Subjects -> INSTRUMENTS (Total: 62 journals)
Showing 1 - 16 of 16 Journals sorted alphabetically
Annali dell'Istituto e Museo di storia della scienza di Firenze     Hybrid Journal  
Applied Mechanics Reviews     Full-text available via subscription   (Followers: 27)
Bulletin of Social Informatics Theory and Application     Open Access   (Followers: 1)
Computational Visual Media     Open Access   (Followers: 4)
Devices and Methods of Measurements     Open Access  
Documenta & Instrumenta - Documenta et Instrumenta     Open Access  
EPJ Techniques and Instrumentation     Open Access  
European Journal of Remote Sensing     Open Access   (Followers: 9)
Experimental Astronomy     Hybrid Journal   (Followers: 39)
Flow Measurement and Instrumentation     Hybrid Journal   (Followers: 18)
Geoscientific Instrumentation, Methods and Data Systems     Open Access   (Followers: 4)
Geoscientific Instrumentation, Methods and Data Systems Discussions     Open Access   (Followers: 1)
IEEE Journal on Miniaturization for Air and Space Systems     Hybrid Journal   (Followers: 2)
IEEE Sensors Journal     Hybrid Journal   (Followers: 103)
IEEE Sensors Letters     Hybrid Journal   (Followers: 3)
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems)     Open Access   (Followers: 3)
Imaging & Microscopy     Hybrid Journal   (Followers: 9)
InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan     Open Access  
Instrumentation Science & Technology     Hybrid Journal   (Followers: 7)
Instruments and Experimental Techniques     Hybrid Journal   (Followers: 1)
International Journal of Applied Mechanics     Hybrid Journal   (Followers: 7)
International Journal of Instrumentation Science     Open Access   (Followers: 40)
International Journal of Measurement Technologies and Instrumentation Engineering     Full-text available via subscription   (Followers: 2)
International Journal of Metrology and Quality Engineering     Full-text available via subscription   (Followers: 4)
International Journal of Remote Sensing     Hybrid Journal   (Followers: 273)
International Journal of Remote Sensing Applications     Open Access   (Followers: 43)
International Journal of Sensor Networks     Hybrid Journal   (Followers: 4)
International Journal of Testing     Hybrid Journal   (Followers: 1)
Journal of Applied Remote Sensing     Hybrid Journal   (Followers: 83)
Journal of Astronomical Instrumentation     Open Access   (Followers: 3)
Journal of Instrumentation     Hybrid Journal   (Followers: 32)
Journal of Instrumentation Technology & Innovations     Full-text available via subscription   (Followers: 1)
Journal of Medical Devices     Full-text available via subscription   (Followers: 5)
Journal of Medical Signals and Sensors     Open Access   (Followers: 3)
Journal of Optical Technology     Full-text available via subscription   (Followers: 5)
Journal of Sensors and Sensor Systems     Open Access   (Followers: 11)
Journal of Vacuum Science & Technology B     Hybrid Journal   (Followers: 2)
Jurnal Informatika Upgris     Open Access  
Measurement : Sensors     Open Access   (Followers: 3)
Measurement and Control     Open Access   (Followers: 36)
Measurement Instruments for the Social Sciences     Open Access  
Measurement Science and Technology     Hybrid Journal   (Followers: 7)
Measurement Techniques     Hybrid Journal   (Followers: 3)
Medical Devices & Sensors     Hybrid Journal  
Medical Instrumentation     Open Access  
Metrology and Measurement Systems     Open Access   (Followers: 6)
Microscopy     Hybrid Journal   (Followers: 8)
Modern Instrumentation     Open Access   (Followers: 50)
Optoelectronics, Instrumentation and Data Processing     Hybrid Journal   (Followers: 4)
PFG : Journal of Photogrammetry, Remote Sensing and Geoinformation Science     Hybrid Journal  
Photogrammetric Engineering & Remote Sensing     Full-text available via subscription   (Followers: 29)
Remote Sensing     Open Access   (Followers: 54)
Remote Sensing Applications : Society and Environment     Full-text available via subscription   (Followers: 8)
Remote Sensing of Environment     Hybrid Journal   (Followers: 93)
Remote Sensing Science     Open Access   (Followers: 24)
Review of Scientific Instruments     Hybrid Journal   (Followers: 22)
Sensors and Materials     Open Access   (Followers: 2)
Solid State Nuclear Magnetic Resonance     Hybrid Journal   (Followers: 3)
Standards     Open Access  
Transactions of the Institute of Measurement and Control     Hybrid Journal   (Followers: 13)
Труды СПИИРАН     Open Access  
Similar Journals
Journal Cover
Instruments and Experimental Techniques
Journal Prestige (SJR): 0.314
Citation Impact (citeScore): 1
Number of Followers: 1  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1608-3180 - ISSN (Online) 0020-4412
Published by Springer-Verlag Homepage  [2626 journals]
  • A Probe Method for Microwave Diagnostics of Pulsed Plasma
    • Abstract: Abstract—An original method for microwave diagnostics of pulsed plasma is proposed and tested. The object of the diagnostics is a shock-compressed plasma layer that is formed when a high-speed plasma jet created by a magnetic-plasma compressor is decelerated by a barrier. The essence of this method consists in placing a small resonant cavity on the plasma-jet path. This cavity is simultaneously a barrier and a diagnostic tool. The plasma parameters (the electron concentration and the electron-collision frequency) are calculated from the measured values of the probing microwave signal power transmitted through the resonant cavity and reflected from it.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218050160
       
