Reactor in-vessel sensor and core monitoring apparatus

Details Reactor in-vessel sensor and core monitoring apparatus Reactor in-vessel sensor and core monitoring apparatus

1983-08-02

1986-11-11

Cangialosi, Salvatore

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

Flowmeters

374117, 374142, 376247, 376252, 73198, 7386111, G21C 1700, G01R 3300

Patent

active

046222022

ABSTRACT:
A sensor for monitoring the interior of a sodium-cooled fast breeder reactor comprises a pair of symmetrical magnetic cores, a magnetostrictive or piezoelectric vibrator element bonded to one of the cores, a primary coil and a plurality of secondary coils surrounding the magnetic cores, and a container enclosing the above members. The primary coil applied with an exciting alternating current generates an acoustic signal voltage indicative of sound, if any, originated in the interior of the reactor. The magnetic flux produced by the exciting current is influenced by the temperature and flow velocity of sodium flowing around the sensor, and corresponding voltage signals resulting from the changed magnetic flux are induced in the secondary coils.

REFERENCES:
patent: 3940996 (1976-03-01), Lauhoff et al.
patent: 3940996 (1976-03-01), Lauhoff et al.
patent: 3987362 (1976-10-01), McCann et al.
patent: 4535638 (1985-08-01), Eernisse et al.
IEEE Trans. on Nuc. Sci., vol. NS-18, No 1 (2/71) pp. 340-343, New York, U.S., Gavin et al.
S 4369 0232, Journal of Physics E, vol. 7, No. 2, pp. 69-75 (1/74) Hayes, "Instrumentation of Liquid Sodium in Nuclear Reactors".

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