Coldspray Meter
Based on the time-tested DPV principle, the Coldspray Meter can characterize particles individually and provide complete velocity and size distributions for cold spray processes.
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The Coldspray Meter is the ideal tool for researchers and production managers involved in cold spray processes. It helps to validate fluid dynamic models, optimize spray nozzles, develop and optimize spray parameters, maximize deposit efficiency and monitor the process during production runs. Its intuitive touch screen user interface makes it easy to integrate into daily operations. The data is available as CSV files and can easily be accessed via Ethernet or a USB flash drive.
Velocity and size distribution
Size vs. velocity correlation
Flux (feed rate)
The Coldspray Meter advantage
Single particle detection
The Coldspray Meter is based on DPV technology, so it measures individual particles one at a time at a rate as high as 300 particles per second. The advanced filtering layers intrinsic to DPV particle detection can be balanced by the operator to ensure maximum detection rate and avoid false positives.
Correlations
A measurement of velocity and size is computed for each particle that crosses the sampling volume of the Coldspray Meter. It is then possible to see if the larger particles have significant velocity discrepancies compared to smaller particles. These correlations are key for validating spray models and optimizing spray nozzles.
Distributions
Thanks to individual particle detection, the Coldspray Meter provides complete velocity and size distributions in real time. The velocity curve can also be displayed with a volumetric scale on the x-axis to shed light on the deposition efficiency.
Cross-section profiling
Like the DPV, the Coldspray Meter has a very small sampling volume, which is key to individual particle detection. The instrument also comes with an X-Y scanning device with advanced functions, such as self-centering and 2D mapping of the velocity and size distributions.
Technical specifications - Coldspray Meter
Measurements ranges
Particle velocity
400-1200 m/s at 2% precision
**optional**: low speed configuration: 5-400 m/s at 2% precision
1300-3900 f/s at 2% precision
**optional**: low speed configuration: 16-1300 f/s at 2% precision
Particle diameter
10-300 µm, depending on process parameters
0.39-11 µin, depending on process parameters
Measurement volume information
Working distance
100 mm
3.93 in.
Temperature & velocity measurement volume
0.43 mm³ at 5 mm depth of field
**optional **: low-speed configuration: 0.15 mm³ at 5 mm depth of field
0.000026 in³ at 0.2 in. depth of field
**optional**: low-speed configuration: 0.0000092 in³ at 0.2 in. depth of field
XY Scanning travel
50 mm x 50 mm
2 in. x 2 in.
Dimensions and weight
Scanning module
52 mm x 300 mm x 615 mm
6 in. xX 11.8 in. x 24.2 in.
Controller
580 mm x 770 mm x 305 mm
22.8 in. x 30.3 in. x 12 in.
Total weight
49.5 kg
109.1 lbs
Plant supplies
Power requirements
120-240 VAC, 50-60 Hz 5A
Air supply
1.35-2 bar of clean dry compressed air
20-30 psi of clean dry compressed air
Laser Charateristics
Type
Class IV
Wavelength
790 nm
Nominal power
3.3 W
Maximum power density
6.5 W/cm²
42 W/in.²
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