Talk:Dielectric spectroscopy

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Spectroscopy (inactive)

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Suggestions for information on EIS

This article briefly mentions that Dielectric Spectroscopy can be applied to electrochemical systems (which is traditionally called Electrochemical Impedance Spectroscopy or EIS). However, it does not explain how EIS is any different from other types of Dielectric Spectroscopy, and does not go into detail in any electrochemical applications, specifically in batteries. There is little detail on how to actually perform these types of spectroscopy. In batteries, an AC current of a certain frequency is applied to a battery and the output AC voltage is measured (or vice versa). By dividing voltage by current, the battery's impedance can be obtained for that frequency. The process is repeated for many discrete frequencies over a wide frequency range to obtain the impedance characteristics for the frequency range.

The equivalent circuit modeling (ECM) section also appears to be lacking in depth. One ECM is included, and a transfer function for this model is shown. However, there is little detail on how to actually use these models to fit experimental EIS data. In addition, there are many other ECMs proposed in electrochemistry literature that can more accurately model the physics of the battery. For example, a Warburg Impedance element, which models a resistance to mass transport, is used to capture the diffusion of ions in a battery. This element is commonly included in ECMs along with resistors and capacitors. - Brodyriemann (talk) 17:49, 16 February 2018 (UTC)[reply]

CSIRO - Dielectrics spectroscopy machine (figure)

Here, a reference to a published article is needed to understand the working principle of the Dielectrics spectroscopy machine. — Preceding unsigned comment added by 87.171.137.115 (talk) 06:16, 19 July 2017 (UTC)[reply]

I couldn't find any references or images about this scanner. Looks more like it is a CT scanner that is used in conjunction with dielectric spectroscopy. Until proven otherwise I think the description of this image is wrong. All images of dielectric spectroscopy scanners look very different and I haven't found a single one for medical applications. The scanner in the picture is clearly intended for human imaging (see the pictograms on the left side that allow patient movement). So its very likely this is a CT scanner. 217.186.255.140 (talk) 12:07, 15 December 2017 (UTC)[reply]

DS measurements

How are these tests done?--Light current 04:57, 13 December 2005 (UTC)[reply]

I listed some variants of DS at Permittivity#Permittivity_measurements, but haven't had the time to expand it further from that time. Maybe soon... Karol 20:56, 13 December 2005 (UTC)[reply]

Yes I noticed that page. Ive put an expand tag on that para as a description of these measurement methods would be very interesting (at least to me). --Light current 22:40, 13 December 2005 (UTC)[reply]

From my part, I may add more to it soon, but I don't know how soon. Karol 09:44, 14 December 2005 (UTC)[reply]

Applications/Uses

Perhaps someone should add a section describing what Dielectric Spectroscopy is used for (and thus why the reader should care about it)? 209.173.109.224 (talk) 07:33, 12 July 2008 (UTC)[reply]

Merger proposal and wiki tags

This other article had wiki tags since 2007-12. There has been no discussion regarding this meger for over a month - (about 5 weeks). It appears that these are two articles on the same subject, so I am going to merge the articles WP:content fork. Furthermore, both articles appear to have valuable information to contribute to this one subject. Steve Quinn (formerly Ti-30X) (talk) 05:46, 4 November 2009 (UTC)[reply]

--This is my first contribution, and I am not sure I'm in the right place, doing the right thing.

However I reached this/these articles through a fruitless search for an (outmoded?) term OSCILLOMETRY which appears as recently in the 1980 Van Nostram Science Encyclopedia.

It also appears many times in WikiPedia with reference to techniques for determining blood pressure.

As I originally understood the term, it refers to the more primitive forms of DS and Impedance Spectroscopy, but is nonetheless a form of, and included in, the family of methods that rely on dielectric measurement, conductance and impedance spectrometry in a bridge or resonant device.

