All Questions
Tagged with magnet hall-effect
9 questions
3
votes
3
answers
251
views
Deflection of current in a metal plate conductor
If I have a metal plate (square in shape) and an electric current moves from one side to the other. I understand that most of the current will take the path of least resistance but all paths will be ...
- 31
0
votes
1
answer
39
views
Why is there a potential difference between VCC and Output pins of A3144 hall sensor?
When we bring a magnet near the A3144 sensor the PD between output and GND goes to zero but how come does the PD between output and VCC becomes equal to the PD of VCC and GND. Also when the magnet ...
3
votes
1
answer
514
views
Why does a Hall sensor use a solid magnet?
I have disassembled two motor circuits that use a Hall sensor. One is a cooling fan blower and the other is a 230 VAC motor.
The blower has a brushless motor and has its Hall sensor on the stator ...
- 191
0
votes
0
answers
64
views
Making an automated chessboard [duplicate]
I want to create an automated chessboard. At the moment, I'm making the project and deciding what technology to use to detect which piece is at what position and how to move them. I'm not so skilled ...
- 43
4
votes
2
answers
200
views
Maintaining constant magnetic field strength with temperature
We use SmCo magnets to create a field strength of around 300mT. We choose this material, rather than NdFeB because the former has a much smaller change in field with temperature. For SmCo it is (...
- 14.3k
0
votes
1
answer
814
views
How to detect a magnetic field from a distance?
I want to detect a magnetic field, like those of small neodymium magnets, from at least 6 inches away (the further the better, I'd like at least a foot but I won't ask for too much). I'd like to do ...
0
votes
1
answer
66
views
Boosting the Analogue Response of a Sensor
I have a A1308KUATN-9-T Hall Effect sensor with the following sensitivity (from the data sheet):
As you can see, the sensitivity comes to about 9mV per Gauss on average.
My calculations (see below ...
- 787
1
vote
2
answers
208
views
Tiny Magnet Sensor Switch
I know just enough about electronics to do the occasional Arduino or Raspberry Pi project, as long as I don't have to understand too much of what's going on. I am a software guy who dabbles in ...
- 13
0
votes
0
answers
88
views
Falling Marble Sensor
I'm really building a sort of Rube Goldberg machine that students will assemble in order to guide a falling ball down through a series of gates/openings, where I need to detect when they're successful ...
- 101