  • Designing and Experimental Testing of the Beam-Forming Devices in Proton
           Therapy
    • Abstract: — The equipment used in proton therapy to form dose distributions by passive scattering has been developed and tested. A new approach and software for calculating the design of proton-energy modulators (ridge filters) corresponding to the specified geometry of irradiated targets is proposed. The proposed technology makes it possible to advance the search for an optimal filter design to meet the quality requirements for radiation therapy. The results of calculations are presented in comparison with the experimental data obtained at the linear proton accelerator of the INR at beam energies of 160 and 209 MeV.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218050123
       
  • A Guidance System for Aiming a Spectrometer Field of View at the Sun
    • Abstract: The design and principle of operation of a mirror system that was designed for the automatic guidance of a spectrometer field of view with an aperture of 25 mm at the Sun and tracking the Sun with an accuracy of up to 1 mrad are described. The spectrometer will be installed on a landing platform on the surface of Mars. A prototype with a mass of 900 g was manufactured and tested.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218050202
       
  • An Impulsive High-Pressure Gas Valve for Plasma Devices
    • Abstract: — An impulsive gas valve with an electrodynamic drive of the locking element is described. The valve is designed to inject working gases into a discharge channel of plasma devices of the compression and acceleration types. The key gas-dynamic and electrical characteristics of the impulsive gas valve are presented. The valve is capable of forming gas pulses with a wide range of gas-dynamic parameters: the supplied volume of the working gas is 30–540 cm3 per pulse (at atmospheric pressure) and the gas pressure in the flow is as high as 760 Torr.
      PubDate: 2018-11-01
      DOI: 10.1134/S002044121806012X
       
  • Generation of High-Power High-Voltage Nanosecond Rectangular Pulses by
           Summing Quasi-Harmonic Currents
    • Abstract: An approach to designing generators of high-power rectangular high-voltage pulses of nanosecond duration based on a Fourier representation of these pulses is considered. The design of a gigawatt-power-level generator that consists of partial-current formers, a switch, and a charging device is described. The partial-current formers are based on the use of segments of coaxial lines, the switch is manufactured in the form of a multigap gas-filled spark gap, and the charging device is a Tesla transformer that is built into one of the coaxial lines. The results of the generator tests that demonstrate the capabilities of the considered approach are presented.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218050184
       
  • A Study of the Radiation Hardness of Si and SiC Detectors Using a Xe Ion
           Beam
    • Abstract: The properties of silicon (Si) and silicon carbide (4Н-SiC) detectors after their exposure to different integral fluxes of xenon (Xe) ions are presented. The detectors were irradiated at the IC-100 cyclotron of the Flerov Laboratory of Nuclear Reactions at the Joint Institute for Nuclear Research. It is shown that the degradation of the spectroscopy characteristics of a SiC detector occurs at higher doses compared to a similar Si detector.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218060192
       
  • Application of Domestic Operational Amplifiers in Devices for
           Spectrometric Measurements in Deep Space
    • Abstract: The issues of the application of operational amplifiers that are manufactured in Russia in systems for spectrometric measurements of the solar flux, which are designed for use in promising space projects, are considered. The results of experimental studies of prototypes of circuit units that perform the functions of a precision charge integrator for the formation of a video signal on the basis of a highly stable 554UD1 operational amplifier when processing signals from a linear photodetector are presented.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218060088
       
