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Saturday, October 31, 2020 | History

2 edition of Development and test of a microwave ice accretion measurement instrument (MIAMI) found in the catalog.

Development and test of a microwave ice accretion measurement instrument (MIAMI)

Bertram Magenheim

Development and test of a microwave ice accretion measurement instrument (MIAMI)

  • 183 Want to read
  • 33 Currently reading

Published by National Aeronautics and Space Administration, Scientific and Technical Information Branch, For sale by the National Technical Information Service] in Washington, D.C, [Springfield, Va .
Written in English

    Subjects:
  • Icing (Meteorology),
  • Microwave measurements.,
  • Radio meteorology.

  • Edition Notes

    StatementBertram Magenhein and James K. Rocks ; prepared for Lewis Research Center.
    SeriesNASA contractor report -- 3598., NASA contractor report -- NASA CR-3598.
    ContributionsRocks, James K., Lewis Research Center., United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch., Ideal Research Inc.
    The Physical Object
    Paginationvi, 79 p. :
    Number of Pages79
    ID Numbers
    Open LibraryOL15266145M

    a) b) c) Figure 3. Three basic measurement schemes for determination of the E fields in a media under test (MUT) (AT,R – transmit/receive antennas): a) characterization of the own transmitted fields in MUT by SA (spectrum analyser) or W (wattmeter). This application is very suitable also for “near-field” scanners; b) illumination of. putations for the modeling of microwave measurement systems and the corresponding development of computer algorithms for parameter estimation and classi cation. Microwave Measurements Microwave measurements o er competitive measurement techniques in many applica-tions. We refer to Nyfors and Vainikainen [1] for a survey as well as classi. Rearranging equation 3 and solving for the complex di- electric constant yields * Er = 1 - r* - -.C f jwZoCo(l + r*) CCI (4) However, it is necessary to extract from or* the values of o,', the dielectric constant, and r,", the loss factor. This can be accomplished by expressing oi with real andCited by: 1. rate and sea ice. The measurement of ocean surface vector winds using a polarimetric microwave radiometer was first demonstrated by the Naval Research Laboratory WindSat radiometer (launched in ). Because this was a first-of-its-kind measurement, the system minimized use of new technology to ensureFile Size: KB.

    There are several disadvantages of the microwave sea ice cover: –water clouds, prevalent in some polar areas during the summer, can degrade the quality of sea ice retrievals. –cannot resolve small ice floes or ice bergs of interest to navigation. –while the ice edge is usually specified very accurately, the total ice.


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Development and test of a microwave ice accretion measurement instrument (MIAMI) by Bertram Magenheim Download PDF EPUB FB2

Development and test of a microwave ice accretion measurement instrument (MIAMI). Washington, D.C.: National Aeronautics and Space Administration, Scientific and Technical Information Branch ; [Springfield, Va. Development and test of a microwave ice accretion measurement instrument (MIAMI) (NASA contractor report) Unknown Binding – January 1, by Bertram Magenhein (Author) See all formats and editions Hide other formats and editions.

Price New from Used from Unknown Binding, Author: Bertram Magenhein. Development and Test of a Microwave Ice Accretion Measurement Instrument (MIAMI) Bertram Magenheim and James K.

Rocks Ideal Research Inc. Rockville, Mary/and Prepared for Lewis Research Center under Contract NAS 2 7 6 5 National Aeronautics and Space Administration Scientific and Technical Information Branch   Development and test of a microwave ice accretion measurement instrument (MIAMI) by Bertram Magenhein,National Aeronautics and Space Administration, Scientific and Technical Information Branch, For sale by the National Technical Information Service] edition, in Pages: • The chief product of such facilities is the ice accretion that forms on various test articles.

• Documentation of the resulting ice accretion key piece of data in icing-wind-tunnel tests. • Number of currently used options for documenting ice accretion in icing-wind-tunnel testing.

• Simple and quantitative photography • Pencil tracingsCited by: How is Microwave Ice Accretion Measurement Instrument abbreviated. MIAMI stands for Microwave Ice Accretion Measurement Instrument. MIAMI is defined as Microwave Ice Accretion Measurement Instrument rarely. Among the Microwave measurement devices, a setup of Microwave bench, which consists of Microwave devices has a prominent place.

This whole setup, with few alternations, is able to measure many values like guide wavelength, free space wavelength, cut-off wavelength, impedance, frequency, VSWR, Klystron characteristics, Gunn diode characteristics, power.

We use this page as the index for all microwave measurement subsections. Here's links to our growing list of test equipment and measurement pages: Averaging example (New for May ) Mixer noise figure. Lab safety. Calculating characteristic impedance from measured reflection coefficient.

