A minimally invasive in-fiber Bragg grating sensor for intervertebral disc pressure measurements
… optical coupler (Blue Road Research, Gresham OR),
an optical spectrum analyzer (OSA) (ANDO AQ6331 , Tokyo
JP), a … … 3 MPa to 0 MPa (as reported by
the reference transducer) using a manual hydraulic pump
An in-fiber Bragg grating sensor for contact force and stress measurements in articular joints
Contact forces were applied by compressing a calibrated
spring with a manual screw-follower (not shown). Bragg wavelength shifts
were measured using an optical spectrum analyzer (ANDO AQ6331 , Tokyo, Japan) as described below.
Structural Health Monitoring 2009
In the second configuration, the optical interrogator was replaced by the Ando Aq6331 Optical Spectrum Analyzer (OSA … … using OSA to capture the signal spectrum, specimens were loaded in
tension in manual force-controlled mode.
Information Engineering and Applications
4) Remote sensing
Wireless control will be utilized instead of manual control for convenience and
material-saving. ANDO AQ6331 spectrum analyzer and ASE laser are
employed to monitoring the FBG spectra change [8, 9].
Design, Manufacturing and Applications of Composites; 10th Canada/Japan
To achieve this, an Ando Aq6331 optical spectrum analyzer (OSA) with a JDS
Uniphase Broadband Light Source … Twintex vacuum molding manual ”, Vetrotex, 2005.
New Trends in Structural Health Monitoring
… P-3500 strain indicator and the FBG was hooked up to an Ando AQ6331 OSA, JDS Uniphase … Three stiﬀened panels with co-cured stiﬀener webs were manufactured by
means of manual lay-up and …
Processing and Fabrication of Advanced Materials
reflection spectra from the FBGs were measured by an
optical spectrum analyzer ( AQ6331 , ANDO Electric
Co … … chopped into short lengths about 2mm
to insure an easy blending for both manual and twin-screw …