Measyrement of Conductivity and Dielectric constant

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Discussion Overview

The discussion revolves around the measurement of conductivity and dielectric constant for silicone oil and castor oil. Participants explore the challenges associated with measuring these properties, particularly due to the high resistivity of silicone oil.

Discussion Character

  • Technical explanation, Debate/contested, Experimental/applied

Main Points Raised

  • One participant inquires about methods to measure the conductivity and dielectric constant of silicone oil and castor oil, noting the high resistivity of silicone oil complicates measurements.
  • Another participant suggests using a high sensitivity conductivity meter for the measurements.
  • A further inquiry is made regarding the best type of meter to use, given the small current involved in the measurements.
  • One participant expresses concern that the original question is too vague to provide a precise answer, highlighting the need for context.
  • It is noted that both silicone oil and castor oil are dielectrics, indicating that conduction will be zero below the breakdown voltage. Therefore, measurements of resistivity require current flow, which necessitates using a high power resistance meter above the breakdown voltage.
  • A request for clarification on the specific application of the measurements is made to better address the inquiry.

Areas of Agreement / Disagreement

Participants express differing views on the measurement techniques and the context needed for accurate responses. There is no consensus on the best approach or equipment to use for measuring conductivity and dielectric constant in these oils.

Contextual Notes

The discussion highlights limitations related to the vague nature of the initial question, the dependence on specific application contexts, and the unresolved aspects of measurement techniques for high resistivity materials.

pururaj
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can you please tell me, how do we measures the conductivity and dielectric constant of silicone oil and castor oil, because resistivity of silicone oil is very high so that's why it is difficult to mesure with conductivity meter,
 
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You use high sensitivity conductivity meter.
 


Please tell me more specifically, which one is best for us because cureent is so small.
 
Sorry, but your question is so vague and general that it is impossible to give a reasonably accurate answer, especially not knowing in what context you are asking.
 
Because both of these substances are dielectrics, you will have zero conduction below the breakdown voltage for the insulator. Measurements of resistivity can only be made in the material if current is flowing, so you would have to use a high power resistance meter to measure conductivity above the breakdown voltage. as long as you are below the permittivity voltage, current should not flow.

Can you please clarify the specific application?
 

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