You can buy a very good and sensitive hall effect sensor on eBay for about 14 cents each. The "49E" is linear over a wide range and reacts fast to changing magnetic field and you can power it with a AA battery of cell phone charger. You could do a test installation with just a 2" square of duct tape and then when you find "Tis Spot" use epoxy.
This requires basic circuit design skills, some ability to write signal processing software and some test equipment, certainly a 'scope is needed. I might try. The first step I think might be to mount a 49E on wood or plastic stick and make a magnetic field probe for my scope then I could move the probe around and find where the signal is best
There is a good chance it might not work. If the motor is inside a thick steel case the case might shield the magnetic field. But it looks like an easy experiment and MIGHT even work on brushed motors. The cost is so low it is worth trying and a magnetic probe might be good to have for other uses.
On Sun, Mar 25, 2018 at 5:16 AM, old_toolmaker@yahoo.com [7x12minilathe] <7x12minilathe@yahoogroups.com> wrote:
OK, I think I understand most of what has been said so far. It must then be possible to use a hall effect sensor with to BLDC. Is that correct and can that be used on the mini lathe? Can that be done in a nice tidy fashion?
Chris Albertson
Redondo Beach, California
__._,_.___
Posted by: Chris Albertson <albertson.chris@gmail.com>
| Reply via web post | • | Reply to sender | • | Reply to group | • | Start a New Topic | • | Messages in this topic (60) |
Have you tried the highest rated email app?
With 4.5 stars in iTunes, the Yahoo Mail app is the highest rated email app on the market. What are you waiting for? Now you can access all your inboxes (Gmail, Outlook, AOL and more) in one place. Never delete an email again with 1000GB of free cloud storage.
.
__,_._,___
No comments:
Post a Comment