Measuring and testing – Moisture content or absorption characteristic of material – By desiccation or extraction
Patent
1979-09-04
1982-02-23
Yasich, Daniel M.
Measuring and testing
Moisture content or absorption characteristic of material
By desiccation or extraction
235 92MT, 364567, G01N 502, G06G 716
Patent
active
043163840
ABSTRACT:
The digital moisture meter includes means for taring an empty sample pan placed on the balance platen. After the balance has been tared, a small sample is placed in the sample pan and a heat lamp energized. At this same time, the initial weight of the sample is stored in memory and after twenty seconds a first calculation is made to determine the percent weight loss, the value of which is also stored in memory. Subsequent percent weight loss values are calculated and if the latest percent weight loss is greater than the one that has been stored in memory, the stored one is then replaced with the latest value. However, if the latest percent weight loss value is less or equal to the stored value, the stored value is retained in memory for comparison with the next percent weight loss value that is calculated. When the percent weight loss value remains constant for a predetermined number of checks, the stored percent weight loss that has remained constant is then considered to be the correct value and is both visually displayed and printed. Provision is made for energizing the heat lamp at its full intensity for a preselected period of time and then reducing the intensity of the heat lamp so that the sample dries more slowly and thus does not burn or lose volatile non-water ingredients.
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Coleman Paul E.
Pommer Dennis L.
Enockson Gene O.
General Mills Inc.
Lillehaugen L. MeRoy
Peterson Stuart R.
Yasich Daniel M.
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