Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Detecting 60hz AC Current?

Status
Not open for further replies.

haxor12

New Member
I'd like to build a handheld device which can detect a 60hz AC wire inside of a wall. Any advice/tips on how to do this would be much, much appreciated.

Thanks!
 

MikeMl

Well-Known Member
Most Helpful Member
Go to Home Depot and lay about $10 on the counter. They sell a "stud finder" which includes the 60Hz detector...
 

Boncuk

New Member
Go to Home Depot and lay about $10 on the counter. They sell a "stud finder" which includes the 60Hz detector...

What? So expensive?

They're 1.5 EURO in Germany (US$2.00)!
 

MikeMl

Well-Known Member
Most Helpful Member
What? So expensive?

They're 1.5 EURO in Germany (US$2.00)!

Yeah, I bought mine about 10 years ago while they were made in the USA. The one that they sell today is made in CHINA.
 

MikeMl

Well-Known Member
Most Helpful Member
Thanks for the tips, I was most interested in learning to build one myself :)

Get a small audio transformer. Chisel off the bar on one side of the core to leave an open E.

Hook it to an ic amplifier (opamp or audio amp) with a gain of several hundred, gain optimized at 60 Hz.

Hook it to headphones and/or a meter-rectifier detector circuit.
 

fernando_g

New Member
There are many ways to skin a cat.
Modify a transformer as Mike suggests, or use a linear output Hall efect sensor.
 

RODALCO

Well-Known Member
You can also use a 4017 ic.
wire up to 9 volt battery

Leave input (14) open circuit,
Put 15 cm wire on it as areal.
connect one led to one of the outputs and loop o/p 10 to 1.
The led will flicker at 1/10 of the frequency.

I see if I can find schema for it.
 
Status
Not open for further replies.

Latest threads

EE World Online Articles

Loading
Top