Recent content by foahtein

thanks for the information, and averagesupernova, I'm not into car audio. I know that majority of the people who purchase cap's are into car audio, but I'm doing a design project that need a cap to have an actuation time of less than 1 sec.

Can anyone tell me the difference in capacitors. Such as the quality control in producing it, the testings, the specs (low esr), brand names, and if its worth buying a 30 dollars 1.5 farad capacitor v.s. a 170 dollars 1 farad capacitor. thanks

well the wire temperature is the Austenite peak from the Differential Scanning Calorimeter (DSC) test. my Teaching Assistant said that the wire will contract at approximately 70-90 degrees celsius. so that is how i found the temperature needed for the actuation in a control environment. but...

Hello all, I am trying to heat a wire (nitinol, shape memory alloy, or nickel titanium). Well my problem here is that i need to heat the wire with a DC current from the wall outlet, usually generate 110 volts but using a AC to DC converter to generate approximently 20 volts, and need a...