6 8 chapter 12 assignment
July 23, 2020
all the instructions is there 36
July 23, 2020

Introduction to Process Control

 

Introduction to Process Control

 

Work the problems below. To receive any credit, you must show all work. You may submit your work in a word processing document or in a pdf file. Graphic files are not acceptable submissions. Your file submission document should be entitled Week1AYourGID (replace YourGID with your specific GID).

 

    1. A sensor has a linear resistance change of 100 to 195 ohms, as temperature changes from 20o – 120oC. Find the I/O relationship.
    2. Using the equation for modeling a 1st order response, find the time it takes for a sensor to reach 90% of it final value given a final sensor output of 4.0V, an initial sensor output of 2.0V, and a time constant = 0.0025/s.
    3. A 1000 ohm resistor is measured 10 times and the following readings were taken in the table below.
      1. Find the mean and standard deviation of the measurements.

 

Test #

Reading

1

1016

2

986

3

981

4

990

5

1011

6

1011

7

997

8

1044

9

991

10

966

 

      1. Assuming a normal distribution, there is a 99.7% probability that the true value of the resistance falls between what two values?
    1. The following unbalanced Wheatstone Bridge is constructed. Calculate the output voltage across points C and D and the value of resistor R4 required to balance the bridge circuit.

 

figure 1

 

    1. Refer to the op amp below (Fig. 2.26 in your text). If Vin = 0.5V, R1 = 10k ohm, and R2 = 25k ohm, calculate:

 

figure 2

 

      1. the output voltage, Vout,
      2. the current in the 10k ohm resistor.
      3. What would be the use or purpose of such a circuit? And how do your results demonstrate that?

 

 

**PLEASE SEE ATTACHMENT**


Introduction to Process Control was first posted on July 23, 2020 at 3:23 pm.
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