I am building a device that can detect compression of a tube, e.g. by stepping on it, pushing a stoller over it, riding a bike over it, etc.
The two sensors I am looking to test out are:
MPX2010GP Info: http://www.farnell.com/datasheets/109247.pdf
MPS20N0040D Info: http://e-radionica.com/productdata/Pressure_Sensor.pdf
I am struggling to identify what kind of tubing I should buy to fit on either of these sensors to test them out, either in terms of inner diameter and also type.
For the MPX2010GP, in the datasheet above, it is case CASE 344B-01. The diagram of that case seems to show that the diameter looks to be 0.188" +/- 0.06", but I think that is the outer diameter of the connector barb and not sure if I should get something to match that dimension or a bit smaller.
For the MPS20N0040D, in the product sheet above, it looks like the diameter is 3mm, and the connector/post is straight (i.e. no barb shape). Not sure if I should get something to match the 3mm exactly, or something that is a little bit smaller and stretch the tube a bit when putting it on the connector.
My key questions are:
1) What type of tubing would you recommend? There is PVC, polyurethane, silicon tubing, etc. What would give the best response (and quickest to compress/recover) of these types? Basically, I am looking for someone to be able to step on it and have it note that it has been compressed, and then quickly go back to zero compression so someone else can step on it immediately after.
2) What inner diameter sized tubing should I get for either of these sensors?
3) Any suggested sourcing for where I can get tubing? My go to is usually ebay and amazon, but if anyone has a suggestion for an alternate I would be appreciative!
Much appreciate any advice! Thanks!!