Honeywell Asca Inc.

Honeywell International Inc.

Honeywell G.m.b.h.

Graham I Duck

Frank Martin Haran

David Jez

Michael K Y Hughes

Sebastien Tixier

Michael Kon Yew Hughes

John F Shakespeare

Stuart James Heath

Ross MacHattie

Dan Gordon

John Shakespeare

Michael Ky Hughes

Frank M Haran

A method includes measuring a caliper of a sheet of material using a caliper sensor having first and second sensor modules. The method also includes adjusting the caliper measurement based on a transverse displacement between a first sensor component in the first sensor module and a second sensor component in the second sensor module to generate a corrected caliper measurement. Adjusting the caliper measurement can include applying a corrector function that adjusts the caliper measurement based on the measured transverse displacement. The corrector function can be identified by repeatedly creating misalignment between the first and second sensor components, measuring a known distance using the caliper sensor, and identifying an error between the measurement of the known distance and the known distance.

System and method for correcting caliper measurements of sheet products in sheet manufacturing or processing systems

Dual mounting head scanner system measures the thickness of a flexible continuous moving web such as paper by employing an optical senor positioned in the upper head to determine the distance between the optical sensor and the upper surface of the paper while a displacement sensor positioned in the lower head determines the distance between the displacement sensor, which includes an RF coil, and a reference surface on the upper head. An air clamp and vacuum source assembly on the operative surface of the lower head maintains the moving web in physical contact with a measurement surface that is incorporated in the operative surface. The optical sensor directs incident radiation onto the web at the measurement surface. Thermal isolation of the two sensors eliminates thermal interactions.

Method of measuring the thickness of a moving web

An apparatus for determining fiber orientation parameters of a sheet of material during a production process includes a polarized radiation generating system operable for providing polarized radiation having a frequency of at least 1&#xd7;10Hz. The radiation is aligned to be incident on a sheet material to be characterized. A polarimeter is aligned to receive the radiation transmitted by the sheet material. A photodetector is provided for measuring radiation received after polarization processing by the polarimeter. A processor is coupled to the photodetector for calculating Stokes parameters of the sheet material based upon intensities of the radiation received and determines at least one parameter relating to fiber orientation of the sheet material based upon the Stokes parameters.

Apparatus for characterizing fibrous materials using stokes parameters

An apparatus () for determining fiber orientation parameters of a sheet of material during a production process includes a polarized radiation generating system () operable for providing polarized radiation having a frequency of at least 1&#xd7;10Hz. The radiation is aligned to be incident on a sheet of material to be characterized (). A polarimeter () is aligned to receive the radiation transmitted by the sheet of material (). A photodetector () is provided for measuring radiation received after polarization processing by the polarimeter. A processor () is coupled to the photodetector () for calculating Stokes parameters of the moving sheet () based upon intensities of the radiation received and determines at least one parameter relating to fiber orientation of the moving sheet based upon the Stokes parameters.

Method for characterizing fibrous materials using stokes parameters

A material measurement system () includes a THz generator including at least one laser source () for emitting optical pulses, the optical pulses coupled to a THz emitter () operable for emitting pulsed THz radiation at a sample location on material while being processed () by a manufacturing system. A receiver () is operable to receive the optical pulses and to detect reflected or transmitted THz radiation from the sample location () synchronously with the optical pulses and provide electrical detection signals. Synchronizing optics () is operable to receive the optical pulses from said laser and provide the optical pulses to both the receiver () and the THz emitter (). A controller () includes at least one processor () for receiving the electrical detection signals and providing a processed electrical detection signal, and an analyzer () operable to determine at least one, and generally a plurality of properties of the material from the processed electrical detection signal.

Material measurement system for obtaining coincident properties and related method

An optical translation technique for moving the interrogation spot at which a triangulation system measures the displacement of a target is disclosed. In normal operation of the laser triangulation sensor, an incident laser beam is projected from a sensor head onto a surface of a web that is facing the sensor head. Radiation is reflected from the surface and detected by the sensor. The distance from the sensor head to the web surface is calculated by triangulation. With optical translation, both the incident ray path and the captured ray path are translated with a plurality of high refractive index geometries such that the nominal functioning of the triangulation sensor remains undisturbed. The optimal position on the sheet wherein the interrogation spot will be located can be ascertained.

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Vancouer, Canada

Graham I Duck