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Ultrasonic digital measuring methods

  • Štefan Kočiš
  • Zdenko Figura

Abstract

An advantage of measuring methods exploiting ultrasonic waves is that they enable the direct accomplishment of a digital measurement without the need for conversion of an analog signal to a digital one by an analog-to-digital converter (ADC). In most applications, either the velocity of the ultrasonic wave or the time of flight of a wave over the measured distance is utilized. From a technological point of view, another advantage is that the propagation velocity of ultrasonic waves is many orders lower than that of electromagnetic waves. Because of this, less stringent demands are required of the transducers and the electronic circuits. On the other hand, the use of ultrasonic waves has certain drawbacks too, in particular the large dependence of the velocity of the ultrasonic waves on the parameters of the medium, and their high attenuation and scattering, especially in air.

Keywords

Propagation Velocity Ultrasonic Wave Ultrasonic Pulse Ultrasonic Measuring Ultrasonic Beam 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall and Ister Science Limited 1996

Authors and Affiliations

  • Štefan Kočiš
    • 1
  • Zdenko Figura
    • 2
  1. 1.Faculty of Electrical Engineering and Information TechnologySlovak Technical UniversityBratislavaSlovak Republic
  2. 2.SONO ElectricNové Mesto Nad VáhomSlovak Republic

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