  • A Radio Interferometric Correlator Based on Graphics-Processing Units
    • Abstract: — A correlator capable of processing data streams at a maximum rate of 16 Gb/s from each station in quasi-real time mode has been developed to process observations on new RT-13 radio telescopes of the Quasar VLBI network. The total data stream at the correlator input is as large as 96 Gb/s. The correlator is software-controlled and implements the FX processing algorithm. Graphical processing units manufactured by NVIDIA are used to perform the most laborious operations: fast Fourier transform, spectrum multiplication and addition, and extraction of phase calibration signals. The correlator, which was produced in 2014, has been processing observations of the Badary and Zelenchukskaya Observatories of the Quasar VLBI network for more than 2 years and a number of UT1-UTC World Time estimates have been obtained.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218060131
       
  • A Section of a Serial Summator of High-Power Microsecond-Duration Pulses
    • Abstract: The design principles and construction of a section of a serial summator of high-power rectangular microsecond-duration pulses with a power of up to 5 MW, a current of up to 5 kA, rise and fall times shorter than 200 ns, and a pulse repetition rate of up to 10 kHz were investigated. The possibility of using this section to form series of rectangular microsecond pulses with a duration of up to 5 μs and a voltage of up to 50 kV is shown.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218060064
       
  • An Electron-Beam-Induced Current Detector for Diagnostics of Power
           Converters of Radioisotope β Radiation Based on Diamond Schottky Barrier
           Diodes in a Scanning Electron Microscope
    • Abstract: A system is developed to measure and visualize the distribution of the magnitude of the electron-beam-induced current over the area of diamond Schottky barrier diodes (SBDs) using an electron beam in a Vega3 Tescan scanning electron microscope. The system allows measurements of the current–voltage and photovoltaic characteristics and the complex diagnostics of SBDs that are designed for use as energy converters of radioisotope β radiation from 63Ni into electrical energy. The system consists of a developed two-stage electron-beam-induced current detector, a power supply, and a computer unit for control, data acquisition, and data processing with the LabView software control. In studies of a series of SBD specimens, information on the presence of various types of structural defects in the diodes was obtained and their impact on the functional characteristics of the diodes was evaluated.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218060027
       
  • An Interference Microscope with a Low-Coherence Source and a Supersmooth
           Reference Mirror
    • Abstract: The design and principle of operation of a Linnik-scheme-based interference microscope with a low-coherent radiation source and a reference mirror in the form of a monoatomic silicon layer are described. The microscope is designed to measure the heights of the surface profiles of reflecting objects by the phase-shifting method and provides a measurement error of up to 0.6 Å. The results of experiments on measuring the heights of monoatomic silicon layers to determine the sensitivity and on balls of silicon dioxide to assess the temporal stability of measurements are presented.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218060210
       
  • A Function Generator for Calibration of Electromagnetic-Field Recorders
    • Abstract: A low-frequency function generator for calibrating measuring channels of electromagnetic-field recorders in the frequency range from one hertz to tens of kilohertz is described. One feature of the device is the stability and high-precision phase synchronization of the output signal with a coordinated universal time provided by a GPS/GLONASS receiver. The application of the developed device made it possible to increase the accuracy of calibration of the measuring channels of receivers in a very low frequency range and, as a consequence, the accuracy of measuring the phase velocities of artificial and natural electromagnetic signals of ultralow- and very-low-frequency bands.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218060106
       
  • An Automated System for Measuring the Current Density of a
           Pulse–Periodic Electron Beam with a Large Cross Section
    • Abstract: Abstract—In an electron source with a mesh plasma cathode on the basis of a low-pressure arc discharge, studies of the spatiotemporal stability of a pulse–periodic beam with a large cross section (750 × 150 mm2), which was extracted into the atmosphere through an output foil window, were performed. The automated system that was used in the studies allowed real-time measurements with the ability to visualize the data on a computer. This system provides an accuracy of measurements of no worse than ±2%; it differs from the known analogues in the compactness, reliability, and simplicity of its design and allows studies of the current-density distribution over the beam cross section in a wide range of beam parameters, such as the beam energy, beam current, and beam-current pulse duration. A satisfactory coincidence of the previously obtained data and the present experimental data is shown with the possibility of substantially increasing the accuracy of setting up a scientific experiment and, consequently, the speed of debugging and the reproducibility of the technological process.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218050251
       
  • Investigation of Power Transistor Parameters for Designing High-Frequency
           High-Voltage Nanosecond Switches
    • Abstract: — The efficiency of power transistors in composite high-voltage switches is analyzed. A high-voltage pulse generator capable of generating a periodic voltage signal with a rectangular shape, an amplitude as high as 16 kV, a current greater than 40 A, and a repetition rate of up to 100 kHz has been developed.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218050214
       
