Thursday 3 December 2015
Friday 27 November 2015
servo motor pictures
The motor is paired with some type of encoder to provide position and speed feedback. In the simplest case, only the position is measured. The measured position of the output is compared to the command position, the external input to the controller. If the output position differs from that required, an error signal is generated which then causes the motor to rotate in either direction, as needed to bring the output shaft to the appropriate position. As the positions approach, the error signal reduces to zero and the motor stops.
The very simplest servomotors use position-only sensing via a potentiometer and bang-bang control of their motor; the motor always rotates at full speed (or is stopped). This type of servomotor is not widely used in industrial motion control, but it forms the basis of the simple and cheap servos used for radio-controlled models.
More sophisticated servomotors measure both the position and also the speed of the output shaft. They may also control the speed of their motor, rather than always running at full speed. Both of these enhancements, usually in combination with a PID control algorithm, allow the servomotor to be brought to its commanded position more quickly and more precisely, with less overshooting.
last words by steve jobs 2222
The last words of Steve Jobs -
I’ve reached the peak of success in the business world.
In the eyes of others my life has been the symbol of success.
However, apart from the job, I have a little joy. In the end, the wealth is just a fact to which I’m used to it.
At this time, lying on the hospital bed and remembering my whole life, I realize that all the awards and the wealth of which I was so proud, have become insignificant in front of the imminent death.
I’ve reached the peak of success in the business world.
In the eyes of others my life has been the symbol of success.
However, apart from the job, I have a little joy. In the end, the wealth is just a fact to which I’m used to it.
At this time, lying on the hospital bed and remembering my whole life, I realize that all the awards and the wealth of which I was so proud, have become insignificant in front of the imminent death.
In the dark, when I look at the green lights of machinery for artificial respiration and I hear the hum of their mechanical sounds, I can feel the breath of death that is coming…
Just now I realized, once that accumulate enough money for the rest of your life, we have to pursue other objectives that are not related to the wealth.
It should be something more important:
For example, the stories of love, the art, the dreams of when I was a kid…
Don’t stop to pursue the wealth will only turn a person in a be twisted, just like me.
God has given us the senses to make us feel the love in the heart of each one of us, not the illusions built by the fame.
Just now I realized, once that accumulate enough money for the rest of your life, we have to pursue other objectives that are not related to the wealth.
It should be something more important:
For example, the stories of love, the art, the dreams of when I was a kid…
Don’t stop to pursue the wealth will only turn a person in a be twisted, just like me.
God has given us the senses to make us feel the love in the heart of each one of us, not the illusions built by the fame.
The money that I earned in my life I can bring them with me.
What can I bring with me I’m just the memories strengthened by love.
This is the real wealth that will follow you, take you, will give you the strength and the light to go forward.
Love can travel for a thousand miles. Life has no limit. Go where you want to go. You reach the quotes that you want to reach. It’s all in your heart and in your hands.
What is the bed more expensive in the world? The hospital bed.
You can hire someone to drive the car for you, that you gain for you, but you can’t have someone you don’t mind the disease in your place.
The material things lost can be found. But there is one thing that can never be found when you lose: the life.
What can I bring with me I’m just the memories strengthened by love.
This is the real wealth that will follow you, take you, will give you the strength and the light to go forward.
Love can travel for a thousand miles. Life has no limit. Go where you want to go. You reach the quotes that you want to reach. It’s all in your heart and in your hands.
What is the bed more expensive in the world? The hospital bed.
You can hire someone to drive the car for you, that you gain for you, but you can’t have someone you don’t mind the disease in your place.
The material things lost can be found. But there is one thing that can never be found when you lose: the life.
At any stage of life we are in this moment, in the end we will have to deal with the day that it’s curtains.
Do treasure of love for your family, the love for your spouse, of love for your friends…
Trattatevi well. Take good care of the next.
Do treasure of love for your family, the love for your spouse, of love for your friends…
Trattatevi well. Take good care of the next.
motivational story by good human being.
My request is that pls read this and get your children also to read it.
One young man went to apply for a managerial position in a big company.
He passed the initial interview, and now would meet the director for the final interview.
The director discovered from his CV that the youth’s academic achievements were excellent.
He asked, Did you obtain any scholarships in school…?
the youth answered “NO”.
