Ultrasonic flow sensor with swirl pins for flow conditioning
Keywords:ultrasonic flow sensor, flow conditioning, flow measurement.
AbstractThe paper presents the ultrasonic flow sensor SDU-1L size DN50 developed by AB Axis Industries and prepared for manufacturing by using cost effectives technologies. The structure of the flow sensor and peculiarities of the sensor assembly are presented. The sensor includes the swirl pins for flow conditioning mounted at inlet of the sensor. The performed investigations showed that measurement stability is improved by about 1.6 times due to the swirl pins for flow conditioning. The assembly of the flow sensor ensures exact positioning of the reflectors and can be performed by means of simple mechanical operations. This flow sensor meets class 2 accuracy requirements according to EN1434 and can be used in the battery-powered heat energy measuring system.
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