1、某四相磁阻式步进电机,转子齿数为Zr=50(齿),请计算出单拍制和四相八拍时的步距角θb1=?和θb2=?并分别列出
来源:学生作业帮 编辑:大师作文网作业帮 分类:英语作业 时间:2024/11/12 23:54:23
1、某四相磁阻式步进电机,转子齿数为Zr=50(齿),请计算出单拍制和四相八拍时的步距角θb1=?和θb2=?并分别列出单、双拍制,以及四相八拍时的通电顺序.
2、某磁阻式步进电机定子上有8个极,若正整数参数K取6,则
(1) 此电机为几相电机?转子上应有多少个齿?
(2) 计算极距为多少?若每个极距下所包含的转子齿数是整数,会有什么情况发生?
3、有一台直流发电机,已知 ,Ea=230V,Ra=100 ,负载转速n=1500r/min,空载转速n0=1800r/min,试求:(1) 求每极磁通.(2) 若磁通不变,电磁转矩为多少?
4、欲使用某直流伺服电动机,需要取得其机械特性.现测得控制电压 时的两组数据,即
转速 (r/min)\x05 控制电流 (A)\x05备注
4500
3000\x050.05
0.2\x05空载
负载
试画出 时相应的机械特
3题有一台直流发电机已知,Ce=8.47,Ea=230V,Ra=100欧姆 ,负载转速n=1500r/min,空载转速n0=1800r/min,试求:(1) 求每极磁通.(2) 若磁通不变,电磁转矩为多少?
4.欲使用某直流伺服电动机,需要取得其机械特性.现 测得控制电压Ua=100V 时得到一下两组数据,即
转速 (r/min)\x05 控制电流 (A)\x05备注
4500 0.05 空载
3000\x05 0.2 负载
试画出Ua=110V时相应的机械特性!
2、某磁阻式步进电机定子上有8个极,若正整数参数K取6,则
(1) 此电机为几相电机?转子上应有多少个齿?
(2) 计算极距为多少?若每个极距下所包含的转子齿数是整数,会有什么情况发生?
3、有一台直流发电机,已知 ,Ea=230V,Ra=100 ,负载转速n=1500r/min,空载转速n0=1800r/min,试求:(1) 求每极磁通.(2) 若磁通不变,电磁转矩为多少?
4、欲使用某直流伺服电动机,需要取得其机械特性.现测得控制电压 时的两组数据,即
转速 (r/min)\x05 控制电流 (A)\x05备注
4500
3000\x050.05
0.2\x05空载
负载
试画出 时相应的机械特
3题有一台直流发电机已知,Ce=8.47,Ea=230V,Ra=100欧姆 ,负载转速n=1500r/min,空载转速n0=1800r/min,试求:(1) 求每极磁通.(2) 若磁通不变,电磁转矩为多少?
4.欲使用某直流伺服电动机,需要取得其机械特性.现 测得控制电压Ua=100V 时得到一下两组数据,即
转速 (r/min)\x05 控制电流 (A)\x05备注
4500 0.05 空载
3000\x05 0.2 负载
试画出Ua=110V时相应的机械特性!
Husband wife dialogue
1.
On her husband to get up:get up,get up,do not you get up early today to meet Well said.
Wife:You do not touch me!I want to sleep!!
Husband:fast from it,to should not be late.
wife:Yeah!Are the late!How did you call me!!!
2.
wife about to eat:I eat the plum in half,very good to eat,and the rest to you eat.
Husband:I do not like plum.
Wife:No,you love to eat!You are not eaten anything against me!
Husband:This fish is very good to eat,come.
Wife:You dirty chopsticks touched,who eat!
husband:What do you eat I eat half,I do not hold anything against you,how do you hold anything against me?
wife:you are right.I hold anything against you that I am better than you clean.I'm clean,how can you than you hold anything against me?!
3.
divorce his wife:If we divorced,the house belongs to me,my money I have to take.
Husband:What about my money?
Wife:Your money is my money,what is your money!
wife:Also,your monthly income after divorce have to give me 80%.Ah,if you marry again,then I became 60%.
husband:my wife,I will not divorce you!
4.
on housework and her husband:We divide the job into home.
wife:good.First of all,men do it too dirty work,such as grazing,brush the toilet,wipe the table ......
husband:this right.
Wife:You studied engineering in school,and I was learning the arts,and live with your kid things,like washing machines,rice cookers,electric irons ......
husband:this ......OK!
wife:men outside,women inside.And dealing with outsiders you do it live,buy groceries,utility bills,take the newspaper milk ......
