Category 2

Onboard Scientific Instrumentation & Sensors

Airborne probes and spectrometers that resolve cloud and aerosol microphysics in flight — particle imaging, droplet sizing, water content, and the atmospheric context needed to interpret them.

13 products

Onboard Scientific Instrumentation & Sensors products

2D-S Stereo Probe

Onboard Instrumentation

2D-S Stereo Probe

A high-resolution optical array probe that captures shadow images of cloud and precipitation particles (10 to 1,280 µm). Critical for distinguishing between liquid droplets and ice crystals.

Measurement Range
10 to 1,280 µm
Resolution
10 µm pixel resolution
Type
High-speed digital data acqu…
Fast Cloud Droplet Probe (FCDP)

Onboard Instrumentation

Fast Cloud Droplet Probe (FCDP)

Detects and measures the size of the smallest cloud droplets using forward-scattered laser light. Provides real-time droplet size distributions and concentrations.

Type
Particle-by-particle measure…
Application
Essential for understanding …
3View Cloud Particle Imager (CPI)

Onboard Instrumentation

3View Cloud Particle Imager (CPI)

Combines high-resolution photography (~2.3 µm) with optical array measurements to provide detailed views of ice crystals and rain, validating satellite and radar observations.

Resolution
~2.3 µm (photographic)
Measurement Range
Up to 2,000 µm
Type
Combined imaging and optical…
High-Volume Precipitation Spectrometer (HVPS-4)

Onboard Instrumentation

High-Volume Precipitation Spectrometer (HVPS-4)

Measures large particles like raindrops, snowflakes, and hail from 50 to 19,200 µm. Essential for analyzing storm microphysics and improving radar precipitation accuracy.

Measurement Range
50 to 19,200 µm
Resolution
Dual pixel resolutions for e…
Ka-Band Probe Radar (KPR)

Onboard Instrumentation

Ka-Band Probe Radar (KPR)

A radar system that remotely senses the vertical structure of clouds and precipitation. Analyzes reflectivity and Doppler velocity to identify cloud layers and particle motion.

Frequency
35.6 GHz
Capability
Radiometric measurement for …
Water Content Meter (WCM-2000)

Onboard Instrumentation

Water Content Meter (WCM-2000)

Measures bulk liquid, total, and ice water content using heated elements. Provides essential data for evaluating cloud growth potential and guiding seeding decisions.

Measurements
Simultaneous LWC, TWC, deriv…
Type
Heated-element sensor
Dual-Column CCN Counter

Onboard Instrumentation

Dual-Column CCN Counter

Determines which aerosol particles activate into cloud droplets under controlled supersaturation. Key to understanding how aerosols like dust influence cloud development.

Operation
Controlled supersaturation i…
Application
Aerosol-cloud interaction re…
Scanning Electrical Mobility Spectrometer (SEMS)

Onboard Instrumentation

Scanning Electrical Mobility Spectrometer (SEMS)

Measures extremely small, fine-mode aerosol particles (1–50 µm) by their electrical mobility. These particles are the initial building blocks for cloud droplets.

Measurement Range
1–50 µm (approx.)
Type
High-resolution, high-sensit…
Passive Cavity Aerosol Spectrometer Probe (PCASP)

Onboard Instrumentation

Passive Cavity Aerosol Spectrometer Probe (PCASP)

Uses laser scattering to measure larger aerosol particles like desert dust and sea salt (0.1 to 3 µm). These often function as cloud condensation nuclei (CCN).

Measurement Range
0.1 to 3 µm
Channels
30 size channels for real-ti…
Rosemount Temperature Sensor

Onboard Instrumentation

Rosemount Temperature Sensor

A shielded sensor providing high-accuracy measurements of outside air temperature. Essential for determining cloud phase and identifying conditions for ice formation.

Type
Shielded, high-accuracy sens…
Application
Validates other sensors and …
Buck 1011C Hygrometer

Onboard Instrumentation

Buck 1011C Hygrometer

A chilled-mirror optical system that precisely measures dew and frost points. Critical for identifying conditions favorable for cloud formation and ice formation thresholds.

Accuracy
±0.1 °C
Operating Altitude
0 to 13 km
Portable Optical Particle Spectrometer (POPS)

Onboard Instrumentation

Portable Optical Particle Spectrometer (POPS)

A lightweight optical particle counter designed for mobile platforms like UAVs and tethered balloons. Measures aerosol particle number and size distribution.

Measurement Range
115 nm – 3.37 µm
Weight
550 g
Application
Detecting seeding plumes and…