Honeywell International Inc.
Non-contact sheet material thickness measurement system

Abstract:

A non-contact thickness measurement system includes a first optical displacement sensor in a first scanner head and a second optical displacement sensor in a second scanner head on opposite sides of a sheet material. The displacement sensors measure a plurality of distances to a first line in a first direction along the top of the material and plurality of distances to a second line in a second direction along a bottom of the material. An x,y position sensor determines x,y position data. A z-position sensor measures a sensor-to-sensor distance. A computing device determines a projected intersection point of the first and second lines, and using the projected intersection point selects a first distance from the distances from first displacement sensor and a second distance from the distances from the second displacement sensor, and for calculating a sheet material thickness using the first distance, second distance, and the sensor-to-sensor distance.