A、1.5°
B、0.75°
C、45°电角度
D、90°电角度
A. 转子线圈的通电状态每改变一次,转子转过的角度
B. 定子绕组的通电状态改变一次,转子转过的角度
C. 转子相对于锭子转立的角度
D. 转子启动时,所处的角度位置。
【简答题】A typical liquid storage process is shown in Fig1, where qi and q are volumetric flow rates. Derive the transfer function model from qi to level h considering two cases. (8pts) 1)The flow may be assumed to be linearly related to the driving force, the liquid level, in analogy to Ohm’s law for electrical circuits (E=IR). That is, h=qRv, where Rv is the resistance of the exit pipe. (4 pts) 2)A more realistic expression for flow rate q is linear to the square root of the liquid level h, that is,(4 pts)Fig1. A liquid-level storage process.
为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!