Innovative Measurement Technology

Innovative Measurement Technology

The principle of FLEXIM's non-invasive ultrasonic flow measurement of liquids and gases relies on the propagation of ultrasonic wave signals into the medium.

Besides a high accuracy, reliability and operational safety, there are additional criteria regarding the design and selection of the appropriate ultrasonic transducer technology. 

FLEXIM offers two different transducers technologies ensuring the most precise measurement results in regard to the individual application.

FLEXIM's shear wave transducers are mostly used for the flow measurement of liquids, the Lamb Wave transducers, in particular, for the flow measurement of gases.

FLEXIM's shear wave transducers are suitable for all common pipe materials such as steel or even badly manufactured GFK and are thus universally applicable. In the case of shear wave transducers, a focused ultrasonic signal is emitted into the pipe. Due to its innovative design, one transducer pair covers a very wide application range.
The Lamb wave transducers make use of a property once discovered by the British physicist Horace Lamb - they emit a broad signal front into the flowing media. This is especially helpful when measuring low pressurised gases, where the acoustical  impedance between the pipe material and the flowing medium is rather low.

All of FLEXIM's transmitters are compatible to both transducers technologies, so that the measurement system can be optimally adjusted to the individual application.


”Fit for the Purpose” construction

With their robust construction and rugged integrated stainless steel cables, FLEXIM's transducers guarantee reliable measurement results over long periods of extensive use. Whereas the standard transducers are designed with an IP65 degree of protection, we also over transducers for applications subsurface or in flooded areas with an IP68 degree of protection. Further, all transducers and transmitters are available in various hazardous area certified variants such as ATEX, IECEx Zone 1 and 2 as well as FM Class I, Div. 1 / 2 and others.

All FLEXIM transducers are first manually matched to ensure minimal deviations to each other and then calibrated as a pair. The calibration data is stored in a transducer-resident non-volatile memory (EPROM) and is automatically transferred to the transmitter upon connection. Consequently, configuration errors are eliminated and there is never a need for a zero adjustment.

FLEXIM's transducers furthermore feature an integrated temperature probe, which ensures the compensation of ambient temperature changes. This compensation, according to ANSI/ASME MFC-5.1-2011 regulations, is another factor contributing to the exceptional precision of our flow meters.

Proprietary knowledge

With their sophisticated hardware design and powerful digital signal processing, the FLUXUS transmitters surpass any other non-invasive ultrasonic flowmeter in terms of accuracy, reliability and versatility.

Highly sophisticated signal filters, fast processing capacities and superior measurement algorithms make the FLUXUS gas and liquid flow meters the state-of-the-art measuring solution even for the most challenging applications. FLUXUS adapts itself automatically to the respective measurement conditions and compensates for disturbances such as beam dispersal and structure-borne noise, allowing for even more precise and reliable measurements. Extreme fast measurement cycles (every 10ms) allow for precise real time monitoring of highly dynamic processes.

All this make the FLUXUS flow meter unsurpassed in performance and one of the most capable ultrasonic flow meters available on the market today.

FLEXIM's non-intrusive ultrasonic clamp-on flow meters not only set the standards in terms of reliability, durability and user-friendliness but especially in terms of accuracy.