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 Re: Well, that's two strikes lopatir3-Feb-20 2:46 lopatir 3-Feb-20 2:46
 Re: Well, that's two strikes OriginalGriff3-Feb-20 2:52 OriginalGriff 3-Feb-20 2:52
 Re: Well, that's two strikes lopatir3-Feb-20 2:38 lopatir 3-Feb-20 2:38
 Re: Well, that's two strikes CPallini3-Feb-20 4:14 CPallini 3-Feb-20 4:14
 Re: Well, that's two strikes honey the codewitch3-Feb-20 5:16 honey the codewitch 3-Feb-20 5:16
 Re: Well, that's two strikes honey the codewitch3-Feb-20 5:15 honey the codewitch 3-Feb-20 5:15
 Re: Well, that's two strikes dandy723-Feb-20 8:56 dandy72 3-Feb-20 8:56
 maths question Joan M2-Feb-20 23:38 Joan M 2-Feb-20 23:38
 Hi all, I need help in a math issue: Let's say I have 3 measuring devices which give me a distance. Mechanically those 3 sensors are mounted more or less in the right position, but we can't be sure of the angle neither position the measuring devices are mounted. I have 3 Mastering parts (3 circumferences of a known radius) that I can mount into the machine at any moment and that I want to use to calibrate the system. The measuring error of the 3 measuring devices can be dismissed. this is a small diagram to represent the problem: https://i.stack.imgur.com/a2AyG.png[^] 2 known master circumferences give me a distance [d1] between circumferences (d1 = radius 1 - radius 2). For each circumference the sensor will give me a different measure m1 and m2. Given the difference between r1-r2 and m2-m1 could I find the angle in which the measuring device is mounted? Summarizing: 2 master circumferences mounted in the same center. 3 external measuring devices mounted completely unaligned with the center. I don't know the measuring devices position. The red lines in the drawing are the vector lines the measuring device measures would be placed into. The real measures (in this drawing) would be the distance from the sensor to the position where the red line crosses a circle. Any help will be welcome... Thank you all...modified 3-Feb-20 10:43am.
 Re: maths question Richard MacCutchan3-Feb-20 0:06 Richard MacCutchan 3-Feb-20 0:06
 Re: maths question Joan M3-Feb-20 0:10 Joan M 3-Feb-20 0:10
 Re: maths question Richard MacCutchan3-Feb-20 0:26 Richard MacCutchan 3-Feb-20 0:26
 Re: maths question Joan M3-Feb-20 0:28 Joan M 3-Feb-20 0:28
 Re: maths question Richard MacCutchan3-Feb-20 0:32 Richard MacCutchan 3-Feb-20 0:32
 Re: maths question OriginalGriff3-Feb-20 0:10 OriginalGriff 3-Feb-20 0:10
 Re: maths question Joan M3-Feb-20 0:22 Joan M 3-Feb-20 0:22
 Re: maths question honey the codewitch3-Feb-20 0:20 honey the codewitch 3-Feb-20 0:20
 Re: maths question Joan M3-Feb-20 0:27 Joan M 3-Feb-20 0:27
 Re: maths question honey the codewitch3-Feb-20 0:29 honey the codewitch 3-Feb-20 0:29
 Re: maths question Joan M3-Feb-20 0:31 Joan M 3-Feb-20 0:31
 Re: maths question honey the codewitch3-Feb-20 0:34 honey the codewitch 3-Feb-20 0:34
 Re: maths question Kornfeld Eliyahu Peter3-Feb-20 0:33 Kornfeld Eliyahu Peter 3-Feb-20 0:33
 Re: maths question Joan M3-Feb-20 0:35 Joan M 3-Feb-20 0:35
 Re: maths question Kornfeld Eliyahu Peter3-Feb-20 1:05 Kornfeld Eliyahu Peter 3-Feb-20 1:05
 Re: maths question Joan M3-Feb-20 1:09 Joan M 3-Feb-20 1:09
 Re: maths question Kornfeld Eliyahu Peter3-Feb-20 1:24 Kornfeld Eliyahu Peter 3-Feb-20 1:24
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