| 摘要 |
FIBER-OPTIC ANGULAR RATE SENSOR HAVING ENHANCED RELIABILITY A fiber-optic angular rate sensor having enhanced reliability is disclosed, wherein counterpropagating light beams are directed through a multi turn fiber-optic coil. The light beams are phase shifted relative to each other as the coil rotates to produce a phase difference which is detected to provide a measurement of the rotational rate of the coil. A redundant light source and detector arrangement are included to enhance the reliability of the device and to insure a reciprocal device without sacrificing accuracy. |
