Abstract: A method implemented on a processor includes emitting a light beam from a light source to a component in an absorption cell, wherein the light beam comprises a plurality of wavelength beams. The method further includes generating a plurality of response signals due to the presence of the component, corresponding to the plurality of wavelength beams of the light beam. The method also includes detecting the plurality of response signals by a photo detector coupled to the absorption cell. The method includes determining a concentration of the component based on the plurality of response signals.

Abstract: A holding is presented. The holding device includes a male connector comprising a first male extension and a second male extension that extend out of opposite surfaces of a male central disk, an electromagnetic guiding device continuously passing through a central hole that continuously passes through the first male extension, the male central disk and the second male extension, a reflector that is in a direct physical contact with a first end of the electromagnetic guiding device that ends at a top surface of the first male extension, and a holder that covers the first male extension to hold the reflector, and maintain the physical contact between the first end of the electromagnetic guiding device and the reflector.

Abstract: The present application provides an inlet air fogging system for a gas turbine engine. The inlet air fogging system may include a fogging nozzle array and a fogging control system in communication with the fogging nozzle array. The fogging control system may include a droplet size measurement system and a humidity level measurement system.

Abstract: A system and a method for detecting of components in a sample fluid includes a first chamber having a sample fluid and a second chamber coupled to the first chamber, wherein the second chamber has a reference fluid. The system includes a modulated light source for emitting a modulated light beam to the sample fluid and the reference fluid, to generate a first acoustic signal in the first chamber and a second acoustic signal in the second chamber. The system further includes a pressure sensor disposed between the first chamber and the second chamber, for detecting a difference between the first acoustic signal and the second acoustic signal. The system includes a processor based module communicatively coupled to the pressure sensor and configured to receive a signal representative of the difference and determine at least one of a component and the concentration of the component in the sample fluid.

Abstract: A method for detecting of components in a fluid includes emitting a modulated light beam from a modulated light source to the fluid in a chamber, wherein the fluid comprises a liquid and a component in the liquid. The method includes producing an acoustic signal in response to the emitted modulated light beam and detecting the acoustic signal via a pressure sensor disposed in the chamber. The method in one example also includes transmitting the acoustic signal from the pressure sensor to a processor based module and determining at least one of a component and a concentration of the component in the fluid via the processor based module, based on the acoustic signal.

Abstract: A holding is presented. The holding device includes a male connector comprising a first male extension and a second male extension that extend out of opposite surfaces of a male central disk, an electromagnetic guiding device continuously passing through a central hole that continuously passes through the first male extension, the male central disk and the second male extension, a reflector that is in a direct physical contact with a first end of the electromagnetic guiding device that ends at a top surface of the first male extension, and a holder that covers the first male extension to hold the reflector, and maintain the physical contact between the first end of the electromagnetic guiding device and the reflector.

Abstract: A device is presented. The device includes an electromagnetic guiding device to provide electromagnetic radiation, a reflector that reflects a portion of the electromagnetic radiation to generate a reflected portion of the electromagnetic radiation, wherein the reflector is fully immersed in a multiphase fluid, and a processing subsystem that analyzes the multiphase fluid based upon at least a portion of the reflected portion of the electromagnetic radiation, wherein a principal optical axis of the electromagnetic guiding device substantially aligns with a principal optical axis of the reflector.

Abstract: A system for detecting an array of samples having detectable samples and at least one reference sample is provided. The system comprises an electromagnetic radiation source, a sensing surface comprising a plurality of sample fields, wherein the plurality of sample fields comprise at least one reference field, a phase difference generator configured to introduce differences in pathlengths of one or more samples in the array of samples, and an imaging spectrometer configured to image one or more samples in the array of samples.

Abstract: An optical displacement sensor is provided according to one embodiment. The optical displacement sensor comprises a housing; a displacement member coupled to the housing, configured to contact an object under test and move based on displacement of the object under test; a light emitter coupled to the housing; an optical transducer coupled to the housing; and a reflecting surface coupled to the displacement member to reflect at least a part of the light emitted from the light emitter to the optical transducer, such that movement of the displacement member modifies intensity distribution of the light reflected to the optical transducer.

Abstract: A detection system for a two-dimensional (2D) array is provided. The detection system comprises an electromagnetic radiation source, a phase difference generator, a detection surface having a plurality of sample fields that can receive samples, and an imaging spectrometer configured to discriminate between two or more spatially separated points.

