wave measuring system Articles

  • Trace Oxygen measuring systems for Reflow and Wave solder machines

    Systech Illinois are the only company that has the option of RACE™ cell technology. What is the RACE™ cell? It is a patented dual cell technology which employs a second fuel cell to protect the first cell from being exposed to high concentrations of O2. What does it do?  ...


    By Systech Instruments Ltd

  • Dynamic rotary torque measurement using surface acoustic waves

    The subject of torque measurement has previously been addressed extensively. Most of the existing transducers either rely on low voltage analogue systems (e.g. conventional resistive strain gauge) or complicated mechanical assemblies by physically assessing displacement, i.e. optical systems. This paper identifies a new, potentially low cost, non-contact, frequency domain strain torque sensor1 ...


    By Sensor Technology Ltd

  • How to avoid the GHS Tidal Wave

    Chemical safety touches us all. It impacts the food we eat, our health and our lifestyle. Impediments to safety can endanger individuals, businesses and society in general. Common sense dictates that sound chemical management should rely on a single classification and labeling system to address specific use patterns and groups of chemicals at the national, regional and international levels. Such ...


    By 3E Company

  • The next wave of sustainable planning: green neighbourhood assessment systems

    Since the 1970s, seeking solutions for global environmental problems have been on the agenda of both national and international debates where quantifying and measuring 'sustainability' have been an emerging foci. Within this perspective, analysis of areas through new methods and measurable parameters is among recent research fields in both academia and practice. To this end, in the literature, ...


    By Inderscience Publishers

  • Ultrasonic waves lead to liquid cavitation creation

    Theoretically liquid starts boiling when pressure in some sites of a stream decreases to pressure of its saturated steam. Actually pressure of liquid cavitation creation process depends on the physical condition of liquid. If liquid contains a large amount of the dissolved air, reduction of pressure leads to air allocation from liquid and formation of gas cavities (cavities) in which pressure is ...


    By GlobeCore Blending

  • Ultrasonic waves lead to liquid cavitation creation

    Theoretically liquid starts boiling when pressure in some sites of a stream decreases to pressure of its saturated steam. Actually pressure of liquid cavitation creation process depends on the physical condition of liquid. If liquid contains a large amount of the dissolved air, reduction of pressure leads to air allocation from liquid and formation of gas cavities (cavities) in ...


    By PC GlobeCore

  • Study on hydrodynamics and heat transfer of solitary wave on film flow with CFD method

    In this paper, a capacitance probe and high speed camera are adopted to study the solitary wave of falling film on large flat plate experimentally. Two types of solitary wave are studied with a Computational Fluid Dynamic (CFD) method based on the measuring data. The water–air shear stress on the interface of the solitary wave is modelled in the numerical calculation. The results indicate that ...


    By Inderscience Publishers

  • Modelling the motion of an internal solitary wave over a bottom ridge in a stratified fluid

    A series of laboratory experiments has been carried out to investigate the passage of an internal solitary wave of depression over a bottom ridge, in a two-layer fluid system for which the upper and lower layer is linearly-stratified and homogeneous respectively. Density, velocity and vorticity fields induced by the wave propagation over the ridge have been measured simultaneously at three ...


    By Springer

  • Analytical and experimental study on bending vibration of internal combustion engines shafting system based on wave equations

    This paper proposes a new analytical approach to study the bending vibration of N step shafting system. Changes of the shaft step properties under rotary condition are governed by two–dimensional wave equations. The source of the bending vibration is first analysed. Then strain and stress equations of the spinning shaft are established. After Hamilton principle is applied, a two–dimensional wave ...


    By Inderscience Publishers

  • Development of a novel odor measurement system using gas chromatography

    This paper describes a novel odor measurement system for creating arrays of virtual chemical sensors with nonoverlapping responses using ultrahigh-speed gas chromatography with a surface acoustic wave sensor (GC/SAW). This GC/SAW system provides high-resolution twodimensional olfactory images for easy recognition of many complex odors. Separation and quantification of the individual chemicals ...

