The continuous lowering of emission limits and the global focus on testing using real driving emissions (RDE) results in increased development effort for highly complex exhaust aftertreatment system layouts. Important tasks such as combustion optimization and exhaust aftertreatment system development require data to be measured with the highest precision. The metric of these development tasks is the soot content of the exhaust gas or on the particle filter, as soot is an important indicator of combustion quality and generally a main contributor to particulate emissions. Therefore, soot is also the key parameter when evaluating the efficiency of a diesel (DPF) or gasoline particle filter (GPF) system, as well as the main measure for the creation and validation of the soot loading model.
The AVL Micro Soot Sensor 2 is the next generation of the industry-standard device for transient soot measurement designed for on-board vehicle use. Employing the photoacoustic measurement principle, soot mass concentration is measured without cross sensitivities to other exhaust gas components. This one metric is used throughout the whole engine development process across various test environments such as engine testbed, chassis dyno and on the road.
The rugged design, which meets IP34 standards, can tackle the harshest testing conditions at temperatures from -10°C to 45°C and at altitudes up to 5,000 m (with the optional pump unit). With improved system dynamics this advanced soot measurement instrument ensures increased accuracy for the development of filter loading models for DPFs and GPFs.
| Technical Data | |
|
Sensor principle |
Photoacoustic measurement principle |
| Measuring range | 0.001 – 150 mg/m³ |
| Display resolution | 0.01 μg/m³ |
| Soot detection limit | 1 μg/m³ |
| Dilution ratio (DR) | Adjustable from 2 to 20 |
| Operating temperature | -10 to +45 °C (–30 °C with option) |
| Operating altitude |
Up to 3,000 m (up to 5,000 m |
Designed for On-Board Measurements
The revolutionary exchangeable sensor unit design enables simple access to all maintenance-relevant parts via a drawer module without the need for tools.
Application-Focused
- Increased measurement range for GDI cold start applications
- Improved pneumatics for altitude measurements up to 3,000 m
- Extended operating temperature range.
- Improved system dynamics for highly dynamic testing maneuvers.
Compatibility
Full compatibility for seamless system integration to the M.O.V.E iS and iX platform. Isofix mounting plate and compatibility with existing M.O.V.E mounting options and M.O.V.E Gas PEMS iS Design Hood.
Brochure AVL Micro Soot Sensor 2
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