| 摘要 |
Sensor comprising two coils (1, 2) arranged within two ferrites semi-pots (3, 4) facing two non-ferromagnetic metal pieces (5, 6) of which at least one is movable. A slot generator (9) supplies the two coils through resistance (7, 8) connected to a reference potential. Two circuits (10, 11) detect the peak values of the resulting signals at the common point between the coils and the charge resistance thereof. An operational amplifier (12) does the difference between these peak values. A diode (13) allows the discharge of the coils through the resistance (7, 8). Application to pressure differential sensors, and to devices for measuring displacements. |
