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conrad
conrad
@conrad
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Joined: July 13, 2012 4:20 am
Topics: 18 / Replies: 497
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RE: TS Pointing Accuracy. attn: Kent (and others)

Sets 7 - 13 (modelling instrument centering)Yes I am recording in grads to make my excel calcs easier.

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

Sets 7 - 13 (modelling instrument centering)I'm going to get distances to my targets and approximate setup tonight if that helps the modelling.I have ...

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

Sets 7 - 13 (modelling instrument centering)Nice.So, what now is your best estimate on what precision/accuracy this whole operator/instrument/target s...

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

Target OrderThey are tight sets right there.

12 years ago
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RE: Heat Shimmer with Robotics

In my experience for single shots they seem worse. You can sample the sight with your eye for longer to get a better idea of where the target is.Howev...

12 years ago
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RE: Throw your general IT questions this way

Win 7 basic reinstallHello,I have a netbook running windows 7 basic. I want to upgrade to a SSD to give the old piece of s### a bit more kick. The uni...

12 years ago
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RE: HP CALCULATORS

Well, I sure geeked it up good and proper when I got my first HP-48. I compared the clock of the HP-48 against a time standard a week or so after I sy...

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

Dimensional Change of TargetI analysed the geometry of my test range. 0.5mm movement in the station towards or away from the wall would grow or shrink...

12 years ago
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RE: Women in surveying

My significant other was a graduate surveyor and had to deal with misogynists in several of her workplaces. It was frequently not very pleasant for he...

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

Target OrderOk the setup and lug order is:setup 1- Lug positions A B Csetup 2- lug position Csetup 3- lug positions C B Asetup 4- lug positions A B Cs...

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

Dimensional Change of Target> > One way to deal with that question would be to express the data of each set as the apparent distances between th...

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

Dimensional Change of TargetActually it was a cooler day than usual, mostly overcast. No A/C that day. I have also retracted my earlier analysis of th...

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

Star*Net ResidualsDid you notice that some arcs show a clear trending in the residuals from negative to positive or positive to negative? R2, R8, R10 ...

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

Not better than 1"I retract my earlier analysis. I did not graph what I thought I graphed.I re-graphed it and it appears very much random now.

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

Could be better than 1"This is a graph showing the rounds in chronological order. It shows the residuals from each angle between the targets from the ...

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

> One important feature of the test array that Conrad used is that it is generally fairly insensitive to centering errors. His targets all fall on ...

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

Standard Error of a Direction = 1.0"I going to do another test. The next one will have targets spaced in the Hz regions of 0-30 degrees and 180-210 de...

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

Standard Error of a Direction = 1.0"> > Yes, I think it's a very interesting demonstration. The only remaining bit is to try to model the likely...

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

Standard Error of a Direction = 1.0"Cheers Kent. That was my one and only attempt at a starnet file.So my SD for a 1-FACE angle should be 1.4" for thi...

12 years ago
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RE: TS Pointing Accuracy. attn: Kent (and others)

Standard Error of a Direction = 1.0"> > While I realize that rotating the instrument in the tribrach is an easy way to use all quadrants of the ...

12 years ago
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