In this paper,the operation principle of laser rotary encoders is expounded and the optical quadruple frequency technology used in laser rotary encoders in ex-p
A simple photoelastic optical modulator with a Fabry-Perot cavity based on the silicon-on-insulator system was fabricated.A 50% modulation depth has been obtati
The result of the evaporation of Sio/SiO2 two layer antireflection coatings monitored by the MODEL IL 400 DEPOSITION CONTROLLER is re-ported.A superluminescent
The study on trichromatic optical fiber radiation thermoneters is especial-ly useful for the non-contact accurate temperature measurement of those meatrials wit
A novel type of two-dimensional damage assessment system for real-time monitoring the structural health of composite strurcture is described.The configura-tion
Using a set of traveling wave rate equations ,a superluminescent diode with a low facet reflectivity is studied .Analytical expressions of the distribu-tions of
In this paper,a photoelectric device is introduced,which is used in de-tecting the quality on internal surface of thin and long steel pipe.In this device,the CC
In part(Ⅰ),the theory and structure of a universal spectral modulation sensor system are described.In part(Ⅱ),the applications of a universal spectral modulati