| 摘要 |
A measuring device for contactless distance measurement is disclosed, which has an optical transmission path ( 12 ), with an optical transmitter ( 22 ), and an optical receiver ( 13 ), with a receiving optical element ( 29 ) and an optical receiver ( 30 ), as well as an equipment module ( 11 ) that receives these components of the transmission and reception paths ( 12, 13 ). To maintain high measurement precision over the entire temperature range, the components of the transmission and reception paths ( 12, 13 ) are placed such that upon a temperature-dictated curvature of the equipment module ( 11 ) in the direction of the optical axes ( 121, 131 ) of the transmission and reception paths ( 12, 13 ), the optical axes ( 121, 131 ) are deflected in the same direction by the same amount. For this purpose, the transmission and reception paths ( 12, 13 ) are preferably convoluted such that the transmitter ( 22 ) and receiver ( 30 ) are both located on the same flat fastening face, fixed in the equipment module ( 11 ), the fastening face preferably being a printed circuit board ( 15 ) for receiving electronic components (FIG. 2 ).
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