Below is given a schematic diagram representing a robotic control system with negative feedback.

Identify best matches for each of the letters in the diagram.
1: A
2: B
3: C
4: D
5: E

Question

Below is given a schematic diagram representing a robotic control system with negative feedback.

Identify best matches for each of the letters in the diagram.
1: A
2: B
3: C
4: D
5: E

BlackTom AI · Accepted Answer

Analyzing the schematic, we need to map each letter to the most fitting element from the given options based on typical robotic control loop components.

A: Reference. The leftmost input line labeled A enters the summing junction, representing the desired input or reference signal that the system should follow. In control diagrams, the reference signal is what the controller aims to achieve.

B: Controller. The block labeled B sits between the reference input and the subsequent processing stage. In control systems, the controller processes the reference (and often the error) to generate a control action. Thus B corresponds to the Controller.

C: Robot. After the controller output, the signal goes through another processing block labeled C before reaching the final output. In robotic control schematics, this stage typically represents the plant or the robot itself—the system being controlled that responds to the controller's commands. Therefore C maps to the Robot.

D: Sensors. There is a path from the output E back toward the input through a block labeled D, forming part of the feedback path that measures the system state. In robotics, this block is best described as sensors, which measure the robot’s position (or other states) and feed that information back into the loop. So D corresponds to Sensors.

E: Position. The output line after block C is labeled E, and this signal ultimately represents the measured position (or a similar state) that is fed back through the sensors and into the summing junction. Among the options, Position is the most appropriate description of this final measured state in the schematic.

ENGR10006_2025_SM2 Robotics End-of-module Quiz

Below is given a schematic diagram representing a robotic control system with negative feedback. Identify best matches for each of the letters in the diagram. 1: A 2: B 3: C 4: D 5: E

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