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by GuB-42 2222 days ago
It looks a like a binary LVDT [1] sensor.

These are linear sensors that work by measuring the output of a transformer with a movable core. They have a reputation for being extremely reliable, even under harsh conditions. Therefore they are commonly used in aircraft, turbines, nuclear reactors, etc...

[1] https://en.wikipedia.org/wiki/Linear_variable_differential_t...