4. Electric heating
  5. Metal heating
  6. By arc

Karl A. Stetson

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Airflow detection system using fiber optics

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
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Apparatus for high frequency optical beam oscillation

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Method and apparatus for high frequency optical beam oscillation

Electric heating – Metal heating – By arc
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Optical head for shearography

Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
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Optical strain gauge

Optics: measuring and testing – Material strain analysis – By light interference detector
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Profile ID: LFUS-PAI-P-275315

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