کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
726029 | 1461328 | 2012 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The relationship between current and channel diameter of 30 cm long laboratory sparks The relationship between current and channel diameter of 30 cm long laboratory sparks](/preview/png/726029.png)
In this study the dependence of channel diameter of 30 cm long sparks on discharge current is analyzed using a photographic technique. The results show the radial channel intensity variation follows a Gaussian distribution. The channel diameter (D), defined as the width of the intensity profile at 10% level, increases with the increasing peak current (Ip) up to 3 kA. The relationship between the two parameters can be represented by the equation, D = 8.36 ln(Ip) + 1.598, where D is in mm and Ip is in kA. The experimental results agree reasonably well with the available theory.
► A spark of 30 cm was created in air.
► The voltage and the current in the air gap were measured.
► By using a photographic technique an image of the spark was recorded.
► The diameter of the spark channel was estimated from the image of the spark.
► A correlation between the current and the channel diameter was found and presented.
Journal: Journal of Electrostatics - Volume 70, Issue 6, December 2012, Pages 512–516