0000000000850704

AUTHOR

J.r. Słowik

showing 3 related works from this author

128-Channel Silicon Strip Detector Installed at a Powder Diffractometer

2004

Silicon strip detectors represent a new class of one-dimensional position-sensitive single photon counting devices. They allow a reduction of measurement time at the powder diffractometers by a factor up to 100 compared to instruments with a single counter, while maintaining comparable count statistics. Present work describes a 128-channel detector working with a standard diffractometer. The detector is 12.8 mm long and covers the angular range of 3.2 deg. We discuss the diffraction geometry in real and reciprocal space, the FWHM of diffraction peaks, and the background level. Measurements were made on standard samples and on complex samples of industrial importance (e. g., portland clinker…

DiffractionMaterials scienceSiliconbusiness.industryMechanical EngineeringDetectorchemistry.chemical_elementCondensed Matter PhysicsPhoton countingReciprocal latticeOpticschemistryMechanics of MaterialsPowder DiffractometerGeneral Materials SciencebusinessPowder diffractionDiffractometerMaterials Science Forum
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A Digital Control System for the Hydraulic Fatigue Stand SHM 250b

2006

Unreliable and inflexible analog control systems of fatigue test stands applied in laboratories are being replaced by systems enabling easy development and implementation of new test ideas. This paper presents a digital control system applied in the fatigue test stand SHM 250b. It is based on a new electronic system and the I/O board RT-DAQ4/PCI with the software Matlab/Simulink used for communication with the board. The control system for the fatigue test stand SHM 250b gives the possibility of performing fatigue tests under controlled strain ε(t), stress σ(t) and energy parameter W(t) which is calculated from the stress and strain signals. The applied control system is now used, depending…

Materials sciencebusiness.industryStress–strain curveCondensed Matter PhysicsStrength of materialsAtomic and Molecular Physics and OpticsStress (mechanics)SoftwareControl systemGeneral Materials ScienceDigital controlMATLABbusinessElectronic systemscomputerSimulationcomputer.programming_languageSolid State Phenomena
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A Computer Control System for the Hydraulic Stand MZPK 100 for Biaxial Fatigue Testing

2006

This paper presents a two-channel digital control system for the hydraulic stand MZPK 100 designed for fatigue tests of cruciform specimens under biaxial tension-compression. In the past, the fatigue test stand MZPK 100 was provided with unreliable analog control power cubicles. Application of the computer with an analog and digital input-output signal path board, Matlab/Simulink software and a new control box equipped with the necessary electronic subassemblies (responsible for proper switching of the hydraulic supplier, command electrovalves, conditioning of signals from sensors and so on) enables replacement of the old analog system by a new two-channel digital control system. Nowadays, …

Materials sciencebusiness.industryInterface (computing)PID controllerControl engineeringCondensed Matter PhysicsSignalFuzzy logicAtomic and Molecular Physics and OpticsSoftwareControl systemGeneral Materials ScienceDigital controlbusinessMATLABcomputercomputer.programming_languageSolid State Phenomena
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