Coldspray Meter:
Research and industry standard for cold spray diagnostics
The Coldspray Meter can characterize individual particles and provide complete velocity and size distributions for cold spray processes in real time.
Talk to an expertMonitor what really matters
The Coldspray Meter is an ideal tool to:
- Validate fluid dynamic models
- Optimize spray nozzles
- Develop spray parameters
- Maximize deposition efficiency
- Monitor production runs
- Predict equipment changes
Particle velocity and size distribution
Size vs. velocity correlation
Flux (feed rate)
The Coldspray Meter advantage
Single particle detection
The Coldspray Meter uses photo-optical sensors to detect individual particles in the spray plume. The in-flight particles passing through the detectors generate a signal used to accurately determine velocity, size and feed rate for individual particles in the plume.
With acquisition rates as high as 300 particles per second, the Coldspray Meter is one of the most sensitive cold spray sensors in the industry today.
Particle distributions
Individual particle detection generates histograms for particle velocity, size and feed rate in real-time. As displayed in the figure, particle distributions can become a powerful tool for modelling and process control. The histograms can be viewed with a volumetric scale on the x-axis to inform on deposition efficiency of the process.
Measurement correlations
Using the particle distributions generated by the Coldspray Meter, strong correlations can be identified between the parameters being measured. For example, particle velocities can be measured as a function of particle size and feed rate allowing in-depth process learning, monitoring and control.
Cross-section profiling
The Coldspray Meter comes with an X-Y scanning device to perform plume cross-sectional analysis. The scanner produces contour plots indicating the distribution of various particles in the plume cross-section, as shown in the figure. This unique feature offers great insight about plume dynamics in cold spray.
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
152 mm x 300 mm x 615 mm
6 in. x 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
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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