Once youhave optimized the design of your coating product with respect to angular variation of color you have to check if it really performs as CODE predicts.
The prototype described in this section will do the job: You can record absolute reflectance and transmittance spectra in high quality for the range 8° to 85° of the angle of incidence. The 85° are possible only for thin samples, with thickness below 5 mm. You do not need a calibration mirror since the 100% reference measurement can be done with light source and detector facing directly opposite to each other.
WOSP-ART consists of a light source and a detector mounted on arms which can be rotated individually. Spectra are recorded for the wavelength range 380 … 1100 nm. Extensions to the UV (down to 280 nm) and the NIR (up to 2500 nm) are possible.
Measurements are performed using our CODE software which can export results to data files or external SQL databases.
Here is a video demonstrating the operation of WOSP-ART.
We have updated the documentation of the connectivity to external SQL databases. SCOUT and CODE can save configurations, materials and measured spectra as well as fit results. The required table structure is generated automatically.
Below is the link to the relevant section of the SCOUT manual:
A new version of the scanner has been released. We have verified that this one can process reflectance measurements taken at 55° angle of incidence, in addition to the ‘normal’ transmission and reflectance spectra recorded at 8° angle of incidence.
Make sure that your BREIN product contains 4 spectra, and that you enter Optoplex names correctly in the conversion tables ‘BE assignment’ and ‘Spectrum nicknames’: Sometimes the database column ‘Resultname’ is ‘OFR155° SB Reflection’, and sometimes it appears as ‘OFR155° SB Reflection Glass’.
You can now open up to 4 inspection windows in BREIN, showing information about 4 different sets of results.
The prediction feature of BREIN transfers the latest fit results and spectra to an internal CODE instance. This can be used to do various kinds of computations, based on the properties of the pane that was investigated last.
In a similar way the new ‘Inspection’ mechanism re-loads historic fit results (and the spectra that were used to obtain these numbers) to a separate CODE instance. This can be configured to let the operators verify the fit results and try what happens if some parameters were modified.
For details please see the updated documentation (page 55 at the moment).
The computation of the total solar heat gain coefficient (g-value) following the rules of standard ISO 52022-3 (2017) has been implemented. The procedure takes into account the temperature change of panes and gases due to absorption and re-emission of solar radiation. The absorbed solar power and the final temperature of each pane are side-results of the routine and are available in addition to the g-value.
The BREIN prediction page now forwards mouse clicks and mouse moves to the underlying CODE window. This opens the route to interactive operator work.
However, the prediction page of BREIN is updated every second only. This means the user interface is not as responsive as that of CODE itself.
We have developed a new scanner software that connects the Zeiss Optoplex SQL system to BREIN. The program scans database tables for inline and exsitu spectra and feeds new spectra into the corresponding BREIN input folders.
The definition of the trigger event that initiates the re-computation of the prediction page has been improved: You can now specify a range of x, y or z values, in addition to fixed values.
A setting of “1500 … 1600” for y means that the trigger event is fired whenever the condition 1500<=y<=1600 holds. This new feature is useful to handle traverse systems which do not measure at exactly the same positions when scanning a sample.
You can still set unique values like “1567” for the x, y or z coordinates.
This problem has been described in a previous post. The recommended installation of the Microsoft redistributable package does not seem to solve the problem in every case.
We have made the missing DLLs available on our website. You can download the files here and copy them to your SCOUT or CODE program folder directly, without executing any installation routine.
The relevant program folders are (very likely) c:\scout\ (in the case of SCOUT) or c:\code\ (for the CODE software).