Ultrasonic vibration sensor for machine health monitoring
UCA 586
UE SYSTEMS
This sensor is economically priced and is specifically designed for contact applications. A list of potential application uses is below:
I. Highly viscous fluid flows through pipes. Small metal balls are used to separate the liquid and to act as a sound source. Monitoring the sounds of the metal balls as they move against the pipe indicates fluid flow. A drop in sound level indicates disruption of flow.
II. Groove Counting. A machine cuts 21 groves in an armature. The armature is spun 360° creating a click for each grove. With sensor contacting the armature, the instrument counts the clicks. An incorrect count is noted in a control panel.
III. A paper mill monitors a critical valve. In only specific situations is the valve to be opened. Should a valve leak, an alarm is activated.
IV. A food producer automatically washes large tanks with an internal spray wand. A sensor mounted on the outer wall detects the spray of water as it hits the interior wall. A localized indicator signals a " no-wash" condition.
V. An Electric utility has sensors affixed to cooling and feedwater boiler pumps to detect the onset of destructive cavitation. As air bubbles are compressed in these pumps, they burst producing a very distinctive ultrasound. Once a baseline is set cavitation is indicated by an increase in ultrasound amplitude.
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