| 摘要 |
The invention relates to a measuring device (1) for measuring a test object (2), which measuring device (1) comprises a transmitter-receiver unit (3) and a corresponding mirror arrangement (4). The mirror arrangement (4) comprises a first mirror (7), which forms a first focal point (B1) and a second focal point in an x-y plane (Exy), and which mirror (7) is, at least sectionally, elliptically curved for deflecting radiation (S, R) between the focal points (B1). The mirror arrangement (4) further comprises a second mirror (8) arranged in the region of the first focal point (B1), which mirror (8) is used for deflecting the radiation (S, R) between a z-direction extending transversely to the x-y plane (exy) and between the x-y plane (Exy). The test object (2) to be measured is arranged in the region of the second focal point by means of a test object holder (5). The radiation (R) reflected on the test object (2) is evaluated by means of a control unit (6). The measuring device (1) according to the invention allows the measuring of the test object (2) in a simple and flexible way, in particular a measurement over the entire circumference of test objects (2) in the form of plastic pipes having a circular cross section. |
