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Certain geometries, on the breast of fowl, are unique and serve as a basis in grading the fowl for market. This has been done manually heretofore and requires relatively high skill.
English (United States)
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Fowl Breast Scorer
Certain geometries, on the breast of fowl, are unique and serve as a basis in
grading the fowl for market. This has been done manually heretofore and
requires relatively high skill.
A scoop-like device is proposed that aligns with the reference points on the
fowl (Fig. 1) for sending electrical signals to a computer for grading and that
provides a much greater accuracy than manual grading. Also, the system is
useful in poultry genetics studies. The sides of the scoop are sufficiently high to
cover measurement points 3, 5 and 7.
Measuring points 1 through 7 are duplicated, one set being on the right side,
and another set on the left side.
A reference point on the fowl breast enables the scoop to be accurately
positioned each time for comparative data.
Each numbered measuring point is instrumented by a linear variable
differential transducer (LVDT) probe. Each probe measures the distance to
contact from a fixed position in the holding scoop, thus measuring the curvature
of the fowl's breast. More than one size scoop will be required to measure
various types and sizes of fowl.
The differences in depth readings from probe to probe creates parabolic
effects in measurement. These effects, or vectors, lend themselves to a series of
algorithms, around some fixed parameters that are predetermined standards.
See Fig. 2. The six vectors of the right side are averaged with the six of the left
side, thus normalizing for the model comparison.