| 摘要 |
Circuit arrangement for compensation of inductive sensors used in railway 2-wire wheel sensors that are attached to the rail. The circuit arrangement has passive compensation elements, especially resistances (22-25) or capacitors and a microcontroller (14). The latter can be activated by a control command and controls switches (17-20) for connecting or disconnecting the compensating elements to or from the oscillator coil (7) until a predefined amplitude for the set standby current of the sensor is obtained.
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