  • The Measuring System for the Thomson Scattering Diagnostics of the GOL-3
           and GDT Facilities
    • Abstract: The measuring system for Thomson scattering diagnostics of the GOL-3 and GDT facilities at the Budker Institute of Nuclear Physics is described. The system has a modular architecture and is based on eight-channel measuring subsystems, including photodetectors, two-channel recorders (ADC12500), synchronization modules, and the Ethernet/UART communication channel adapter. The photodetectors are based on avalanche photodiodes and are operable in the frequency range of 0–50 MHz. The ADC12500 recorders are used to measure scattering signals with a duration of ~20–30 ns at a sampling rate of to 500 MHz and an amplitude resolution of 12 bits and accumulate data in a buffer memory with a capacity as large as 2 MB.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218060118
       
  • Reconstruction of TOF Spectrometer Experimental Data Using the
           Step-by-Step Shift Method
    • Abstract: — A method for mathematical treatment is considered for experimental data from pulsed time-of-flight spectrometers, whose response to measurement-initiating pulses is represented by their convolution with the pulse response of the system. The proposed method of step-by-step shifting and its modifications are intended to correct the system response when the initiating pulse is distorted and also to reconstruct the response from a shorter pulse. Within certain physical constraints, this method is an alternative for technical methods associated with difficult scientific and technical problems that require considerable material costs. The inaccuracies of the reconstruction are estimated. An example of the reconstruction of experimental data from the neutron time-of-flight spectrometer at the INR is considered. The method is applicable to reconstruction of output data from any systems that are linear with respect to the input signals and are invariant to time shifts.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218050226
       
  • A Source of Electromagnetic Pulses Based on a Magneto-Cumulative Generator
           and an Electrically Exploded Current Breaker
    • Abstract: A model of a high-power current pulse generator based on an explosive magneto-cumulative generator with electrically exploded copper-conductor breakers capable of generating a powerful electromagnetic pulse impact in a limited space of 16 m3 is described. An experimental setup has been constructed that contains tools for diagnostics of the parameters of the electromagnetic pulse impact. The results of experimental studies in the form of measured pulse values of the current in and voltage across the load are presented. An electric field intensity of ~0.5 MW/m has been achieved. The rate of the increase in the magnetic field density reached 0.12 T/μs.
      PubDate: 2018-11-01
      DOI: 10.1134/S002044121805024X
       
  • A Scanning SXR Spectrometer Used in Experiments on ECR Plasma Heating at
           the L-2M Stellarator
    • Abstract: Abstract—A diagnostic complex that is based on a scanning soft X-ray spectrometer has been developed at the Prokhorov General Physics Institute. The diagnostic complex is intended to measure the radial profiles of the plasma electron temperature in the L-2M stellarator. The maximum counting rate of the spectrometer is 2.0 × 105 pulses/s. It allows measuring of SXR spectra in the energy range of γ-photons of 1–80 keV. The spectral resolution of the spectrometer measured using a source of radioactive radiation with energy of E = 5.89 keV (55Fe) was ΔE = 320 eV (FWHM). The scanning system makes it possible to measure SXR spectra along the chords lying in the angular range from –13.5° to +26.5°. Negative and positive angles correspond to chords below and above the equatorial plane of the facility, respectively. The radial resolution of the spectrometer at the plasma axis is ~1.7 cm. The first results of spectral measurements in experiments at electron cyclotron resonance plasma heating at the L-2M stellarator are presented.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218050196
       
  • A Direct Digital Synthesizer of Complex Signals
    • Abstract: The principles of the design and structural and circuitry-engineering solutions of direct digital synthesizers based on the method of the direct digital synthesis of frequencies and signals are proposed. The block and circuit diagrams of a direct digital synthesizer of complex frequency-modulated signals are shown. The synthesizer allows the synthesis of amplitude-, frequency-, and phase-modulated signals within the frequency range of 0.001–200 MHz.
      PubDate: 2018-11-01
      DOI: 10.1134/S0020441218050238
       
  • Determination of the 14 C Concentration in a Liquid Scintillator for a
           Neutrino Detector
    • Abstract: Abstract A setup has been developed for studying ultralow 14C concentrations in liquid scintillator samples for a large neutrino detector. The setup is located at the low-background underground laboratory of the Baksan Neutrino Observatory (Institute for Nuclear Research, Russian Academy of Sciences) at a depth of 4900 m of water equivalent. The 14C concentrations in a liquid scintillator based on linear alkyl benzene, the background counting rates, and the spectra of particle energies deposited in the technological scintillator sample have been measured. The ratio 14C/12C = (1.41 ± 0.12) × 10–16 has been obtained. A model of the γ-ray background has been developed, with which it is possible to extract the energy spectrum of 14C and reduce the systematic uncertainty of measurements.
      PubDate: 2018-09-01
      DOI: 10.1134/S0020441218040231
       
 
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