- #1
BradyChan7
- 4
- 0
I have what I thought should be a relatively simple problem, but a quick trip around the Google makes me wonder. It might be easier to just ask some real humans for once...
I'm working with Hall Effect sensors and neodymium (NIB) magnets. I basically know the strength of my magnets, and the sensitivity range of my Hall Effect Sensors, but I wanted to know if there was a way to calculate how close the magnet had to be to the Hall Effect Sensor to make it come on.
In other words, I know that my magnets are rated at about 2,000 Gauss (I thought Gauss was a unit depending on distance, though, so if I'm right about that, I don't know what distance these are measured at), and I know that my Hall Effect Sensors should activate in the presence of a 5 Gauss B-field. I've noticed that I have to get my magnets really close to the sensors to get them to come on.
I was wondering how I could calculate (no need for a lot of precision, just a good estimate within a cm or two) how close I need to bring the magnet to the Hall Effect sensor to get it to come on.
I've seen a similar question involving a bar magnet, but I'm not sure if it applied. For clarification, the Hall Effect sensors we have are polarized, so I'm bringing the magnet closer to the sensor with the proper side facing it.
Thank you to anyone who takes the time to read this. Even the smallest advice will be appreciated.
I'm working with Hall Effect sensors and neodymium (NIB) magnets. I basically know the strength of my magnets, and the sensitivity range of my Hall Effect Sensors, but I wanted to know if there was a way to calculate how close the magnet had to be to the Hall Effect Sensor to make it come on.
In other words, I know that my magnets are rated at about 2,000 Gauss (I thought Gauss was a unit depending on distance, though, so if I'm right about that, I don't know what distance these are measured at), and I know that my Hall Effect Sensors should activate in the presence of a 5 Gauss B-field. I've noticed that I have to get my magnets really close to the sensors to get them to come on.
I was wondering how I could calculate (no need for a lot of precision, just a good estimate within a cm or two) how close I need to bring the magnet to the Hall Effect sensor to get it to come on.
I've seen a similar question involving a bar magnet, but I'm not sure if it applied. For clarification, the Hall Effect sensors we have are polarized, so I'm bringing the magnet closer to the sensor with the proper side facing it.
Thank you to anyone who takes the time to read this. Even the smallest advice will be appreciated.