Load pull measurement of power devices. This book will be an invaluable guide for RF and microwave R&D and test engineers, satellite test engineers, radar engineers, power amplifier designers, LNA designers, and mixer designers. University researchers and graduate students in microwave design and test will also find this book of by: Measurement Systems.

Microwave Measurement Systems provides a turnkey system for materials scientists. Materials development proceeds much faster with quick, easy characterization of samples at each stage of development: Examples – microwave absorbers, shielding materials, high temperature microwave ceramics, substrates used in high frequency.

A test was performed to determine the efficacy of a novel multi-channel thermocouple temperature sensor employing “N+1” array architecture for the in-situ detection of icing in cold climates.

T-type thermoelements were used to fabricate a sensor with six independent temperature sensing points, capable of two-dimensional temperature mapping. Field tests of a surface ice accretion measurement system /, by Paul Tattelman and U.S.

Air Force Geophysics Laboratory (page images at HathiTrust) Meteorological measurements on line-of-sight microwave radio links /, by James F. Morrissey, O. Coté, Y. Izumi, and U.S. Air Force Geophysics Laboratory. Ice sensors: The ISO norm proposes an ice ma ss measurement method using an ice collector that consists of a 30mm diameter cy linder, with a minimum length of m that slowly rotates around.

DEVELOPMENT AND CALIBRATION OF A K-BAND GROUND-BASED HYPERSPECTRAL MICROWAVE RA-DIOMETER FOR WATER VAPOR MEASUREMENTS Yan Xie*, Jingxiong Chen, Dawei Liu, Changchun Lv, Kai Liu, and Jungang Miao School of Electronic and Information Engineering, Beihang University, No.

26, Xueyuan Road, BeijingChina. About Us. Spanawave Corporation was founded in with the mission of becoming a leading provider of RF and Microwave solutions for the Test and Measurement needs of Military, Aerospace, Telecom, Industrial and Scientific Research organizations.

This book targets engineers, technicians, scientists, and other technical professionals who have a need to understand basic electronic test and measurement processes.

The book is a primer on DC and low frequency. An anemometer is a device used for measuring wind speed and is also a common weather station instrument. The term is derived from the Greek word anemos, which means wind, and is used to describe any wind speed instrument used in first known description of an anemometer was given by Leon Battista Alberti in 3.

Overview of Microwave test Equipment 4. Resources II. The Experiments 1. The Slotted Line (waveguide hardware, measurement of SWR, λg, impedance) 2.

The Vector Network Analyzer (one- and two-port network analysis, frequency response) 3. The Gunn Diode (the spectrum analyzer, power meter, V/I curve, mixers) 4. Impedance Matching and TuningFile Size: KB.

(Rochester, N.Y., Taylor instrument companies, c), by P. Jameson and Taylor Instrument Companies (page images at HathiTrust) Barometers and the measurement of atmospheric pressure. A pamphlet of information respecting the theory and construction of barometers in general, with summary of instructions for the care and use of the standard.

Nonlinear Microwave Measurement and Characterization High Volume Microwave Test The instrument used for this is an oscilloscope. By continuing to observe the amplitude of the signal over a small frequency range, the spectral components of the signal are obtained. This measurement is normally made with a spectrum Size: 2MB.

An Introduction to Microwave Measurements provides proficiency in subjects related to radio frequency (RF) and microwave systems, and is an ideal resource for senior undergraduate and first-year master’s-level students as well as professionals in the wireless industry who deal with such systems but are not specialists in the area.

A thermometer is a device that measures temperature or a temperature gradient.A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in which some change occurs with a change in temperature; and (2) some means of converting this change into a numerical.

Even when there is no unique expression for Z L and Z 0 such as in the case of hollow uniconductor waveguides, the voltage reflection coefficient Γ has a value because it is simply a voltage ratio.

In general, the measurement of microwave impedance is the measurement of Γ. Both amplitude and phase of Γ can be measured by direct probing of the voltage standing.

The proof of concept of a non-invasive reflection-type void measurement system using microwaves is developed.

Before constructing the instrument, governing equations are used to perform numerical simulations of different electrical components (reflectometer, antenna, etc.). Design and preliminary calibrations are performed based on these simulations. The results are Author: S.

Pochet, A. Teyssedou, C. Akyel. the book D. Pozar, Microwave Engineering (third edition). Hoboken, NJ: Wiley, Much other information is covered in this text as well, so it is one of the books that all RF and microwave engineers should own.

