Temat: measuring devices - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Use laser to measure girder deflection
Autorzy:: Daliga, K.
Kurałowicz, Z.
Tematy:: pomiary geodezyjne
urządzenia pomiarowe
measurements
measuring devices; Pokaż więcej
Wydawca:: Politechnika Warszawska. Wydział Geodezji i Kartografii
Powiązania:: https://bibliotekanauki.pl/articles/225526.pdf Link otwiera się w nowym oknie
Opis:: In engineering practice, there are often required to carry out the measurement of beam, girder or plate deflection in a short time in a few chosen points. Traditional methods, based on the measurement by dial gauges, inductive or surveying methods, require the commitment of the team, need expensive and complicated equipment and are time consuming. The paper presents a new, simple way to measure deflection of selected items using the device DKKZ-2010, which uses a laser light source.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Using the vertical wheel of a theodolite as a spirit level and devices for defining slope testing
Autorzy:: Ćmielewski, K.
Kuchmister, J.
Ćmielewski, B.
Tematy:: urządzenia pomiarowe
geodezja
measuring devices
geodesy; Pokaż więcej
Wydawca:: Politechnika Warszawska. Wydział Geodezji i Kartografii
Powiązania:: https://bibliotekanauki.pl/articles/225485.pdf Link otwiera się w nowym oknie
Opis:: New measuring devices which appear in geodetic equipment that are used to measure small inclination angle i.e. Nivel 200 from Leica or box and pipe levels which help to set auxiliary geodetic devices and electronic devices (prototype) for defining inclination are subject to periodical control. They are run on a level examiner which mainly defines level ascendancy, error of middle position of the level's bubble, influence of ecological changes and measurement range. The solutions to examinations of level very often are of a prototype character (secured by a patent). Manufactured ones are quite expensive and have a character of laboratory devices.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Evaluation of integrated vehicle detector for usage in ports
Autorzy:: Krawczyk, G.
Suda, J.
Tematy:: ITS
identification of vehicles
measuring devices
vehicle detectors; Pokaż więcej
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Powiązania:: https://bibliotekanauki.pl/articles/360785.pdf Link otwiera się w nowym oknie
Opis:: This article presents equipment which monitors vehicles in sea ports and furthermore management of transshipment. A method and results of an integrated vehicle detector was presented. The studied unit represents the newest trend in building detectors, where one device applies a couple of detection methods. The studied device applied: passive infrared (PIR), ultrasonic and electromagnetic microwave radiation. The aim of the research was to describe how accurate the vehicle detector TT 298 acquires data. The evaluation pertained to: counting vehicles, describing structures according to the type, vehicle speed measurement.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Definition of dynamic characteristics of pointer measuring devices on the basis of automatic indications determination
Autorzy:: Kucheruk, V.
Kurytnik, I.
Kulakov, P.
Lishchuk, R.
Moskvichova, Y.
Kulakova, A.
Tematy:: pointer measuring devices
binarization
skeletonization
recognition
dynamic characteristics; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/949819.pdf Link otwiera się w nowym oknie
Opis:: The article presents the method and algorithm of automatic pointer measuring devices (voltmeter, manometer, metronomes etc.) indications determination in order to determine their dynamic characteristics with the help of web-camera and personal computer. The results of testing and experimental research of developed tool for determining the dynamic characteristics of pointer measuring devices are given. Using this method, the algorithm and the software developed, the process of determining the dynamic characteristics of the pointer measuring devices was automated. The time of recognition and calculation of one measured value for a dual-core processor and webcam with a resolution of 0.3 Mp averages 250–330 ms.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The essence of telematics systems providing in transport
Autorzy:: Król, Marcin
Tematy:: information systems
measuring devices
telematics
telematics systems; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1166071.pdf Link otwiera się w nowym oknie
Opis:: Telematics should be understood as all information, telecommunications and IT solutions that have been used to improve the activities of specific sectors. Telematics is distinguished by so-called transport telematics. Every year, the number of telematics solutions for trucks increases. Therefore, this topic has become quite significant in recent times. The task of telematics systems is to collect and handle those messages that have been achieved during transport. Some telematics solutions provided by enterprises include devices monitoring the transport process and measuring devices, GPS as well as on-board computers. The reduction of freight transport costs through the minimization of individual expenses is considered to be the main purpose of using telematic devices. The use of such solutions makes it possible to verify transport to a much greater extent.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Reflectorless measurements assessment of the suitability and accuracy of the measurements
Autorzy:: Latos, D.
