Thank you for your good opinion in advance Mr.Vandenberg.
I found something strange in chart you had presented.
I wonder how I can understand the accuracy of 3D scanner
is 10 - 1000 micron.
1000 micron shoud be 1 mm.
It's a terrible acccuracy viewing from my experience.
I would say '10 - 1000 micron' should be '10-100 micron'.
What do you think about this?
Any reply you can give me would be greatly appreciated..
Best regards.
PS: Would you please give me some informations about Hymarc
3D digitizing devices?
> From bert@hymarc.com Mon Jan 4 23:34:37 1999
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> Date: Mon, 04 Jan 1999 09:31:26 -0500
> From: Bert VandenBerg <bert@hymarc.com>
> Organization: Hymarc Ltd.
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> To: MIN CHANG-SHIK <mcs9413@lge.co.kr>
> Subject: Re: 3D Laser Digitizer(Scanner) for mold inspection
> References: <981225180617A3493369@pyungtaik.lge.co.kr>
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>
> MIN CHANG-SHIK wrote:
> >
> > Can 3D laser scanner be used as an inspection tool like CMM ?
>
> companies such as Process Design Technologies (PDT) offer an inspection
> service based on laser scanning. Surfacer's verdict program is designed
> to provide inspection results based on (laser)scan data.
>
> Yes 3D laser scanners can be used for inspection.
>
> However, there are differences between touch probing and laser scanning
> technology. For the purposes of stimulating discussion, I offer the
> following (rough) chart.
>
> topic touch probing laser scan
> -----------------------------------------------------------------------
> planning online, offline, CAD based usually on-line
> measurement speed slow fast
> absolute accuracy (est) 2->25 um 10-1000 um
> data analysis Least squares, feature based global comparison
> rate of technology change slower faster
> ------------------------------------------------------------------------
>
> Note these opinions do not neccessarily reflect that of Hymarc Ltd.
>
> --
> Bert van den Berg E-mail: bert@hymarc.com
> Hymarc Ltd. http://www.hymarc.com
> 35 Antares Drive Tel: (613) 727-1584
> Ottawa, Ontario K2E 8B1 Fax: (613) 727-0441
>
Chang-Shik,Min
Precision Technology Center,LG-PRC / LG Electronics Inc.
19-1,Cheongho-Ri,Jinwuy-Myon,Pyungtaek(451-713), R.O.Korea
(Voice)+82-333-660-7090
(Fax)+82-333-660-7384
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