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    • 56. 发明授权
    • Centrifugal type acceleration measuring device
    • 离心式加速度测量装置
    • US5353642A
    • 1994-10-11
    • US827167
    • 1992-01-28
    • Osamu HasegawaHisashi AndohKohichi SatohYouji MiuraKeinosuke Shirota
    • Osamu HasegawaHisashi AndohKohichi SatohYouji MiuraKeinosuke Shirota
    • G01P21/00G01P3/16G01P15/02
    • G01P21/00
    • An acceleration measuring system wherein acceleration transducers are mounted on a turntable supported by an air bearing and directly driven by a brushless motor. The output signals generated by the acceleration transducers are amplified by amplifiers mounted on the turntable and the output signals are converted to digital signals by an analog-to-digital converter also mounted on the turntable. The digital signals are modulated into AC signals by a modulator also mounted on the table and then transmitted to a demodulator on a fixed portion of the system through a rotary transformer. The output of the demodulator representing the acceleration signal is applied to digital-to-analog converters and also to a binary coded decimal converter. In an alternative embodiment, the acceleration transducers are mounted on individual separate turntables which in turn are mounted on a primary turntable. The individual turntables are each separately and individually driven by brushless motors and the primary turntable is also directly driven by a brushless motor.
    • 一种加速度测量系统,其中加速度传感器安装在由空气轴承支撑并由无刷电动机直接驱动的转盘上。 由加速度传感器产生的输出信号由安装在转台上的放大器放大,并且输出信号由也安装在转台上的模数转换器转换成数字信号。 数字信号通过也安装在表上的调制器调制成AC信号,然后通过旋转变压器传输到系统的固定部分上的解调器。 表示加速度信号的解调器的输出被施加到数模转换器,并且还被加到二进制编码的十进制转换器。 在替代实施例中,加速度传感器安装在各自独立的转盘上,转盘又安装在主转台上。 单独的转盘各自单独地由无刷电动机驱动,并且主转台也由无刷电动机直接驱动。