Usage of the term "Immittance"

[kthackst]

There's a mathematical term in a work I'm writing that is either X/R for the impedance case or B/G for the admittance case. I would like to just call this term normalized immittance, but I'm not really confident if that's an appropriate use of the word and I don't want to make this more confusing than it is.

In my mind, this term (I'll call it M = X/R or B/G) satisfies all the requirements of immittance (i.e. it is dimensionless and applies to either series or shunt analysis), but I also couldn't find anyone else using the word in this way. Any thoughts?

 

[Aussie Susan]

While the term certainly does exist, my opinion is that it is not a good idea to use it as it is not a term that is widely used (I had to look it up and I've been an electrical engineer for 40 years).
The art of good writing is clear communication, especially in technical areas. Generally that means using words that the intended audience will understand easily so as to grasp the intention of your words.
Leave the ambiguity to the poets and philosophers.
Susan

 

[edf]

While the term certainly does exist, my opinion is that it is not a good idea to use it as it is not a term that is widely used (I had to look it up and I've been an electrical engineer for 40 years).
The art of good writing is clear communication, especially in technical areas. Generally that means using words that the intended audience will understand easily so as to grasp the intention of your words.
Leave the ambiguity to the poets and philosophers.
Susan

I disagree, technology and science evolves.

 

[pancho_hideboo]

https://en.wikipedia.org/wiki/Immittance

 

[zorro]

In my vision, there are two different concepts that should not be confused or mixed (but can be combined, as we will see):

a) The meaning of the term immitance, in reference to a magnitude that can be impedance or admittance. It is used for example in these situations:
- the NIC (negative immittance converter), a circuit that transforms an impedance Z into -Z*K_z, conversely an ammittance Y into -Y*K_y
- working with Smith charts, the chart can be used as an impedance or an admittance chart. The case depends whether you have parallel or serial components, and the change between one and the other is immediate.

b) Normalized impedances or admittances, that are dimensionless because they are referred to a specific reference value.

My conclusion about immitance: "Immitance" is a wildcard that can replace both "impedance" and "admittance". It is a useful and nonambiguous concept.

The original post combines the two aspects, a) and b), in "normalized immitance".

Regards

Z