Small/Cheap Galvanometer Needed

  • Thread starter Physicist
  • Start date
  • #1
43
0

Main Question or Discussion Point

Hello,

I'm doing an experiment and need a small and cheap galvanometer. Does anyone know where can I find it?

Regards
 

Answers and Replies

  • #2
The Electrician
Gold Member
1,246
152
What do you actually need to measure? A small current or a small voltage? What magnitude?

Does the instrument need to be a ballistic galvanometer, or would a short time constant be ok?
 
  • #3
43
0
A need to detect small currents and indicating the direction of them.

Any galvanometer would be ok.
 
  • #4
The Electrician
Gold Member
1,246
152
How small? A milliampere? A microampere? A nanoampere? A picoampere?
 
  • #5
43
0
I meant small = small in size (not the range).
 
  • #6
The Electrician
Gold Member
1,246
152
You said "A need to detect small currents and indicating the direction of them."

That's "small currents", which has nothing to do with the physical size of the instrument.

How small are the currents you need to detect?
 
  • #7
43
0
microamps or even milliamps would be OK as I can vary the other components.
 
  • #8
The Electrician
Gold Member
1,246
152

Related Threads for: Small/Cheap Galvanometer Needed

Replies
2
Views
2K
  • Last Post
Replies
6
Views
5K
  • Last Post
Replies
1
Views
731
  • Last Post
Replies
9
Views
3K
Replies
10
Views
2K
Replies
8
Views
13K
  • Last Post
Replies
7
Views
2K
Top