A4R-MDx-002
High-Precision 120GHz Industrial Radar Sensor
Contactless Sensing for Industry 4.0
The A4R-MDx-002 is A4Radar‘s next-generation industrial radar sensor, operating in the 122GHz ISM band and designed for ultra-precise measurement, vibration analysis and predictive monitoring applications.
Built entirely around STMicroelectronics technologies, the A4R-MDx-002 combines the processing power of the STM32H7 family with high-performance analog electronics from ST, including operational amplifiers, power management ICs and DC/DC converters, delivering a robust, low-power and industrial-grade sensing platform.
Designed for harsh industrial environments, the sensor provides reliable operation under dust, fog, smoke, vibrations and adverse lighting conditions, where optical or contact-based sensors often fail.
Why 120GHz Radar?
Operating above 100GHz enables:
- Extremely high distance resolution
- Sub-millimeter displacement measurements
- High frame rates for dynamic monitoring
- Non-contact measurements
- Operation in harsh environments
- Maintenance-free deployment
- No recalibration required
Powered by STMicroelectronics
The A4R-MDx-002 has been developed using an entire ecosystem of ST technologies:
Processing Platform
- STM32H7 High-Performance MCU
- Real-time DSP processing
- Edge AI capabilities
- High-speed communications
Analog Front-End
- ST Operational Amplifiers
- Precision Analog Signal Conditioning
- High-performance ADC interfaces
Power Management
- ST DC/DC Converters
- Low power architecture
- Industrial power supply compatibility
The combination of radar expertise from A4Radar and ST’s semiconductor technologies creates a powerful sensing platform capable of running advanced algorithms directly at the edge.
A4Radar is proud to collaborate with STMicroelectronics in the development of advanced edge AI and radar sensing solutions. Our work has been featured by ST as a real-world customer use case, demonstrating the integration of radar sensing and embedded AI technologies using the ST ecosystem.
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Uncover the potential of edge AI by exploring a real-world application
Applications
Level Monitoring
Continuous, contactless level measurement of liquids, solids and bulk materials in harsh industrial environments.
Use Cases
- Chemical industry
- Water treatment plants
- Silos and grain storage
- Waste management
- Industrial tanks and reservoirs
- Mining and aggregates
- Food and beverage processing
Key Capabilities
- Continuous level measurement
- Sub-millimeter resolution
- Foam and vapor immunity
- Long-range measurements
- Real-time monitoring
- Edge analytics
Benefits
- No contact with the product
- Maintenance-free operation
- High accuracy and repeatability
- Suitable for aggressive environments
- Works in dust, fog and steam
- Easy integration with industrial systems
Predictive Maintenance
Monitor machine health and detect early signs of failure through contactless vibration and displacement sensing.
Use Cases
- Motors
- Pumps
- Gearboxes
- Bearings
- Fans and compressors
- Rotating machinery
- Industrial drives
Key Capabilities
- Vibration monitoring
- Displacement measurement
- Anomaly detection
- Failure prediction
- FFT-based analysis
- Structural health monitoring
Benefits
- Early fault detection
- Reduced downtime
- Lower maintenance costs
- Increased equipment lifetime
- Continuous online monitoring
- Easy retrofit on existing assets
Railway Status Detector
Radar-based monitoring of railway assets, rolling stock and infrastructure conditions.
Use Cases
- Wheel condition monitoring
- Train passage detection
- Wagon positioning
- Railway infrastructure monitoring
- Speed and movement analysis
- Axle counting and train classification
Key Capabilities
- Real-time train detection
- Wheel and bogie monitoring
- Position and speed estimation
- Infrastructure condition assessment
- Contactless operation
Benefits
- All-weather operation
- Non-contact sensing
- Real-time measurements
- Low maintenance requirements
- Increased operational safety
- Easy deployment on existing infrastructure
Production Line Monitoring
Real-time monitoring of objects, packages and moving assets on industrial production lines.
Use Cases
- Conveyor systems
- Package tracking
- Object counting
- Presence detection
- Production flow monitoring
- Warehouse automation
- Smart manufacturing
Key Capabilities
- Object detection and tracking
- Presence monitoring
- Position estimation
- Counting and classification
- Process synchronization
- Edge processing
Benefits
- Increased production efficiency
- Reduced process errors
- Improved traceability
- Non-contact measurements
- Easy integration with PLC and SCADA systems
- Supports Industry 4.0 digitalization
High-Precision Vibration Monitoring
Sub-millimeter displacement and vibration measurements for industrial and structural assets.
Use Cases
- Bridge monitoring
- Timing belt analysis
- Structural monitoring
- Machine diagnostics
- Infrastructure monitoring
- Laboratory measurements
- Process control
Key Capabilities
- Micrometric displacement measurements
- Frequency analysis
- FFT-based monitoring
- Resonance detection
- Real-time alarms
- Long-term condition monitoring
Benefits
- Non-contact measurements
- High sensitivity
- Early anomaly detection
- Suitable for inaccessible assets
- Continuous monitoring
- Reduced maintenance costs
Traffic Control & Freeflow
Radar-based monitoring of road traffic and intelligent transportation systems.
Use Cases
- Free-flow tolling
- Traffic monitoring
- Smart intersections
- Speed enforcement
- Vehicle classification
- Smart cities
- Highway infrastructure
Key Capabilities
- Vehicle detection
- Speed measurement
- Classification
- Occupancy estimation
- Lane monitoring
- Traffic flow analytics
Benefits
- All-weather operation
- Day and night performance
- Non-intrusive installation
- High reliability
- Low maintenance
- Easy integration with ITS platforms
Robotics Applications
High-resolution radar sensing for autonomous robots and industrial automation.
Use Cases
- AMRs and AGVs
- Mobile robotics
- Obstacle detection
- Warehouse automation
- Autonomous navigation
- Human-robot interaction
- Industrial safety
Key Capabilities
- Mapping and localization
- Obstacle detection
- Environment sensing
- Presence detection
- Object tracking
- Edge AI processing
Benefits
-
- Works in dust, smoke and darkness
- Low-power operation
- Real-time perception
- Increased operational safety
- Easy integration with robotic platforms
- Robust performance in harsh environments
Designed for Industry 4.0
The A4R-MDx-002 enables digital transformation by providing real-time data for:
- Edge Computing
- Digital Twins
- Predictive Analytics
- AI-based Maintenance
- Industrial Automation
- Smart Infrastructure
The sensor can operate as a standalone device or be easily integrated into existing industrial platforms.
Key Specifications
| Parameter | Value |
|---|---|
| Frequency Band | 122 GHz ISM |
| Technology | FMCW Radar |
| Measurement Type | Contactless |
| Resolution | Up to sub-millimeter (micrometer) |
| Frame Rate | Up to thousands of fps |
| Power Consumption | 1.5 W |
| Processing | Real-Time Edge Processing |
| Interfaces | Ethernet, RS485, UART, SPI, I2C |
| Environment | Dust, Fog, Smoke, Low-Light |
Why A4Radar?
A4Radar is a European Radar Design House specialized in the development of high-performance radar sensors and embedded algorithms for industrial, mobility and eHealth applications.
We design and manufacture our own hardware, embedded software and signal processing algorithms, enabling rapid customization and accelerated time-to-market.
Ready to Transform Your Industrial Processes?
Whether you need precise tank level monitoring, predictive maintenance, vibration analysis or railway monitoring solutions, the A4R-MDx-002 provides the performance and reliability required by modern Industry 4.0 applications.
Contact Us
Let’s build the next generation of industrial sensing together.
