Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: alenz on February 18, 2010, 11:17:38 PM

Title: Chinese Digital Caliper Magnetized
Post by: alenz on February 18, 2010, 11:17:38 PM

I have a Chinese digital caliper that the tips have somehow become magnetized.
Question: Will pulling it thru a demagnetizer destroy it?
I’ve tried cautiously putting just the tips in the demagnetizer.  It weakened the magnetism and didn’t seem to affect the operation, but I am a bit leery about demagnetizing the entire caliper.
I posed this question on another forum but no one knew for sure.
Thanks for any info.
Al

Title: Re: Chinese Digital Caliper Magnetized
Post by: Dan13 on February 19, 2010, 02:09:54 AM

Usually they have capacitive sensors (some have resistive I think), so I don't think a magnetic field can harm it. Only way to know for sure is to try it ;)

Daniel

Title: Re: Chinese Digital Caliper Magnetized
Post by: alenz on February 19, 2010, 09:51:16 PM

Hi Daniel, I can’t tolerate magnetized tools so I bit the bullet and gave the calipers the full treatment. Good news, you were right, it didn’t do any harm. And now I can say from experience that they (at least this one example) can be safely demagnetized.
Al

Title: Re: Chinese Digital Caliper Magnetized
Post by: RICH on February 19, 2010, 10:33:50 PM

Come on now, Al..........without the little metallic fuzzes on the calipers i personally would never be able to tell
if the measurements taken were North, South, East or West....... ???   ;D
RICH

Title: Re: Chinese Digital Caliper Magnetized
Post by: Dan13 on February 20, 2010, 01:18:08 AM

Glad it worked out fine for you, Al. And now we have an answer to this question as well :)

Daniel