Two simultatneous Alternating Parallel Wire Capacitors

[mrmilad]

Hello All, 

I am attempting to run an experiment using parallel wire capacitors to create alternating capacitive electric fields. I am looking for a DAQ and output system to allow me to generate the charges/voltages on the wires, and also allow me to record the field intensity within the capacitor.  

This is my experimental set up, I will have two sets of parallel and fully insulated wires (lets say one set in the X dimension, and the other set in the Y dimension). My goal is to alternate the charge on each set of wires at a rate of 200kHz per second, with voltages of ~5-10V, so to create an alternating capacitive field inside the capacitor X direction and another in the Y direction.

Unfortunately, I am not clear on which hardware solution would be the best option for me. Could anyone recommend the correct hardware for the job? Thank you very much in advance.

[Henrik_Volkers]

As far as I understood your description, you want a known (after some maxwell calcutations*) electric field between 4 wires.

I recomment a device with 4 sync channels analog output,since a single channel is ground referenced (or at least not fully floating). A two channel AO followed by a seperate amplifier to get a symmetrical output to GND migth work too ..

How good do you need the sine?  That will define your AO update rate .. I would see 1MSPS as a minimum better 2 or more..

*) I recommend a grounded cylinder around your wires. unless you have a big shielded chamber.   You can still analytical calculate the field for 4 (free or symmetrical ) wires in a cylinder;)