AUTOMATIC WEIGHT EXCHANGER FOR SERIES DESIGN CALIBRATION |
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| W. G. Lee, Y. J. Lee |
- Abstract:
- An automatic weight exchanger for series design calibration of a decade weights is described. The vertical pan with 6 loading positions is hanged down from a balance hook. Weights are loaded on and lifted off vertically. Every weight has its own vertical guide for lifting and loading. The vertical motion is realized by 6 synchronous stepping motors. The weight exchanger is installed with a commercial balance of 205 g capacity and 0.01 mg readability. The full operation is automated with a personal computer. The performance tests were carried out. The present status results indicate: Calibration time and labor could be reduced significantly. Uncertainty could be reduced by reducing operator’s random error. Calibration series of 100-50-20-20’-10-10’ g was tested successfully to give maximum Type A uncertainty of 0.014 mg. The apparatus will be incorporated with Internet web for remote calibration and education.
- Download:
- IMEKO-TC3-2001-034.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC3
- Event name:
- TC3 Conference 2001
- Title:
17th Conference on Force, Mass and Torque
- Place:
- Istanbul, TURKEY
- Time:
- 17 September 2001 - 21 September 2001