| 摘要 |
PCT No. PCT/FR80/00034 Sec. 371 Date Nov. 12, 1980 Sec. 102(e) Date Nov. 10, 1980 PCT Filed Mar. 11, 1980 PCT Pub. No. WO80/01951 PCT Pub. Date Sep. 18, 1980.Detector comprising two windings (1,2) disposed in two ferrite half-pots (3,4) opposite to two non-ferromagnetic metallic elements (5,6) one at least of which is movable. A pulse generator (9) feeds the two windings through resistances (7,8) coupled to a reference potential. Two circuits (10,11) detect the peak values of the resultant signals at the common points between the windings and their charging resistance. An operational amplifier (12) creates the difference of these peak values. A diode (13) permits the discharge of the windings through the resistances (7,8). Application to detectors of differential pressure, and to devices for the measurement of displacements. |
