sending power through long wires

[browniebob]

Good morning all, great forum. Here's my question: I'd like to send power through a few 32 gauge wires for a distance of several thousand feet. How do I figure out the limit on how power-hungry my load can be (it'll be a sensor) and what is a good way to send this power? My background is bioengineering so feel free to dumb down your response! The load will need DC but from some reading I've been doing, that seems like a silly way to send power. Please advise. Also, are there any online references you can suggest which I can read in order to become better grounded in related things, as I'll be doing this more in the future. On the other end of the wires (source side) I'll be able to basically pick any reasonable power source.

Best,
K

 

[BJC]

browniebob
are you looking to continually monitor acceleration or just sense an event? OR a series of events with some time in between. If its an event you could use a capacitor at the load end to act as a battery and some additonal circuitry to generate a pulse or signal. You'll have to get the milliwatt folks here to help you, I've been in 60 cycle and Megawatts since I left LBJ's employ.
I was interested in you problem because long ago and far away I was involved in a similar sounding project. We used # 26 or 28 ( it was long ago)as an intrusion alarm. The wire had a small current and when it broke the interposing relay opened and the light came on. No body notices when aA number 26 or 28 wire broke or wass cut when it was amongst a bunch of #12 barbed wire.