Method and apparatus for detecting embedded rebar within an interaction region of a structure irradiated with laser
First Claim
1. A detection system for use during irradiation of an interaction region of a structure with laser light, the structure comprising embedded material, the detection system comprising:
- a collimating lens positioned to receive light emitted from the interaction region;
an optical fiber optically coupled to the collimating lens to receive light from the collimating lens; and
a spectrometer optically coupled to the optical fiber to receive light from the optical fiber, the spectrometer adapted for analysis of the light for indications of the embedded material within the interaction region, the spectrometer comprising;
an input slit adapted to receive light from the optical fiber, the input slit having a width selected to provide sufficient light transmittance and sufficient resolution;
an optical grating adapted to receive light from the input slit and to separate the light into a spectrum of wavelengths;
a collection lens adapted to receive a selected range of wavelengths of the separated light from the optical grating; and
a light sensor adapted to receive the selected range of wavelengths and to generate a signal corresponding to an intensity of the received light.
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Accused Products
Abstract
A detection system is used during irradiation of an interaction region of a structure including embedded material with laser light. The detection system includes a collimating lens positioned to receive light emitted from the interaction region. The detection system further includes an optical fiber optically coupled to the collimating lens and a spectrometer optically coupled to the optical fiber. The spectrometer is adapted for analysis of the light for indications of the embedded material within the interaction region. The spectrometer includes an input slit adapted to receive light from the optical fiber. The input slit has a width selected to provide sufficient light transmittance and sufficient resolution. The spectrometer further includes an optical grating adapted to receive light from the input slit and to separate the light into a spectrum of wavelengths. The spectrometer further includes a collection lens adapted to receive a selected range of wavelengths of the separated light from the optical grating. The spectrometer further includes a light sensor adapted to receive the selected range of wavelengths and to generate a signal corresponding to an intensity of the received light.
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Citations
16 Claims
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1. A detection system for use during irradiation of an interaction region of a structure with laser light, the structure comprising embedded material, the detection system comprising:
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a collimating lens positioned to receive light emitted from the interaction region;
an optical fiber optically coupled to the collimating lens to receive light from the collimating lens; and
a spectrometer optically coupled to the optical fiber to receive light from the optical fiber, the spectrometer adapted for analysis of the light for indications of the embedded material within the interaction region, the spectrometer comprising;
an input slit adapted to receive light from the optical fiber, the input slit having a width selected to provide sufficient light transmittance and sufficient resolution;
an optical grating adapted to receive light from the input slit and to separate the light into a spectrum of wavelengths;
a collection lens adapted to receive a selected range of wavelengths of the separated light from the optical grating; and
a light sensor adapted to receive the selected range of wavelengths and to generate a signal corresponding to an intensity of the received light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A detection system for use during irradiation of an interaction region of a structure with laser light, the structure comprising embedded material, the detection system comprising:
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means for collecting light emitted from the interaction region;
means for separating the collected light into a spectrum of wavelengths; and
means for analyzing at least a portion of the spectrum for indications of embedded material within the interaction region.
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16. A method of detecting embedded material within a laser-irradiated interaction region of a structure comprising the embedded material, the method comprising:
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collecting light from the interaction region;
separating the collected light into a spectrum of wavelengths; and
analyzing at least a portion of the spectrum for indications of the embedded material within the interaction region.
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Specification