Ultrasonic flow measurement with high resolution

• Autorzy: Grzelak S. , Czoków J. , Kowalski M. , Zieliński M.

Identyfikatory

DOI

10.2478/mms-2014-0026

• Języki publikacji: EN

Abstrakty

EN

The ultrasonic flowmeter which is described in this paper, measures the transit of time of an ultrasonic pulse. This device consists of two ultrasonic transducers and a high resolution time interval measurement module. An ultrasonic transducer emits a characteristic wave packet (transmit mode). When the transducer is in receive mode, a characteristic wave packet is formed and it is connected to the time interval measurement module inputs. The time interval measurement module allows registration of transit time differences of a few pulses in the packet. In practice, during a single measuring cycle a few time-stamps are registered. Moreover, the measurement process is also synchronous and, by applying the statistics, the time interval measurement uncertainty improves even in a single measurement. In this article, besides a detailed discussion on the principle of operation of the ultrasonic flowmeter implemented in the FPGA structure, also the test results are presented and discussed.

Słowa kluczowe

EN

ultrasonic flowmeter; time-to-digital converter; programmable logic device; time measurement

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2014
• Tom: Vol. 21, nr 2
• Strony: 305--316
• Opis fizyczny: Bibliogr. 16 poz., rys., tab., wykr., wzory

Twórcy

autor

Grzelak S.

• Department of Technical and Applied Physics, Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland

autor

Czoków J.

• Department of Technical and Applied Physics, Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland

autor

Kowalski M.

• Department of Technical and Applied Physics, Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland

autor

Zieliński M.

• Department of Technical and Applied Physics, Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland

Bibliografia

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• [3] Baker, R. C.(2005). Flow measurement handbook: industrial designs, operating principles, performance, and applications. Cambridge Univ. Press.
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Uwagi

EN

This work was supported by the Polish National Science Centre (NCN) Grant No N N505 484540