XY tilt sensor inductive sensors filled with oil, test teardown

[oz2cpu]

This amazing XY tilt sensor is from FSG in Germany, it was installed in a crane many years ago,
I got this one from the last hamradio fleamarked,
the sensors are inductive filled with vibration dampen oli,
the inductive system runs at 12kHz time pulse difference is converted to 4-20mA outputs using two TLC27M4 opamps,
it is super accurate and stable and still works after 30 years !!
this reveal top quality product, but ok it is not a cheap toy but high end pro.
Price in 1994 was 675 Euro, Price in 2024 is 1240 Euro.
Huge thanks to all my German friends for the help with documentation.

https://youtu.be/rcgyKKUy4YM