Uses of sensors in Robotics

The sensors are one of the useful technologies, which play a vital role in the robotics field. There are four important categories where uses of sensors are highly required in robotics such as:

  • Safety monitoring
  • Interlocking in work cell control
  • Quality control in work part inspection
  • Data collection of objects in the robot work cell

Safety monitoring:

The sensors are extremely used in industrial robotics for monitoring the hazardous and safety conditions in the robot cell layout. This certainly helps in avoiding the physical injuries and other damages caused to the human workers.

Interlocking in work cell control:

In robot work cell, the series of activities of different equipments are controlled by using interlocks. Here, sensors are employed for verifying the conclusion of the current work cycle before progressing to the next cycle.

Quality control in work part inspection:

In olden days, the quality control was performed with a manual inspection system. Nowadays, sensors are employed in the inspection process for determining the quality features of a work part automatically. A major advantage of using sensors in this category provides high accurate results. One disadvantage in this automatic inspection is that the sensors are only able to examine a limited variety of work part features and faults.

Data collection of objects in the robot work cell:

Sensors are used in this category to determine the position or other related data about the fixtures, work parts, equipment, human workers, and so on. Apart from sensing the position, it is also implemented to find out the other information like work part’s color, orientation, size, shape, etc. The key reasons for determining the above information while executing a robot program includes:

  • Recognition of work parts
  • Random position and orientation of work parts
  • Improved accuracy of robot position using the feedback data

The sensors incorporated in the above four categories will require a component in the control system for accomplishing the specified control tasks. This component is a part of a larger control system called as a work cell control system.

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