Method and equipment for testing of piezoceramic transducers manufacturing quality

The paper presents new testing method of piezoceramic transducers, which are used in innovative ultrasonic flow and heat metering devices. The equipment and specialized software is designed to implement fast, automatic and reliable diagnostic of piezoceramic transducer and control transducer’s manufacturing quality. The diagnostic equipment and testing approach was used while investigating transducer parameters changes during their temperature shock tests. These investigations allowed optimizing the design of ultrasonic piezoceramic transducers and minimizing their manufacturing cos

Optimization of ultrasound beam transmission path within measurement channel of ultrasonic flowmeter

The numerical simulation of the water flow through the semicircular duct is presented. The results of the simulation show that by implementing such duct into ultrasonic time-of-flight flowmeters it is possible to get an almost flat and linear function of hydrodynamic correction. The optimal choice of the dimension of ultrasonic transducers and the optimal positioning of them allows us to achieve a hydrodynamic function with the slope ~ 4%. It is expected that flat hydrodynamic calibration function gives the possibility to expand the dynamic measurement range of ultrasonic flowmeters and to increase stability and repeatability of the measurement result

Method and equipment for testing of piezoceramic transducers manufacturing quality

The paper presents new testing method of piezoceramic transducers, which are used in innovative ultrasonic flow and heat metering devices. The equipment and specialized software is designed to implement fast, automatic and reliable diagnostic of piezoceramic transducer and control transducer’s manufacturing quality. The diagnostic equipment and testing approach was used while investigating transducer parameters changes during their temperature shock tests. These investigations allowed optimizing the design of ultrasonic piezoceramic transducers and minimizing their manufacturing cos