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Conversion Editor

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Using the equation of a straight line: y = mx b. Meaning: equals. 1. Independent variable ... Edit Degrees F, and Input Correction. Incorrect conversion, so ' ... – PowerPoint PPT presentation

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Title: Conversion Editor


1
Conversion Editor
  • U.S. Nuclear Regulatory Commission
  • Rockville, Maryland
  • Pacific Northwest National Laboratory
  • November 15-17, 2005

2
(Units) Conversion Editor
3
To Existing Measures,Edit Existing Unit
Conversions andAdd New Unit Conversions
4
(Units) Conversion Editor
A Green text box identifies user-defined input
5
Example 1
Define the new Unit ft (for feet) as a function
of the Base Unit m (for meters) ft
independent variable m dependent variable y
ft 3.2802 (x m)
Factors
ft
Unit
Using the equation of a straight line y mx b
Slope
Y-Int
Unit
Base Unit
Base Unit Value
Unit Value
3.2808
3.2808
0
m
ft
1


Meaning
equals
1
m
ft
3.2808
6
Example 2
Define the new Unit F as a function of the Base
Unit C C independent variable F dependent
variable y F 1.8 (x C) 32
Factors
F
Unit
Using the equation of a straight line y mx b
Slope
Y-Int
Unit
Base Unit
Base Unit Value
Unit Value
212
1.8
32
C
F
100


Meaning
equals
1
C
F
33.88
7
Edit Degrees F, and Input Correction
Incorrect conversion, so Edit
8
There are 33.8 F to one C
User-defined
F 9/5 C 32
9
Example 3
Define the new Unit nm (for nanometers) as a
function of the Base Unit cm (for
centimeters) cm independent variable nm
dependent variable y nm 107 (x cm)
Factors
nm
Unit
Using the equation of a straight line y mx b
Slope
Y-Int
Unit
Base Unit
Base Unit Value
Unit Value
1.0E07
1.0E07
0
cm
nm
1


Meaning
equals
1
cm
nm
1.0E07
10
Add the Conversion nm
11
There are 107 nm to one cm
User-defined
12
Example 4
Define the new Unit K as a function of the Base
Unit C C independent variable K dependent
variable y K x C 273
Factors
K
Unit
Using the equation of a straight line y mx b
Slope
Y-Int
Unit
Base Unit
Base Unit Value
Unit Value
274
1
273
C
K
1


Meaning
equals
1
C
K
274
13
Add the Conversion degrees Kelvin K
14
There are 274 K to one C
User-defined
K C 273
15
Add New Measures (e.g., Energy)andUnit
Conversions (e.g., Joules, Calories, etc.)
16
Example 5 Add the Measure of Energy
Add Energy
17
Add a Measure of Energy with a Base Unit of
Joules
18
Add Units of Calories cal
19
1 cal 4.184 J or 1 J 0.239 cal
20
ProblemAdd the following Energy Units
  • 1 J 0.239 cal 6.238E18eV 9.869E-03 lit-atm
  • 0.738 ft-lbs 9.483E-4 BTU
  • 1 cal 4.184 J 2.61E19 eV 4.129E-2 lit-atm
  • 1 BTU 778.3 ft-lbs 1054.5 J
  • 1 BTU equals how many calories?

21
Relationship Between BTU and Joules
1 BTU 1054.5 J or 1 J 9.48317E-4 BTU
Note the difference in significant figures
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