Servo: a heart of the robot?
Robots make us cry with excitement and worry about their impact on the future, but we sure admire the technology that brought it to live. So, what exactly does make it work?
Robots are brilliant
Robotics is a fast-growing industry and although some people may consider robots as something fun and chaotic made for entertainment purposes, in reality, most of the tasks they are needed for are monotonous and precise. Robots are mainly needed where speed and accuracy are vital and many endless repetitive tasks to perform. They are found in factories, in hospitals, in mines, deep underwater, performing dangerous maintenance in hazardous conditions, disarming bombs and on space missions. And they are definitely on the way to our homes!
The power of servo-motors
Motors come in different sizes and with different capacities: AC, brushed DC, brushless AC motor, geared DC, servo, stepper motor and DC linear actuator. But we are going to highlight only one of them.
Servo is a useful thing that has been around for some time. Being small and energy efficient their application varies broadly. It has been used across different industries for all sorts of items: automatic doors, printers, drones, etc. A robotic servo is merely a smaller motor that can measure electromotive force and a control circuit. It sends signals from the drive to motion control and back, making and holding precise positions.
Servo-motors in robotics
One of the greatest things about servos is that they can work in the harshest of environments, very much like robots they control. Robots are often exposed to temperature changes, and high-pressure washing making the hardest of tasks instead of much more humans. Realistically, they also have a much longer operating lifespan. This will particularly come in handy in space applications such as planetary rovers. By the way, robots must take measurements and samples with extreme precision and they do so controled by a suitable motor.
Manufacturers value servos for their high-rate repetition and ability to maintain precision at any point of production. Servo motors have become trustworthy and long-lasting solutions for many businessmen, who decided to undergo automation.
Although servos are considered the best, some of the other motors are also being commonly used in robotics:
- DC/AC motors
- Stepper motors
- Heavy duty DC motors
Making robots smarter with servos
Unlike humans, autonomous robotic systems are often failing to recognise and properly respond to changes in motor performance. Unless a robot is programmed to act depending on feedback from the motor, it is working blindly to the environment and doesn’t adjust power if the motor performs unexpectedly. Servos are the answer to this problem: it responds to motor feedback automatically adjusting power to compensate for unusual motor performance. Like this, servo drives ensure the smooth and consistent motor performance.
A precious invention
Thanks to servos, robots are maintaining their standards of speed and precision, which overall helps the production to fasten up and us to concentrate on more creative and valuable tasks! Isn’t it great to be able to focus all your energy on engineering profitable strategies to reach your company’s targets and send all the routine sorting and dangerous soldering robot’s way. With servos, you can make it work!