کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7133821 | 1461829 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
LED array light source illuminance distribution and photoelectric detection performance analysis in dust concentration testing system
ترجمه فارسی عنوان
توزیع روشنایی نور منبع آرایه نور و تجزیه و تحلیل عملکرد تشخیص فوتوالکتریک در سیستم آزمایش غلظت گرد و غبار
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
To improve the reliability of the measurement results of dust concentration and increase the testing range of dust concentration, this paper presents a new light transmission method to measure atmospheric dust concentration. Based on the principles of dust concentration test system, the study focuses on LED array light source illuminance distribution and photoelectric detection performance; analyzes the illumination distribution characteristics and uniformity of the single LED; establishes the illumination distribution calculation model of the array LED uniform light source; deduces a new detection sensitivity and SNR calculation function on dust concentration test system, and research the relationship between dust concentration and sensitivity, SNR and the array LED uniform light source. Through calculation and analysis, the results show that the better the uniformity of the single LED light source, the better the performance of the array LED light source, and the higher the sensitivity of dust concentration test system and the better the test results; By collecting the illuminance of array LED uniform light source in different positions, the illuminance distribution was obtained, the results verifies the established uniform array LED light source model is reasonable and feasible in the dust concentration test system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 271, 1 March 2018, Pages 111-117
Journal: Sensors and Actuators A: Physical - Volume 271, 1 March 2018, Pages 111-117
نویسندگان
Hanshan Li, Xiaoyue Sang,