Control Systems Engineering
Control Systems Engineering
7th Edition
ISBN: 9781118170519
Author: Norman S. Nise
Publisher: WILEY
bartleby

Concept explainers

bartleby

Videos

Textbook Question
Book Icon
Chapter 1, Problem 9P

The human eye has a biological control system that varies the pupil diameter to mamtain constant light intensity to the retina. As the light intensity increases, the optical nerve sends a signal to the brain, which commands internal eye muscles to decrease the pupil's eye diameter. When the light intensity decreases, the pupil diameter increases.

  1. Draw a functional block diagram of the light-pupil system indicating the input, output, and intermediate signals; the sensor, the controller; and the actuator. (Section 1.4: Introduction to a Case Study]
  2. Under normal conditions the incident light will be larger than the pupil. If the incident light is smaller than the diameter of the pupil, the feedback path is broken (Beehhoefer. 2005). Modify your block diagram from Part a. to show where the loop is broken. What will happen if the narrow beam of light varies in intensity, such as in a sinusoidal fashion?
  3. It has been found (Bechhuefer. 2005) that it takes the pupil about 300 milliseconds to react to achongc in the incident light. If light shines off center to the retina, describe the response of the pupil with delay present and then without delay present

Blurred answer
Students have asked these similar questions
For a 1-degree-of-freedom robot arm, it is needed to use a DC motor. Draw a blockdiagram for a mechatronic system that controls the position of this robotic arm forgripping objects. Suggest a sensor system and clarify the flow and nature of signals inyour block diagram.
Design and develop a suitable processor-based Data Acquisition (DAQ) system and external hardware to interface, measure, display and store the responses from the selected sensors.
Don't use chatgpt will upvote

Chapter 1 Solutions

Control Systems Engineering

Knowledge Booster
Background pattern image
Mechanical Engineering
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Text book image
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Text book image
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Text book image
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Text book image
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Text book image
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
The Robot Revolution: The New Age of Manufacturing | Moving Upstream; Author: Wall Street Journal;https://www.youtube.com/watch?v=HX6M4QunVmA;License: Standard Youtube License