Method for monitoring flow condition of liquid metal
AssigneeDoryokuro Kakunenryo Kaihatsu Jigyodan
InventorsKoichiro Nakamoto, Kiyokazu Ishii, Nobumi Ohyama
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Abstract
A method for monitoring flow condition of a liquid metal which employs a detector consisting of an excitation coil applied with an a.c. current and at least two detection coils disposed on both sides of said excitation coil. The detector is disposed in the flowing direction of the liquid metal and a peak point of the cross-correlation function of fluctuation signals occurring in said detection coils is examined. By detecting the moving direction, the polarity and the magnitude of the peak point, the flow condition can be comprehensively ascertained, such as a change in flow velocity, a change in void fraction, the presence of voids and transit velocity of void.
Claims5
A method for monitoring flow condition of a liquid metal comprising:
- disposing in the flowing direction of the liquid metal a detector consisting of an excitation coil applied with an a.c. current and at least two detection coils disposed on both sides of said excitation coil;
- and
- detecting the moving direction of a peak point of the cross-correlation function of fluctuation signals occurring in said detection coils to thereby determine a change of flow condition of the liquid metal.
A method for monitoring flow condition of a liquid metal comprising:
- disposing in the flowing direction of the liquid metal a detector consisting of an excitation coil applied with an a.c. current and at least two detection coils disposed on both sides of said excitation coil;
- and
- detecting the polarity of a peak point of the cross-correlation function of fluctuation signals occurring in said detection coils to thereby determine the presence or absence of voids.
Dependencies are inferred from the claim text.