Husband:OK,OK,you do
Wife:Do not worry ah.So much smoke in the kitchen,can destroy the skin,and cooking with your kid.
Husband:You tell me you do it.
wife:I have a lot to dry Yeah.I can be with you,monitoring you,praise you,comfort you ......
5.
Wife about the child:we want a child.
Husband:OK.
Wife:Do you like our children?
Husband:Yes.
Wife:No!You have a person like me!
Husband:Well,Mac eyeshadow,well,Ray Ban sunglasses,for a person like you.
Wife:That my child how can you not like ah!
husband:we still do not have to children.
6.on the water
wife:her husband,I want to drink!
Husband:I'll keep on doing.
Husband:hey,this cup is not in your hand Well,did not see?
wife:Yes,I just want you to me.
7.about leadership
wife:I was not out of the leadership at home have to be leaders.You're out is to lead,must be led at home.
Husband:What if I do not succeed in leading the outside it?
wife:a man,Man on the outside face,home to come and collect his wife Shua Weifeng,What kind of man!
8.
wife on the bed:we cover the double was it.
Husband:Do not!That the next morning to all wrapped on you.I did cover none.Or build your own bar,and my heart at ease.
Wife:Well,you are yourself cover,until tomorrow morning I still have to be wrapped to go!
9.on the center
wife:I have been in our family center in your home but also to me as the center.
husband:I have been in our family center.
wife:you can be my center of that center than important.
Husband:Why?
Wife:Because I am a daughter,you're just a kid.
10.
wife on the phone:Why do not you call me?!
Husband:falsely accuse!Today is not that a good thing you give me a call.Finally,I waited a day,or I'll call you.
wife:I said,can I changed my mind.Ai-ling said:Women have the privilege to change his mind.
husband:Do you change your mind did not tell me it!
wife:I said,my heart said,Who told you and my heart is not interlinked.
11.
wife and friends on a different surname:I have a boyfriend,you can not interfere with me.
Husband:OK,I have a girlfriend.
Wife:No!
Husband:Why Yes I know I not.
wife:I am a boyfriend,you can not do the others can do,I will not pick your old problems,and is conducive to a happy family .
your girlfriend,I am acting by a small,jealous quarrel with you,is not conducive to family stability.
husband:I have acting by little.
wife:a man,mulberry handbags sale,and woman as acting by a small,loss of nerve to say you!
12.
take things on his wife:the bag you carry it with me.
Husband:I took four bags,and you get nothing,the nerve it?
wife:I was holding it for you!100 kilos you do,I will get something better than what you get heavier.
13.
wife on a walk:walk to a piece of the road we have it.
Husband:too far to get there,now that we can not go back.
Wife:Well,you carry me back.
14.
on the affair his wife:now play the old TV affair,you say,you will have an affair it?
Husband:no.
Wife:Why?
husband:Do you have a regret I had enough,never again to be the second
15.on the streets
Wife:My husband,took to the streets go.
A kinds of situations:
husband:go!
Wife:You see you,that is fun,who are three years old,the play has such a big heart,a little ambition at all.
B kinds of situations:
husband:do not!
Wife:You see you,never with me one day to know the work of the work,who are three years old,and still did not understand life ,do not care about family!
1.
On her husband to get up:get up,get up,do not you get up early today to meet Well said.
Wife:You do not touch me!I want to sleep!!
Husband:fast from it,to should not be late.
wife:Yeah!Are the late!How did you call me!!!
2.
wife about to eat:I eat the plum in half,very good to eat,and the rest to you eat.
Husband:I do not like plum.
Wife:No,you love to eat!You are not eaten anything against me!
Husband:This fish is very good to eat,come.
Wife:You dirty chopsticks touched,who eat!
husband:What do you eat I eat half,I do not hold anything against you,how do you hold anything against me?
wife:you are right.I hold anything against you that I am better than you clean.I'm clean,how can you than you hold anything against me?!
3.
divorce his wife:If we divorced,the house belongs to me,my money I have to take.
Husband:What about my money?
Wife:Your money is my money,what is your money!
wife:Also,your monthly income after divorce have to give me 80%.Ah,if you marry again,then I became 60%.
husband:my wife,I will not divorce you!
4.
on housework and her husband:We divide the job into home.
wife:good.First of all,men do it too dirty work,such as grazing,brush the toilet,wipe the table ......
husband:this right.
Wife:You studied engineering in school,and I was learning the arts,and live with your kid things,like washing machines,rice cookers,electric irons ......
husband:this ......OK!
wife:men outside,women inside.And dealing with outsiders you do it live,buy groceries,utility bills,take the newspaper milk ......
