Rhopoint IQ ( Goniophotometer ) 20°/60°
- DOI / RIQ Meter, (quantify orange peel)
- Hazemeter (reflectance haze)
- 20/60˚ Glossmeter for high gloss finishes
- Why buy an IQ, not a glossmeter?
The Rhopoint IQ quantifies surface quality problems that are invisible to a standard glossmeter and profiles how light is reflected from a surface. This incredibly advanced instrument measures: 20/60° GLOSS • HAZE• REFLECTED IMAGE QUALITY (RIQ) • DISTINCTNESS OF IMAGE (DOI) • RSPEC In practice, these terms mean: Gloss: A measurement proportional to the amount of light reflected from a surface measured at 20° (high gloss) and 60° (mid gloss) Haze: An optical effect caused by microscopic textures or residue on a surface. RIQ : Used to quantify effects such as orange peel and surface waviness. This new parameter gives higher resolution results compared to Distinctness of Image (DOI) measurement and better mimics human perception of surface texture, especially on high quality finishes such as automotive paint finish. DOI: A measure of how clearly a reflected image will appear in a reflective surface. RSPEC: The peak gloss value over a very narrow angle.
- Full colour easy to read screen, adjustable brightness 6 button touch sensitive interface
- Single button push to measure all parameters
- Pocket sized instrument with integrated tile holder
- Fully automatic calibration with tile detection and verification for error-free calibration
- Onboard Statistics (max, min, mean, S.D.) and graphs
- Results batching with user definable names
- Rhopoint Data Widget – A windows app that allows results to be instantly transmitted to any PC package such as Excel, Word, SPC programs etc.
- Bluetooth Compatibility – transmit data to any smartphone, tablet or PC
- USB results download to PC without the need to install software
The Ultimate Glossmeter Upgrade
Haze is a common problem associated with coatings and polished materials. Surfaces with haze have a “milky” finish with a “shallow” reflected image. This important characteristic is directly measured with the Rhopoint IQ. THE RHOPOINT IQ MEASURES 20/60/85° GLOSS • RSPEC • REFLECTANCE HAZE REFLECTED IMAGE QUALITY • DISTINCTNESS OF IMAGE GONIOPHOTOMETRIC CURVES
A measurement proportional to the amount of light reflected from a surface. Geometry: The correct measurement geometry should be used according to the sample finish – matt: 85°, mid gloss: 60°, high gloss: 20°.
The peak gloss measured over a very narrow angle. Usage: It is very sensitive to surface texture and can be used to identify subtle differences in smooth surfaces.
An optical effect caused by microscopic texture or residue on a surface. Visible Symptoms: A milky finish is apparent on the surface with a loss of reflected contrast. Halos and patterns can be seen around reflections of high intensity light sources. Causes: Poor dispersion, raw material incompatibility, additive migration, vehicle quality, stoving/drying/curing conditions, polishing marks, fine scratches, ageing, oxidisation, poor cleanliness/surface residue.
Reflective Haze Compensation
The instrument compensates for reflection from within the coating for highly reflective pigments, metallic coatings and speciality pigments, allowing the haze of any painted surface to be measured
Reflected Image Quality (RIQ)
RIQ is used to quantify effects such as orange peel and surface waviness. This new parameter gives higher resolution results compared to Distinctness of Image (DOI) measurement and better mimics human perception of surface texture, especially on high quality finishes such as automotive. Symptoms of Poor RIQ: 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.
Distictness Of Image (DOI)
A measure of how clearly a reflected image will appear in a reflective surface.
Fast measurement of all parameters. Full on-board statistics with graphical trend analysis and reporting.
Simultaneous measurement of all parameters, results are date and time stamped.
Displays full statistics for the number of readings in the current batch.
Graphical reporting for quick trend analysis.
Pass / fail parameters can be defined for instant identification of non-conformances
Different types of surface textures produce identifiably shaped reflectance profile. This goniophotometric data can be downloaded to PC for further analysis and comparison via the USB cable or Bluetooth Data Widget.
User definable batch names and batch sizes for quicker and more efficient reporting.
Rapid data transfer Software-free data transfer.
USB connection to PC instantly recognises the device as a drive location which facilitates the quick transfer of files using Windows Explorer or similar.
Direct data input via Bluetooth
Instantly transmit measured readings directly to programs such as MS Excel on your PC / tablet to greatly simplify the reporting process.
20,000+ readings per charge. The instrument is rechargeable via USB/PC or mains.
Need to measure surface texture, waviness and quantify the defects of all coated surfaces from low gloss to mirror finish? Visit Optimap-PSD for more information