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From: Chuck Simmons
Organization: You jest.
X-Mailer: Mozilla 4.61 [en] (X11; U; Linux 2.0.33 i586)
Subject: Re: Anyone Need A Laser Power Meter?
References: <3DA32E0D.5D61D562@SpamMeSenseless.us.ibm.com> <email@example.com>
Date: Wed, 09 Oct 2002 02:10:11 GMT
NNTP-Posting-Date: Tue, 08 Oct 2002 19:10:11 PDT
Ed Edmondson wrote:
> Phil & Others,
> Well, it appears I have chosen an unrealistic project. As I stated I am NOT a
> design engineer. Just a fancy kit builder (more or less). I only have the will,
> construction and assembly skills, and ability to obtain the necessary
> companents. That is why I was wondering about a team approach?
> The specs I listed are from a meter I found in an Edmund Scientific catalog.
> The meter itself sells for a tad over $300.00 and does all that I listed in my
> suggested spec. So I know someone has done this before or is a liar. In todays
> scheme of things I have to wonder if these are achievable specs?
> I thought this might be a good idea for a team project from which all could
> benefit. Guess not? I uppose I shall look elsewhere.
You didn't find those specs in the 2002 Edmund Industrial Optics
Catalog. They are pretty much science fiction for one instrument without
a pile of attachments. You can get specs similar to that (but still not
covering above 1 watt) for $2000 or so. I use one that costs about $1000
at work and it is limited to a few tens of milliwatts. It also does not
cover your full wavelength range although a different sensor can be
purchased to extend the wavelength range.
Somewhat less ambitious specifications are possible. The high end of
your power range is problematic. The measurement head would require a
significant development effort. Dropping the top two power ranges would
help a lot.
As to a team effort, there is little to motivate the team. If you work
with lasers, you likely have access to a suitable meter. If you are a
hobbyist, the DVM and solar cell approach is very attractive. I don't
think the team idea works very well for this.
... The times have been,
That, when the brains were out,
the man would die. ... Macbeth
Chuck Simmons firstname.lastname@example.org
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