关键词: 啮合原理, 误差与变异, 线啮合, 超声波多普勒, 电容与电导, 流速测量, 双模态, 油水两相流

Abstract: The conjugate principle of gears with geometrical error is analysed. The equation of error and deviation of line contact higher pair mechanism is proposed. The existence and uniqueness of the solution about this equation is also analysed.

Key words: Conjugate principle, Error and deviation, Line contact, Capacitance and conductance, Double modal, Flow velocity measurement, Ultrasound Doppler, Oil-water two-phase flow