Nip width sensing system and method

摘要

Devices for measuring a nip width between rolls of a press nip include one or more sensors adapted to be placed in the nip while the nip is stationary. The electrical resistance of each sensor corresponds to the size of the nip width, whereby a nip width or a nip width distribution may be determined by measuring the sensor resistance(s). Methods of measuring a nip width distribution include providing a plurality of force sensitive resistor sensors each of which respond to pressure applied thereto to provide a variable sensor resistance as a function of the amount of pressure and the area of the pressure exerted on the sensor.