Im doing a project on level detection of small bottles. I need to use a proximity sensor for this. The problem is that the opening of the bottles are of 15mm diameter, So when normal sensors are used, they always detect an object even if there is no liquid inside the bottle.

So I need a sensor, which has a sensing diameter of around 10mm. Please can anyone help me..

 

Sameera you check the given page..you can find your desirable sensor frm pepperl+fuchs

http://www.pepperl-fuchs.com/global/en/classid_143.htm

Regards
Vaseem Mirza

 

http://files.pepperl-fuchs.com/selector_files/navi/productInfo/doct/tdoct0846a_eng.pdf

May be this will help.