PHIPS · Research publication
PHIPS-HALO, Part 1: Design and operation
Abdelmonem et al. · Atmospheric Measurement Techniques · 2016
Publisher & DOI ↗SPECIALIZED AIRBORNE RESEARCH
PHIPS
Particle Habit Imaging and Polar Scattering probe
Connect particle shape with the light it scatters.
Capture stereo images and angular scattering from the same cloud particle. PHIPS gives researchers matched, particle-resolved observations for detailed cloud-physics questions during airborne campaigns and laboratory experiments.
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- Imaging
- Stereo microscopy
- Particle size
- 10–1000 µm
- Scattering channels
- Up to 32
MEASUREMENT & APPLICATIONS
Built for your research.
Applications
- Particle shape and optical properties
- Cloud ice and radiation studies
- Aircraft icing research
- Cloud-chamber experiments
How it works
An internal optical trigger detects a particle entering the measurement volume. Stereo microscopes capture its shape while a polar nephelometer records angular scattering. The paired observations allow the particle’s morphology and optical response to be studied together.
Matched observations
Stereo images and scattering data are recorded for individual particle events.
Event-based capture
An internal trigger selects particles in the instrument’s measurement volume.
Airborne operation
A heated, compact probe is designed for research-aircraft deployments.
INSTRUMENT DETAILS
Technical specifications.
Particle-resolved measurement
| Measurement | Stereo imagery and angular scattering |
|---|---|
| Particle size range | 10–1000 µm |
| Particle speed | Up to 250 m/s |
| Stereo image acquisition | Up to 10 Hz |
| Scattering acquisition | Up to 13 kHz |
| Scattering channels | Up to 32 |
| Angular range | 18°–170° |
| Angular resolution | 8° |
| Scattering laser | 532 nm |
| Stereo viewing angle | 120° |
Platform integration
| Weight | 12.8 kg |
|---|---|
| Overall length | 1059 mm |
| Maximum diameter | 204 mm, plus 50 mm outlet extension |
| Instrument-head length | 460 mm |
| Maximum total power | 449 W, including anti-icing |
| Control and storage | Embedded computer, SSD and Ethernet |
PHIPS has been deployed on NSF/NCAR GV HIAPER, NSF/NCAR C-130, AWI Polar 5/6, DLR HALO, NASA P-3 and WMI Citation II platforms. Contact us about integration requirements for your campaign.
READ FURTHER
Downloads & references.
Download PDFPDF · 3.8 MB
PHIPS · Research publication
PHIPS-HALO, Part 2: Characterization and first results
Schnaiter et al. · Atmospheric Measurement Techniques · 2018
Publisher & DOI ↗LET’S TALK SCIENCE
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