Baszkiewicz, K.
Nykiel, G.
Pecyna, K.
Bielecka, M.
Tematy:: pomiary geodezyjne
urządzenia pomiarowe
measurements
measuring devices; Pokaż więcej
Wydawca:: Politechnika Warszawska. Wydział Geodezji i Kartografii
Powiązania:: https://bibliotekanauki.pl/articles/225579.pdf Link otwiera się w nowym oknie
Opis:: Measurement technics in geodesy have strongly intensified their development towards the remote methods of acquiring information in recent years. This trend can be observed for example with reflectorless measurement of distance, the method which is accessible in more and more of new tachymeters. Manufacturers compete with solutions that are able to provide larger range of measurement, while at the same time the accuracy of it is still adequate enough for majority of geodetic jobs. Unfortunately, the parameters that describe the reflectorless measurement published in the specification of the instruments refer to measurements, which were made in the strictly defined conditions, with the use of specific background materials, accessibility of which is hardly to repeat in the real, everyday work in the field.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Urządzenia do pomiaru prędkości pocisków artyleryjskich
Devices for measuring velocity of artillery projectiles
Autorzy:: Piontek, J.
Krzyżanowski, S.
Tematy:: measuring devices
artillery projectiles
muzzle velocity
ballistic stations
firing; Pokaż więcej
Wydawca:: Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
Powiązania:: https://bibliotekanauki.pl/articles/347902.pdf Link otwiera się w nowym oknie
Opis:: W artykule przybliżono treści związane z historią powstawania urządzeń do pomiaru prędkości początkowej pocisków artyleryjskich, ich budowę i zasady działania. Podjęto także próbę charakterystyki kierunków rozwoju tych urządzeń w kontekście pomiaru parametrów wybranych zjawisk fizycznych towarzyszących strzelaniu. Ponadto scharakteryzowano wybrane stacje balistyczne stosowane obecnie w naszej armii i armiach innych państw pod kątem dokładności pomiarów i zakresu działania.
The article presents the history of developing the devices for measuring the muzzle velocity of artillery projectiles, their construction and rules of operating. The authors also attempt to describe the development trends of these devices in the context of measuring selected physical phenomena related to firing. Furthermore, some ballistic stations currently used in armed forces are described from the point of view of their accuracy and reliability.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: IR technology in marine applications
Autorzy:: Świderski, W.
Tematy:: infrared radiation
marine applications
infrared technique
measuring devices
observations; Pokaż więcej
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Powiązania:: https://bibliotekanauki.pl/articles/359089.pdf Link otwiera się w nowym oknie
Opis:: The infra-red radiation was discovered in 1800 by English astronomer Sir Wiliam Hirchel but practical appl ications could be dated to the beginning of XX century. First advanced scientific investigations, as well as works relating to the military applications of IR technique were carried out during the First World War. Many applications of IR radiation exist until now. It is generally accepted that taking into account the destination the devices of IR techniques can be divided on three main groups: measuring devices, observation and aut omatic recognition systems. Devices of this type can be found both in Navy and civil marine.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Use and calibration of 5-hole pressure probes to measurement of airflow velocity
Autorzy:: Ruchała, P.
Grabowska, K.
Małachowski, P.
Santos, L.
Back, D.
