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Tuesday, August 4, 2020 | History

3 edition of Fiber-optic interferometric sensors for measurements of pressure fluctuations found in the catalog.

Fiber-optic interferometric sensors for measurements of pressure fluctuations

Y. C. Cho

Fiber-optic interferometric sensors for measurements of pressure fluctuations

experimental evaluation

by Y. C. Cho

  • 296 Want to read
  • 7 Currently reading

Published by National Aeronautics and Space Administration, Ames Research Center, National Technical Information Service, distributor in Moffett Field, Calif, [Springfield, Va .
Written in English

    Subjects:
  • Optical fiber detectors.,
  • Aeronautical instruments.

  • Edition Notes

    Other titlesFiber optic interferometric sensors for measurements ....
    StatementY.C. Cho and P.T. Soderman.
    SeriesNASA technical memorandum -- 104002.
    ContributionsSoderman, Paul T., Ames Research Center.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15371220M

      Fiber Optic Graphene Sensors for Dynamic Pressure Measurements. Published. July 1, OSA Optical Sensors (Sensors) Conference Dates. June July 1, Conference Location. Boston, MA. Pub Type. Conferences. Download Paper. DOI Link. Keywords. dynamic pressure, fiber optic sensor, graphene. Created July 1, , Updated November 10 Author: Haijun Liu, Douglas A. Olson, Kevin O. Douglass, Miao Yu. Phase modulated sensors 3. 2 Fiber optic sensors for temperature measurement 4. Introduction 4. A simple example 4. Interferometric temperature sensors 4. A fiber optic Fabry-Perot temperature sensor 5. 3 Bragg grating optical sensors 6. 4 Aerodynamic testing of a smart composite wing using fiber-optic strain sensing and.

    The use of a fiber-optic Mach-Zehnder interferometer to measure differences in temperature or pressure between two single-mode fiber arms is described. Temperature or pressure changes are observed as a motion of an optical interference fringe pattern. Values are calculated for the pressure and temperature dependence of the fringe motion. Pressure and temperature measurements are made with the. interferometric fiber-optic bending sensors have been proposed, including: splicing a multimode fiber or a photonic crystal fiber between two single-mode fibers [], cascading two fiber-tapers [14], using multiple fiber gratings [15], or using multi-core fibers [].Cited by:

    TECHNICAL PAPERS & ABSTRACTS A paper entitled "Long-Life Fiber-Optic Pressure Sensors for Harsh Environment Applications" was presented by Dr. Marek T. Wlodarczyk at the 9th Trade Fair and Conference Sensor99, May , Nuremberg, Germany. A paper entitled "Long-Life Fiber-Optic Pressure Sensors for Reciprocating Machinery Monitoring" was presented by Dr. Marek T. Wlodarczyk at the . principle of fiber optic temperature sensor measurements are as Fiber Bragg gratings, Raman Scattering and interferometric point sensors [11]. One of the basic idea is that to terminate the fiber in a pellet at a reflecting surface.


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Fiber-optic interferometric sensors for measurements of pressure fluctuations by Y. C. Cho Download PDF EPUB FB2

Fiber-Optic Interferometric Sensors for Measurements of Pressure Fluctuations: •Experimental Evaluation Y. Cho* and P. Sodermant NASA Ames Research Center Moffett Field, CA Abstract This paper addresses an anechoic chamber evaluation of a fiber-optic interfcrometrie sensor (fiber-optic micro-phone), which is being developed at NASA Ames File Size: KB.

Get this from a library. Fiber-optic interferometric sensors for measurements of pressure fluctuations: experimental evaluation. [Y C Cho; Paul T Soderman; Ames Research Center.]. Interferometric Fiber Optic Sensors Article (PDF Available) in Sensors 12(3) December with Reads How we measure 'reads'.

Pressure measurement with fiber-optic sensors: Commercial technologies and applications Article (PDF Available) in Proceedings of SPIE - The International Society for Optical Engineering Fiber Optic Pressure Sensor: OPP-M Design for repeatability and reliability demanded by for industrials applications.

The OPP-M designed for pressure measurement that request very small sensors of mm OD with outstanding repeatability.

Michelson Interferometer Sensors. Fiber-optic sensors based on Michelson interferometers (MIs) are quite similar to MZIs.

The basic concept is the interference between the beams in two arms, but each beam is reflected at the end of each arm in an MI as shown in Figure 9(a) [60–63].

