Hello guys, For a professional project, I have to find a distance sensor which can measure distances from 50 mm to 250 mm minimum with a resolution below 1mm like 0.5mm. I've been looking everywhere and the resolution is never below 1mm for low quality sensors that are often used in arduino proje…

[image] Laser sensors for displacement, distance and position Laser sensors are used for non-contact and precise displacement and distance measurements. They impress in automation, test benches and mechanical engineering.

Thank you for your answer! The sensor looks perfect but the price can't be found without asking a quotation. I'll do so but the sensor may be really expensive. Romain

Search "draw wire encoder" or "digital dial gauge".

There might be a misunderstanding here because I need a wireless distance sensor to determine how far is my object. But thank you for your answer! Romain

[image] Mastod: a distance sensor which can measure distances from 50 mm to 250 mm minimum with a resolution below 1mm like 0.5mm If the measurement must be non-contact, a sensor with that resolution will be very expensive.

I asked my manager to determine the maximum price that we can spend. I found a lot at 10-40$ with 1mm resolution but almost impossible to find below so it seems that we will have to pay the price... I'm still hoping to find a 200$ with 0.5mm resolution. Romain

[image] Mastod: I found a lot at 10-40$ with 1mm resolution Try one, and average some number of readings to see if that improves precision. Let us know what you find. A very rough rule of thumb with sensors is that for each guaranteed factor of 10 improvement in precision, the price goes up…

so 25 centimeter. interesting. Does this look good? It's only the sensor and you will have to put together the circuitry to make it wireless (why would you do that) https://www.mouser.com/datasheet/2/427/vcnl3036x01-2897308.pdf and evidently this part is available on mouser. $4 apiace. Alterna…

[image] cdr_xavier: you will have to put together the circuitry to make it wireless (why would you do that) I'm guessing that "wireless" was just a mistranslation of "contactless".

Very sensitive distance sensor for a project

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jremington August 4, 2022, 2:00pm 6

If the measurement must be non-contact, a sensor with that resolution will be very expensive.

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Very sensitive distance sensor for a project

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