Optoelectronic sensor and method for measuring distance or a change in distance

摘要

The opto-electronic sensor (10) has a light transmitter (12) for transmitting multiple individual light pulses successively. A light receiver (16) is provided, which receives the reflected or remitted individual light pulses. An analog preprocessor (28) is provided, which convert the individual light pulses received in the light receiver to a bipolar preprocessed signal and is supplied to a digital analysis unit over an analog to digital converter. The digital elements of the sensor are implemented on a digital component, like a Field-programmable gate array. An independent claim is also included for a method for measuring a distance or a distance change of a light propagation time of a light pulse.