While on a most general level, oscillometry, DS and Impedance Spectrometry all clearly deserve mention and significant inclusion in a Physics-Centric article(s) (being Physical Phenomena), please keep in mind that there are many users seeking "applied" or "discipline-specific" information from engineers to chemists to forensic scientists who should, in MHO, encounter a "gravitational funnel" in the encylopedia associated with the general concepts that lead them deeper and deeper into the core mathematics/physics of the principles while still exposing them to the immediately practical methods, methodologies and techniques of spectography, liquid dielectric measurement, materials characterization and actual lab implementation and then deeper into the chemistry, physics and mathematics.

I'm sorry, but an increasing number of people, students, scholars and lay people, rely on the WikiPedia as a definitive source, and the "parsing" of knowledge into discreet fields is counterproductive unless a strict methodology is followed.

I would therefore recommend a practical parsing of this topic as follows:

Definitions of: Oscillometry:

               Dielectric Spectrometry 
               Impedance Spectrometry

Principles of: Oscillometry:

               Dielectric Spectrometry 
               Impedance Spectrometry

Practical application of: Oscillometry: (subheadings by discipline including medicine df.)

               Dielectric Spectrometry 
               Impedance Spectrometry

Physics behind: Oscillometry:

               Dielectric Spectrometry 
               Impedance Spectrometry

Mathematics behind the Physical Principles of: Oscillometry:

               Dielectric Spectrometry 
               Impedance Spectrometry

I apologize if this somehow resurfaces an ancient and long-ago settled hierarchical dispute that has already been settled, but I speak from the POV of an educated, scientist and linguist attempting to use the world's first global participatory lexicon. SamuelM354 (talk) 03:47, 23 March 2010 (UTC)Samuel[reply]

Separate Impedance Spectroscopy ?

The article is confusing at least and is a mess to be honest. The authors should start from "Kremer F., Schonhals A., Luck W. Broadband Dielectric Spectroscopy. – Springer-Verlag, 2002" book. That is really the bible in this field. Electrochemical impedance spectroscopy should be separate for two reasons: it has wide application in energy devices and therefore will require much space to cover. The broad band dielectric should start with all different options in the frequency spectrum and make sub-categories like electrochemical one, Rf one, Xrays etc. Dielectric spectroscopy in general applies to solids. There is no electrochemistry involved. I think that the Electrochemical Impedance Spectroscopy and Dielectric spectroscopy should be dissociated. Even if these subjects have a common background important differences exists. —Preceding unsigned comment added by Petresco (talk • contribs) 23:20, 1 January 2010 (UTC)[reply]

Maybe. Just try, if feel you will leave the resulting two articles will be better then the present mess. Or, if you want to start with a slightly easier exercise, help to improve the current text - e.g. explaining the difference between both spectroscopies. Welcome and happy editing ! -- Marie Poise (talk) 17:44, 2 January 2010 (UTC)[reply]

I agree. EIS is a method I hear used in scientific papers and research quite commonly however Dielectric spectroscopy is much less common. Unfortunately I am not familiar enough with the DS to separate the two, but I feel like this should be done. Darkwraith (talk) 05:35, 9 March 2010 (UTC)[reply]

Bonjour Marie, I am happy to see that you also consider that the current article needs to be better organised. It seems to me that the best way is to extract the EIS part from this article and use it a start point for a standalone EIS page. For me the main reason for splitting is not the measurement principle (which is basically the same : measuring an impedance) but the measuring device and its properties. One talks about dielectric properties of a material for DS and about electrochemical interfaces reactions for EIS. —Preceding unsigned comment added by Petresco (talk • contribs) 00:20, 3 January 2010 (UTC)[reply]

Could this page be divided into non-contact dielectric spectroscopy measurements such as microwave techniques, and contact based measurements like electrochemistry? I'm looking for clarification on this myself. - Greg —Preceding unsigned comment added by 69.129.36.58 (talk) 13:56, 18 June 2010 (UTC)[reply]

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Black plans?

Currently the text refers to "Black plans" as an alternative to Bode plots. I have never heard of these and cannot find a reference to them. If no one knows what those are, or what is intended, I'll remove. I searched the cited source and couldn't find any reference to them either. Maxwellfire (talk) 00:21, 6 September 2024 (UTC)[reply]