【摘要】 简要叙述了采用步进电机无级控制某发动机氧阀 ,以达到控制氧阀的开与关角度、速度和氧阀的保持时间。该控制、驱动器参加了发动机地面热试车 ,其使用方便、控制准确、工作可靠更多还原

【Abstract】 Some engine oxygen valves are steplessly controlled with stepmotors.The purpose is to control the valve angle and speed opened or colsed,and time keeping valve some angle.The controlling and driving device is used in engine ground firing test .It is convenient to use,accurate to control and reliable to work.更多还原