Air consumption is an important reference value in emissions certification; hence OEMs must ensure an accurate measurement process to meet increasingly stringent regulations. AVL FLOWSONIX Air features highly dynamic and precise bidirectional air flow measurement with a data rate up to 1 kHz. These unique capabilities enable AVL FLOWSONIX Air to measure highly dynamic engine behavior and even flow pulsations in the engine intake path can be resolved and measured bidirectionally. Thus, correct measurement of applications with possible reverse flows are guaranteed.
AVL FLOWSONIX Air measures intake air mass flow with high accuracy, a large downturn ratio and fast response time. It consists of the components measuring head, evaluation unit and short inlet and outlet pipes. These are designed to have as little influence on the engine as possible. Only a small pressure drop occurs in the measurement system, which results in a negligible influence on the engine.
Its flexible design allows for a quick and easy installation on any engine type. With a wide measurement range of 1:70 only two pipe diameters are required to cover light duty and heavy-duty applications.
| Technical Data | Unit |
|
Measurement ranges |
0 (± 20) … 1,400 (LD version) kg/h |
| Measurement uncertainty | < ± 1 % of reading |
| Reproducibility | 0,25 % of reading |
| Temperature air | – 20 … + 80 °C non-condensing air |
| Humidity | Max. 85 % relative humidity |
| Operating pressure max | 60 kPa … 160 kPa |
One Device for All Applications
Thanks to the design of the AVL FLOWSONIX Air, it is possible to cover a wide range of applications. From R&D testbeds to endurance testbeds, dilution air measurement, turbocharger characterization and even Break Emission with only 2 measuring tube sizes.
Direct Output of Mass Flow
AVL FLOWSONIX Air offers the opportunity of direct output of the mass flow rate. A conversion of the also available (standard) volume flow is not necessary and reduces the errors in the data post-processing enormously.
No Influence on Unit Under Test
The mechanical design of the AVL FLOWSONIX Air is focused on providing the highest quality measurement results with the lowest pressure drop. This very low pressure drop allows measurement without noticeably affecting the test unit.
Deep Insight View into Engine Behavior
The ability of AVL FLOWSONIX Air to perform flow measurement with a high time resolution of 1 kHz, even bi-directionally, provides deep insight into engine behavior even in highly pulsating flow conditions.
Solution Sheet AVL FLOWSONIX AIR
Fast and bidirectional measurement of intake air mass flow.
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