i neeed an opinion about measure the diameter (or ray) of reel of paper in movement in machine paper.
diameter max is 2.5 meter
i test ultrasonics sensor (4...20mA) but is not good because
- the measure is of precision to the millimeter
- and gramagem of paper and rotation speed is not constant
regards
[?]: how measure 2.5 meter diameter of paper ?
See Laser Measurement Sensors (Laser triangular sensors)
for example
http://www.ia.omron.com/product/family/ ... x_fea.html
R=D/2=1250 mm
for example
http://www.ia.omron.com/product/family/ ... x_fea.html
R=D/2=1250 mm
Don't use IFM Laser Optical distance sensor 01D100 - is very bad false analog output, but true LED display.
http://www.ifmefector.com/ifmus/web/pad ... 20_10.html
http://www.ifmefector.com/ifmus/web/pad ... 20_10.html
I use a lazer photocell of Leuze electronic model ODSL 30.
It has resolution 0.1mm, all metal
I installed it 3 years ago (works 24h/ per day) inside a RollingMill and it is still working perfect.
http://www.leuze.com/products/los/mess01_en.html
It has resolution 0.1mm, all metal
I installed it 3 years ago (works 24h/ per day) inside a RollingMill and it is still working perfect.
http://www.leuze.com/products/los/mess01_en.html
-
- Posts: 38
- Joined: Fri May 02, 2008 4:41 am
- Location: Mexico