问题
问答题 简答题
在QXZ型气动色带提示仪中,阻尼阀与反馈气室组成什么环节?作用是什么?在显示锅炉水位中,阻尼阀开度大小的依据是什么?
答案
参考答案:
阻尼阀与反馈气室组成一阶惯性环节,对测量信号的变化起阻尼延时作用,以防止指示仪指针振荡,在显示锅炉水位中,调整阻尼阀的开度,使惯性环节的时间常数T接近于船舶的摇摆周期。
在QXZ型气动色带提示仪中,阻尼阀与反馈气室组成什么环节?作用是什么?在显示锅炉水位中,阻尼阀开度大小的依据是什么?
参考答案:
阻尼阀与反馈气室组成一阶惯性环节,对测量信号的变化起阻尼延时作用,以防止指示仪指针振荡,在显示锅炉水位中,调整阻尼阀的开度,使惯性环节的时间常数T接近于船舶的摇摆周期。
Street Markets(市场) around the World There are many ways of shopping. You can shop by telephone, by post or through your home computer. But for many people, the most exciting way to shop is also the most traditional(传统的)—at a street market. You can find markets anywhere in the world. Here are four of them:
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