دانلود مقاله ISI انگلیسی شماره 146885
کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
146885 2018 9 صفحه PDF سفارش دهید 5274 کلمه
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
LED array light source illuminance distribution and photoelectric detection performance analysis in dust concentration testing system
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Sensors and Actuators A: Physical, Volume 271, 1 March 2018, Pages 111-117

پیش نمایش مقاله
پیش نمایش مقاله

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.

خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.