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conrad
conrad
@conrad
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Joined: July 13, 2012 4:20 am
Topics: 18 / Replies: 497
Topic
Replies: 12
Views: 979
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RE: World's Smallest Traverse? good misclose too.

> Way cool Conrad, you have stepped into the world of metrology 🙂 > Thanks gschrock, I'm a practicing licensed/registered cadastral surveyor, ...

12 years ago
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RE: World's Smallest Traverse? good misclose too.

World's Smallest Traverse? Plotted Error Ellipses> > One thing I've been meaning to test in Star*Net is whether adding one more target at nomina...

12 years ago
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RE: World's Smallest Traverse? good misclose too.

World's Smallest Traverse? Plotted Error EllipsesThanks Kent, it looks like a good result.I will try and get some results with the compensator on. I t...

12 years ago
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RE: World's Smallest Traverse? good misclose too.

Just Would Like To Confirm His CalculationsHello Vern,I don't need to add to Kent's description of the procedure. He has understood it exactly. I just...

12 years ago
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RE: World's Smallest Traverse? good misclose too.

> Explain your tilting procedure and how you determined 2 minute tilt.> Paul, The tilt was read straight off the electronic bubble display whil...

12 years ago
Topic
Replies: 30
Views: 1304
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RE: Tribrach testing - Part 2

> Don't forget to use these hours for your continuing professional development program. > > When I start to hear sub-millimeter (down to 0.1m...

12 years ago
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RE: Tribrach testing - Part 2

> > You've laid out a clever idea.when I conceived the idea of how to move the instrument in controlled sub millimetre incrementsI was probably ...

12 years ago
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RE: Tribrach testing - Part 2

these are the measured angular displacements in response to the tilting and subsequent horizontal displacement of the instrument.Here are the angular ...

12 years ago
Topic
Replies: 5
Views: 398
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RE: Accuracy of tribrach clamping

> 2.8 m =~ 10'> > 20" =~ 0.01'/100'> 20" =~ 0.001'/10'> > Get a bigger room with targets set 28 m away.Mate, I will gladly take dona...

12 years ago
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RE: Accuracy of tribrach clamping

No, and that was one of the failings in the method. I should have returned to the starting lug position to make sure my house or the tripod wasn't dri...

12 years ago
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RE: Accuracy of tribrach clamping

MM,0.007 was only one of the components. None of those results show 0.007. Setups 12 and 13 were .021 mm different from the base starting coordinate. ...

12 years ago
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RE: Accuracy of tribrach clamping

I'm going to do the test again some time with a different methodology to better determine the accuracy/repeatability of what I'm doing.

12 years ago
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RE: Accuracy of tribrach clamping

Hello Jim,But this is essentially what I'm doing in reverse. I'm sighting back out to the scale. Any difference in my position should show up as a dif...

12 years ago
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RE: Accuracy of tribrach clamping

> > What was the condition for which 31 was derived?Sorry Kent, I don't understand what you are asking. Condition of what?

12 years ago
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RE: Accuracy of tribrach clamping

Thanks for the good number of responses gents; I appreciate the replies.I neglected to do what a good scientist should do and post all the numbers and...

12 years ago
Topic
Replies: 33
Views: 1295
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RE: TS Pointing Accuracy. attn: Kent (and others)

Target coordinates.Here are some coordinates for you. I think they're decent, but I wouldn't bank on them being in the same position as the day I did ...

12 years ago
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