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Re[2]: [ATM] back to longer FL

To: "Vladimir Galogaza" <atm@atmlist.net>
Subject: Re[2]: [ATM] back to longer FL
From: Richard <cnc@cncservo.co.uk>
Date: Wed, 29 Jun 2005 12:27:43 +0100
In-Reply-To: <003e01c57c97$97e1a2e0$500dfea9@vladimirzx1znp>
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Reply-To: Richard <cnc@cncservo.co.uk>
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Hi Vladimir,

Wednesday, June 29, 2005, 10:44:27 AM, you wrote:

VG> If your spherometer has base 90.8 mm, the mirror is 300 mm,  f/5 (F=1500
VG> mm),
VG> and if you can read  dial indicator to +/- 0.01 mm :

VG> Than error in focal length due to +/- 0.01 mm sagita error will be +/- 45
VG> mm.

I make a +/-0.01mm reading error equivelant to a +/-9.2mm error
in the ROC of 3000mm, which gives about 0.31%


-- 

Best regards,
  Richard in the UK



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Follow-Ups:
- Re: Re[2]: [ATM] back to longer FL
  - From: "Bob May" <bobmay@nethere.com>
- Re[3]: [ATM] back to longer FL
  - From: Richard <cnc@cncservo.co.uk>

References:
- Re: [ATM] OT: Desktop RPN calculator
  - From: Ken Hunter <atm_ken_hunter@yahoo.com>
- Re: [ATM] OT: Desktop RPN calculator
  - From: "Don D'Egidio" <djd521@comcast.net>
- Re: [ATM] OT: Desktop RPN calculator
  - From: "Richard Schwartz" <richas@earthlink.net>
- Re: [ATM] OT: Desktop RPN calculator
  - From: James P Crombie <jpcrombie@pei.eastlink.ca>
- Re: [ATM] OT: Desktop RPN calculator
  - From: James P Crombie <jpcrombie@pei.eastlink.ca>
- [ATM] back to longer FL
  - From: "Jan van Gastel" <jhm.vangastel@wanadoo.nl>
- Re: [ATM] back to longer FL
  - From: "Bob May" <bobmay@nethere.com>
- Re: [ATM] back to longer FL
  - From: "Bob May" <bobmay@nethere.com>
- Re: [ATM] back to longer FL
  - From: "Jan van gastel" <jhm.vangastel@wanadoo.nl>
- Re: [ATM] back to longer FL
  - From: "Vladimir Galogaza" <vladimir.galogaza@zg.htnet.hr>

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