| 摘要 |
This device comprises at least one sensor mounted on the said rotary member and means for contactless transmission of the output signal delivered by the sensor to a processing station. The transmission means comprise: - converter means (6) for converting a voltage signal which is an image of the said output signal into a variable-frequency signal, - first optoelectronic means (9), substantially optically aligned to the axis of rotation of the said member and linked in rotation therewith, for transmitting the said variable-frequency signal in light form, and - second fixed optoelectronic means (11) designed to receive the said variable-frequency light signal and convert it into an electrical signal applied to the processing station (13). <IMAGE>
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