| 摘要 |
<p>An infrared measuring arrangement with essentially expanded measuring range with an infrared radiation source (3) and an infrared radiation detector (4). The infrared radiation source (3) has a first, direct beam path to the infrared radiation detector (4), on the one hand, and, on the other hand, a second, reflected beam path to the infrared radiation detector (4), which is longer than the first one.</p> |
