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Vacuum Passthru Hardware

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 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.

Bv1 series

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

model
hardware
channel
count
sensor
type
Bv1
1
D or RC
Bv133
1
D or RC
Bv2
1
D
Bv3
1
RC
BvF-CF
Multi
D and RC
BvF-ISO
Multi
D and RC
Fv1
Fv2
Fv3
1
D and RC
W
1
D and RC
Wb
1
D and RC
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