G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 21/71 (2006.01) G01N 33/44 (2006.01) G01R 31/08 (2006.01)
Patent
CA 2504779
An improvement is made to instruments which have been used historically to measure chemiluminescence in oxidative stability studies of chemically cross linked polyethylene (XLPE) to allow said instruments to measure thermoluminescence and thereby the concentrations of by products in XLPE, either as an aggregate concentration or as individual concentrations. The improved instrument selects in turn the wavelength of a by product's emitted light and thereby measures all the individual concentrations of the individual by products in turn. The improved and adapted instruments of the present embodiments are integrated into a production process for chemically cross linked polyethylene insulated electric cables or for other products made of chemically cross linked polyethylene. This allows in situ on- the-fly measurements of by product(s) concentration(s) to aid in control, with the use of a computer, of process temperature(s) and other control variables (e.g., peroxide concentration) as selected by a manufacturer. The measurements obtained by the improved and adapted instruments of the preferred embodiments can be combined with mathematical models and sophisticated computer software, newly created or already in use in the chemically cross linked polyethylene cable manufacturing industry, to improve further the control of the chemically cross linked polyethylene manufacturing process for not only insulated electric cable but also other products made of chemically cross linked polyethylene such as, but not limited to, medical prosthetic devices and goods packaging.
Na
Rayzak Robert John
LandOfFree
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