AN ECONOMIC WAY TO HAVE SMALL TEMPERATURE VARIATION CONTROLLED IN MASS MEASUREMENT

• Abstract:

  In APMF2011, we introduced a simple way by building a two-layer insulation chamber with two mass comparators inside to have small temperature variation in our laboratory. In this paper, we will introduce a economic method by adding a simple active control unit on the aluminum chamber to control the temperature inside the chamber at (20 ± 0.1) °C nearly, while the room temperature of the air-conditioning laboratory is active controlled at (21.5 ± 1.5) °C. Using this method, the transient phenomenon of temperature was observed.
• Keywords:

  temperature variation / fluctuation, passive / active control, two-layer insulation chamber
• Download:

  IMEKO-WC-2012-TC3-P22.pdf
• DOI:

  _unreg_wc-2012.TC3-P22

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