Flow measuring technology For liquids, gases and steam

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Flow measuring technology for liquids, gases and steam

Ultrasonic concentration meters Teqwave – The smart and flexible inline concentration measuring device

Surface Acoustic Waves (SAW)

No matter what industry you work in: Teqwave can be used to measure multiple liquid parameters simultaneously by means of ultrasound. It records concentrations of ternary mixtures (up to 3 components), along with speed of sound, density and temperature. The range of applications is flexible, including inline versions for installation in pipes, insertion versions for use in vessels and large pipes as well as portable device versions for various measuring points. Thanks to precise factory calibration, Teqwave is highly accurate. It comes with various inputs and outputs: current output, voltage output, Ethernet (Modbus TCP) and relay contact. Teqwave enables reliable in-line measurement of concen trations, as opposed to titrations or refractometers, which must often be carried out manually in the laboratory and are time consuming and expensive: • Alcohol concentrations of distilled beverages • Cleaning agents and disinfectants in food and beverage processes • Sugar concentration of soft drinks and fruit juices • Cleaning agents of industrial parts cleaning baths • Hardening fluids such as quenching polymers

Measuring principle The core of Teqwave is an acoustic waveguide that measures liquid concentrations extremely fast and accurately using ultrasound. The ultrasonic waves are created by a piezoelectric transducer and then propagate in the waveguide. A double arrangement of transmitter and receiver allows for a highly precise evaluation of the transmission times and amplitudes of the measured sound waves. This enables Teqwave to simultaneously measure the speed of sound, density (using acoustic core impedance) and temperature within nanoseconds. The combination of all these characteristic values makes it possible to determine the composition and the substance con centrations within a mixture of liquids reliably and exactly. Advantages at a glance • Real-time in-situ liquid analysis • Constant monitoring of product quality without sampling • Just one sensor for a wide variety of concentrations • Reliable metering due to robust, maintenance-free sensor without wear parts, no danger of drifting • Innovative application concept, expendable for changing measuring tasks • High accuracy and repeatability thanks to concen tration calculation with latest algorithms