| ??? 09/05/05 20:09 Read: times |
#100631 - The earth magnetism Responding to: ???'s previous message |
Farshid Jafari Harandi said:
can some body make a G (Gauss ?) sensful for me , how much power has a 1 G The earth magnetism, that drives compasses, is about 0.2-0.5 Gauss, depends on region. If you give I ampere current to N turn coil, its magnetic-flux density[T] at the center is, B = u0 x I x N where u0 = 1.26x10-6 [NA-2] 1T (Tesla) = 10000 Gauss Even the ferrite magnet from small DC motor has several hundreds Gauss. Tsuneo |
| Topic | Author | Date |
| Triggering Hall Effect sensors | 01/01/70 00:00 | |
| Comparator | 01/01/70 00:00 | |
| Analog output? | 01/01/70 00:00 | |
| Nope. | 01/01/70 00:00 | |
| Little magnets | 01/01/70 00:00 | |
| Wow ! | 01/01/70 00:00 | |
| Nice link | 01/01/70 00:00 | |
| bar magnets? | 01/01/70 00:00 | |
| bar magnets | 01/01/70 00:00 | |
| Got the point, | 01/01/70 00:00 | |
| The earth magnetism | 01/01/70 00:00 | |
| Made it work ! | 01/01/70 00:00 | |
| BLDC motor, Gear tooth sensor, etc | 01/01/70 00:00 | |
| Geartooth sensors good ;) | 01/01/70 00:00 | |
| Analog output? | 01/01/70 00:00 | |
| speaker magnets | 01/01/70 00:00 | |
| Ditto that | 01/01/70 00:00 | |
| Flux | 01/01/70 00:00 | |
| C like motor magnets | 01/01/70 00:00 | |
| Open-Collector output | 01/01/70 00:00 | |
| I did | 01/01/70 00:00 | |
| How to attach more than one magnet | 01/01/70 00:00 | |
| symmetric placement | 01/01/70 00:00 | |
| photo coupler | 01/01/70 00:00 | |
| Measuring RPM - the software side | 01/01/70 00:00 | |
| Timing routines are alright | 01/01/70 00:00 | |
| Unipolar vs bipolar sensors | 01/01/70 00:00 | |
| try here | 01/01/70 00:00 | |
Thanks for your contribution erik | 01/01/70 00:00 |