Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7137949 | Sensors and Actuators A: Physical | 2013 | 9 Pages |
Abstract
For MD process it is necessary a very high precision system to measure the solution level in the reservoirs, able to detect changes smaller than 0.05 mm. This is due to the small fluxes through the membrane, and therefore it is necessary to detect the small changes produced in the liquid levels in the reservoirs. Until now such measurement has been made manually, by means of a cathetometer, but it resulted very uncomfortable. In order to overcome this issue, a high resolution and accuracy system (0.013 ± 0.008 mm), that makes automatic measurements of both reservoirs, cold and hot, is proposed. This system is based on a laser beam, assisted with a high resolution 3 Mpixels CMOS camera and a computer vision processor implemented in a FPGA, with a measurement rate up to 12 times per second.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
M.G. Lorenz, L. Mengibar-Pozo, M.A. Izquierdo-Gil,