Level Measurement Using Image Sensor
| Autor: | Shiuan-Leh Lin, 林宣樂 |
|---|---|
| Rok vydání: | 2005 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 93 In this case we used laser diode and light emitter diode as light source of measurement systems. The light source will be focused on CMOS image sensor by the lens system and tilt angle will be measured by read the centriod position of light spot. We designed two tilt angle measurement systems which can be used to calibrate the level. The refraction leveler reached 10 sec of arc accuracy and the reflection leveler reached 1 sec of arc accuracy. By centriod method we can get the light spot position in subpixel accuracy. The method is high sensitive and simple to be calculated. The adventures of these two systems with simple structure are inexpensive and can be easily set. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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