| ??? 09/05/05 02:54 Read: times |
#100581 - Triggering Hall Effect sensors |
Hi,
I've had tested some UGN3113U (Designed by Allegro) Halleffect sensors. but the problem is that they need a big magnet to trigger their output on/off . are there all of the Halleffect sensors need such a heavy magnetic flux to trigger ? maybe this is such a getaway from false triggering by the unwanted magnetic's flowing around ? The magnet i've tested and worked for this sensor was a 6"x9" speaker's magnet (magnet itself is sized at 7cm Diameter and 7mm height)and sensor only changed it's state (L/H) crossing too close between the magnets 'Center' which has a very powerfull magnetic flex. i'm saying this because when i attach a iron to that point i have to use extra force disconecting it. UGN3113U is called 'Digital output' here and there are UGN's with 'Analog output' available here.maybe i have to use those and then use a comparator to set my threshold ? Sorry my searches throught the forum didn't helped me. Thanks in advance |
| 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 |