jettison test in wind tunnel
aircraft landing distance
aircraft landing gear
aircraft landing gear structure
aircraft landing system
aircraft landing weight
aircraft large part collaborative assembly and measuring calibration system
aircraft leasing
aircraft level measurement
aircraft life
aircraft lifetime
aircraft lift-drag ratio
aircraft lift-off speed
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更新时间:2025/11/28 14:50:14