apologies

I am really sorry for not being able to post in the past couple of days as i was pre occupied with my studies...will post something this evening..

A teacher's words

Winners take time to relish their work,knowing that scaling the mountain is what makes the view from the to so exhilarating.......

Fun Info: Section 1: ROBOTICS

As I promised, I will be posting some brief and precisely important information that every robotics enthusiast must and should be aware of. To understand this art ( i call this art rather than science as it brings out one's imagination and scope of view by means of creation of a device that can be put into some judicious use) one must be aware of what motors, actuators, sensors,printed circuit boards,breadboards, resistors, capacitors,timers,voltage convertors......etc. actually are.
I wont be confusing the reader with any more of these words because i believe in imparting information in a step by step and concise manner so that the budding enthusiast does not actually lose interest in this process of slow and gradual learning.

But as a learning prerequisite i would first like to ask the reader to clear the image of what a robot is...(many of us assume robots as biped walking machines..humanoids etc. which is not fully correct).
Here, we will be starting from the scratch and progressing as we move on.....

ok ...so lets begin....

ACTUATORS

Actuators are the muscles of a robot, the parts that move a robot.There are various types of actuators . We will, however restrict our discussion here to the most basic and most widespread type of actuators-The Electric Motors.

Though we have a wide variety of motors available for use , we mostly use three main types of motors in constructing a crude or a preliminary robot.

the DC motor,Servo motor and the Stepper motor.

The DC motor:

They are the most widely used type of motors and are the easiest to understand and handle.

many of you might have observed a motor in a toy car that rotates continuously in one direction.

A DC motor is rated in terms of voltage,current,rpm(rotations per minute) and torque(kg-cm).Typical DC motors are rated from about 6v to 12v, 500mA to 1000mA.

Torque is the maximum weight a motor can draw through a 1 cm pulley.There is no polarity(positive or negative terminal) for a DC motor.If we apply a voltage to its terminals ,it spins...if we interchange the terminals, it spins in the opposite direction.

The Servo motor:

These motors are basically DC motors that can run on very low values of current but can give a high torque output.

They generally operate at 4-6volts.

The Stepper motor:

As the name suggests ..these motors are not free to rotate randomly like DC motors.

Their rotation is a collection of discrete "steps' that are under command from a microcontroller.

They have several advantages over the DC motors at several places of use.. for instance ..if you want to move the arm of a humanoid through an angle of 60 degrees it will not be possible using the DC motor as we can not control it in the course of its cycle.

Here , we are rescued by the stepper motor that can make the turn possible according to a set of predefined commands.

for a further reading on these three types of motors ..i wold like the viewers to have a brief browsing session through wikipedia.

In the next post i will deal with the circuit part of a robot i.e. the electronics related to the basics of Robotics.

***i will be editting this post and adding information here itself..in this very post..
suggestions are duly welcome
diabolic.arnav@gmail.com***

Thought for the day

"Nothing is a waste of time if you use the experience wisely."
Auguste Rodin

Hello World....A new day has come...

"I think I've discovered the secret of life - you just hang around until you get used to it."
Charles M. Schulz

now that was correctly said....we all just hang around trying to adjust our lives according to us...but then ,In the end,its life that moulds us into what we become....its just our life that differentiates between what we are and what we could have been.......

Thought for the day

Imagination is more important than knowledge. For knowledge is limited to all we now know and understand, while imagination embraces the entire world, and all there ever will be to know and understand.

-Albert Einstein

Fun Info

Being in a fraternity of Engineers, I have decided to post something technical too. I really don't want to disappoint the part of me that claims to be an Electrical and Electronics engineer in process....

The fact is that i really do not have much knowledge in any field.Robotics has ,however, interested me for quite sometime so i have decided to post some matter related to intermediate robotics .I have learnt much of this stuff from my seniors Ankur Agrawal, a third year ,Mechanical Engineering student at IIT Kanpur, and P.Shashank and S Shan Mohan both third year B.E.(hons) students at the Electrical and Electronics Engineering Department at BITS,Pilani.

hope you all enjoy this ..

:)

The sun rises again... Good morning ..

I got this while browsing for a few catchy quotes...

this one was certainly an eye catcher...

The ease with which we justify to ourselves,our reasons to hate someone without even thinking what "hate" is... really surprises me...

A friend of mine says that she is a strong believer of the newton's third law.. "every action has an equal and opposite reaction"...

apply that law to life..for one shall only be gifted with whatever one puts into life.

Thought for the day

"The longest journey of a person is the journey inwards"

-Dag Hammarskjold