Difference between revisions of "Data collection"

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(→‎Device Dimensions)
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==Device Dimensions==
 
==Device Dimensions==
  
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{| style="width: 100%"
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|-
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|valign=top|
 
{| class="wikitable" style="float:left"
 
{| class="wikitable" style="float:left"
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|+ Coil
+
|+ Coil 1
 
|-
 
|-
 
!width=200| Wire type
 
!width=200| Wire type
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|-
 
|-
 
! Coil gauge
 
! Coil gauge
−
|width=200|  
+
|
 
|-
 
|-
 
! Wire length
 
! Wire length
 +
|
 +
|-
 +
! Number of turns
 +
|
 +
|}
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{| class="wikitable"
 +
|+ Coil 2
 +
|-
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!width=200| Wire type
 
|width=200|  
 
|width=200|  
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|-
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! Rated temperature
 +
|
 +
|-
 +
! Coil gauge
 +
|
 +
|-
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! Wire length
 +
|
 
|-
 
|-
 
! Number of turns
 
! Number of turns
 +
|
 +
|}
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|-
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|
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{| class="wikitable" style="float: left;"
 +
|+ Magnets (Group 1)
 +
|-
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!width=200| Magnet material
 
|width=200|  
 
|width=200|  
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|-
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! Magnet grade
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|
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|-
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! Pole width 1 (if rectangular)
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|
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|-
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! Pole width 2 (if rectangular)
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|
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|-
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! Pole diameter (if circular)
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|
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|-
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! Length along magnetization
 +
|
 
|}
 
|}
−
{| class="wikitable"
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{| class="wikitable" style="float: left;"
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|+ Magnets (Group 2)
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|-
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!width=200| Magnet material
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|width=200|
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|-
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! Magnet grade
 +
|
 +
|-
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! Pole width 1 (if rectangular)
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|
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|-
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! Pole width 2 (if rectangular)
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|
 +
|-
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! Pole diameter (if circular)
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|
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|-
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! Length along magnetization
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|
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|}
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|-
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|
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{| class="wikitable" style="float:left"
 
|+ Shaft
 
|+ Shaft
 
|-
 
|-
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|-
 
|-
 
! Diameter
 
! Diameter
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|width=200|  
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|
 
|-
 
|-
 
! Alloy
 
! Alloy
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|width=200|  
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|
 
|-
 
|-
 
! Threaded (Y or N)
 
! Threaded (Y or N)
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|width=200|  
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|
 
|-
 
|-
 
! Pitch
 
! Pitch
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|
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|}
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{| class="wikitable"
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|+ Fan
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|-
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!width=200| Diameter
 
|width=200|  
 
|width=200|  
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|-
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! Pitch
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|
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|-
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! Number of Blades
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|
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|-
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! Material
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|
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|-
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! Typical use
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|
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|}
 
|}
 
|}
  
 
==Measurements==
 
==Measurements==
−
<center>
 
 
{| style="width: 100%"
 
{| style="width: 100%"
 
|-
 
|-
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!width=100 valign=top|<br>Time<br>''{{nobr|HH:MM AM/PM}}''
 
!width=100 valign=top|<br>Time<br>''{{nobr|HH:MM AM/PM}}''
 
!width=100 valign=top|<br>Current<br>''Amps''
 
!width=100 valign=top|<br>Current<br>''Amps''
 +
!width=100 valign=top|<br>{{nobr|Rotation Speed}}<br>''RPM''
 
!width=100 valign=top|<br>{{nobr|Air speed}}<br>''{{nobr|□ __/ s □ __/ h}}''
 
!width=100 valign=top|<br>{{nobr|Air speed}}<br>''{{nobr|□ __/ s □ __/ h}}''
−
!width=100 valign=top|<br>{{nobr|Air Temp.}}<br>''{{nobr|□ °C □ °F}}''
+
!width=100 valign=top|<br>{{nobr|Air Temps. (4 Max)}}<br>''{{nobr|□ °C □ °F}}''
−
!width=100 valign=top|<br>{{nobr|Coil Temp.}}<br>''{{nobr|□ °C □ °F}}''
+
!width=100 valign=top|<br>{{nobr|Coil Temps. (2 per coil)}}<br>''{{nobr|□ °C □ °F}}''
−
!width=100 valign=top|<br>{{nobr|Rotation Speed}}<br>''RPM''
+
 
|-
 
|-
 
!____:____  __M
 
!____:____  __M
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| Not running
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|
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| Not running
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| Not running
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|
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| {{nobr|____ ____ ____ ____}}
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|
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| ____ _____<nowiki> | </nowiki>_____ ____
 
|-
 
|-
 
!____:____  __M
 
!____:____  __M
−
|
+
| Not running
−
|
+
| Not running
−
|
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| Not running
−
|
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| {{nobr|____ ____ ____ ____}}
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| ____ _____<nowiki> | </nowiki>_____ ____
 
|-
 
|-
 
!____:____  __M
 
!____:____  __M
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|
 
|
 
|
 
|
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| {{nobr|____ ____ ____ ____}}
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| ____ _____<nowiki> | </nowiki>_____ ____
 