Abstract: A system, comprising at least one source for irradiating electromagnetic radiation into a sample fluid and a reference fluid resulting in a change in a temperature of the sample fluid and a change in a temperature of the reference fluid, and a processing subsystem that monitors and determines a concentration of a gas of interest dissolved in the sample fluid based upon a difference between the change in the temperature of the sample fluid and the change in the temperature of the reference fluid, wherein the reference fluid does not contain the gas of interest, and the electromagnetic radiation has a wavelength range corresponding to a spectral absorption range of the gas of interest.

Abstract: An auto-aligning system is presented. One embodiment of the auto-aligning system includes a launcher unit configured to direct a first laser beam and a second laser beam through a chamber, wherein the first laser beam is co-linear with the second laser beam. The auto-aligning spectroscopy system further includes a receiver unit configured to receive the first laser beam and the second laser beam passing through the chamber. The receiver unit includes a first detector configured to determine an intensity of the first laser beam. The receiver unit also includes a second detector configured to determine a deviation of the second laser beam from a determined position. Further, the auto-aligning spectroscopy system includes a motorized stage configured to align the launcher unit to a base-line position based on the determined deviation of the second laser beam.

Abstract: A method for dissolved gas analysis is presented. The method includes the steps of irradiating a fluid with electromagnetic radiation; and determining a concentration of a gas as a function of a temperature change of the fluid in response to the irradiation. A device for such an analysis of dissolved gases in a fluid, and a system having such device are also described.

Abstract: A multimode detection system for detecting one or more samples is provided. The detection system comprises an electromagnetic radiation source, a reference arm, and a sample arm comprising a sensing substrate having a plurality of sample fields, wherein the sample fields are configured to receive the one or more samples. The system further comprises a phase difference generator configured to introduce pathlength differences in the reference arm, sample arm, or both, a spatial light modulator operatively coupled to the reference arm, sample arm, or both, wherein the spatial light modulator is configured to modulate incident radiation, resultant radiation, or both in the reference arm, sample arm, or both, and an imaging spectrometer configured to discriminate between two or more spatially separated sample en two or more spatially separated sample fields.

Abstract: The present application provides an inlet air fogging system for a gas turbine engine. The inlet air fogging system may include a fogging nozzle array and a fogging control system in communication with the fogging nozzle array. The fogging control system may include a droplet size measurement system and a humidity level measurement system.

Abstract: A fringe locking subsystem for an optical sensing cavity is provided. The subsystem comprises one or more photo detectors that detect a reference signal and a cavity signal; a first amplifier that generates a calculated differential between the reference signal and the cavity signal; a lock-in amplifier that generates a modulation signal based on the calculated differential; and a controller that adjusts a distance within the cavity based on the modulation signal.

Abstract: An auto-aligning system is presented. One embodiment of the auto-aligning system includes a launcher unit configured to direct a first laser beam and a second laser beam through a chamber, wherein the first laser beam is co-linear with the second laser beam. The auto-aligning spectroscopy system further includes a receiver unit configured to receive the first laser beam and the second laser beam passing through the chamber. The receiver unit includes a first detector configured to determine an intensity of the first laser beam. The receiver unit also includes a second detector configured to determine a deviation of the second laser beam from a determined position. Further, the auto-aligning spectroscopy system includes a motorized stage configured to align the launcher unit to a base-line position based on the determined deviation of the second laser beam.

Abstract: An optical displacement sensor is provided according to one embodiment. The optical displacement sensor comprises a housing; a displacement member coupled to the housing, configured to contact an object under test and move based on displacement of the object under test; a light emitter coupled to the housing; an optical transducer coupled to the housing; and a reflecting surface coupled to the displacement member to reflect at least a part of the light emitted from the light emitter to the optical transducer, such that movement of the displacement member modifies intensity distribution of the light reflected to the optical transducer.

Abstract: In one embodiment, a system includes an imaging system configured to capture a first image of a rotating component within an interior of a turbine using a first integration time, to capture a second image of the rotating component within the interior of the turbine using a second integration time, different than the first integration time, and to subtract the first image from the second image to obtain a differential image.

Abstract: A detection system for a two-dimensional (2D) array is provided. The detection system comprises an electromagnetic radiation source, a phase difference generator, a detection surface having a plurality of sample fields that can receive samples, and an imaging spectrometer configured to discriminate between two or more spatially separated points.