SIMULATION SOLUTIONS TEST SYSTEM SOLUTIONS Electrification ��atter������e��t��������te���� E����otor����e��t��������te���� ��o��er��Electronic���� ��e��t��������te���� ��o����onent�� ��e��t��������te���� ��������on��t��e����irt��al�� te��t��e�� En��ine����e��t��������te���� En����o������ine�� ��e��t��������te���� ��eal����i��e����e��t��������te���� ��ri��eline����e��t��������te���� ����el��an����������e�� ��e��t��������te���� E��i����ion����e��t��������te������ an������ertification ��e��icle����e��t��������te���� ��acin������e��t��������te���� TESTING EQUIPMENT ����na��o��eter���� an������ct��ator�� ����icle����e��t��e���� ��e��t����ell����ec��anic������ an������ontrol����oo���� ��e��ia����on��itionin�� Consumption Measurement ��n��ection����e��tin�� ��o��������tion�� ��ea����re��ent E��i����ion����nal����i���� an������ea����re��ent ��n����e��icle�� ��ea����re��ent TESTING EQUIPMENT SIMULATION TOOLS TESTING TOOLS CUSTOMER SERVICES AIR CONSUMPTION MEASUREMENT AVL FLOWSONIX™ Air Along with fuel consumption, air consumption is another im portant parameter when developing com��ustion engines. In emission certification, air consumption is an integral part of AVL testbed solutions. The AVL FLOWSONIX™ Air components are the measuring head, the evaluation unit and two very short inlet- and outlet pipes (< 5* DN each). Due to the large measuring span of 1:70, only two different pipe diameters are needed (DN 100, DN 150) to cover the full application / 142 air consumption is taken as a reference value. Consequently, Flow direction v sin v sin v c c D T2, R1 T1, R2 T Sender R Empfänger c Schallgeschwindigkeit v Fließgeschwindigkeit des Mediums Neigungswinkel range of up to ± 2,900 kg/h. MEASUREMENT PRINCIPLE The measurement principle is based on the ultrasonic transit-time differential method. Two ultrasonic pulses are sent simultaneously through the ��owing medium from Transmitter 1 ��T1�� and Transmitter 2 ��T2��. One pulse is propagating into the ��ow and the other one against it. The interaction between the speed of sound c and the velocity of ��ow v accelerates the pulse on one of the paths and decelerates the pulse on the other path. This effective propagation velocity results in different transit times through the medium: The signal at Receiver 1 (R1) arrives faster than the signal arriving at Receiver 2 (R2). The device measures the speed of sound traveling either way, corresponding to t1 and t2. BENEFITS AT A GLANCE • The unique AVL FLOWSONIX ™ Air is impervious to contamination, which enables long maintenance intervals �� Marginal in��uence on the combustion engine due to small pressure drop in the measurement head • Quick and easy installation for any engine type • High availability of the measurement device due to extended calibration interval of one year �� One size fits all. ��ue to the wide measurement range, only two different instrument versions are required: light duty or heavy duty • Little space required – just < 5*DN up-stream and down- stream tubing APPLICATION The combination of high levels of measurement accuracy, a large measurement range and short response time enables applicability of the air mass measurement in the following fields ��of application���� engine development, quality assurance, emissions development and emissions certification. T Transmitter R Receiver c Speed of Sound v Flow Media Velocity α Inclination Angle
Solutionskatalog_2017_E
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