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|-
 
!____:____  __M
 
!____:____  __M
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|
 
|
 
|
 
|
−
|
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| {{nobr|____ ____ ____ ____}}
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| ____ _____<nowiki> | </nowiki>_____ ____
 
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|-
 
!____:____  __M
 
!____:____  __M
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|
 
|
 
|
 
|
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| {{nobr|____ ____ ____ ____}}
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| ____ _____<nowiki> | </nowiki>_____ ____
 
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|-
 
!____:____  __M
 
!____:____  __M
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|
 
|
 
|
 
|
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| {{nobr|____ ____ ____ ____}}
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| ____ _____<nowiki> | </nowiki>_____ ____
 
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!____:____  __M
 
!____:____  __M
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|
 
|
 
|
 
|
−
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| {{nobr|____ ____ ____ ____}}
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| ____ _____<nowiki> | </nowiki>_____ ____
 
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|-
 
!____:____  __M
 
!____:____  __M
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|
 
|
 
|
 
|
−
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| {{nobr|____ ____ ____ ____}}
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| ____ _____<nowiki> | </nowiki>_____ ____
 
|-
 
|-
 
!____:____  __M
 
!____:____  __M
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|
 
|
 
|
 
|
−
|
+
| {{nobr|____ ____ ____ ____}}
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| ____ _____<nowiki> | </nowiki>_____ ____
 
|-
 
|-
 
!____:____  __M
 
!____:____  __M
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|
 
|
 
|
 
|
−
|
+
| {{nobr|____ ____ ____ ____}}
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| ____ _____<nowiki> | </nowiki>_____ ____
 
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|-
 
!____:____  __M
 
!____:____  __M
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|
 
|
 
|
 
|
−
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+
| {{nobr|____ ____ ____ ____}}
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| ____ _____<nowiki> | </nowiki>_____ ____
 
|-
 
|-
 
!____:____  __M
 
!____:____  __M
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|
 
|
 
|
 
|
−
|
+
| {{nobr|____ ____ ____ ____}}
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| ____ _____<nowiki> | </nowiki>_____ ____
 
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|-
 
!____:____  __M
 
!____:____  __M
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|
 
|
 
|
 
|
−
|
+
| {{nobr|____ ____ ____ ____}}
−
|
+
| ____ _____<nowiki> | </nowiki>_____ ____
 
|-
 
|-
 
!____:____  __M
 
!____:____  __M
−
|
+
| Not running
−
|
+
| Not running
−
|
+
| Not running
−
|
+
| {{nobr|____ ____ ____ ____}}
−
|
+
| ____ _____<nowiki> | </nowiki>_____ ____
 
|-
 
|-
 
!____:____  __M
 
!____:____  __M
−
|
+
| Not running
−
|
+
| Not running
−
|
+
| Not running
−
|
+
| {{nobr|____ ____ ____ ____}}
−
|
+
| ____ _____<nowiki> | </nowiki>_____ ____
 
|}
 
|}
 
|}
 
|}
−
</center>
 
  
 
==Unit Conversions==
 
==Unit Conversions==

Revision as of 09:01, 25 April 2016

Device Dimensions

Coil 1
Wire type
Rated temperature
Coil gauge
Wire length
Number of turns
Coil 2
Wire type
Rated temperature
Coil gauge
Wire length
Number of turns
Magnets (Group 1)
Magnet material
Magnet grade
Pole width 1 (if rectangular)
Pole width 2 (if rectangular)
Pole diameter (if circular)
Length along magnetization
Magnets (Group 2)
Magnet material
Magnet grade
Pole width 1 (if rectangular)
Pole width 2 (if rectangular)
Pole diameter (if circular)
Length along magnetization
Shaft
Length
Diameter
Alloy
Threaded (Y or N)
Pitch
Fan
Diameter
Pitch
Number of Blades
Material
Typical use

Measurements

Pre-run testing on ___ /___ / 20___

Rotational speed
□ Tachometer used
Induced AC voltage
□ Root mean square
0 RPS = 0 RPM
1 RPS = 60 RPM
2 RPS = 120 RPM
3 RPS = 180 RPM
4 RPS = 240 RPM
5 RPS = 300 RPM
6 RPS = 360 RPM
7 RPS = 420 RPM
8 RPS = 480 RPM
9 RPS = 540 RPM
10 RPS = 600 RPM
__ RPS = ___ RPM
__ RPS = ___ RPM
__ RPS = ___ RPM
__ RPS = ___ RPM
Test run on ___ /___ / 20___

