Analysis of Ultrasonic Meters Based on Displacement of Sound Waves Garso bangos poslinkio principu paremto ultragarsinio matuoklio analiz

Most modern technological processes measure the rate and flow of gas. For this purpose, ultrasound, especially pulsed time, has begun to be applied widely. The disadvantage of most pulsed temporal methods for measuring is that signal amplitude can vary only in strictly defined limits. Otherwise, the signals may be sent or received at the wrong moment. My aim was to review the different approaches used to measure the voltage amplitude value of a signal and to describe the capabilities of a projected instrument system. Article in Lithuanian Daugelyje technologini proces tenka matuoti tekan i duj sraut greit bei debit . iems tikslams vis pla iau taikomi ultragarsiniai metodai, ypa impulsiniai laikiniai. Did iausias impulsini laikini matavimo metod trūkumas tas, kad priimto signalo amplitud gali kisti tik grie tai apibr tose ribose. Kitu atveju signalai gali būti praleid iami arba fiksuojami klaidingu laiko momentu. Darbe nagrin tas kitoks metodas – tai priimto signalo tampos amplitud s vert s nustatymas; taip pat tirtos naujo projektuojamo prietaiso sistemos galimyb s. Metodo veikimas pagr stas tuo, kad ultragarso (kaip ir garso) bangos yra veikiamos oro srauto ir kei ia savo krypt priklausomai nuo oro srauto stiprumo. Straipsnis lietuvi kalba