Recent content by Cy9160

how did you propose to measure the dc dielectric constant? Would you propose using a very low frequency that would be approaching 0 Hz?

Most Capacitance meters work by creating an RC circuit and it sends ac through the circuit, from that set up the time-constant can be measured. since T = RC, the capacitance can then be easily calculated with the known resistance value. Then how would a DC capacitance meter work? would it be...

thank you very much for your help I will try to do that.

this is more going to be applied to the encapsulation of passive RFID tags. I have noticed after doing a frequency sweep of a lot of tags when they were in free air and compared to sandwiched between some of my plastics it did shift their optimum frequency's reading. I am now trying to specify...

just to make sure I am thinking correctly, my results would not be relevant if I used a lower frequency than the frequency of the rf wave, if it would not be relevant I might just give-up on testing for that property of the material and leave that up to a more scientific company. Another thought...

I did see some searching online and found some (quite expensive) LCR meters which read up to 3 GHz so I did not think much of it.

no I have not, I have only finished 1 year of college. I am currently working with RFID tags and after some research I found that the permittivity constant and the permeability constant were the two factors that affected radio waves. Therefore in order to get those values about the materials...

Thank you for the information, My research was done on the web, so I should be able to find out more about the equations and their error factors. Most of the error factors will probably be included in the tools used although calipers and micrometers should lessen the error. The equation I am...

I am doing some research for work and I was wondering how you would go about calculating the permittivity constant for a few plastics. I did some research a while ago and found that the dielectric value of the material was only a constant multiplier different from the permittivity constant...

Hi, I am trying to figure out how to calculate the permeability constant of a lot of plastics by making solenoid (because that seemed to be the best method of doing so). I am currently using: μ=Ll/((N^2)A) to calculate that constant. Using this method I will only need an induction meter...