Recognoil – User‘s Manual
Software version 2.2.1_2015-02-21
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5.3. Examples of use
For the purposes of demonstration, we can suggest 3 spheres of the device application.
Example 1 – a paint shop
The Recognoil device serves as a quick random check of the surface degreasing quality. The
operator has already found out, what limit settings are appropriate for the type of object
being detected. A value of detector output, together with a per cent value, which shows
how big part of the surface has grease / oil amounts exceeding the limit, are displayed 2
seconds after the trigger has been pressed.
Example 2 – a laboratory
A laboratory would need to know exact surface concentrations and layer thicknesses. For
this reason, the one and only oil / grease type must be present on the surface and the
substance must be “sampled” in our laboratory. After this sampling process, we send an
“oil file”, which is then imported into the software and the results are from that time
represented in surface concentrations and layer thicknesses.
Example 3 – sheet metal factory
In a sheet metal factory equipped with a degreasing line, an operator would check at which
state the material goes into the degreasing line and then would check the output. The
operator has already the knowledge, how much DO (detector output) shows the Recognoil
device after degreasing at a normal state. When the device begins to show greater
numbers and shows areas of brighter colors on the display (selective accumulation of the
grease residues), it is a warning for the operator, that the degreasing line is faulty.
5.4. Notes
Even with the best degreasing method ever, it is not possible to get lower detector output
outcomes than approx. 50 units. This value strongly depends on material roughness and
anisotropy, together with the material constitution (value 50 for steel, value approx. 80 for
aluminum). The value 50 consists of basic fluorescence properties of the material (and its
oxides) plus non 100 per cent exact device radiation filtering, which then causes noise,
visible at large amounts of amplification.
For very precise detections, it is recommended to use always the same set of materials
with the same roughness as a reference sample.
If you are working with objects that contain smooth curved surfaces, it is possible that
“direct reflections” happen. Under certain angle, the incident UV ray bounces off directly
into the detector aperture, causing a small brighter elliptic-shaped area, which acts as
detected oil or grease.
