| Patent Number |
Title Of Patent |
Date Issued |
| 7382471 |
Non-contact apparatus and method for measuring surface profile |
June 3, 2008 |
| Embodiments of the invention provide a non-contact method for measuring the surface profile of an object that can include generating a point-type optical signal and projecting it on a rotatable precision optical grating, generating a rotating pattern of light and dark lines onto the |
| 7061628 |
Non-contact apparatus and method for measuring surface profile |
June 13, 2006 |
| Embodiments of the invention provide a non-contact method for measuring the surface profile of an object that can include generating a point-type optical signal and projecting it on a rotatable precision optical grating, generating a rotating pattern of light and dark lines onto the |
| 6600597 |
Photonic crystal amplifier for optical telecommunications system |
July 29, 2003 |
| A photonic crystal amplifier that employs a photonic crystal gain medium for a telecommunications system. Pump light is coupled into the amplifier at one end of the gain medium and signal light is coupled into and out of the amplifier at an opposite end of the gain medium. The pump light |
| 6031199 |
Combination laser cutting and blank welding apparatus and method |
February 29, 2000 |
| A combination cutting and welding apparatus for fabricating tailor welded blanks and the like wherein sheets of metal are placed end-to-end in an abutting relationship and welded together along the resulting seam to form a blank for subsequent metal processing. The machine includes two h |
| 5761956 |
Passive combustion turbine blade vibration monitor sensor |
June 9, 1998 |
| A passive blade vibration monitor sensor for determining an arrival time of a blade of a combustion turbine during operation, the sensor includes an optical lens which receives infrared radiation generated by the blade of the turbine and generates a sensor signal from the received infrar |
| 5479826 |
Microwave system for monitoring turbine blade vibration |
January 2, 1996 |
| A method for monitoring turbine blade vibrations comprises the step of transmitting a continuous wave of microwave energy toward a rotating row of blades. Each passage of an individual blade tip through the path of the continuous wave produces a signal indicative of the time at which eac |
