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Measuring method
Comparison with alternative methods
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Measuring method of the LiquiSonic® system

The sonic velocity depends on density and on the compressibility of a material. The distance between the sonic transmitter and sonic receiver is known. The sonic velocity can easily be calculated by measuring the travel time of the sonic signal.

With
the sonic velocity the device calculates the concentration or density of the liquid. But other concentration values are also possible to measure, e.g. Brix, turbidity, conductivity, solid contents or gravity.

The
electronics require a time measurement that can be realized digitally with outstanding accuracy and long time stability. Sonic velocity analyzers have no moving parts; therefore there is no long time degradation of their mechanical properties. Using this sensor technology, the user will have several advantages against competitive methods.

The sensor firmware calculates the sonic velocity by using the known distance between the transmitter and receiver. The typical sensor design includes transmitter and receiver within one rough construction.



The
measuring method is independent of conductivity, color and transparency of the liquid and has excellent reliability. The user achieves an accuracy between 0.05 % and 0.1 % by weight. In addition to the sonic velocity measurement, all LiquiSonic® sensors have an integrated temperature measurement.

Typical applications are: > Comparison of ultrasonic concentration measurement to other measuring methods
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