| 摘要 |
PURPOSE:To extend a life with the elimination of errors by arranging a weighted blade about a rotating shaft, a hinge on the blade in such a manner as to be deformed when a torque works thereon and a optically line displacement meter for measuring a deformation caused. CONSTITUTION:When an angular speed input OMEGA is given, a torque is generated to deform hinges 3 and 3'. A parallel light beam from a projector 12 hits a mirror 11 to be reflected to photodetectors 13a and 13b. The element 13 is divided into two same pieces 13a and 13b which are so connected to invert outputs thereof and the separate photodetectors produce outputs proportional to an area exposed to a parallel beam. As the mirror tilts, an output is produced to be made proportional to an angle theta of inclination in a fine range thereof alpha. As outputs of elements 13 and 13' are the same in the size and opposite in the polarity, an output voltage is doubled when they are synthesized in reversal to allow the cancelling of effect of acceleration. This eliminates the need for a slip ring and extends a life. |
