Analytical Balance

From Makers Local 256
Revision as of 13:39, 25 February 2013 by Enabrintain (Talk | contribs)

Jump to: navigation, search

Creator:
EnabrinTain
Status:
Research
Born On:
11:15, 22 January 2013 (CST)
Last Updated:
13:39, 25 February 2013 (CDT)

Overview

This is where I'm hanging research for building an Analytical Balance. I'd prefer to drive it with an arduino, maybe even make a shield for it.


Analytical Balance Links

Magnetic Force Restoration

  1. Simplifying the Electronic Balance Load Cell
  2. PDF
  3. SCIENTECH BALANCES
  4. Solenoid Coil Electromagnetic Force Calculator

Capacitive Sensors

  1. Capacitive Displacement Sensors
  2. Wikipedia: Capacitive sensing
  3. Displacement, Location, or Position Sensors

Equipment/Acquisition

  • 20 Neodymium Magnets 15 x 10 x 5 mm Ring N48 (ebay: $35.78:arrived)
  • 20 Neodymium rod magnet 3mm x 10mm N35 (ebay-uk: $8.25:arrived)
  • Calibration weight set (100g to 10 mg) (ebay: $17:arrived)


Calibration Weight Calibration (yo dawg)

From the balance we used to verify the weights' mass: Calibration info from the balance just a few days before:

Load Test (within tolerance)

Actual Weight Reading
0.0000 g 0.0000 g
0.0200 g 0.0200 g
0.1000 g 0.1005 g
2.0000 g 2.0006 g
50.0000 g 50.0000 g
100.0000 g 99.9998 g
150.0000 g 149.9986 g
200.0000 g 200.0003 g
210.0000 g 209.9999 g

Weights

Stated Weight Reading
100 g 100.0045 g
50 g 50.0025 g
20 g 20.0040 g
20 g 20.0000 g
10 g 10.0000 g
5 g 5.0035 g
2 g 2.0157 g
2 g 2.0159 g
1 g 0.9985 g
500 mg 0.5280 g
200 mg 0.2012 g
200 mg 0.1992 g
100 mg 0.1186 g
50 mg 0.0510 g
20 mg 0.0238 g
20 mg 0.0230 g
10 mg 0.0089 g