Acoustat used DuPont HS65 for all of its ESL models. This heat-shrinkable material has a finite amount of shrinkage, so there were really no manufacturing controls or measurement needed to determine correct tension. Heat the material until it shrinks no further, and you're done.
Sorry I don't have any numbers to apply to the question of "correct" tension.
Sorry I don't have any numbers to apply to the question of "correct" tension.
Maybe I should add some context. I am rebuilding some Dayton Wright XG8 panels. They used HS65 for the diaphragm. I want to use some 6 or 3.2 micron non shrinkable film when I rebuild them. I'll try and find some HS65 to experiment with.
I just thought there may be someone out there that had measured the tension already
I just thought there may be someone out there that had measured the tension already