发明名称 MEASURING INSTRUMENT FOR BEND OF HOLE
摘要 PURPOSE:To stabilize a roll gimbal with high speed by inputting a detection signal for roll angular velocity obtained from a biaxial gyro and an output signal obtained from a level into a servo amplifier. CONSTITUTION:An inclined angle can be obtained by an accelerometer 6 in the manner of connecting with a cable wound on a cable reel and forwarding into a hole with small diameter which is formed with a controller and a length measuring device. A bearing angle is obtained by one of detection shafts of the biaxial gyro 7, and also by means of controlling a motor 5 with a control signal 10a for horizontal position which is obtained from the servo amplifier 10 in accordance with the detection signal 7a for roll acceleration come from another detection shaft and the output signal 8a from the level 8, a rapid return of the roll gimbal 4 to the horizontal position can be attained. Consequently, the roll angle of the gimbal 4 can be accurately detected by the signal 7a, while a zero point reference on the horizontal position for the gimbal 4 can be obtained by the signal 8a from the level 8, then the horizontal position control for the gimbal 4 can be accurately performed.
申请公布号 JPH02196918(A) 申请公布日期 1990.08.03
申请号 JP19890015094 申请日期 1989.01.26
申请人 TAMAGAWA SEIKI CO LTD 发明人 SEKI TOSHIICHI
分类号 E21B47/02;G01C19/00;G01C19/02;G01C21/00;G01C21/16 主分类号 E21B47/02
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