超音波センサを用いた水と油の識別 The Discrimination Between Water and Oil Using Ultrasonic Sensor
In this paper, we propose the new detection system for discriminating water in oil. The detection method adopts the difference in each temperature characteristic of propagation time of an ultrasonic wave in water and in oil. When water and oil are heated, those propagation times show a completely reverse change. For this reason, this detection system does not need to provide any previous absolute value database as references. We tried to detect the water in the electric oil transformer container. By this experiment result, we found the possibility of discrimination of water in oil, by using the proposed method.
- 電気学会論文誌. E, センサ・マイクロマシン準部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A publication of Sensors and Micromachines Society
電気学会論文誌. E, センサ・マイクロマシン準部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A publication of Sensors and Micromachines Society 124(11), 415-420, 2004-11-01