Transcript QPS Photronics

Introducing QPS
Updated
Jan 28th 2016
Peter Kung
Objectives
• Introduce QPS and Peter Kung
• Review Fiber Grating technology
• Platform Technologies at QPS
• Where we can work together
• Sensor development testing and
applications
• Explore other possibilities
QPS Photronics and Peter Kung
• Q Quality: means
•
•
Total customer
satisfaction
P Performance: How
well did we solve the
problem , are we the
best ?
S Service: let
customers enjoy
working with us
Company Expertise
• Invented The phase mask Technology
enabling volume manufacturing of FBGs
• Focus on Fiber gratings technology ,
product and process development with
emphasis on automation
• Work with partners to solve difficult
problems in applications in hostile
environment
• Interests in the power industry ,
Generation , distribution and transmission.
Oil and gas exploration and refineries
What is a Fiber Bragg Grating?
Fiber
Core
L
Period, Λ
It
Ii
λ
Fiber Bragg Gratings
Transmitted
Signal
λb
λ
Ir
Reflected
Signal
λb
Measurand
Induced
Shift
λ
Phase masks , tooling to print fiber
Bragg gratings
Phase Mask technology
Benefits
• FBG is small in size and light in weight
• Long operating life, immune to radiation
• Ideal for remote and distributed sensing
• FBG sensor is passive, draws 0 power
• Immune to RFI and EMI
• Can work in hostile environment, like
extreme temperature
Twin gratings Cavity
FBG Cavity Reflection Spectrum
showing all the fringes
Packaged to protect against dust oil
and humidity, improved sensitivity
Packaged SEW vibration sensor
VibroFibre™ Installed on Generator
Radial
Sensor
capsule
glued to
end
winding
cap
VibroFibre™ Installed on Generator
Tangential
Sensor capsule
glued to side of
end winding
cap
Top view of the designed Partial
Discharge (PD) sensor
Stress relief
Optic fiber
Dimensions are in mms connectors will
come out of both sides and the length will
be shorter
PD Emulator
Working principle of the proximity
& non-contact vibration sensor
Test target
FBG air-gap sensor
Measured air
gap distance
or noncontact
Vibration
Working
distance
Measures small displacement as fringe
movements with micron resolutions
3
Output Vltage (V)
2
1
0
-1
-2
-3
-4
0
1
2
3
Time (ms)
4
5
Mounted on an optical platform
Measures broad range of vibration non
contact (both high and low frequency)
Low frequency vibration
(0.1Hz)
时域
100 mHz Time Domain
4
3
Detected Signal
Applied Signal
Applied
Voltage(V)
2
detected
1
输出电压 0
-1
-2
0
5
10
15
20
25
Time (s)
时间
30
35
40
45
50
Thank you for your time
Please contact Peter Kung to discuss your
idea of collaboration
• Telephone 1-514-697-4728
• Cell phone 1-514-578-6766
• Email
[email protected]
• SKYPE: peter.kung.qps
vibration measurement with fiber
gratings
23