5 ms·

Range is 10/40/60cm with accuracy 1/2/3mm (apparently there is some kind of scaling factor). I wonder where such short range measurements with such a low accura

Range is 10/40/60cm with accuracy 1/2/3mm (apparently there is some kind of scaling factor). I wonder where such short range measurements with such a low accuracy are useful.

cimnine 10y ago
I could imagine this for collision avoidance in a very small UAV, e.g. a vacuuming robot.
- cptskippy 10y ago
  The 3m range with ~3mm accuracy is more than enough for large object alignment as well. I've got the VL53L0X being used as a car park sensor in my garage, it's a very complicated version of a tennis ball on a string.
ThatGeoGuy 10y ago
> Range is 10/40/60cm with accuracy 1/2/3mm (apparently there is some kind of scaling factor). The "accuracy" you mention is really what they call "Range Resolution", which is more a measure of precision than accuracy. The range (as well as this resolution) is determined by the modulation frequency of the device, which I presume is the setting you switch to change modes. > I wonder where such short range measurements with such a low accuracy are useful. Another commenter mentioned autonomous vehicles (small vaccum robot), however I think outside of that use case there's really not much. Honestly for most things at that kind of range, I'd probably prefer to use a PMD camera like the Pico Flexx [1][2]. It's a lot more expensive, but you get a much better range, higher frame rate, and takes full images instead of just a single range in front of whatever it is you're building. Granted the range is 0.1-4m because the modulation frequency is fixed, but for most applications where you want autonomous ranging I can't see this being too much of a problem. [1] http://pmdtec.com/picoflexx/downloads/PMD_RD_Brief_CB_pico_flexx_V0201.pdf http://pmdtec.com/picoflexx/downloads/PMD_RD_Brief_CB_pico_f... [2] http://pmdtec.com/picoflexx/ http://pmdtec.com/picoflexx/
cptskippy 10y ago
The sensors are great for dynamic alignment and calibration. There are plenty of situations where ~3mm accuracy is perfectly fine. In many situations if you can get parts with-in 3mm of one another, mechanical self alignment mechanisms can take you the rest of the way.
doublerebel 10y ago
Extremely useful for AR. This is the range I'm working in now, and the range Meta glasses are designed for.
gruturo 10y ago
A roomba? A VR headset? Tesla's model X gull wing doors?
detaro 10y ago
That's comparable to (and probably more precise than) cheap ultrasonic sensors or traditional optical distance sensors, so probably as a different choice or optimization everywhere those are used.
HeyLaughingBoy 10y ago
10cm range with 1mm accuracy is 1%. That's plenty for many applications. I can immediately think of one where an ultrasonic distance sensor is being used and far less resolution is required. In fact, were it not for the dirty environment that the ultrasonic sensor is working in (under a vehicle), I'd think this would be a good replacement.

Range is 10/40/60cm with accuracy 1/2/3mm (apparently there is some kind of scaling factor). I wonder where such short range measurements with such a low accuracy are useful.

cimnine 10y ago

I could imagine this for collision avoidance in a very small UAV, e.g. a vacuuming robot.

cptskippy 10y ago
The 3m range with ~3mm accuracy is more than enough for large object alignment as well. I've got the VL53L0X being used as a car park sensor in my garage, it's a very complicated version of a tennis ball on a string.

ThatGeoGuy 10y ago

> Range is 10/40/60cm with accuracy 1/2/3mm (apparently there is some kind of scaling factor). The "accuracy" you mention is really what they call "Range Resolution", which is more a measure of precision than accuracy. The range (as well as this resolution) is determined by the modulation frequency of the device, which I presume is the setting you switch to change modes. > I wonder where such short range measurements with such a low accuracy are useful. Another commenter mentioned autonomous vehicles (small vaccum robot), however I think outside of that use case there's really not much. Honestly for most things at that kind of range, I'd probably prefer to use a PMD camera like the Pico Flexx [1][2]. It's a lot more expensive, but you get a much better range, higher frame rate, and takes full images instead of just a single range in front of whatever it is you're building. Granted the range is 0.1-4m because the modulation frequency is fixed, but for most applications where you want autonomous ranging I can't see this being too much of a problem. [1] http://pmdtec.com/picoflexx/downloads/PMD_RD_Brief_CB_pico_flexx_V0201.pdf http://pmdtec.com/picoflexx/downloads/PMD_RD_Brief_CB_pico_f... [2] http://pmdtec.com/picoflexx/ http://pmdtec.com/picoflexx/

cptskippy 10y ago

The sensors are great for dynamic alignment and calibration. There are plenty of situations where ~3mm accuracy is perfectly fine. In many situations if you can get parts with-in 3mm of one another, mechanical self alignment mechanisms can take you the rest of the way.

doublerebel 10y ago

Extremely useful for AR. This is the range I'm working in now, and the range Meta glasses are designed for.

gruturo 10y ago

A roomba? A VR headset? Tesla's model X gull wing doors?

detaro 10y ago

That's comparable to (and probably more precise than) cheap ultrasonic sensors or traditional optical distance sensors, so probably as a different choice or optimization everywhere those are used.

HeyLaughingBoy 10y ago

10cm range with 1mm accuracy is 1%. That's plenty for many applications. I can immediately think of one where an ultrasonic distance sensor is being used and far less resolution is required. In fact, were it not for the dirty environment that the ultrasonic sensor is working in (under a vehicle), I'd think this would be a good replacement.