Hou et al., 2024 - Google Patents
A Phase Noise Immune TDLAS Flow Velocimetry via Using Modulated Waveform SynchronizingHou et al., 2024
- Document ID
- 2141857905199151110
- Author
- Hou G
- Xu L
- Wang Y
- Cao Z
- Publication year
- Publication venue
- 2024 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)
External Links
Snippet
A phase noise immune tunable diode laser absorption spectroscopy (TDLAS) velocimetry method was proposed for gas flow velocity detection by using modulated waveform synchronizing. A Mach-Zehnder interferometer modulated the intensity of laser with wave …
- 238000000827 velocimetry 0 title abstract description 32
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infra-red light for analysing gases, e.g. multi-gas analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
- G01N2021/396—Type of laser source
- G01N2021/399—Diode laser
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry
- G01J5/02—Details
- G01J5/04—Casings Mountings
- G01J5/041—Mountings in enclosures or in a particular environment
- G01J5/043—Prevention or determination of dust, smog or clogging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colour
- G01J3/28—Investigating the spectrum
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
- G01J3/433—Modulation spectrometry; Derivative spectrometry
- G01J3/4338—Frequency modulated spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry
- G01J5/0014—Radiation pyrometry for sensing the radiation from gases, flames
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colour
- G01J3/28—Investigating the spectrum
- G01J3/45—Interferometric spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Instruments as specified in the subgroups and characterised by the use of optical measuring means
- G01B9/02—Interferometers for determining dimensional properties of, or relations between, measurement objects
- G01B9/02001—Interferometers for determining dimensional properties of, or relations between, measurement objects characterised by manipulating or generating specific radiation properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using change of colour or translucency
- G01K11/125—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using change of colour or translucency using change in reflectance
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Huang et al. | Frequency-division multiplexing and main peak scanning WMS method for TDLAS tomography in flame monitoring | |
| Goldenstein et al. | Scanned-wavelength-modulation spectroscopy near 2.5 μm for H 2 O and temperature in a hydrocarbon-fueled scramjet combustor | |
| Goldenstein et al. | High-bandwidth scanned-wavelength-modulation spectroscopy sensors for temperature and H2O in a rotating detonation engine | |
| Elliott et al. | Molecular filter based planar Doppler velocimetry | |
| CN108981953B (en) | Laser absorption spectrum temperature measurement method and system based on interferometric modulation principle | |
| Sur et al. | TDLAS-based sensors for in situ measurement of syngas composition in a pressurized, oxygen-blown, entrained flow coal gasifier | |
| CN107576505B (en) | Mid-infrared laser measurement system and method for engine combustion process monitoring | |
| Goldenstein et al. | Infrared laser absorption sensors for multiple performance parameters in a detonation combustor | |
| CN108760681A (en) | A kind of path averaged temperature measuring system and method decomposed based on waveform | |
| US8702302B2 (en) | Hot gas temperature measurement in gas turbine using tunable diode laser | |
| CN111474138A (en) | Gas concentration measuring device and method based on high-frequency reference optical frequency division multiplexing technology | |
| CN114993987B (en) | Temperature and gas concentration measurement method and system based on absorption spectrum amplitude modulation | |
| Xu et al. | Noise immune TDLAS temperature measurement through spectrum shifting by using a Mach–Zehnder interferometer | |
| CN109270027A (en) | A kind of gas absorptivity On-line Measuring Method based on the fitting of Sine Modulated time domain | |
| Wang et al. | Simultaneous measurement of temperature and water concentration using a novel laser dispersion spectrum extraction method immune to carrier phase variation | |
| CN107036983B (en) | The method for realizing non-homogeneous combustion field gas parameter quantitative measurment based on modulated spectrum | |
| Chang et al. | Mass flux sensing via tunable diode laser absorption of water vapor | |
| Zhou et al. | Noise immune absorption profile extraction for the TDLAS thermometry sensor by using an FMCW interferometer | |
| Shim et al. | TDL-based spectroscopy for simultaneous measurement of multiple gas properties using a single absorption line | |
| CN114544547A (en) | A method and system for on-line recursive demodulation of wavelength-modulated spectral signals | |
| Lu et al. | Bias-immune absorption spectrum extraction by downsampling the wavelength modulation laser signal for precise measurement of dynamic gas temperature | |
| Hou et al. | A Phase Noise Immune TDLAS Flow Velocimetry via Using Modulated Waveform Synchronizing | |
| CN115468932B (en) | A temperature super-frame rate measurement system and method based on laser gas absorption spectroscopy | |
| Hou et al. | A interferometer modulated TDLAS temperature sensor by using coherent demodulation | |
| Wang et al. | Industrial applications of tunable diode laser absorption spectroscopy |