A Double Transducer for High Precision Ultrasonic Time-Domain Reflectometry Measurements

摘要: Membrane fouling, where unwanted particles accumulate on the membrane surface and reduce its permeability, causes problems in filtration processes. With ultrasonic time-domain reflectometry (UTDR) it is possible to measure extent of fouling hence take actions minimize it. However, usability UTDR very limited constant conditions if sonic velocity, which has a great impact measurement accuracy, unknown. reference transducer actual velocity can be measured. This requires another installed module, there may only space or module dimensions not suitable for transducer. A double described this study eliminates need separate because included design holder. Two sensors same holder require less space. Other advantage that placed near target local determined.