  • New technologies for measuring the humidity of biomass

    Methods applicable to a great variety of solid biofuels In recent years, systems have sprung up which use near infrared X-ray (NIR) spectroscopy, radio frequency (RF) and microwave spectroscopy as alternatives to the traditional method of measuring humidity by weight difference in the fuel burner. What these methods have in common is that they can be used for a great variety of solid biofuels, ...

  • Continuous level measurement of ink & silicon case study

    MonoScan provides a reliable and accurate continuous level indication of ink & silicon mixture, in one of Italy's leading supplier of process machinery. Enrico Molteni S.R.L, located in the area of Milan, is one of Italy's leading manufacturers of mixing and dispersion systems for the process industry. These systems contain all the equipment required to ensure their ...

  • We want good evacuation measures, no large seawalls!

    What is the best approach to restore and protect a coastline that was hit by a Tsunami? Driven by my own involvement in mangrove restoration after the 2004 Indian Ocean ...


    By Wetlands International

  • Helplessly exposed to nature? How lightning storms can be measured

    Each day, there occur about 1,000 thunderstorms with 4-10 million lightning bolts worldwide. In average, 700 people per year are hit by such light discharges, of which 75% of the hits result in long-term damages. Between three and seven cases end fatal. The risk is particularly high in the open field and is fortunately decreasing. The reason for this is that we stay more often inside in cars and ...

  • Advanced offshore measurements to support wind energy production, weather forecasting, and emergency response

    Sonoma Technology, Inc. (STI), with support from the Bureau of Ocean Energy Management, is leading a unique partnership of corporate, government, and university researchers to develop a marine environmental observations program in the Gulf of Mexico. The primary goal of this project is to develop a framework of advanced offshore measurements to support emergency response, oil and gas exploration ...

  • Ultrasonic level measurement solution reduces costs and saves labor time case study

    SmartScan 25 L provides accurate and constant level measurement results allowing cost reduction and shortens labor time at Hopax Chemicals plant, Taiwan. Hopax Chemicals, Taiwan produces over fifty kinds of chemical additives which are used in paper manufacturing and coating process, such as pulp preparing, wed-end handling, and coating, etc. The company invests heavily in modern instrument and ...

  • An Automatic Feedback System for Resonant Column Testing

    A test method and electronic circuitry is described that greatly simplifies measurement of resonant frequency in the resonant column test. It utilizes a feedback system to detect resonance automatically without requiring manual adjustment and also eliminates the need for a sine wave audio oscillator or oscilloscope. A constant and controllable strain level in the soil sample is ensured, ...


    By ASTM International

  • Railway warning and protected system – Bridge Demolition

    So the in-situ stress sensors in the concrete could measure the load changes and stress changes with a building damage after eniem earthquake immediately on-line. The alert with GPS item data is spread world-wide over the Internet. The combination also for everyone accessible maps of the world can facilitate the management after disasters substantially. So fast data are available over destroyed ...


    By IBJ Technology

  • A model for overland flow and associated processes within the Hydroinformatics Modelling System

    This paper presents a numerical model suitable for a broad range of surface flow problems such as overland flow, wetting and drying processes, varying flow conditions and shock waves. It is based on solution of two-dimensional fully dynamic shallow water equations using a cell-centred finite-volume method. Numerical fluxes are computed with a Harten, Lax and van Leer approximate Riemann solver ...


    By IWA Publishing

  • Transient tests for locating and sizing illegal branches in pipe systems

    In pipe systems illegal branches can take away remarkable water resources with negative effects from both the economic and technical points of view. Difficulties in pointing out illegal branches by means of steady-state pressure and discharge measurements are mainly due to the fact that, of course, such systems are not active according to a regular time schedule. In this paper the possibility of ...


    By IWA Publishing

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