Time
HH:MM AM/PM
Current
Amps
Rotation Speed
RPM
Air speed
□ __/ s □ __/ h
Air Temps. (4 Max)
□ °C □ °F
Coil Temps. (2 per coil)
□ °C □ °F
____:____ __M Not running Not running Not running ____ ____ ____ ____ ____ _____ | _____ ____
____:____ __M Not running Not running Not running ____ ____ ____ ____ ____ _____ | _____ ____
____:____ __M ____ ____ ____ ____ ____ _____ | _____ ____
____:____ __M ____ ____ ____ ____ ____ _____ | _____ ____
____:____ __M ____ ____ ____ ____ ____ _____ | _____ ____
____:____ __M ____ ____ ____ ____ ____ _____ | _____ ____
____:____ __M ____ ____ ____ ____ ____ _____ | _____ ____
____:____ __M ____ ____ ____ ____ ____ _____ | _____ ____
____:____ __M ____ ____ ____ ____ ____ _____ | _____ ____
____:____ __M ____ ____ ____ ____ ____ _____ | _____ ____
____:____ __M ____ ____ ____ ____ ____ _____ | _____ ____
____:____ __M ____ ____ ____ ____ ____ _____ | _____ ____
____:____ __M ____ ____ ____ ____ ____ _____ | _____ ____
____:____ __M Not running Not running Not running ____ ____ ____ ____ ____ _____ | _____ ____
____:____ __M Not running Not running Not running ____ ____ ____ ____ ____ _____ | _____ ____

Unit Conversions

Why care about inches?

  • In the Imperial system of measurement, inches are usually divided into halves, which means base 2 for anything shorter than 1 inch. 1/2", 1/4", 1/8", and 1/16" are commonly used measurements.
  • If you view the listings for block neodymium magnets from a supplier such as Magnet4less.com, Magnet4sale.com, or KJmagnetics.com, you can find out that magnet lengths, widths, and heights are in inches.
  • While the metric system is clearly more useful for scientific purposes, the base 2 system used for sub-inch imperial mesaurements is actually quite helpful for making interlocking assemblies composed of different-sized blocks.

Useful

  • 1 inch (in) = 2.54 centimeters (cm)
  • 1 foot (ft) = 0.3084 meters (m)
  • 1 cubic inch (in³) = 16.39 milliliters (mL) = 1.639 * 10^-5 cubic meters (m³)

Logical

  • 1 amp-hour (Ah) = 3600 Coulombs (C)
  • 1 milliamp-hour (mAh) = 3.6 Coulombs (C)
  • 1 cubic meter (m³) = 10^3 cubic decimeters (dm³) = 10^6 cubic centimeters (cm³)
  • 1 cubic meter (m³) = 10^3 liters (L) = 10^6 milliliters (mL)

Strange

  • 1 gallon (gal) = 2^2 quarts (qt) = 2^3 pints (pt) = 2^4 cups (C) = 2^7 fluid ounces (fl oz.) = 2^8 tablespoons (Tbps)
  • 2000 Calories (kCal) = 2.324 kilowatt-hours (kWh)
  • 100 Calories per 2 Tablespoons (kCal/Tbsp) = 3,930 watt-hours per liter (Wh/L)

Surprising

  • Energy of a neodymium magnet at 1.5 Tesla (T)
    • (1.5 Tesla)^2/(2*4pi*10^-7 Henries per meter) * (1.639 * 10^-5 cubic meters) = 14.67 Newton-meters (Nm) in a cubic inch
    • Conclusion: A cubic inch neomagnet, if depleted of its magnetic energy, could not even run a 15 watt light bulb for one second.
  • Energy of a AA Battery (7.7 mL) at 1.5 Volts (V) and 2000 milliamp-hours (mAh)
    • (1.5 Volts * 7200 Coulombs) * (16.39 ml / 7.7 mL) = 22,990 Newton-meters (Nm) in a cubic inch (> 1,500x)
    • Conclusion: The magnetic field energy of a magnet, if depleted, would yield less than 0.1% as much energy as a battery of the same size.
  • Energy of Peanut Butter at 100 Calories per 2 Tablespoons
    • (3,930 Wh/L) * (3600 Nm/Wh) * (0.01639 L) = 231,900 Newton-meters (Nm) in a cubic inch (> 15,000x)
    • Conclusion: Food sources of energy can be substantially more energy dense than typical battery tech.

What makes this surprise useful?

  • Sometimes online a person makes the argument that a machine is powered by magnets and that such magnets would provide energy as long as they last.
  • This argument can sometimes be used to explain away significant amounts of net work with the notion that such magnets are being spent through demagnetization.
  • In light of the fact that the energy density of neodymium magnets is less than 0.1% of the energy density of simple Alkaline battery chemistry, powering motors by utilizing the weakening of the magnet field of otherwise permanent magnets is not a plausible mechanism for explaining any output of significance.

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