Systems and methods for utilizing linear optoelectronic sensors are provided. A plurality of linear sensors may be utilized to obtain velocity measurements of a web material at two points. The acceleration of the web material may be determined from the velocity measurements and a control signal issued to a servo to maintain proper tension along the web material.
申请公布号
WO2010090742(A2)
申请公布日期
2010.08.12
申请号
WO2010US00314
申请日期
2010.02.04
申请人
COGNEX CORPORATION;TREMBLAY, ROBERT, J.;SILVER, WILLIAM, M.;MOED, MICHAEL, C.
发明人
TREMBLAY, ROBERT, J.;SILVER, WILLIAM, M.;MOED, MICHAEL, C.