A8.3 A Hardware Simulator for the Generation of Ultrasonic Transmission Test Signals
- SMSI 2021
2021-05-03 - 2021-05-06
- SMSI 2021 - Sensors and Instrumentation
- A8 Ultrasonic Transducers and Measurement
- J. Förster, M. Gevers - KROHNE Innovation GmbH, Duisburg (Germany), M. Vogt - KROHNE Messtechnik GmbH, Duisburg (Germany), R. Geerders - KROHNE New Technologies BV, Dordrecht (The Netherlands)
- 93 - 94
The quality and characteristics of the transmission signals in ultrasonic transit-time flowmeters are important with regard to the accuracy of the time of flight and the flow measurements. In this contribution, a hardware simulator for generating ultrasonic transmission signals is presented, which allows for testing the sensor electronics of the flowmeter at zero flow and under well-defined and highly reproducible conditions. The concept is to replace the liquid by a block of polymethylmethacrylate as ultrasound propagation medium. The resulting effects on the transmission signal are analyzed and discussed.