G - Physics – 01 – P
Patent
G - Physics
01
P
73/69
G01P 3/42 (2006.01) G01D 5/22 (2006.01) G01P 3/44 (2006.01) G01P 3/48 (2006.01)
Patent
CA 2031751
DESCRIPTIVE ABSTRACT The invention makes it possible to detect and measure the move- ment of a moving member (50) through an amagnetic or low permeability metal wall. The installation requires ferromagnetic material targets placed at regular intervals over the moving member. The transducer is posi- tioned facing the moving member by its detection face (16). It com- prises two ferromagnetic cores (2,8) surrounded both by an exciting coil (4) and a measuring coil (10), at whose terminals the measuring signal is taken. The latter is proportional to the variable reluct- ance of the magnetic circuit, which varies as a function of the posi- tion of the ferromagnetic targets (48), The transducer is completed by a balancing core (34). Application to the measurement of the displacement of control rods in the vessel of a pressurized water reactor. (Fig. 1) B 10277.3 JB
Clergeot Henri
Placko Dominique
Plantevin Michel
Clergeot Henri
Placko Dominique
Plantevin Michel
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