For both Thermal & Cold Spray processes, there are several parameters that will directly affect reproducibility of coatings. A few examples of such parameters are:
Around the mid 80’s, the thermal spray community recognized that in order to bring thermal spray processes to the next level, there was a need for sensors able to provide real-time, in-flight particles information just before impingement on the part. Various researchers around the world started to develop such sensors.
In the case of thermal spray, the particles are very hot so they emit IR radiation. That radiation is used to actually “see” the particles & in turn characterize them (temperature, velocity, size, flux, trajectory). VELOCITY is usually the result of a time-of-flight measurement, whereas TEMPERATURE & SIZE are normally calculated using the two-color pyrometry technique & assuming that:
In the case of thermal spray, the particles are very hot so they emit IR radiation. That radiation is used to actually “see” the particles & in turn characterize them (temperature, velocity, size, flux, trajectory). VELOCITY is usually the result of a time-of-flight measurement, whereas TEMPERATURE & SIZE are normally calculated using the two-color pyrometry technique & assuming that:
In 1994, TECNAR has been the pioneer company in offering the first commercially available thermal spray sensor (DPV-2000). Ever since, TECNAR has remained THE leader in that field with more than 450x sensors (DPV-2000/eVOLUTION, ColdSprayMeter, Accuraspray G3 & G3C, PlumeSpector, ShotMeter, SprayView) out in the field all around the world.