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Water as coil core

by Yuri B.
Tags: coil, core, water
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Yuri B.
#1
May5-14, 10:51 AM
P: 125
How much a coil inductance of 0.1 mH (3 cm long, some 50 turns wound around 5 cm diameter empty plastic pipe) may change when water enters the pipe ?
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berkeman
#2
May5-14, 11:20 AM
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Quote Quote by Yuri B. View Post
How much a coil inductance of 0.1 mH (3 cm long, some 50 turns wound around 5 cm diameter empty plastic pipe) may change when water enters the pipe ?
What are your thoughts? What mechanism would give a change in inductance? I this a schoolwork question?
Yuri B.
#3
May7-14, 12:17 AM
P: 125
I need to empty an actually water glycol-system but I do not want to remove all but to a certain level. It would be an improvised level sensor.

berkeman
#4
May7-14, 11:36 AM
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Water as coil core

Quote Quote by Yuri B. View Post
I need to empty an actually water glycol-system but I do not want to remove all but to a certain level. It would be an improvised level sensor.
You should perhaps be looking at capacitance, not inductance. Try a Google search for water level sensor circuits...


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