| 摘要 |
PURPOSE:To accurately detect three-dimensional movement, by sealing a conductive liquid in a conductive case so that a continuity state is selectively formed between a plurality of electrodes, which are arranged in the conductive case, and said conductive case corresponding to the posture of the case. CONSTITUTION:A spherical liquid switch 10 has such a structure that four electrodes 12a, 12b, 12c, 12d are arranged in an earthed conductive case 11 through insulating members 13 and a conductive liquid 14 such as mercury is sealed therein so as to occupy about 1/4 of said case 11. In this case, the electrodes 12a, 12c are arranged by allowing strip like conductors to oppose with each other in vertical direction while the electrodes 12b, 12d are arranged by allowing short cylindrical conductors to oppose to each other in a horizontal direction. The electrodes 12a-12d are respectively connected to the terminals 16a-16d of a direction detecting circuit 15 and signal output terminals 19a-19d are led out from connection points of the terminals 16a-16d and load resistors 18a-18d. |
