Answered: A fluid system has two sensors, a…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Question

A fluid system has two sensors, a pressure sensor and a flow sensor.
The pressure sensor has one output ‘A’ defining two levels: ‘0’ if pressure is low, and ‘1’ if
pressure is high.
The flow sensor has one output ‘B’ defining two levels: ‘0’ if flow is low, and ‘1’ if flow is high.
There is another output ‘C’ defining the command from operator: ‘0’ if less flow is required, and
‘1’ if more flow is required.
The combination of all outputs is used to decide if a pump should be turned on ‘P=1’ if pressure is
low, or if operator command is high and flow is low. Otherwise, the pump should be turned off
‘P=0’. You are assigned the task to design the circuit that makes this decision.

(3-a) Is this an analogue or digital electronic problem? Explain the difference.

(3-b) What is the benefit of using digital circuits for the abovementioned scenario? Explain

(3-e) Draw the circuit diagram for the given scenario, then verify its operation using Multisim.

Activity 3:
A fluid system has two sensors, a pressure sensor and a flow sensor.
The pressure sensor has one output 'A' defining two levels: '0' if pressure is low, and '1' if
pressure is high.
The flow sensor has one output 'B' defining two levels: '0' if flow is low, and '1' if flow is high.
There is another output 'C' defining the command from operator: '0' if less flow is required, and
'1' if more flow is required.
The combination of all outputs is used to decide if a pump should be turned on 'P=1' if pressure is
low, or if operator command is high and flow is low. Otherwise, the pump should be turned off
'P=0'. You are assigned the task to design the circuit that makes this decision.
(3-a) Is this an analogue or digital electronic problem? Explain the difference.
(3-b) What is the benefit of using digital circuits for the abovementioned scenario? Explain.
(3-c) Apply your knowledge of Boolean logic to form the truth table.
(3-d) Write down the sum-of-products expression that represents the output.
(3-e) Draw the circuit diagram for the given scenario, then verify its operation using Multisim.
(3-f) Compare the output of your circuit 'P' to the output of the circuit below 'F' by comparing
truth tables. Build the circuit below in the laboratory to validate your truth table. Show
photos of your setup and signal displays.
B
F

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