Re: A laser scanner as an inspection tool ?

From: Bert VandenBerg (bert@hymarc.com)
Date: Mon Nov 16 1998 - 15:35:18 EET


baram wrote:

 I want to know whether laser scanners are being used for inspection of
> the part.
> Does a laser scanner fit to inpection?
> Thank you in advance.

The short answer is yes, laser scanning systems are being used for
inspection.

Some of the reasons for using laser scanners are:
- faster data acquisition
- less path planning requirements (faster inspection times)
- non-contact measurment.
- application programs such as Imageware's Surfacer and Innovmetric's
Rapid Inspection module are suited to processing laser scanner data, and
providing fast inspection feedback.

However, laser scanners have their limitations which may include:
- optical sensors are sometimes less accurate than contact sensors (this
can be partially offset by "averaging" the substantially more dense data
available from scanning systems
- laser scanning systems may not be able to measure (see) all features
requiring inspection.

--
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

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