| 摘要 |
PROBLEM TO BE SOLVED: To enable simple estimation of an abnormality of eggs in a state, while the eggs are packed and improve reliability by utilizing the fact that dielectric constants of the white and the yolk of eggs are high. SOLUTION: Electromagnetic waves, including microwaves, are irradiated to the egg 4 from a klystron 1 via a wave guide 2, a directional coupler 5 and a horn antenna 3. Reflected waves are received in route opposite to the above. Transmission waves and reception waves are respectively measured by vector volt meters 7 and 6 set to the directional coupler 5. A total quantity of the white and the yolk of the egg is estimated for each egg, by utilizing a ratio of an irradiation level and a reception level of the waves, or the like, so that whether the egg is hollow can be readily detected, and the reliability is improved.
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