Tematy:: aerodynamic measurement
turbomachinery
measuring devices
flow direction measurement
multi-hole probes; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/245287.pdf Link otwiera się w nowym oknie
Opis:: Multi-hole probes are simple and robust device to measurement of flow velocity magnitude and direction in wide range of angles of attack – up to 75°. They become popular as they may be easily use to measurement of unknown flow velocity, while optical methods, like PIV or LDA, require some knowledge about the flow for proper setting of measurement devices. Multi-hole probes are also more lasting in comparison with CTA hot-wire probes, which may be damaged by a dust. A multi-hole probe measures air pressure with one pressure tap on its tip and a few (usually 2, 4, 6 or more) taps on conical or semispherical surface of the probe tip. Based on measured pressures, some non-dimensional pressure coefficients are calculated, which are related to flow velocity direction (i.e. two angles in Cartesian or spherical coordinate system) and magnitude. Finding relations between these parameters is relatively complex, which for years was limiting application of multi-hole probes. The article summarizes methods of multi-hole probes calibration and use, which may be classified as nulling and non-nulling methods or – with other criteria – as global and local methods. The probe, which was presented in the article, was the 5-hole straight probe manufactured by Vectoflow GmbH and calibrated in the stand designed and manufactured at the Institute of Aviation. The local interpolation algorithm has been used for calibration, with some modifications aimed on mitigate of mounting uncertainty, which is related with the non-alignment of flow velocity direction and probe axis Results of calibration showed that the accuracy of presented methodology is satisfactory. The standard measurement uncertainty was assessed for 0.2° for the pitch angle and yaw angle, which is better than accuracy declared by the probe’s manufacturer (1.0°). The measurement uncertainty of the flow velocity is approximately 0.12 m/s, similarly like in manufacturer’s data.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Mobile stand for testing vehicle dynamics
Mobilne stanowisko do badań dynamiki pojazdów
Autorzy:: Gołaszewski, A.
Szydłowski, T.
Tematy:: vehicle
vehicle dynamics research
measuring devices
pojazd
badania dynamiki pojazdów
urządzenia pomiarowe; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Powiązania:: https://bibliotekanauki.pl/articles/1364315.pdf Link otwiera się w nowym oknie
Opis:: The research on vehicle dynamics contributes significantly to the development of the automotive industry. It has been conducted for many years by various research centres which use their own or commercial research stands. Purchasing a commercial mobile stand offered on the market is a serious financial problem. Additionally, it does not always give possibilities to measure all relevant parameters. Therefore, there was developed an own solution of such a device which is the subject of this publication. The paper presents a structure solution of only one of the modules constituting a mobile stand for testing the dynamics of a vehicle movement. The described module is a head used for measuring the steering angle and angular velocity of a wheel. It is an original, non-applied solution which allows to measure the actual steering angle of a vehicle. The advantage of the presented solution is that a simple design allows for a quick assembly and disassembly of the device in any vehicle by only one person. The stand was made at the Department of Vehicles and Fundamentals of Machine Design at the Technical University of Lodz. The attempts of assembly of the stand and tests on various passenger cars proved its practicality and possibilities of achieving the assumed research on the dynamics of vehicle movement.
Badania dynamiki ruchu pojazdów wpływają w istotny sposób na rozwój ogólnie rozumianej motoryzacji. Prowadzone są one od wielu lat przez różne ośrodki badawcze wykorzystujące własne bądź komercyjne stanowiska badawcze. Zakup komercyjnego mobilnego stanowiska badawczego oferowanego na rynku stanowi poważny problem finansowy, a w dodatku nie zawsze daje ono możliwości dokonywania pomiarów wszystkich istotnych parametrów. W związku z tym opracowano własne rozwiązanie takiego stanowiska, które stanowi temat niniejszej publikacji. W artykule zostało zaprezentowane rozwiązanie konstrukcyjne tylko jednego z modułów mobilnego stanowiska do badań dynamiki ruchu pojazdu. Opisany moduł to głowica do pomiaru kąta skrętu koła oraz prędkości kątowej koła. Stanowi ona oryginalne, niestosowane rozwiązanie umożliwiające pomiar rzeczywistego skrętu koła pojazdu. Zaletami prezentowanego rozwiązania jest prosta konstrukcja umożliwiająca szybki montaż i demontaż urządzenia do dowolnego pojazdu przez jedną osobę. Stanowisko to zostało wykonane w Katedrze Pojazdów i Podstaw Budowy Maszyn Politechniki Łódzkiej. Przeprowadzone próby jego montażu i badań na różnych samochodach osobowych potwierdziły jego praktyczność i możliwość realizacji założonych badań dynamiki ruchu pojazdów.
Dostawca treści:: Biblioteka Nauki

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