Guys is there any sensor online that is small to fit between two finger joints and calculate how much degrees its turned, i am lanning to make a glove that has ability to see at what position fingers are turned to.

I thaught of potentiometer but its too large to fit between finger joints, also what i men to say is that i am making a glove like thing where a sensor is needed which can be attached at finger joints to see ho much is it turned

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michaelkellett 7 days ago +3

https://duckduckgo.com/?t=ffab&q=HOW+DO+SENSOR+GLOVES+WORK&atb=v101-1&ia=images&iax=images&iai=https%3A%2F%2Fpub.mdpi-res.com%2Fsensors%2Fsensors-23-06693%2Farticle_deploy%2Fhtml%2Fimages%2Fsensors-23…
SensoredHacker0 7 days ago +2

accelorometer, inclinometer, gyroscopes can all do this. depending on how you do joint articulation you may be able to use a magnomometer, or encoder. then you can also make your own sensors with that…
Aniket_kumar_raj 7 days ago in reply to SensoredHacker0 +1

good idea but why not flex sensor ,its more good if i want it to directly touch to skin ,it wont even give a scratch or cut on skin

michaelkellett 7 days ago

https://duckduckgo.com/?t=ffab&q=HOW+DO+SENSOR+GLOVES+WORK&atb=v101-1&ia=images&iax=images&iai=https%3A%2F%2Fpub.mdpi-res.com%2Fsensors%2Fsensors-23-06693%2Farticle_deploy%2Fhtml%2Fimages%2Fsensors-23-06693-g003.png%3F1690373659

There is a lot of information about this on the web.

MK
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SensoredHacker0 7 days ago

accelorometer, inclinometer, gyroscopes can all do this.
depending on how you do joint articulation you may be able to use a magnomometer, or encoder.
then you can also make your own sensors with that packing foam, and conductive thread.
you could read the capacitance changes, or...
well there is a lot of things you could do, without further detail on constriction, it s hard to say.
is it joint position in 3d space?

** WUT WUT?!? **
>> Gang signs detected!
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Aniket_kumar_raj 7 days ago in reply to SensoredHacker0

good idea but why not flex sensor ,its more good if i want it to directly touch to skin ,it wont even give a scratch or cut on skin
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robogary 7 days ago in reply to Aniket_kumar_raj

There are always multiple ways to approach a solution. Give flex sensor a test and let us know result. Which flex sensor are you considering ?

I was thinking a micro absolute encoder , but there would need to be an rigid exo-skeketon. The sensor accuracy wearing gloves or other attachment would have inherent slippage.

Solid state sensors like magnetometers, imu, gyros involve alot of calibration, calculation, and proper filtering, which why I only use them when they are the best solution.
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Aniket_kumar_raj 7 days ago in reply to robogary

ok, i will use the sensor as u suggest so which is most perfect sensor in this case
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beacon_dave 7 days ago

I recall that there are some sensor glove based student projects listed here:

https://people.ece.cornell.edu/land/courses/ece4760/FinalProjects/
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dougw 7 days ago

I have one of these Essential Reality P5 gloves. This video from LGR provides some insight into what kind of performance you might achieve....

https://www.youtube.com/watch?v=wOSmrpw89SI
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dougw 7 hours ago

Another commercial example...

QD023 Motion-Sensing Glove for Robot Control – ACEBOTT
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beacon_dave 7 hours ago

Aniket_kumar_raj said:
I thaught of potentiometer but its too large to fit between finger joints

Perhaps take a look at some of the small SMD ones ?

Bourns do some thin rotary position sensors:
https://www.bourns.com/data/global/pdfs/3382.pdf
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SensoredHacker0 6 hours ago in reply to robogary

flex sensors are a thing, they are prone to mechanical failure.
you can make them, for pennies, which is what I was trying to suggest.
IDK, I cant find the videos of mine right now.
well, if you're going to choose the method prone to mechanical breakage, dont go with 5$ sensors.
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