Patent ID: 6971261
Filing Date: 2005-12-06
Classification: G01N

Abstract:
1. A method for determining at least one property of a moving clothing of a machine for at least one of producing and treating a fiber material web, comprising the steps of: arranging a nozzle opposite a surface of the moving clothing; producing a jet acting on the moving clothing by way of said nozzle contacting the moving clothing; measuring a variable representative of a nozzle flow through said nozzle; measuring a variable representative of a pressure of said jet at an outlet of said nozzle; determining a speed of said jet at said nozzle outlet from said nozzle flow and a free surface of a jet medium at a point of contact with said moving clothing; determining a speed of said jet at an entry into the moving clothing from said speed of said jet at said nozzle outlet and a speed of the moving clothing; using said speed of said jet at said entry into the moving clothing at a given said pressure of said jet at said nozzle outlet and said entry into the moving clothing to determine at least one of a water permeability of the moving clothing and at least one surface property of the moving clothing.