کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7133296 1461824 2018 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A two dimensional ionic anemometer for very low flow rates
ترجمه فارسی عنوان
یک آنومومتر یونی دو بعدی برای سرعت جریان بسیار کم
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
A two-dimensional double-cage flow meter for detecting very small rates of airflow using ionized air is demonstrated. A corona discharge inside a Faraday cage generates an ion cloud that expands outside the Faraday cage driven only by its own charge in the absence of any external electric field. Due to its slow movement, the cloud is highly sensitive to the movement of the gas matrix. The use of four collector electrode grids at 0°, 90°, 180° and 270° allows for precise determination of the vector of the airflow. The method proves to be linear and suited for flow rates at least between 0 and 1.6 m/s. It is also shown that Debye shielding reduces the effect of external electric fields on the ions while the charge of the cloud itself significantly influences its movement. Despite this, efficient control of the ions by external electric fields is possible.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 276, 15 June 2018, Pages 111-117
نویسندگان
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