Laser apparatus for measuring dirt density on steel plates
AssigneesConsejo Nacional De Investigaciones Cientificas Y Tecnicas (Conicet), Fundacion Para el Desarrollo Tecnologico (FUDETEC)
InventorsGabriel Mario Bilmes, Oscar Eduardo Martinez
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Abstract
The invention is an apparatus that measures dirt density on steel plates, characterized by including a pulsed laser that impinges on the inspected plate, and a microphone that detects the sound produced by the sudden ablation of the dirt, the amplitude of the microphone signal being the measure of the dirt on the plate. The microphone is connected to an electronic signal processing system, which is a computer or a programmed digital processor that determines the average value and standard deviation of the signal over the number of hits specified by the operator.
Claims4
An apparatus to measure dirt density on steel plates, which includes a pulsed laser that impinges on the plate under inspection, a microphone that detects the sound produced by the sudden ablation of the dirt, the amplitude of the microphone signal being the measure of the dirt density on the plate, the microphone is connected to an electronic data processing system composed of a computer or programmed digital processor that determines the average value and standard deviation of the signal over a number of pulses specified by the operator.
Dependencies are inferred from the claim text.