The Rhopoint IQ-S is an innovative goniophotometer that provides key measures of surface appearance, gloss, haze and RIQ for detecting surface defects like orange peel or surface haze. Where standard gloss meters only measure gloss, the IQ-S is a cost effective solution for detection and measurement of all surface imperfections. The IQ-S is a specially designed instrument built specifically to match automotive interior gloss measurement standards. In addition IQ-S gloss measurements are fully compatible with existing Micro-TRI-gloss - S results. Dualgloss 20/60° or Trigloss 20/60/85° versions are close tolerance selected for maximum accuracy and resolution in all gloss applications.
The Rhopoint IQ-S measures
20/60/85° Gloss • Haze • Distinctness of image • Rspec • Goniophotometric curves
A measurement proportional to the amount of light reflected from a surface. Geometry: For best results the correct measurement geometry should be chosen based on the reflectance of the material: Matt Finish 85°, Mid Gloss 60°, High Gloss and Metallics 20°. Measurement Unit: GU.
The peak gloss value over a very narrow angle. Usage – RSPEC is very sensitive to small changes in texture and is used to identify subtle differences in surface smoothness. Measurement Unit: GU.
An optical effect caused by microscopic textures or residue on a surface. Visible Symptoms: Milky finish apparent on surface, loss of reflected contrast, halos and patterns seen around reflections of high intensity light sources. Specifically pertains to high gloss on materials such as metallic and mirrors. Causes: Poor dispersion, raw material incompatibility, additive migration, vehicle quality, stoving/drying/curing conditions, polishing marks, fine scratches, aging, oxidation, poor cleanliness/surface residue. Measurement Unit: LogHU.
DISTINCTNESS OF IMAGE (DOI)
A measure of how clearly a reflected image will appear in a reflective surface. Symptoms of Poor DOI: Orange peel, brush marks, waviness or other structures visible on the surface. Reflected images are distorted. Causes: Application problems, incorrect coating flow, coating viscosity too high/low, sag or flow of coating before curing, incorrect particle size/distribution, overspray, improper flash/recoat time, inter coat compatibility, incorrect cure times and cure temperature. Measurement Scale: 0-100, 100 is a perfect smooth surface.
REFLECTED IMAGE QUALITY (RIQ)
Same as DOI, Reflected Image Quality (RIQ) is used to detect Orange peel effects. However, the RIQ value provides high resolution results with better correlation to the human perception of surface textures, especially on high quality surfaces such as automotive paints. Measurement Scale: 0-100 whereas 100 represents a perfect smooth surface.
The instrument displays surface reflectance profiles 17-23°. The shape of the curve describes how the light has interacted with the surface. Sharp curves close to the specular direction indicate smooth highly reflective surfaces.
Click here for the Rhopoint IQ-S Brochure.
|Gloss Measurement Specification|
|Measuring Angle 20°||Improved accuracy and resolution on high gloss & metallic samples (>70GU when measured at 60°)|
|Measuring Angle 60°||Universal angle– all gloss levels|
|Measuring Angle 85°||Improved Resolution for Matt Finishes (<10 GU when measured at 60°) (only for Rhopoint IQ-S 20/60/85°)|
|Measurement range||20º: 0-2000GU / 60º: 0-1000GU / 85º: 0-199GU|
|Standards||ISO 2813, ASTM D523, ASTM D2457, DIN 67530, JIS 8741 (Conforms 60° & 85° / Verified Performance 20°)|
|Measurement range||0-10GU / 10-100GU / 100-2000GU|
|Repeatability||±0.1GU / ±0.2GU / ±0.2%|
|Reproducibility||±0.2 GU / ± 0.5GU / ±0.5%|
|Gloss Calibration Standard|
|Traceability||ISO 17025 Certified Laboratory, BAM Traceable|
|RSPEC Measurement Specification|
|Peak Specular Reflectance||20° ±0.09905°|
|Haze Measurement Specification|
|Near Specular Reflectance||Measured at 17.2-19°, 21-22.8°; Switchable between Haze Units (HU) and Log Haze Units (LogHU)|
|Standards||ASTM E430, ISO 13803|
|DOI Measurement Specification|
|RIQ Measurement Specification|
|Measurement range||12.75-27.25°, reported 14-26°|
|Angular Resolution||Approx. 0.02832°|
|Color Screen||High resolution illuminated color display; Brightness adjustable|
|Construction||All aluminium construction – enclosure, optics, calibration holder; magnetic calibration holder with in position detector|
|Statistical Analysis||Max, Min, Mean, S.D.; all measured parameters|
|Graphical Analysis||On board trend analysis; Gloss and IQ Values|
|Power||Rechargeable Lithium Ion; >17 Hours operation; >20,000 Readings/Charge|
|Operate from||Internal Battery/USB/Mains Charger|
|Recharge Time||Rechargeable Lithium Ion; >17 Hours operation; >20,000 Readings/Charge|
|Data Memory||Mains charger: 4hrs|
|Data Transfer||Bluetooth; PC & MAC compatible; USB Connection|
|Dimensions & Weight||65 x 140 x 50mm (H x W x D); 790g|
|Interface Languages||English, German, French, Spanish, Italian, Chinese, Japanese, Turkish|
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