Understanding Motor Controls
4th Edition
ISBN: 9781337798686
Author: Stephen L. Herman
Publisher: Delmar Cengage Learning
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Chapter 54, Problem 7RQ
Name two effects of negative feedback.
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One of the disadvantage of negative feedback loop is lag caused because it can only be exerted after controlled variable has been disturbed. In order to minimize lag between a change in a controlled variable and the action of the effector, it is advantageous for the body to anticipate any likely change. Which one of the following physiological mechanism achieves this?
Select one:
a. Feedbackward control
b. Feedforward control
c.Positive feedback control
d. All of the above
e. None of the above
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Chapter 54 Solutions
Understanding Motor Controls
Ch. 54 - Prob. 1RQCh. 54 - Prob. 2RQCh. 54 - Prob. 3RQCh. 54 - Prob. 4RQCh. 54 - Prob. 5RQCh. 54 - Prob. 6RQCh. 54 - Name two effects of negative feedback.Ch. 54 - Refer to Figure 548. If resistor R1 is 200 ohms...Ch. 54 - Refer to Figure 54–9. If resistor R1 is 470 ohms...Ch. 54 - What is the purpose of the hysteresis loop when...
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- 1. Give an example of open loop and closed loop system (one example each). Also state the input, control system, feedback and output parameter. Example. 1. Open Loop - Water Heater: Input - Water Temperature (Cold) System - Heating Element Output - Water Temperature (Hot) 2. Closed Loop - Air-conditioning System Input - Desired Room Temperature Control - Motor controller/Compressor/ACU Feedback - Temperature Sensing Output - Room Temperaturearrow_forward2.Can an open-loop mechanism be studied as a closed-loop mechanism? Clearly state How and give an example?arrow_forward(2) Described the advantages of feedback control. And what are the potential drawbacks of feedback?arrow_forward
- LESSON is Transfer Function: Mechanical System - Rotational Movement SUBJECT: FEEDBACK CONTROL SYSTEM Box the final answerarrow_forwarda)is the aircraft stable about the equilibrium represented by the transfer function? b) Using proportional feedback,what is the range of acceptable gains for the closed loop systen to be stable? c) Design a feedback control system that allows the pilot to command a pitch angle with overshoot less than or equal to 4.15% and a natural frequency of greater than or equal to 0.99 rad/s d) Design a feedback control system that allows the pilot to command a pitch angle with the same overshoot and a natural frequency of one half the system in part c.arrow_forwardDescribe the integration method?arrow_forward
- Give a physical example for feedback control systems. Sketch the block diagram with input and output variables: Missile launch systemarrow_forwardDefine CFD and discuss the main steps of its solution procedure in your own words.arrow_forwardIdentify the following elements of the given closed loop control system.(i) Process Element(ii) Feedback Element (iii) Control Element (iv) Correction Elementarrow_forward
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Understanding Motor ControlsMechanical EngineeringISBN:9781337798686Author:Stephen L. HermanPublisher:Delmar Cengage Learning
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