Re: Sensors in Motion Launches MEMS-Based Inertial Nav System

From	Jackpol11@hotmail.com
Newsgroups	sci.physics, sci.physics.relativity
Subject	Re: Sensors in Motion Launches MEMS-Based Inertial Nav System
Message-ID	<p7blsa13b41lb3ujm2rb5dakejn707ibfv@4ax.com> (permalink)
References	(7 earlier) <kehfsah4rnit0u3al1hura5kkjpdd16cbh@4ax.com> <mq8irl$868$1@dont-email.me> <bpsfsat6604dduda952ug3b228m03k61m4@4ax.com> <mq9p6s$kl0$1@dont-email.me> <dj5ksap8amodp05bens76j9bb3so90nfbl@4ax.com>
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Date	2015-08-11 22:20 -0400

Cross-posted to 2 groups.

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On Tue, 11 Aug 2015 11:38:04 -0400, Jackpol11@hotmail.com wrote:

>On Mon, 10 Aug 2015 11:01:50 +0200, Poutnik <Poutnik4NNTP@gmail.com>
>wrote:
>
>>On 08/10/2015 02:43 AM, Jackpol11@hotmail.com wrote:
>>>>
>>>> Why do you think trigonometric functions
>>>> are not involved in analogue systems ?
>>>> They are, and even better than in digital ones,
>>>> as they are analogue continuous functions.
>>>>
>>
>>> I think my work here is done.
>>> John Polasek
>>
>>I hope not.
>>
>>Do not get me wrong, John ( you would be Jan Polášek here ).
>>
>>I fully respect your big experience with gyroscope systems.
>>
>>I just wanted to point out that not all
>>is like them today, in both high and low ends.....
>That reminds me of the time (1972?) I was hired by a company  to
>digitize their analog aircraft something simulator. There was a very
>large schematic with  op-amp integrators (they may have used homemade
>op-amps). There were about a half-dozen resolvers and the guy
>explained to me they didn't know what to do with them.
>So I figured out the proper matrix equations for each resolver that
>could then be used in the digital version.
>But, notice, the thing was working before I wrote any equations. Just
>put a resolver wherever there's an axle that turns and the job is
>done. 
>The originating resolver forms a magnetic vector V, from the inputs X
>and Y (like you would do with a straight edge on paper) and that same
>magnetic V is properly dissected by the secondary coils into the 2
>true geometric components in the next coordinates set offset by that
>angle. 
>(redundancy noted)
>John Polasek
>AKA chopper stabilizers, to eliminate drift.
These inertial guidance systems  I worked on,  all of the signals were
400 cycle AC which had to be rectified before integrating, then
possibly re-modulated for further use. The synchros and resolvers
required 400 cps. With this frequency less iron was required in the
transformers, but higher frequencies would be bothered by the
capacitance of the coils, approaching self resonance.
These inertial guidancesystems went into ICBMs that stood vertically
with the inertial platform on top. To align the platform into the
plane of the target, a theodolite beam was sent up to a Porro prism
and adjustments were made. This prism is sensitive only on one axis.

I was given the task ofcalculating the azimuth errors resulting from
tilts on the pitch and roll axes (which were supposedly neutralized
out). 
As a result I finally wrote a complicated paper in the Journal of the
Optical Society JOSA October 1967 "Matrix analysis of gimbaled mirror
and prism systems)". (For $45 you can get a copy.) 
That is certainly one of the drawbacks of the "peer-reviewed" system.
Essentially nobody gets to see it.
John Polasek

