What is servomechanism

When the coded signal changes then the angular position of the servo shaft changes. It can be called as a closed-loop self-correcting control system, it usually contains some mechanism such as motor, like when motor runs it controls some other mechanism. If the device moves in the wrong direction or in the wrong angle an error voltage or an error angular is produced then the error signal are matched and compared with the reference signal and are supplied to activate the servo.

Input transducer will convert the angular movement into a demand voltage which is then amplified and the amplified voltage drives the motor which turns the output shaft connected to a load. Major problems of this configuration is that there is no way to ensure that the output is following changes of the input and the output voltage will vary as the gain of the amplifier alters with time and temperature and because of these problems open-loop control is not good enough for close tolerance control and more control is achieved by closed-loop system.

Servomechanism control system Uses of servomechanism Positioning servomechanisms were first used in military fire and marine navigation equipment. It is also used in automatic machine tools, satellite-tracking antennas, remote control airplanes, automatic navigation system on boats and planes.

Many autofocus camera also use a servomechanism to accurately move the lens, and thus adjust the focus. Advantages of Servo control system Highest torque Higher speed Control speed Speed is proportional to the applied voltage Disadvantages of Servo control system More complex High cost for feedback use Maintenance difficult Tuning is required Future trades Due to increase of Automation and development of new application of Servo system it has a high scope in future.

Due to price reductions there is a beneficial effect on growth of Servo system in future. Due to continuous technology improvement in this electronic device system it has a high scope in future.

The serve drives sector is benefiting from the popularity of intelligent drives that combine drive and controller capabilities, which leading it towards high growth.

Summary Servo control system reduces the error of the system and improves the output mechanism. Due to blocking of error, the efficiency of the device increases. It is easier to design and implement. It can operate on both AC and DC. United Arab Emirates. United Kingdom. Vatican City. Wallis and Futuna Islands. West Sahara. Save changes.

Your account. In your shopping cart. Log in to view the shopping cart. Log in. Go to Articles See all products in this category: Robotics and Prototyping. The construction of the servo mechanism depends on its specificity, parameters and purpose, however, in general, it consists of: a DC motor, a potentiometer, a gearbox, a motor shaft position electronic control system, an enclosure. The key parameters of servos are: torque and rotational speed, overload operating time, torque to inertia ratio, resolution, frequency response, dimensions, interfaces, network solutions.

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Anuluj OK. See more words from the same year. Accessed 12 Nov. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Log in Sign Up. Save Word. Definition of servomechanism. First Known Use of servomechanism , in the meaning defined above.