In fact, an MI is like a half of an MZI in by: Optical interferometry as a precision metrology has been widely employed in many aspects for accurate measurements of various physical quantities. As an important branch of measurement technology, now the fiber-optic interferometry technology, based on fiber-optic and laser technologies, has been developed and widely applied in sensor fields for detections of various unknown or uncontrolled Cited by: 2.

When the first edition of Optical Interferometry was published, interferometry was regarded as a rather esoteric method of making measurements, largely confined to the laboratory. Today, however, besides its use in several fields of research, it has applications in fields as diverse as measurement of length and velocity, sensors for rotation.

In-line fiber optic interferometers have attracted intensive attention for their potential sensing applications in refractive index, temperature, pressure and strain measurement, etc.

Typical in-line fiber-optic interferometers are of two types: Fabry-Perot interferometers and core-cladding-mode interferometers. It’s known that the in-line fiber optic interferometers based on single-mode Cited by: Fiber optic sensors have found applications in multiple industries, and their use has been gradually growing since the s.

Since the late s, the use of fiber optic sensors in the oil and gas industry has greatly expanded, especially for in-well monitoring applications. Throughout the late s and s the use of Raman-based Cited by: 6. The OPP-B model is a bare fiber optic pressure sensor (no metal housing) for applications requiring minimally invasive in-situ pressure measurement.

The OPP-B pressure sensor is compatible with all Opsens Solutions’ WLPI (Patent #7,) signal conditioners. ABSTRACT: Optrand has developed a family of fiber-optic pressure sensors targeting monitoring and control applications that are characterized by long service lifetime, large number of pressure cycles, temperatures in excess of o C, high levels of EMI, or the presence of explosive or corrosive media.

In a robust and low cost design Optrand sensors utilize the principle of light intensity. In-line fiber optic interferometers have attracted intensive attention for their potential sensing applications in refractive index, temperature, pressure and strain measurement, etc.

Typical in-line fiber-optic interferometers are of two types: Fabry-Perot interferometers and core-cladding-mode interferometers. It's known that the in-line fiber optic interferometers based on single-mode Cited by: @article{osti_, title = {Modeling and Validation of Performance Limitations for the Optimal Design of Interferometric and Intensity-Modulated Fiber Optic Displacement Sensors}, author = {Moro, Erik A}, abstractNote = {Optical fiber sensors offer advantages over traditional electromechanical sensors, making them particularly well-suited for certain measurement : Erik Allan Moro.

We propose and experimentally demonstrate, for the first time to our knowledge, high temperature fiber sensing using the multimode interference effect within a suspended-core microstructured optical fiber (SCF). Interference fringes were found to red-shift as the temperature increased and vice versa.

Temperature sensing up to °C was performed by measuring the wavelength shifts of the. @article{osti_, title = {A fiber optics sensor for strain and stress management in superconducting accelerator magnets}, author = {van Oort, J.M.

and ten Kate, H.H.J.}, abstractNote = {A novel cryogenic interferometric fiber optics sensor for the measurement of strain and stress in the coil windings of superconducting accelerator magnets is described.

Especially in the application of miniature fiber-optic pressure sensors, the introduction of the corrugated structure gives the sensor high sensitivity, large dynamic range, good linearity, small hysteresis, good stability, and so on.

Research on CD-based miniature fiber-optic pressure sensors has gradually attracted more attention in recent years. temperature sensors, but with limitations.

Particularly under harsh conditions, fibre optic temperature sensors show their advantages over conventional instrumentation. Three common principles of fibre optic temperature measurement are exemplarily examined: fibre Bragg gratings, Raman scattering and interferometric point by:   Fiber optic sensors are divided into intrinsic and extrinsic sensors.

The difference is that the optical fiber itself acts as the sensing element for the intrinsic sensor whereby an extrinsic. FP pressure sensors. The setup consists of a broadband tungsten halogen light source (Ocean Optics LS-1), a VIS-NIR spectrometer (Ocean Optics USB) and a 3dB fiber coupler (see Fig.

The spectral output of the Ocean Optics LS-1 light source is plotted in Fig. In the case of the SM fiber-optic sensors, the pressure. In this report, we focus on an interferometric fiber optic sensor, where the gap between the fiber tip and the device under test forms a Fabry-Perot resonant cavity.

An optical interrogator measures the reflected intensity at wavelengths ranging from to : Rick Grahn, Hussain Karimi, Kyle Wilson, Erik Moro, Anthony Puckett.The major test results give us the confidence to believe that the development of the fiber optic SCIIB pressure sensor system provides a reliable pressure measurement tool capable of operating in high pressure, high temperature harsh by: 8.

Experiment with fiber-optic interferometric sensor in Department of Information Security of Telecommunication Systems (Taganrog).