Thread

Sensors in Motion Launches MEMS-Based Inertial Nav System Sam Wormley <swormley1@gmail.com> - 2015-07-25 20:23 -0600
  Re: Sensors in Motion Launches MEMS-Based Inertial Nav System kefischer <emoneyjoe@iglou.com> - 2015-07-26 15:40 -0400
    Re: Sensors in Motion Launches MEMS-Based Inertial Nav System wobbly <wobbly@dont-email.me> - 2015-07-28 22:14 +0000
  Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-07-26 23:20 +0000
    Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Lofty Goat <rlwatkins@gmail.com> - 2015-07-26 23:46 -0500
  Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Lofty Goat <rlwatkins@gmail.com> - 2015-07-26 23:44 -0500
    Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-07-27 22:52 +0000
      Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-07-28 16:41 -0400
        Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-01 12:32 +0200
          Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-02 15:51 -0400
            Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-02 20:29 +0000
            Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-03 01:12 +0200
              Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-03 00:07 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-03 12:17 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-08-03 09:36 -0700
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <Poutnik4NNTP@gmail.com> - 2015-08-03 19:00 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Bohuš Matuška <bohu@paranetnet.net> - 2015-08-03 18:01 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <Poutnik4NNTP@gmail.com> - 2015-08-03 20:31 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Bohuš Matuška <bohu@paranetnet.net> - 2015-08-03 19:28 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-03 18:01 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-03 14:52 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-03 23:00 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-06 10:36 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-07 07:58 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-07 08:35 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-07 10:13 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-08 00:26 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-07 22:25 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-08 07:14 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-08 05:44 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Emmerich Schultheiß <emme@noemail.thx> - 2015-08-08 13:23 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-08 10:16 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-08 10:34 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-09 10:47 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-09 17:09 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Emmerich Schultheiß <emme@noemail.thx> - 2015-08-09 17:24 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-09 17:56 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-09 20:05 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-09 18:44 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Emmerich Schultheiß <emme@noemail.thx> - 2015-08-09 19:08 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <Poutnik4NNTP@gmail.com> - 2015-08-10 10:49 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-09 19:53 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-09 18:47 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-09 17:52 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-10 00:07 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-09 22:33 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Felipe Delgado <fd@spreadspectrum.org> - 2015-08-09 22:55 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Felipe Delgado <fd@spreadspectrum.org> - 2015-08-09 22:58 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <Poutnik4NNTP@gmail.com> - 2015-08-10 10:54 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-10 17:38 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Felipe Delgado <fd@spreadspectrum.org> - 2015-08-10 18:07 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-11 01:11 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-10 23:28 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-09 20:43 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <Poutnik4NNTP@gmail.com> - 2015-08-10 10:55 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <Poutnik4NNTP@gmail.com> - 2015-08-10 11:01 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-10 09:32 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-10 17:42 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-11 11:38 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-11 23:00 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-11 22:27 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-11 22:12 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Tom Roberts <tjroberts137@sbcglobal.net> - 2015-08-12 23:32 -0500
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-13 07:32 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Odd Bodkin <bodkinodd@gmail.com> - 2015-08-13 07:30 -0500
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Mahipal <mahipal7638@gmail.com> - 2015-08-13 05:50 -0700
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Felipe Delgado <fd@spreadspectrum.org> - 2015-08-13 13:11 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Odd Bodkin <bodkinodd@gmail.com> - 2015-08-13 08:23 -0500
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Felipe Delgado <fd@spreadspectrum.org> - 2015-08-13 13:28 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <Poutnik4NNTP@gmail.com> - 2015-08-13 15:20 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Felipe Delgado <fd@spreadspectrum.org> - 2015-08-13 13:22 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Odd Bodkin <bodkinodd@gmail.com> - 2015-08-13 07:24 -0500
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <Poutnik4NNTP@gmail.com> - 2015-08-13 15:10 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Felipe Delgado <fd@spreadspectrum.org> - 2015-08-13 13:15 +0000
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <Poutnik4NNTP@gmail.com> - 2015-08-13 15:21 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-13 16:26 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Odd Bodkin <bodkinodd@gmail.com> - 2015-08-13 16:35 -0500
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-13 21:52 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Odd Bodkin <bodkinodd@gmail.com> - 2015-08-14 07:42 -0500
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-14 14:04 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System dsr@mail.lns.cornell.edu (Daniel S. Riley) - 2015-08-13 12:27 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-11 22:20 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-09 11:39 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-09 12:42 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-11 14:40 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Poutnik <poutnik4nntp@gmail.com> - 2015-08-11 22:35 +0200
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Jackpol11@hotmail.com - 2015-08-12 21:56 -0400
                Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-03 17:57 +0000
      Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2015-07-30 11:03 -0400
        Re: Sensors in Motion Launches MEMS-Based Inertial Nav System Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2015-08-04 03:10 -0400
          Re: Sensors in Motion Launches MEMS-Based Inertial Nav System jimp@specsol.spam.sux.com - 2015-08-04 17:24 +0000
    Re: Sensors in Motion Launches MEMS-Based Inertial Nav System wobbly <wobbly@dont-email.me> - 2015-07-28 22:01 +0000
  Re: Sensors in Motion Launches MEMS-Based Inertial Nav System "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-08-03 09:34 -0700

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