Converting Units (Medical Application)

[Arman777]

I need to convert mj/mm^2 to bar is there a way to do that ? I think we cannot ,bar is N/m^2 but we have j/m^2

 

[Doc Al]

One unit is an energy per area (energy density), but the other is a force per area (pressure). They have different dimensions and thus measure different things.

 

[Arman777]

One unit is an energy per area (energy density), but the other is a force per area (pressure). They have different dimensions and thus measure different things.

Yes I agree, thanks

 

[Doc Al]

Check this out: http://www.shockwavetherapy.education/index.php/theory/types-of-shockwave

 

[Arman777]

Check this out: http://www.shockwavetherapy.education/index.php/theory/types-of-shockwave

So I needed to convert 0.55mj/mm^2 to bar and using the table can I say its approximately 7.23 bar ? But i see that the increasement is non linear so what should I do ?

 

[Vanadium 50]

So I needed to convert 0.55mj/mm^2 to bar

One unit is an energy per area (energy density), but the other is a force per area (pressure).

Still true.

 

[Arman777]

Still true.

Yes i agree but what abou the table ? I mean i am going to physiotherapy and they asked me this question and i said we cannot convert but she said their machines are work in adjustment or it was somwthi g lke thay.

 

[Doc Al]

Yes i agree but what abou the table ?

I just skimmed that article, but it seems to say there are two ways of producing shockwaves. One of those ways can be characterized by the pressure used (compressed air), the other by the energy (magnetic). They are claiming they produce equivalent shock waves. Looks like some empirical chart.

(It's not a simple unit conversion, since those units are not measuring the same thing.)

 

[Arman777]

I just skimmed that article, but it seems to say there are two ways of producing shockwaves. One of those ways can be characterized by the pressure used (compressed air), the other by the energy (magnetic). They are claiming they produce equivalent shock waves. Looks like some empirical chart.

(It's not a simple unit conversion, since those units are not measuring the same thing.)

Okay well I ll just show them the article since they are expert and I am sure they can deduce something from it

 

[Arman777]

Btw I find this

http://skanlab.no/wp-content/uploads/2013/10/swt_part_1.pdf