Thermography QOD 10-13-2008

[David P. Valley]

Originally Posted by dandersen

David, not to nit pick but I would use the term gray body as a true black body does not exist. Some T or R will always occur.

Keep up the good work. It stimulates the thought process.

Black body is used in all the training manuals, so why would I go ahead and change it to your standards?

[David A. Andersen]

David,

It is not my standard and I'm not asking you to change. Maybe it was very late at night but your question was not very clear.

In my training:
Blackbody-a perfect absorber and emitter of radiation (e = 1). This is usually referenced during calibration and camera adjustment for emissivity.

Gray body-which also can be referred to as "real body" (objects with e<1). This references objects in the field that are not true black bodies.

These terms are simply used to differentiate between the emissivity of the object in the field in reference to a true blackbody (Which does not exist).

The only reason I'm bringing this up is to clarify the questions you're asking. It may not confuse everyone but it is confusing when you discuss a blackbody that is not a blackbody. That's all.

For some reason 99.9% of the people answered your question incorrectly. That is the only reason I'm pointing this out.

It's not about your question or your training, it's about the phrasing of the question and your expected answer.

As standardization is the issue at hand, the use of these terms should probably be standardized to prevent misunderstanding. But they are obviously not. Larry Kage and I sat next to one another in one class and probably perceive things a little differently than those from other programs. We need to bridge the gap so there is understanding about what a "real body" is if the terminology is encountered.

[Kevin A. Richardson]

Originally Posted by dvalley

Black body is used in all the training manuals, so why would I go ahead and change it to your standards?

David,

I get your point and it is a valid one. I think what the other David was trying to communicate is that there is really no perfect emitter. All real world objects have "E" values of less than 1.0.

Kevin

[Kevin A. Richardson]

Originally Posted by dandersen

David,

It is not my standard and I'm not asking you to change. Maybe it was very late at night but your question was not very clear.

In my training:
Blackbody-a perfect absorber and emitter of radiation (e = 1). This is usually referenced during calibration and camera adjustment for emissivity.

Gray body-which also can be referred to as "real body" (objects with e<1). This references objects in the field that are not true black bodies.

These terms are simply used to differentiate between the emissivity of the object in the field in reference to a true blackbody (Which does not exist).

The only reason I'm bringing this up is to clarify the questions you're asking. It may not confuse everyone but it is confusing when you discuss a blackbody that is not a blackbody. That's all.

For some reason 99.9% of the people answered your question incorrectly. That is the only reason I'm pointing this out.

It's not about your question or your training, it's about the phrasing of the question and your expected answer.

As standardization is the issue at hand, the use of these terms should probably be standardized to prevent misunderstanding. But they are obviously not. Larry Kage and I sat next to one another in one class and probably perceive things a little differently than those from other programs. We need to bridge the gap so there is understanding about what a "real body" is if the terminology is encountered.

David,

Please read the thread. It wasn't David Valley who asked the original question, it was me.

Kevin

[Kevin A. Richardson]

David,

Sorry for the topic change. But, I have been meaning to ask you a question. I noticed in your signature, you have the title "ITC Certified Infrared Thermologist Cert#1958" listed.

Does ITC offer certification in Thermology?

Thermology is the medical science that derives diagnostic indications from highly detailed and sensitive infrared images of the human body.

Do you do that type of work?

Please don't take offense to my question, just asking for my own curiosity.

Kevin

[David P. Valley]

Originally Posted by krichardson

David,

Sorry for the topic change. But, I have been meaning to ask you a question. I noticed in your signature, you have the title "ITC Certified Infrared Thermologist Cert#1958" listed.

Does ITC offer certification in Thermology?

Thermology is the medical science that derives diagnostic indications from highly detailed and sensitive infrared images of the human body.

Do you do that type of work?

Please don't take offense to my question, just asking for my own curiosity.

Kevin

Kevin,

Where do you see 'Thermologist" in my signature line?

I see (in plain view) "Thermographer"

[David P. Valley]

Kevin,

opps, sorry...Wrong Dave.

I think we should start using David A. and David V.

[Kevin A. Richardson]

Originally Posted by dvalley

Kevin,

opps, sorry...Wrong Dave.

I think we should start using David A. and David V.

Sorry........I meant David A.

So many David's

Kevin

[David A. Andersen]

David A. here!

Yes, were all getting mixed up!

Okay, let's see I am responding to Kevin...

Thank you for pointing that out. That came from doing a keyword search for search engine optimization.

I guess I cut and pasted that without giving it any consideration. I will change that to "certified infrared thermographer" which I am certified for!

Are you trying to get back at me for nitpicking the use of terminology?

Thanks a lot! I don't want to be producing false advertising!

[David P. Valley]

David A,

Did you participate in an Equine IR imaging program?

I'd love to get into Equine IR imaging, but I can't locate anything in my area.

[David A. Andersen]

I attended in equine symposium in northern Georgia that is designed for Ferrier's. This mostly covered leg issues in relation to horse shoeing.

I am also working with a Ferrier that recently moved to South Carolina that utilizes IR in her business.

There is a certification program coming up in California if you're interested. If you want to take a road trip, let me know and I'll dig out the information for you.

or you can get it at the above Ferrier's website at:
http://www.thermohorse.com/

[Kevin A. Richardson]

Originally Posted by dandersen

David A. here!

Yes, were all getting mixed up!

Okay, let's see I am responding to Kevin...

Thank you for pointing that out. That came from doing a keyword search for search engine optimization.

I guess I cut and pasted that without giving it any consideration. I will change that to "certified infrared thermographer" which I am certified for!

Are you trying to get back at me for nitpicking the use of terminology?

Thanks a lot! I don't want to be producing false advertising!

No, I am not picking at you.......You are a valued member here, and you have my respect just by merely reading your comments here.

I just didn't know if you were actually trained in that application.

Kevin

[David A. Andersen]

Seriously, thank you for pointing that out. I'd rather hear about it from a friend!

Sometimes we just can't see the end of our nose!

[David P. Valley]

Originally Posted by dandersen

I attended in equine symposium in northern Georgia that is designed for Ferrier's. This mostly covered leg issues in relation to horse shoeing.

I am also working with a Ferrier that recently moved to South Carolina that utilizes IR in her business.

There is a certification program coming up in California if you're interested. If you want to take a road trip, let me know and I'll dig out the information for you.

or you can get it at the above Ferrier's website at:
http://www.thermohorse.com/

I am only interested in an equine IR training program due to the many horse race tracks we have here. I'll be able to market my IR thermography services to these race tracks.

Here's one horse I scanned a few months ago. I already know what's going on with this particular horse, can you tell me...

Hey...where's the upload image icon (paperclip)????? It's GONE.

I can't upload the image right now.

[David A. Andersen]

I currently do all my scans in conjunction with a Ferrier and/or veterinarian. I do have 10 horses to practice on and improve on experience levels. If nothing else they give me a good baseline of healthy equine physiology.

I'm working on a program with three day eventing horses. I would be working on my own, however there is always a veterinarian on-site for the client to consult with.

E-mail me the scan if you can so I can manipulate it in my software.

Right now I'm out the door to go do a thermal job that I'm interested in taking a look at it this evening.

AndersenInspections@charter.net