| 摘要 |
<p>A detecting device for the curved surface precision of a dish parabolic reflecting mirror (9) comprises photoelectric position sensors (11, 12), a mounting support (2), a double helix lifting mechanism (3), a 360-degree plane rotary mechanism (4), a telescopic mechanism (5), an extension rod (6), a photoelectric digital-to-analog conversion device (7) and an upper computer (8). By adjusting and controlling the arranged double helix lifting mechanism (3), 360-degree plane rotary mechanism (4), telescopic mechanism (5) and extension rod (6), and by employing the high-precision photoelectric position sensors (11, 12) and the metered extension rod (6), precise X and Y axis position coordinate values can be obtained. By the precise X and Y axis position coordinate values, the coordinate values for determining the spatial positions of the detection points are obtained. Finally, fitting is carried out according to the sampling values of the coordinate values of spatial positions in different positions to obtain the curved surface precision of the detected dish parabolic reflecting mirror, thus realizing the curved surface precision measurement of the dish parabolic reflecting mirror. A detecting method for the curved surface precision of a dish parabolic reflecting mirror (9) is also provided.</p> |
