Dynamic nip pressure and temperature sensing system

A method for determining the pressure profile in a press nip comprising:

• providing a first roll configured to form a press nip with at least one other roll, said first roll having a longitudinal roll axis and having a plurality of pressure sensors disposed at the same axial location along and circumferentially about said roll;
• using said pressure sensors to sense the pressure exhibited against said first roll while said first roll and said at least one other roll are rotatingly pressing matter therebetween,
• transmitting signals from said pressure sensors representing said pressure sensed, to a computer, and
• displaying visual representations of said pressure sensed.

A system for determining the pressure profile in a press nip comprising:

• a first roll configured to form a press nip with at least one other roll, said first roll having a longitudal roll axis and comprising a plurality of sensors disposed at the same axial location along and circumferentially about said roll for sensing load pressure exhibited on said first roll as said first roll is rotatingly pressing against said at least one other roll, said sensors providing pressure signals representative of the pressure sensed by each of said sensors;
• a computer comprising a microprocessor for computing measurements of the pressure sensed by at least one of said sensors from said pressure signals;
• and
• a display, coupled to said computer, for providing a visual representation of said measurements of pressure.

A system for determining the pressure profile in a press nip comprising:

• a first roll configured to form a press nip with at least one other roll, said first roll comprising a plurality of sensors disposed about said roll in uneven radial, axial and circumferential positions for sensing load pressure exhibited on said first roll as said first roll is rotatingly pressing against said at least one other roll, said sensors providing pressure signals representative of the pressure sensed by each of said sensors;
• a computer comprising a microprocessor for computing measurements of the pressure sensed by at least one of said sensors from said pressure signals;
• and
• a display, coupled to said computer, for providing a visual representation of said measurements of pressure.

A system for determining the pressure profile in a press nip comprising:

• a first roll configured to form a press nip with at least one other roll, said first roll comprising a plurality of fiber optic sensors for sensing load pressure exhibited on said first roll as said first roll is rotatingly pressing against said at least one other roll, said sensors providing pressure signals representative of the pressure sensed by each of said sensors;
• a computer comprising a microprocessor for computing measurements of the pressure sensed by at least one of said sensors from said pressure signals;
• and
• a display, coupled to said computer, for providing a visual representation of said measurements of pressure.

A system for determining the temperature profile in a press nip comprising:

• a first roll configured to form a press nip with at least one other roll, said first roll comprising;
• a plurality of temperature sensors disposed about said roll in uneven radial, axial and circumferential positions for sensing temperature exhibited on said first roll as said first roll is rotatingly pressing against said at least one other roll, said temperature sensors providing temperature signals representative of the temperature sensed by each of said temperature sensors,
• a computer comprising;
• a microprocessor for computing measurements of the temperature sensed by at least one of said temperature sensors from said temperature signals,
• a display, coupled to said computer, for providing a visual representation of said measurements of temperature.