Matches 1 - 10 out of 10
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7454967 Signal conditioning methods and circuits for a capacitive sensing integrated tire pressure sensor  
A tire pressure monitoring system is provided that includes a switched capacitor circuit having a clock with two non-overlapping clock phases that control a state of analog switches of the switched...
7322250 System and method for sensing torque on a rotating shaft  
A system and method relating to the measuring of torque in a rotating shaft is provided. An optical torque sensing system comprises a rotating shaft, wherein a sleeve of photo-elastic material...
7222534 Optical accelerometer, optical inclinometer and seismic sensor system using such accelerometer and inclinometer  
An optical accelerometer includes a beam and at least one optical fiber affixed to one side of the beam such that deflection of the beam changes a length of the optical fiber. A device for sensing...
6948381 System and method for sensing torque on a rotating shaft  
A system and method relating to the measuring of torque in a rotating shaft is provided. An optical torque sensing system comprises a rotating shaft, wherein a sleeve of photo-elastic material...
6813959 Apparatus and method for measuring residual stress and photoelastic effect of optical fiber  
Disclosed is an apparatus for measuring a residual stress and a photoelastic effect of an optical fiber, which includes: a light source; a rotary type optical diffuser distanced from the light...
6567174 Optical accelerometer and its use to measure acceleration  
A method for measuring acceleration uses an accelerometer apparatus having an optically transparent, stress-birefringent material, a source of polarized light positioned to direct a polarized beam...
5723794 Photoelastic neural torque sensor  
An opto-mechanical torque sensing device suitable for use with rotary machinery integrates a photoelastic polymer detector, a light source, a photoelastic image sensor and an artificial...
5475489 Determination of induced change of polarization state of light  
A method of determining induced change of polarization state of light in a polarization element comprising transmitting unpolarized light from a light source at the one end of an optical...
4902134 Optical amplifier and method for amplifying optical polarization state change effects  
An optical amplifier for amplifying optical polarization state change effects comprises an arrangement for passing polarized light through a material a plurality of times such that changes in the...
4777358 Optical differential strain gauge  
An optical strain gauge has a first birefringent optical module secured to a specimen bar in a manner transferring tensile strain from the bar to the module and has a similar second birefringent...
Matches 1 - 10 out of 10