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Ultrasonic sensors — Parallax Forums

Ultrasonic sensors

Statix_nsccStatix_nscc Posts: 4
edited 2010-11-30 09:36 in Accessories
Hello,

Does anyone know off-hand if an Ultrasonic sensor will function on a liquid object such as oil or water?

Thanks.

Comments

  • Mike GreenMike Green Posts: 23,101
    edited 2010-11-30 09:36
    You have to be careful about getting either water or oil on the sensor. The air-water or air-oil interface will reflect the ultrasonic pulse, so you could use it to give a rough measurement of liquid level. The tank needs to be relatively still so the liquid level isn't shifting during a measurement and, again, you better not get liquid on the sensor.
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