کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
729814 1461526 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Application of optical switch in precision measurement system based on multi-collimated beams
ترجمه فارسی عنوان
استفاده از سوئیچ نوری در سیستم اندازه گیری دقیق بر اساس پرتوهای چند ضلعی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
چکیده انگلیسی


• We built a collimated light test system based on the optical switch.
• All the collimated beams from an optical switch are highly homologous.
• Stability of the collimated beams from an optical switch is high enough.
• Working condition of the optical switch does not affect the stability of the beams.
• Optical switch is an effective light dispersion device in precision measurement system.

A collimated light test system based on the optical switch was built to test if an optical switch can meet homology and high stability requirements for precision measurement systems. An optical switch was used to split a Light Emitting Diode (LED) light source to obtain collimated beams. A Charge-Coupled Device (CCD) camera was then used to sample the collimated beams. Homology of these collimated beams was analyzed, and spot positions were calculated based on the threshold gray centroid method. Test results show that these collimated beams are highly homologous. Compared to a light source with no optical switch, which has a standard deviation of 0.03 pixels in 1 h, the stability of the collimated beams obtained from an optical switch is better, with a standard deviation of up to 0.02 pixels in 1 h, regardless of whether the optical switch is working in static or dynamic condition. A dual-path compensation test system based on the optical switch was constructed to further improve the long-term stability of the collimated beams. These tests show that an optical switch is an effective light dispersion device to get multi-collimated beams. An optical switch can also simplify the structure and improve the controllability and flexibility of the precision measurement system. We have successfully applied an optical switch in our novel 6-degree-of-freedom measurement system based on 4 collimated beams.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 61, February 2015, Pages 216–220
نویسندگان
, , , , ,