Auto_Turret

The signal input is 4-20 ma into a DAC, and I'm having a rough time keeping the measured sensor value stable at it's calibrated zero when certain environmental factors cause the sensor to react suddenly for a brief period and then return to it's zero point. Ideally, I'd hope to use the PID function in the embedded software to filter out sudden large spikes from the sensor output, so the measured reading stays 0 unless it sees a stable reading indicating an actual measurement is being taken by the operator.

The error will last anywhere from 1-3 seconds at a time. I've tried a method of filtering the DAC output with software filtering, with limited success...

A normal looking signal during

I posted this where it really belongs, however nobody really subscribes to that sub. I'm posting here for better luck hopefully!

Original Post: That would be me, rather embarrassed. I've been at this only 8 weeks so far as an apprentice, and I really need to get this screw stripping problem of mine under control! For example, I opened up a Piper PA-32 151 this morning for an annual, and managed to have steel 3 screws become stripped on me (out of the hundreds involved), two were sheet metal screws for inspection plates and one was a machine screw for the nose cone. I thought it was normal, but my master mechanic tells me it seems to happen a lot with me (and gave me that shitty look!). Does

I abort a good half of them, because I can say some really fucked up shit.

If I had a 0 to +5v PWM signal controlling the brightness of an LED that draws about 40mA while on over a foot long length of 30 gauge wire, would the wire radiate enough electromagnetic noise to be concerned about? If so, how could it be managed? Thanks for reading!

Here is what I've been able to find: Receptacle: http://www.te.com/catalog/pn/en/1589691-5?RQPN=1589691-5

and

Plug: http://www.te.com/catalog/pn/en/1589056-8?RQPN=1589056-8

Bonus points for: mil spec, able to fit into an inside diameter of Ø .14" :)

Edit: Thank you for all your help guys, you've shown me two more companies I wasn't aware of. I'm still shopping around for one that fits in such a tiny place.