Hi,
I'm newbie in vibration field. How can you interpete PSD data? In other words, I have data of a PSD (g^2/Hz vs Hz)curve for a truck, how can I know or calculate the objet that I want to put in is safe (not damage by the truck's vibration)?
Thanks,
Mica
Hi,
I want to clarify an equation. The resistance is given by
R = rho * L /A, this is valided in a conductor. Can we use it to calculate for a dielectric material.
Thanks,
Mica
Hi,
I'm looking for a materail which its strain value is highest possible. I would like to find a material which able to absorber all the energy when an objet is falling down. The masse of the objet is about 100 kg and it falls from 0.6 m. Is it possible to calculate want is the thickness...
Hi,
Q. What is the set up for a transmitting antenna and the set up for a receiving antenna ? I know the proprities of a transmitting or a receiving antenna are the same but what is the different between an operating mode and a receiving mode?
Thanks,
Mica
Hi,
If I have a dipole (horizotal or vertical), the radiation pattern is independant in phi angle but if my dipole is in a direction (i,j,k), this will dependant on phi angle? If so, what is the complet formula for this?
Thanks,
Mica
Hi,
Is someone know very well the NEC code? In my programme, I have say "Control card". It is like the input data. Some of them, I know how to play with but one Control card with "EX" means "excitation", how do you program this card? An example will be appreciated and please with explications...
Hi,
I need some suggestions. Well, I'm beginner in Antenna Design. The question is : the wave form of the input to the antenna, what is the effects or consequences of that ? Example, if my wave form is a square what is the output, or if is a sinoidale what is the consequences? And how can I...
Hi,
I'm new in electronic circuit. I'm working with NEC code to figure out how to analysis antenna. I want some suggestions from you guys where I can start with some simple designe of antenna that I can understand how it works and anaylses? Another question is what is the different if I exicte...
Hi all,
I'm trying to creat an ebook. The problem is when I open it everythings are fine but when I close it the software ask me the question " Save changes"?. I just look in it and didn't change anything. The thing that was changed is the programme calcule automatic. So, what should I do to...
