Method and apparatus for measuring transit time differences of ultrasonic pulses for determining flow patterns

摘要

a method and a device for measuring laufzeitdifferenzen of ultraschallimpulsen for determination of flow fields.in particular, components in gaseous media uses a variety of ultraschallsendern (2) and a receiver of ultrasonic pulses and a downstream registrhere and aufnahmeeinheit (22, 25, 28).in the subject range without contact and without disturbing laufzeitdifferenzen of ultraschallimpulsen probes to measure, and the measuring range without influencing the flow to choosea receiver for the ultrasonic pulses to one or more laser beams used in the intersection of (6) with the ultraschallimpuls be modulated and the modulation to be registered.