3 General principles
FLUXUS F60*
3.2 Measurement arrangements
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UMFLUXUS_F60xV5-0EN, 2017-10-16
3.2
Measurement arrangements
3.2.1
Terms
Sound path
The distance covered by the ultrasonic signal after crossing the pipe once. The number
of the sound paths is:
• odd if the measurement is carried out in diagonal arrangement
• even if the measurement is carried out in reflection arrangement
Beam
The path covered by the ultrasonic signal between the transducers, i.e., the transducer
emitting the ultrasonic signal and the transducer receiving it. One beam consists of 1 or
several sound paths.
Diagonal arrangement
Reflection arrangement
The transducers are mounted on opposite
sides of the pipe.
The transducers are mounted on the same
side of the pipe.
Fig. 3.6:
Diagonal arrangement with
2 beams and 3 sound paths
Fig. 3.7:
Reflection arrangement with
1 beam and 4 sound paths