Hello, I'm looking for Arduino-compatible distance sensors. Specifically, I'm interested in sensors that can accurately determine the point of measurement — knowing exactly where the distance is being measured from is important for my application. I’d really appreciate any recommendations!
Some professional telescopic surveying instruments do that. Very expensive!
What distances? Maybe TOF10120.
That sounds like a job for GPS. How accurate do you need to be?
im currently using VL6180X sensors, but the issue is that the distance measured is from a general area and i don't know the point it is measuring from, which is important for my use case
You don't mention what kind of distances you need to measure.
For very long distances I would go with "laser range finder" module, they have small FOV and visible laser beam to help positioning.
If this is important to be exactly right, and you do not want to do your own work, you must show your application, and show your work.
No you should just read post #4 and reflect on what the OP is actually asking for. He want to know the position he is taking the measurement from.
I agree this is one way... but, I can imagine a case where the Arduino location is irrelevant, and object coordinates (angle, distance) are relevant.. where using a second (and third) device would increase accuracy. Perhaps I am the only one with more than one point of interest in mind. Further... if distance, objects and weather are factors... some range finders are useless.
You might be able to imagine anything but:-
- It is not what the OP wants.
- I do not see how you could do this.
- Yes most outdoor activities can be ruined with the weather.
- Rather than speculate how about some more concrete suggestions about how your suggestions might work?
What distance?
OK, so this was a long time ago, about 1966, but we did basic surveying at school as part of a lesson in applied mathematics. That was before the days of GPS so there was no way to find out where you were actually were.
So the idea was to have a datum point that acted as the the reference to all measurements. So any measurement was relative to this arbitrary datum point.
This relied heavily on the accuracy of the measurements because any errors were cumulative and would distort the surveying plot. But that was how it was done.
This photograph shows the use of a clinometer used to measure angles above and below the horizontal. I am pictured on the right, and the person on the left is Nick Carton who was best man at my wedding ten years later, and whose untimely death last year prompted me to go through my negatives from my school days. This was to show to his family pictures of him they had never seen. Because, like me, he was often the other side of the camera.
