Electricity: measuring and testing – Magnetic – Displacement
Patent
1989-04-18
1990-07-24
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Magnetic
Displacement
32420712, 32420722, 32420726, 324235, 104284, 307309, 338 32H, G01B 714, H01L 4306
Patent
active
049437720
ABSTRACT:
A position sensor for measuring the separation, in a givne direction (Oy), between a first part such as a datum element of a railway vehicle axle and a fixed second part such as a rail on which said axles runs, includes magnets (11, 12) for producing a magnetic field above the second part (10) and Hall effect probes (15) for measuring the value of the component of the field in said given direction (Oy) with variation in that value being proportional to the separation.
REFERENCES:
patent: 3849724 (1974-11-01), Ghibu et al.
ETZ--A vo. 83, No. 11, 21 Mai 1962--pp. 367-372, CH. J. LIPPMANN (cited in he specfication).
Caroff Pierre
Chollet Hugues
Duhot Denis
Maupu Jean-Louis
Alshtom
Eisenzopf Reinhard J.
Institut National de Recherche sur les Transports et leur Securi
Snow Walter E.
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