How do natural frequency sensors measure solid and vessel frequency?

AI Thread Summary
Natural frequency sensors are used to measure the frequency changes in solids and vessels, particularly in relation to liquid levels. A microphone is mentioned as one device capable of detecting these frequency changes. The discussion highlights the importance of understanding how to excite the vibration of the tank to accurately measure these changes. The natural frequency of a tank varies with the liquid level, making it crucial to identify appropriate sensing devices. Overall, the conversation focuses on the need for effective measurement techniques for monitoring liquid levels in tanks.
usmanmalik
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Hi all !

i want to know some of the devices that measure natural frequency of solids/vessels, etc !

with regards!
take care !
 
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A microphone is such a device.
 
Thanks for reply !
actually there is any liquid in tank..when liquid level rises or falls, natural frequency of that tank changes..i wana know devices to sense these changes !
 
How are you going to excite the vibration of the tank?
 
because liquid level is changing in a vessel.
 
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