Other important sources that cover certain special topics at greater depth are: G. Bryant, Principles of Microwave Size: 4MB. A Microwave Radiometer for Internal Body Temperature Measurement by Robert Patterson Scheeler B.S.,NorthDakotaStateUniversity, M.S.,UniversityofColorado,File Size: 5MB.

IMPLEMENTATION OF MICROWAVE MEASUREMENTS USING NOVEL CALIBRATION TECHNIQUES by Aditya P. Goswami A thesis submitted to the Graduate Faculty of North Carolina State University in partial fulfillment of the requirements for the Degree of Master of Science Computer Engineering Raleigh May APPROVED BY: Chair of Advisory Committee.

A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text.

INTRODUCTION TO MICROWAVE MEASUREMENTS: DEVELOPMENT OF A SCALAR REFLECTOMETER of an external device under test (i.e. a device that is not part of the measurement set-up itself), will be constructed in the lab and used to characterize simple microwave components.

Scalar Reflectometer: Measurement of impedance at microwave. This book provides state-of-the-art coverage for making measurements on RF and Microwave Components, both active and passive. A perfect reference for R&D and Test Engineers, with topics ranging from the best practices for basic measurements, to an in-depth analysis of errors, correction methods, and uncertainty analysis, this book provides.

microwave components, including transmission lines and terminations of various types. Detection of Microwave Power: A fundamental requirement for all microwave measurement techniques is a means for detecting microwave power.

Most microwave detection schemes fall into one of two categories, so-called "square-law" detectors and heterodyne systems.

fast, accurate, reliable and exceptional value, power amplifier, and power measurement test equipment Fast power measurements with the B Universal Power Meter's high accuracy and linearity Ultra broadband microwave power amplifiers with excellent pulse performance and modulated signal fidelity, covering from 10Mhz to 50Ghz and up to 10W.

The National Institute of Metrology (NIM) of China is a pioneer in radio frequency (RF) and microwave power metrology. In MarchStandards and Calibration Laboratory (SCL) has successfully transferred the technology from NIM to set up a new microcalorimeter system as the primary coaxial RF/microwave power measurement standard for Hong Kong.

Design and Development of a Ground-based Microwave presents the design and development of a ground-based microwave radiometer system (MWR) for the ofishore oil platform.

It will be used to provide long time series of geophysical parameters such as the sea-surface temperature, the near-surface wind speed and the sea ice type. The ground. Oriented around the most commonly used instruments in microwave measurements—the network analyzer, the spectrum analyzer, and synthesized microwave source—it introduces the latest instruments and techniques and provides a brief description of traditional measurement techniques (slotted waveguide etc.).

The microwave power output is calculated as follows: Power in Watts = (T f T i) If the measured power is below W, repeat the microwave power measurement. If the power remains less than W, the instrument is not producing adequate microwave power at the W selection. Remove the Teß on spacer from the ß oor of the cavity.

Present and future R&T development in CNES for Microwave radiometer ein1, 2, ini3, A microwave instrument used An optical radiometer devoted to the measurement of outgoing radiative fluxes at the top of the atmosphere. MARFEQ (MAdras RF EQuipment) is theRF sensor developed by CNES and EADS Astrium.

It is a total. Measure the depth, or height, of the microwave from the bottom of the microwave's feet to the top of the cabinet. If measuring a display in the store, start your depth measurement from the counter the display sits on to the top of the cabinet, this ensures you get the actual depth, or.

The measurement method was validated using air, low-loss solid and a high-loss liquid. The technique was then used to investigate the microwave absorption of an iron complexed and ligated to polyarylonitrile yarn powder.

Introduction Measurement of the dielectric properties of material at microwave frequencies has generated a lot of. A microwave radiometer is described together with its theory of operation. The experimentally measured root mean square fluctuation of the output meter of a microwave radiometer (°C) compares favorably with a theoretical value of °C.

With an r-f band width of 16 mc/sec., the °C corresponds to a minimum detectable power of Cited by:. The body under test, placed at a given distance r from the receiver, to occupy the entire surface subtended by the antenna beam, must have its smaller linear dimension greater than the dimension D calculated according to (2).

The body under measurement must always have the smallest size greater than D calculated for r min, or mm.Microwave radiometric temperature measurement is a technique where Gaussian thermal noise inherent in the measurement and the presence of instrument drift due to environmental temperature changes impose significant practical limitations on measurement resolution and accuracy.

This is particularly the case for medical and industrial.A ‘double-container model’ was used for core temperature (T c) measurement by microwave emission radiometry (MR) of warm fluid inside a tube, placed in a container with a cooler intensity of microwaves emitted from the warmer fluid inside the tube were measured using a MR metering device, consisting of an antenna linked to a low-noise radio frequency amplifier Cited by: 3.