Aerospace Automotive Medical

Resources for high reliability environments

Misc

Aerospace

• https://www.eevblog.com/forum/metrology/ic-voltage-reference-humidity-effect-report-pdf/ -

humidity can cause errors in voltage references and op amps due to swelling of the potting epoxy.
This means with any oven testing, you may also want to control the humidity.
It's amazing what we can tell with electronic components, yet the heart doctor has hardly a clue why
someone had a heart attack sooner rather than later.
Uptake of moisture depends on relative humidity. I'm sure this has applications for space whereas humidity
in a device which goes to the vacuum may be dangerous.
12 bit or higher adc type devices can be affected.
Using an embedded strain gauge on the sample to detect changes.
In this respect, you might be able to use these chips, to detect how much swelling changes have occurred if you can characterize them. Not surprisingly, this study was done by a space agency.

Automotive

• https://www.ti.com/lit/ug/tiduc41/tiduc41.pdf Automotive power supply application note. Only lists one product.
• https://www.eevblog.com/forum/beginners/max9926-struggling-with-abs-readings-at-low-speeds/msg5725651/?topicseen#msg5725651 using a dc blocking cap to allow wheel sensor information to passthrough