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TYPICAL APPLICATIONS
The MiniSonic-ISD main purpose is to do control nature and quality of a petroleum product
flowing in a pipe-line. Based on relationship between sound velocity and other physical
characteristics as density or concentration, it permits a very accurate survey about any
change in the process.
As device requires only a clamp on transducer, it can be installed everywhere on the pipe,
for instance at 1 km upstream from a tank farm or a pumping station. Thus MiniSonic-ISD is
currently used as an earliest advanced information densitometer. Meanwhile, it cannot be
considered as a densitometer for custody purpose.
It is possible to get sound velocity information from an ultrasonic flowmeter as our
MiniSonic-600 , with two clamp-on transducers , but the oblique angle is not constant and
so the variable path
length don’t permit the same measurement accuracy .
Moreover, principle can be applied to other process in chemical industry : concentration
analyser , proportion of mixture as long as sound velocity is representing the data to be
followed up . For instance, there is a very interesting relation with sulfuric acid at
concentrations between 75 % and 100 %. Same, any ionized salt changes sound speed of
water solvent: NaOH does ~+ 1 m/s per +1 g/l.
MiniSonic-ISD other function and MiniSonic-PSD main purpose is to be a reliable and low
installation cost
Sphere or Pig-Sig detector
. With no need of any hole (with liquid products
only) , no moving part , they can replace any out from condition old mechanical Pig-Sig
Detector and are also very interesting for any new project as well . Moreover, they can be
used for temporary detection during mechanical works on pipe-line and give information on
product in the pipe (oil or water ? ) .
Their detection is as so sensitive that they can count two successive sphere closed to
each other, that is very difficult with a standard mechanical detector. In these conditions,
MiniSonic-* gives a 5 seconds delayed second pulse.
The detection time corresponds to the end of the passed sphere or pig.
When MiniSonic-ISD is connected to an Ultraflux digital correcting unit (M 1189-N
…), it is
possible to repeat a sphere or pig passage from this correcting unit if they are connected by
R/S serial link .
