2025 Enlit Europe - Innovative Application of Lead-Free Transducers in Ultrasonic Water Meters

The ultrasonic  transducer  for water meter based on new lead-free piezoelectric material technology represents a significant technological breakthrough in the field of fluid measurement toward environmentally friendly transformation. The core component of this transducer adopts completely lead-free piezoelectric ceramic material, whose chemical composition complies with the strict restrictions on heavy metal content in the EU RoHS directive and international drinking water safety standards.

The working principle of this transducer is based on the ultrasonic time-of-flight method. When ultrasonic waves propagate in a flowing medium, there is a slight difference in the downstream and upstream propagation times. By precisely measuring this time difference and incorporating it into fluid dynamic equations, both the instantaneous flow velocity and cumulative flow volume can be calculated. This non-contact measurement method effectively avoids the wear issues of mechanical water meters and significantly improves long-term measurement stability.

The transducer maintains measurement accuracy across various water supply conditions, particularly in outdoor installation scenarios with significant temperature variations, where its temperature compensation algorithm and the material's thermal stability form a dual assurance.

Currently, this technology has passed NSF/ANSI 61 drinking water system component certification and is suitable for applications such as water supply network renovation in smart city construction and District Metered Area (DMA) leak detection and control. Its lead-free design not only meets environmental regulatory requirements but also provides key technical support for building sustainable urban water resource management systems.

Join us to explore the future of lead-free transducers for ultrasonic water meters and see how our technology enhances safety, accuracy, and sustainability in smart metering.


Date: 18–20 November 2025
Venue: Bilbao Exhibition Centre, Bilbao, Spain
Booth Number: Hall 1 · Booth 1.G110