Who paid for your school fees…?
” Parents “, he replied.
“Where did they work……?”
“They worked as clothes cleaner.”
The director requested the youth to show his hands.
The youth showed a pair of hands that were smooth and perfect.
“Have you ever helped your parents wash the clothes ?”
“Never, my parents always wanted me to study and read more books.
Besides, my parents can wash clothes faster than me.
The director said, “I have a request.
When you go home today, go and clean your parents hands, and then see me tomorrow morning.
The youth felt dejected.
When he went back home, he asked his parents to let him clean their hands.
His parents felt strange, happy but with mixed feelings,
They showed their hands to their son.
The youth cleaned their hands slowly.
His tear fell as he did that.
It was the first time he noticed that his parents hands were so wrinkled, and there were so many bruises in their hands.
Some bruises were so painful that they winced when he touched it.
This was the first time the youth realized that it was this pair of hands that washed the clothes everyday to enable him to pay the school fees.
The bruises in the hands were the price that the parents had to pay for his education, his school activities and his future.
After cleaning his parents hands, the youth quietly washed all the remaining clothes for them.
That night, parents and son talked for a very long time.
Next morning, the youth went to the director’s office.
The Director noticed the tears in the youth’s eyes, when he asked:
“Can you tell me what have you done and learned yesterday in your house….?”
The youth answered,
I cleaned my parents hand, and also finished cleaning all the remaining clothes’
“I now know what appreciation is.
Without my parents, I would not be who I am today…
By helping my parents, only now do I realize how difficult and tough it is to get something done on your own And I have come to appreciate the importance and value of helping one’s family.
The director said,
“This is what I am looking for in a manager.
I want to recruit a person who can appreciate the help of others, a person who knows the sufferings of others to get things done, and a person who would not put money as his only goal in life.”
“You are hired.”
A child, who has been protected and habitually given whatever he wanted, would develop an “entitlement mentality” and would always put himself first.
He would be ignorant of his parent’s efforts.
One young man went to apply for a managerial position in a big company.
He passed the initial interview, and now would meet the director for the final interview.
The director discovered from his CV that the youth’s academic achievements were excellent.
He asked, Did you obtain any scholarships in school…?
the youth answered “NO”.
Who paid for your school fees…?
” Parents “, he replied.
“Where did they work……?”
“They worked as clothes cleaner.”
The director requested the youth to show his hands.
The youth showed a pair of hands that were smooth and perfect.
“Have you ever helped your parents wash the clothes ?”
“Never, my parents always wanted me to study and read more books.
Besides, my parents can wash clothes faster than me.
The director said, “I have a request.
When you go home today, go and clean your parents hands, and then see me tomorrow morning.
The youth felt dejected.
When he went back home, he asked his parents to let him clean their hands.
His parents felt strange, happy but with mixed feelings,
They showed their hands to their son.
The youth cleaned their hands slowly.
His tear fell as he did that.
It was the first time he noticed that his parents hands were so wrinkled, and there were so many bruises in their hands.
Some bruises were so painful that they winced when he touched it.
This was the first time the youth realized that it was this pair of hands that washed the clothes everyday to enable him to pay the school fees.
The bruises in the hands were the price that the parents had to pay for his education, his school activities and his future.
After cleaning his parents hands, the youth quietly washed all the remaining clothes for them.
That night, parents and son talked for a very long time.
Next morning, the youth went to the director’s office.
The Director noticed the tears in the youth’s eyes, when he asked:
“Can you tell me what have you done and learned yesterday in your house….?”
The youth answered,
I cleaned my parents hand, and also finished cleaning all the remaining clothes’
“I now know what appreciation is.
Without my parents, I would not be who I am today…
By helping my parents, only now do I realize how difficult and tough it is to get something done on your own And I have come to appreciate the importance and value of helping one’s family.
The director said,
“This is what I am looking for in a manager.
I want to recruit a person who can appreciate the help of others, a person who knows the sufferings of others to get things done, and a person who would not put money as his only goal in life.”
“You are hired.”
A child, who has been protected and habitually given whatever he wanted, would develop an “entitlement mentality” and would always put himself first.
He would be ignorant of his parent’s efforts.
Monday 23 November 2015
Friday 20 November 2015
Thursday 19 November 2015
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