college project

[dalejam]

Im a mechaincal engineer student and Im looking for help from people on my project as the lecturer that deals with electrical engineering has been off sick for the past few weeks and might be for the foreseeable future. So while my college deals with that i need to move with my project on rachet screwdrivers and some improvement i think i could be made to them but Im stuck at this hurdle which is for one of the experiments i need a electrical sensor that can record each linear movement of the screw as it is turn by the screwdriver.

What type of electrical sensor would be best to measure this? I just need to be pointed in the right direction so i can reasearch and build this experiment.

thanks

 

[sreid]

I'd suggest a Rotary Hall Effect Position Sensor such as below. Read the data sheet for details.

http://www.digikey.com/product-detail/en/ams/AS5050A-BQFM/AS5050A-BQFMTR-ND/4759748

 

[IRstuff]

A rotary sensor, however, will require precise knowledge of the pitch.

Perhaps some variant of a proximity sensor:

https://www.google.com/#q=distance+sensor+through+wood+

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

faq731-376 forum1529 Entire Forum list

http://www.eng-tips.com/forumlist.cfm