AIRDOS03 - UAS Radiation Dosimeter and Spectrometer
The AIRDOS03, also known as “UAVDOS,” is a compact ionizing radiation detector and spectrometer developed in collaboration with Universal Scientific Technologies s.r.o. and optimized for integration with unmanned aerial vehicles (UAVs). It is based on the proven USTSIPIN02 electronics and is tailored for use in airborne radiation research missions.
UAV Integration
AIRDOS03 is designed as a sensor for the TF-ATMON system and seamlessly connects to the avionics of UAVs, especially the ThunderFly TF-G2 autogyro. It supports shared power supply, data logging, and telemetry with onboard systems, reducing weight and maximizing flight endurance.
This integration enables high-resolution mapping of radiation intensity in three dimensions and supports dynamic measurements in variable atmospheric conditions.
Core Technology
At the heart of AIRDOS03 is the USTSIPIN02 silicon PIN diode-based detection system, which enables:
- Measurement of deposited energy of ionizing radiation in the 60 keV to 7 MeV
- Energy resolution 15 ±2 keV per channel (firmware-dependent)
- 44 mm³ detection volume
- Lightweight, compact electronics
- 91 × 51 × 12 mm
- 40 grams
- Dual interface options: USB-C and UART (Pixhawk-compatible)
This makes the device suitable for real-time spectrum measurement and in-flight data logging.
Key Features
- Fully compatible with TF-ATMON and Pixhawk ecosystem
- Lightweight and low-power (5 V / 3 mA)
- Spectral data output for scientific analysis
- Can operate in real-time streaming mode or store data onboard
- Modular open-source firmware for custom scientific missions
Connector Pinout
AIRDOS03 provides both USB-C and UART (JST-GH) connectivity. The UART interface is compatible with the Pixhawk standard and enables integration with onboard telemetry systems or autopilot controllers.
UART (JST-GH) Pinout
| Signal | Pixhawk Color | ThunderFly Color |
|---|---|---|
| +5V |  Red | Red |
| RX |  Black |  White |
| TX | Black |  Green |
| CTS | Black |  Blue |
| RTS | Black |  Yellow |
| GND | Black | Black |
Auxiliary IO (JST-GH)
These signals provide additional functions, including synchronization or inter-device communication.
| Signal | Pixhawk Color | ThunderFly Color |
|---|---|---|
| TIMEPULSE | Black | Blue |
| EXTINT | Black | Yellow |
| GPIO | Black | White |
| SDA | Black | Green |
| SCL | Black | Yellow |
| TX | Black | White |
| RX | Black | Green |
| GND | Black | Black |
This connector is primarily intended for time synchronization with the TFGPS01 GNSS module, which provides PPS and time pulse signals compatible with this interface.
Use Cases
- UAV-based atmospheric radiation surveys
- Detection of increased ionizing radiation in convective storm regions
- Mapping radiation gradients near ground-based or airborne sources
- Scientific support for space weather and high-altitude dosimetry research
Where to get it?
AIRDOS03 can be purchased directly from ThunderFly via our contact page. For larger orders or special configurations, feel free to reach out with your requirements.
Although AIRDOS03 was developed in partnership with Universal Scientific Technologies, the ThunderFly team handles sales, support, and integration for airborne applications.