subject: Radio Controller [print this page] Radio controllers also abbreviated as RCRadio controllers also abbreviated as RC. It is such a tool that has the capability to control devices via radio signals. It is used in different field lines like armed forces, researches and industries etc. In the beginning, this structure was developed as electromechanical that is made up of tiny metal chips having a potential to catch different frequencies.
History:
Once upon a time an exhibition was held in Madison Square Garden in which Mr. Tesla introduced a boat with special features that can be controlled through the usage of radio transmitter. It possessed a special device that is proficient to follow instructions given by its creator through a mechanism in which vocal commands are then converted in to certain frequencies. Then this model was used by many scientists. Mr. Tesla was awarded as a US patent on his great invention.
Mechanism:
Its arrangement consists of small sized chips, prepared by metal that grasp different frequencies. An actuator is present on the surface of device. This is controlled by moving the sticks present on the controlling board, it initiate the transmission of frequencies from the transmitter to switch on and off the device. In the advanced radio controllers, different modulators are present that are able to catch more than 20 frequencies.
Applications:
1)In World War II, this concept was used by Germans in the manufacturing of certain arsenal and grenades that follows a projectile motion. They also designed missiles to target the ships of their antagonists. On the other hand, this idea was not that much successful because British forces developed a system that was able to jam their signals.
2)In the beginning of this great invention, use of transistors reduces importance of batteries along with the usage of high voltage. These devices were operated via electromagnetic escapement that utilizes accumulated power in a ring of rubber band.At that time, options were so limited and simple like to on and off the device along with the option of speed control.
3)Then crystal control panel was developed which was really cheap and used in fighting plans. Options of this panel were also limited and control its speed, field and yaw. On the advancement of electronic field, many designs were proved old and unsuccessful especially the concept of single circuit device. Along with this, many concepts and techniques were introduced like servomechanism and PCM. Their concept catches the interest of many scientists although these concepts were ineffective and failed in many ways. Now-a- days 2.4 GH system is popular and triumphant.
4)Radio controller also used in the development of toy cars, dolls, robots, cranes and underground trains. Toy industry widely uses this feature to catch the interest of children.
