| 摘要 |
<p>A spectral modulation coding optical sensor operating by reflection, connected by an optical fibre (10) to a source of light and to a demodulator, comprising a collimating lens (16), a first polarizer (18), a sensitive element (20) exposed to the physical magnitude to be measured, a second polarizer (32) and a catadioptric reflection means (28) such as the angle of a cube. According to the invention, the sensor provides a total reinsertion of the luminous flux in the optical fibre (10) after the crossing of the sensor without any interference phenomenon perturbation.</p> |
