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美国通用汽车公司的特拉科电子公司的工程师们根据英国物理学家于1890年首次发现的环形杯的旋转敏感特性,用了十多年的时间研究固态半球谐振陀螺(HRG)。现在,这一理论已用于捷联式惯性系统,这种惯性系统主要依赖于3个溶凝石英部件——杯形谐振子、发力器和位于底部的传感器。它们用铟焊料、金属化薄膜电极及导体连接在一起。当谐振子加上电压时,它会向上卷曲2.54μm,并产生传感器可以敏感到的小振幅波,波动与旋转角有关。
Engineers at General Motors Corp. of the United States spent more than a decade studying solid-state hemispherical resonator gyros (HRGs) based on the rotationally sensitive nature of ring cups first discovered by British physicists in 1890. Now, this theory has been applied to strapdown inertial systems, the inertial system relies mainly on three fused quartz parts - the cup resonator, power device and the bottom of the sensor. They are connected with indium solder, metallized film electrodes and conductors. When the harmonic voltage is applied, it will curl 2.54μm upward and produce a small amplitude wave that the sensor can sense. The fluctuation depends on the rotation angle.