Husband:OK,OK,you do
Wife:Do not worry ah.So much smoke in the kitchen,can destroy the skin,and cooking with your kid.
Husband:You tell me you do it.
wife:I have a lot to dry Yeah.I can be with you,monitoring you,praise you,comfort you ......
5.
Wife about the child:we want a child.
Husband:OK.
Wife:Do you like our children?
Husband:Yes.
Wife:No!You have a person like me!
Husband:Well,Mac eyeshadow,well,Ray Ban sunglasses,for a person like you.
Wife:That my child how can you not like ah!
husband:we still do not have to children.
6.on the water
wife:her husband,I want to drink!
Husband:I'll keep on doing.
Husband:hey,this cup is not in your hand Well,did not see?
wife:Yes,I just want you to me.
7.about leadership
wife:I was not out of the leadership at home have to be leaders.You're out is to lead,must be led at home.
Husband:What if I do not succeed in leading the outside it?
wife:a man,Man on the outside face,home to come and collect his wife Shua Weifeng,What kind of man!
8.
wife on the bed:we cover the double was it.
Husband:Do not!That the next morning to all wrapped on you.I did cover none.Or build your own bar,and my heart at ease.
Wife:Well,you are yourself cover,until tomorrow morning I still have to be wrapped to go!
9.on the center
wife:I have been in our family center in your home but also to me as the center.
husband:I have been in our family center.
wife:you can be my center of that center than important.
Husband:Why?
Wife:Because I am a daughter,you're just a kid.
10.
wife on the phone:Why do not you call me?!
Husband:falsely accuse!Today is not that a good thing you give me a call.Finally,I waited a day,or I'll call you.
wife:I said,can I changed my mind.Ai-ling said:Women have the privilege to change his mind.
husband:Do you change your mind did not tell me it!
wife:I said,my heart said,Who told you and my heart is not interlinked.
11.
wife and friends on a different surname:I have a boyfriend,you can not interfere with me.
Husband:OK,I have a girlfriend.
Wife:No!
Husband:Why Yes I know I not.
wife:I am a boyfriend,you can not do the others can do,I will not pick your old problems,and is conducive to a happy family .
your girlfriend,I am acting by a small,jealous quarrel with you,is not conducive to family stability.
husband:I have acting by little.
wife:a man,mulberry handbags sale,and woman as acting by a small,loss of nerve to say you!
12.
take things on his wife:the bag you carry it with me.
Husband:I took four bags,and you get nothing,the nerve it?
wife:I was holding it for you!100 kilos you do,I will get something better than what you get heavier.
13.
wife on a walk:walk to a piece of the road we have it.
Husband:too far to get there,now that we can not go back.
Wife:Well,you carry me back.
14.
on the affair his wife:now play the old TV affair,you say,you will have an affair it?
Husband:no.
Wife:Why?
husband:Do you have a regret I had enough,never again to be the second
15.on the streets
Wife:My husband,took to the streets go.
A kinds of situations:
husband:go!
Wife:You see you,that is fun,who are three years old,the play has such a big heart,a little ambition at all.
B kinds of situations:
husband:do not!
Wife:You see you,never with me one day to know the work of the work,who are three years old,and still did not understand life ,do not care about family!
求电机输入脉冲频率三相变频磁阻式步进电动机,转子齿数Z=100,双拍制通电,要求电动机转速为120转每分,求输入脉冲频率
已知某步进电机的参数:相数m=5、齿数m=4,通电方式系数k=1或2.请根据步进电机的工作原理写出其通电顺序
步进电机的相数和拍数和步距角的关系
设数列{an}的前n项和为Sn=2n2,{bn}为等比数列,且a1=b1,b2(a2-a1)=b1.
设数列{an}的前n项和为Sn=2n²{bn}为等比数列,且a1=b1,b2(a2-a1)=b1
excel中:分别有A1,B1两个数,一个公式为=A1+B2,然后我要改动A1或者B1的数值,公式计算结果不变,why?
怎样算电机定转子的片数和功率
步进电机力矩和重力的关系
excel问题,使a1=b1 a2=b1 a3=b2 a4=b2 .实现拖拉的功能,请您给出公式并说明原理,谢谢
已知正数数列{an}的前n项和为Sn,且对任意正整数n满足4Sn=(an+1)^2,且数列b1,b2-b1,b3-b2,
一次函数y1=k1x+b1和y2=k2x+b2的图像如图所示,{函数的图像相交于(1,1.1)}则不等式k1x+b1>k
设数列{an}的前n项和为Sn=2n²,{bn}为等比数列,且a1=b1,b2(a2-a1)=b1,