Questions tagged [harsh-environment]

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3
votes
1answer
356 views

Opto-coupled EIA-422 receiver (understanding suggested circuits)

I am looking at a standard for communication of marine electronics (NMEA). The standard is electrically essentially EIA-422 but it prescribes opto-coupled differential receiver pins without connection ...
2
votes
1answer
228 views

Circuit reliability, especially tin solder, under wide temperature range -40 degree to +85 degree

We are trying to have our Lab product work in industry environment. One key factor we are thinking about is the operating temperature, since we have never done any environment test before. Our ...
4
votes
2answers
168 views

Self Contained Temperature Display in Very High Temp Environment

I want to build a temperature sensor + display that will operate in a high temperature environment (routinely 120C, but periodically spiking to 175C, and might be exposed to 350C where it would be ...
0
votes
2answers
194 views

The role of humidity is BSOD and other glitches

For some unknown reason to me hearing aids require dehumidifying. The humidity somehow very significantly interferes with the microphones and other electronics. Daily dehumidifying stops the ...
6
votes
3answers
371 views

Wire for harsh environment

One of the jobs I often have to perform is repairing the infra-red sensing headsets for BattleSports equipment. Basically the headset consists of a pair of IR detectors and red LEDs for indication. ...
10
votes
3answers
875 views

Are there crystals that are tolerant of high pressure?

Are there crystals that are tolerant of high pressure? Or do they all have an open space in their case? A customer wants to use our product in a submarine, immersed in high pressure oil. I ...