How Does Water Affect the Inductance of a Coil?

  • Context: Undergrad 
  • Thread starter Thread starter Yuri B.
  • Start date Start date
  • Tags Tags
    Coil Core Water
Click For Summary

Discussion Overview

The discussion revolves around the effects of water on the inductance of a coil, specifically a coil with an inductance of 0.1 mH. Participants explore the mechanisms that might cause changes in inductance when water enters the coil, as well as related applications in level sensing systems.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested, Homework-related

Main Points Raised

  • One participant inquires about the change in inductance of a coil when water enters, suggesting a specific configuration of the coil.
  • Another participant asks for thoughts on the mechanisms that would lead to a change in inductance, questioning whether this is a schoolwork question.
  • A different participant mentions a practical scenario involving a water-glycol system and the need for an improvised level sensor.
  • One response suggests that the focus should perhaps be on capacitance rather than inductance, recommending a search for water level sensor circuits.

Areas of Agreement / Disagreement

Participants express varying viewpoints on the relationship between water and inductance, with some focusing on inductance and others suggesting capacitance as a more relevant factor. The discussion does not reach a consensus on the primary mechanism at play.

Contextual Notes

The discussion includes assumptions about the properties of water and its effect on electromagnetic fields, but these assumptions are not fully explored or defined. There is also ambiguity regarding the relevance of inductance versus capacitance in the context of level sensing.

Who May Find This Useful

Individuals interested in electromagnetic theory, sensor design, and practical applications of inductance and capacitance in fluid systems may find this discussion relevant.

Yuri B.
Messages
137
Reaction score
0
water as coil "core"

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 ?
 
Physics news on Phys.org
Yuri B. said:
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?
 
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.
 
Yuri B. said:
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...
 

Similar threads

  • · Replies 51 ·
2
Replies
51
Views
4K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 21 ·
Replies
21
Views
2K
  • · Replies 13 ·
Replies
13
Views
3K
  • · Replies 43 ·
2
Replies
43
Views
7K
  • · Replies 16 ·
Replies
16
Views
4K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 19 ·
Replies
19
Views
12K