Invention Grant
- Patent Title: On-line measurement for a pressure profile
- Patent Title (中): 在线测量压力曲线
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Application No.: US11778409Application Date: 2007-07-16
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Publication No.: US07584674B2Publication Date: 2009-09-08
- Inventor: Matti Innala , Tatu Pitkänen , Petteri Lannes , Topi Tynkkynen , Petri Päivä , Marko Tiilikainen
- Applicant: Matti Innala , Tatu Pitkänen , Petteri Lannes , Topi Tynkkynen , Petri Päivä , Marko Tiilikainen
- Applicant Address: FI Helsinki
- Assignee: Metso Paper, Inc.
- Current Assignee: Metso Paper, Inc.
- Current Assignee Address: FI Helsinki
- Agency: Alston & Bird LLP
- Main IPC: G01L5/00
- IPC: G01L5/00
Abstract:
A method for measuring a nip pressure and/or a pressure profile is provided, wherein a nip-forming roll is fitted with a pressure sensor under a coating layer which is protective and functions as a spring on top of the sensor, and the nip pressure delivers to the bottom surface of the coating a deformation proportional to the nip pressure and the deformation compresses the sensor, which responds to the deformation by generating an electric signal.
Public/Granted literature
- US20080022764A1 On-Line Measurement for a Pressure Profile Public/Granted day:2008-01-31
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