公开(公告)号：US11466987B2

公开(公告)日：2022-10-11

申请号：US16753176

申请日：2018-07-25

申请人： TOKYO INSTITUTE OF TECHNOLOGY ,  OSAKA UNIVERSITY ,  JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED ,  MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Mikio Kozuma ,  Ryotaro Inoue ,  Takashi Mukaiyama ,  Utako Tanaka ,  Seiichi Morimoto ,  Kazunori Yoshioka ,  Atsushi Tanaka ,  Yuichiro Kamino

IPC分类号： G01C19/58

摘要： The present invention reduces measurement time. A gyroscope of the present invention includes a planar ion trap part, a microwave irradiation part, a laser irradiation part and a measurement part. The planar ion trap part includes two rf electrodes and two DC electrode rows, and forms ion traps that trap one ion on a substrate, a normal direction of the surface of the planar ion trap part corresponds to a z direction. The rf electrodes are disposed in the x direction on the substrate at a predetermined interval. The DC electrode rows are disposed in the x direction on the substrate so as to sandwich the two rf electrodes. The DC electrode rows each include at least five DC electrodes in the x direction. The trapped ions are spaced so as not to interfere with each other. The microwave irradiation part irradiates the ions with π/2 microwave pulses.

公开(公告)号：US08994952B2

公开(公告)日：2015-03-31

申请号：US13967761

申请日：2013-08-15

申请人： Japan Aviation Electronics Industry, Limited

发明人： Kei Iizuka ,  Kazunori Yoshioka ,  Naoki Yamamoto

IPC分类号： G01C19/68 ,  G01C19/70 ,  G01C19/64

CPC分类号： G01C19/68 ,  G01C19/70

摘要： A ring laser gyro with no piezoelectric elements for dither detection includes a laser beam receiving unit for receiving a laser beam taken out of a gyro block, a laser beam intensity measuring unit for measuring the intensity of the laser beam received by the laser beam receiving unit, a dither mechanism, a dither control unit for driving the dither mechanism, and a gyro case housing the gyro block, wherein the laser beam receiving unit is secured to the gyro case, the laser beam receiving unit has a laser beam receiving surface for receiving the laser beam from the gyro block to detect a laser beam receiving position on the laser beam receiving surface and output positional information indicating the laser beam receiving position. The dither control unit drives the dither mechanism on the basis of information indicating the amplitude of the laser beam receiving position obtained from the positional information.

摘要翻译： 没有用于抖动检测的压电元件的环形激光陀螺仪包括用于接收从陀螺仪块取出的激光束的激光束接收单元，用于测量由激光束接收单元接收的激光束的强度的激光束强度测量单元 ，抖动机构，用于驱动抖动机构的抖动控制单元和容纳陀螺仪块的陀螺仪盒，其中激光束接收单元固定到陀螺仪盒，激光束接收单元具有用于接收的激光束接收表面 来自陀螺仪块的激光束，以检测激光束接收表面上的激光束接收位置，并输出指示激光束接收位置的位置信息。 抖动控制单元根据从位置信息获得的表示激光束接收位置的振幅的信息驱动抖动机构。