Wyniki wyszukiwania - BazTech

1

Photomultiplier tube signal conditioning for high-temperature applications

Zezuliński Kacper, Brosławski Andrzej, Slipukhin Ivan, Guzik Zbigniew, Krakowski Tomasz, Burakowski Szymon, Kaźmierczak Łukasz, Łubian Grzegorz, Milewski Piotr, Saworska Gabriela, Trela Krystian

Nukleonika

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2023

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Vol. 68, No. 4

91--96

EN

Ionizing radiation detection in harsh environment conditions often requires additional signal processing to match the requirements of the commercial data readout systems. The subject of this paper is the design of the high-temperature (HT) signal conditioning module that ensures the applicability of scintillation detectors that utilize photomultiplier tubes (PMT) with moderate sampling rate instrumentation. The design was developed for the operation in HT environments (up to 120°C). In order to achieve the optimal signal shape, the module combines a charge amplifi er and a low-pass fi ltering circuitry. An embedded power supply section makes it a complete, standalone unit requiring a single 12 V supplying line. A comprehensive analysis of the developed device, named “PreAmp Shape”, was conducted in order to prove the intended functionality over the different working conditions.

2

Construction and Verification for Metrological Properties of the Prototype Magnetic Head for Nondestructive Testing of Lift Guide Rail Wear under Test Conditions

Krakowski Tomasz, Ruta Hubert, Lonkwic Paweł, Tofil Arkadiusz

Advances in Science and Technology. Research Journal

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2022

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Vol. 16, no 5

28--39

EN

The working surface of lift guide rails during operation is exposed to the destructive action of catchers under emergency braking conditions. In most cases, this surface is lubricated with grease, which makes it impossible to visually assess their local wear. The comfort of cabin movement on guide rails and thus the feelings of cabin occupants depend on the condition of guide rails. Therefore, the verification of lift guide rails wear under real conditions (in situ) is quite cumbersome. In order to assess them on a monthly basis, they would have to be completely cleaned and the excessively worn areas would have to be measured with universal measuring tools and re-lubricated. Such activities would only be a waste of time and lubricant.

3

Diagnostyka lin stalowych stanowiących elementy konstrukcyjne obiektów budowlanych

Kwaśniewski Jerzy, Krakowski Tomasz, Molski Szymon, Roskosz Maciej, Ruta Hubert, Schabowicz Krzysztof

Builder

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2020

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R.24, nr 2

21--25

PL

Zastosowanie lin stalowych w budownictwie obejmuje między innymi cięgna i stężenia w konstrukcjach stalowych. Diagnostyka lin stalowych to głównie nieniszczące badania defektoskopowe zorientowane na wykrycie pęknięć drutów, deformacji, starć oraz korozji. Jako metody badań stosowane są najczęściej różnego rodzaju metody magnetyczne (aktywne i coraz częściej pasywne) oraz wizualne. W artykule przedstawiono charakterystykę stosowanych metod oraz wyniki diagnostyki lin stalowych na przykładzie wybranych realizacji. Omówiono sposób regulacji sił naciągu stężeń linowych konstrukcji zabytkowego hangaru oraz przebieg i wyniki kompleksowych badań stanu technicznego lin konstrukcji wsporczej gazociągu i odciągów linowych masztu radiowo-telewizyjnego.

EN

The use of steel ropes in construction includes, among others, tension members and bracing in steel structures. Steel rope diagnostics are mainly non-destructive flaw detection tests focused on detecting wire cracks, deformations, abrasions and corrosion. As research methods, various magnetic (active and increasingly passive) and visual methods are most often used. The article presents the characteristics of the methods used and the results of wire rope diagnostics on the example of selected implementations. The method of adjusting the tension forces of rope bracing of the historic hangar structure, as well as the course and results of comprehensive tests of the technical condition of ropes of the gas pipeline supporting structure and radio mast haul-offs are discussed.

4

Application of the magnetic method in the diagnostics of wire ropes at tapered sockets

Krakowski Tomasz, Ruta Hubert, Roskosz Maciej

Biuletyn Instytutu Spawalnictwa w Gliwicach

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2020

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Vol. 64, No. 1

19--24

EN

Presently used magnetic methods for testing wire ropes leave an untested rope section located in the direct vicinity of a tapered socket. However, the aforesaid area may contain damage resulting from existing stresses and wear processes. The article discusses results of a study concerned with diagnostic equipment enabling the assessment of the above-named area in terms of its technical condition as well as presents results of the FEM-based numerical analysis of a magnetisation system and laboratory test results concerning a rope containing simulated damage.

PL

Stosowana obecnie metoda magnetyczna badania lin stalowych pozostawia nie przebadany odcinek liny w bezpośrednim otoczeniu uchwytu stożkowego. W obszarze tym mogą jednak wystąpić uszkodzenia związane z istniejącym tu stanem naprężeń oraz procesami zużyciowymi. W artykule opisano wyniki prac nad aparaturą umożliwiającą ocenę stanu technicznego liny w tym obszarze. Przedstawiono wyniki analiz numerycznych projektowanego magnetowodu oraz badań laboratoryjnych liny z zamodelowanymi uszkodzeniami.

5

Analysis and assessment of energy efficiency of passenger lifts

Krakowski Tomasz, Ruta Hubert

Advances in Science and Technology. Research Journal

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2018

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Vol. 12, no 3

257--265

EN

The energy performance and operational characteristics of the passenger lift investigated in this study were based on energy consumption data registered throughout the normal duty cycle. An overview is provided of available methods employed to evaluate the energy uptake of passenger lifts, relying mostly on energy consumption measurements taken on a real object over an idealised reference duty cycle. Measurement data were used to determine the energy efficiency rating of the lift during the trip cycle and in the standby mode and the energy demand levels, which are then to be compared with measurement results obtained under the service conditions.