Fiberoptic Displacement Sensors are ideal for displacement and position measurements in vacuum. They have a wide temperature range, are UV compatible, small in size and can have sub-micron accuracy.
Philtec vacuum passthru hardware enables installation of fiberoptic probes into vacuum chambers over a wide variety of applications.
Applications For Vacuum Passthru:
in high electrical fields
in high magnetic fields
at high temperatures
at cryogenic temperatures
in cryogenic fluids
in ultra high vacuum
Bv1 series
Bv1 vacuum feedthrough hardware
background
Bv1 is a popular option for high vacuum measurements.
It can be configured with different sizes of CF or KF flanges.
A Swagelok Ultra-Torr compression fitting is brazed or welded to the flange.
The assembly is on 5x 10-10 hrs. cc/s He checked for leaks.
At the interface of the fiber optic connector, leakage through the fibers is sealed with sapphire windows over the fiber bundles.
Bv1-C133
Summary of Vacuum States
Vacuum Quality | Torr | Pascal | Philtec Model |
|---|---|---|---|
Ambient | 760 | 101kPa | all |
Low | 760 to 25 | 100 to 3 kPa | Fv1, Fv2, Fv3 |
Medium | 25 to 1E-3 | 3 kPa to 100 mPa | Fv1, Fv2, Fv3 |
High | 1E-3 to 1E-7 | 100 mPa to 1 nPa | Bv1, BvF, W |
Ultra High | 1E-7 to 1E-12 | 100 nPa to 100 pPa | Bv2, Bv3, Bv4, Wb |
Outer Space | 1E-6 to ‹3E-17 | 100 uPa to ‹fPa | |
Perfect | 0 | 0 |
Overview of optical vacuum feedthroughs
