METHOD OF CONTROLLING THERMAL CONTROL DEVICE PROTECTIVE GLASS FOULING Russian patent published in 2012 - IPC B61K9/06 G01J5/00 

FIELD: transport.

SUBSTANCE: proposed method relates to measurement assurance of contactless device of thermal control and may be used at rolling stock axle box temperature control devices. Proposed method comprises arranging external check passive and active irradiators opposite protective glass. Passive irradiator features temperature T₁ equal to ambient temperature while active irradiator features temperature T₂ higher than T₁. It comprises also registering responses to effects of check irradiators formed as equivalent temperatures T'₁ and T'₂, and estimating relation n=T'₁/T₁·T₂/T'₂, and at n>γ+1, where γ=Δ/T₁ is relative error of measurement at T₁, while Δ is nameplate mean square measurement error of thermal control device. It includes also performing routine maintenance of protective glass.

EFFECT: higher accuracy of measurements.