Design of a single-channel millimeter-wave interferometer system for Korea Superconducting Tokamak Advanced Research

2003 ◽  
Vol 74 (3) ◽  
pp. 1613-1616 ◽  
Author(s):  
Y. U. Nam ◽  
M. S. Cheon ◽  
M. Kwon ◽  
Y. S. Hwang
Keyword(s):  
Millimeter Wave ◽  
Single Channel ◽  
Superconducting Tokamak

scholarly journals A Novel Dual-Polarization Total Power Radiometer with Single Channel

2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
Yiming Niu ◽  
Can Cui ◽  
Guo Yang ◽  
Wen Wu
Keyword(s):  
Millimeter Wave ◽  
Single Channel ◽  
Total Power ◽  
Dual Polarization ◽  
Front End ◽  
Rf Front End ◽  
False Target

A dual-polarization total power millimeter wave (MMW) radiometer with single channel was proposed in this paper. It completed the subtraction of two orthogonally polarized signals in the RF front end. The system used one channel to achieve the function of two channels. On the basis of discussing the theory and the configuration of the system, the performance of the system and the ability to identify the false target were analyzed and simulated. The results showed the radiometer could solve the problem that the performance of dual-polarization radiometer becomes weak because of gain inconformity with two channels. The system was cheap and small and could identify the false target which has different apparent temperatures at vertical- and horizontal-polarized radiations.

Design and implementation of a 150 GHz single-channel millimeter wave interferometer on Joint TEXT tokamak

2013 ◽  
Vol 84 (4) ◽  
pp. 044705
Author(s):  
X. D. Feng ◽  
G. Zhuang ◽  
Z. J. Yang ◽  
L. Gao ◽  
X. W. Hu
Keyword(s):  
Millimeter Wave ◽  
Single Channel ◽  
Design And Implementation

Data Acquisition and Handling Unit for a Quantitative Use of Electron Energy Loss Spectroscopy

1977 ◽  
Vol 35 ◽  
pp. 232-233 ◽  
Author(s):  
P. Trebbia ◽  
P. Ballongue ◽  
C. Colliex
Keyword(s):  
Electron Microscope ◽  
Energy Loss ◽  
Electron Energy ◽  
Electron Energy Loss Spectroscopy ◽  
Single Channel ◽  
Detection System ◽  
Surface Barrier ◽  
Solid State Detector ◽  
Electrostatic Mirror ◽  
Electron Energy Loss

An effective use of electron energy loss spectroscopy for chemical characterization of selected areas in the electron microscope can only be achieved with the development of quantitative measurements capabilities.The experimental assembly, which is sketched in Fig.l, has therefore been carried out. It comprises four main elements.The analytical transmission electron microscope is a conventional microscope fitted with a Castaing and Henry dispersive unit (magnetic prism and electrostatic mirror). Recent modifications include the improvement of the vacuum in the specimen chamber (below 10-6 torr) and the adaptation of a new electrostatic mirror.The detection system, similar to the one described by Hermann et al (1), is located in a separate chamber below the fluorescent screen which visualizes the energy loss spectrum. Variable apertures select the electrons, which have lost an energy AE within an energy window smaller than 1 eV, in front of a surface barrier solid state detector RTC BPY 52 100 S.Q. The saw tooth signal delivered by a charge sensitive preamplifier (decay time of 5.10-5 S) is amplified, shaped into a gaussian profile through an active filter and counted by a single channel analyser.

Instrumentation for Measurement of Lingual Strength

1968 ◽  
Vol 11 (1) ◽  
pp. 189-193 ◽  
Author(s):  
Lois Joan Sanders
Keyword(s):  
Single Channel ◽  
Displacement Transducer ◽  
Tongue Pressure ◽  
Maximum Pressure ◽  
Research Use ◽  
Direct Writing ◽  
Significant Difference ◽  
Pressure Unit ◽  
Force Displacement ◽  
Consistent Response

A tongue pressure unit for measurement of lingual strength and patterns of tongue pressure is described. It consists of a force displacement transducer, a single channel, direct writing recording system, and a specially designed tongue pressure disk, head stabilizer, and pressure unit holder. Calibration with known weights indicated an essentially linear and consistent response. An evaluation of subject reliability in which 17 young adults were tested on two occasions revealed no significant difference in maximum pressure exerted during the two test trials. Suggestions for clinical and research use of the instrumentation are noted.

Thin Film Inspection with Millimeter-Wave Reflectometer

1995 ◽  
Vol 7 (1) ◽  
pp. 89-100
Author(s):  
H. C. Han ◽  
E. S. Mansueto
Keyword(s):  
Thin Film ◽  
Millimeter Wave
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