sensor data acquisition Articles

  • The Future of Data Acquisition: Will the Internet`s Cloud-Computing Replace the Data Logger?

    Electronic data loggers have been integral instrument in automation of data collection since their inception with widespread adoption beginning in the 1980’s. Data loggers are used across a variety of industries requiring automated data collection – applications include remote water resource monitoring, weather conditions, machine monitoring, gas and oil projects, building HVAC ...

  • Wireless Real-Time Soil Data from Stevens Hydra Probe Soil Sensors Used In Contaminated Soil Cleanup Operation

    Up until the early 1970s when The US Congress passed The Clean Water Act, industrial chemicals and petroleum products were routinely dumped onto the ground or poured down wells. In those days, few people understood groundwater hydrology, and disposing of chemical waste underground seemed like a safe and easy solution. Depending on the chemistry, underground pollution can linger for centuries, ...

  • Hydrometric Network Data Management

    A key part of HL's contract with Dwr Cymru Welsh Water to install, operate and maintain a large network of telemetred reservoir level and compensation flow gauges, a suite of HL's software packages was also supplied to each of the three operational areas for managing time-series data and processing stage-discharge data into a long-term flow record archive. HL's HydroLog4 and Gauger 2 packages ...

  • Basic tests for checking validity of field data

    The following guidelines are suggested for verifying micrometeorological data gathered in field experiments. It is assumed, for simplicity, that the observations being tested are made over open, relatively flat and uniform terrain, with small roughness elements. It is also assumed that the sensors and the data acquisition and recording hardware are basically sound and that the purpose of the ...

  • Dynamic soft sensors for detecting factors affecting turbidity in drinking water

    Effective monitoring of water quality is critical for water safety. In particular, online monitoring based on modeling is useful in several applications such as process assessment, hazardous event detection or common fault diagnostics in the water processes. Soft sensors have lately established themselves as a good alternative for different tasks of process control such as the acquisition of ...


    By IWA Publishing

  • Calibration using 5 flow sensors saves the effort of extensive reconstruction measures

    "Abwasserzweckverband Breisgauer Bucht", a municipal association for sewage treatment in the south of Germany, operates a central wastewater treatment plant for its members (29 communities and cities). The WWTP covers a catchment area of 650km² and its treatment capacity is 600.000 population equivalents. The plant is treating wastewater from 375.000 residents as well as from industry and ...


    By NIVUS GmbH

  • Response time testing of temperature sensors using loop current step response method

    The Loop Current Step Response (LCSR) method is used for in–situ response time testing of temperature sensors as installed in an industrial process. This paper presents the theoretical foundation of the LCSR (test theory, LCSR equation and test procedures) and the author's research to validate its use in nuclear power industry applications. The validity of the LCSR method depends on how ...


    By Inderscience Publishers

  • The Detection of Nonconformances in Real Time

    Introduction Many businesses now use systems that work in real time for acquiring, storing, analyzing and issuing data in all their plants in an efficient manner. These real time archiving systems enable you to obtain data with the aid of sensors and electronic control panels directly and quickly. These real-time acquisition systems store crucial data on operations carried out within the company ...


    By Xybion Corporation

  • Crucial elements and technical implementation of intelligent monitoring networks

    Growing complexity of water monitoring instrumentation leads to specialized solutions in respect to sensor integration across several measurement device suppliers. Despite efforts of standardization for data interfaces and protocols, problems regarding the combination of several devices to gain the complete picture in terms of water quality remain. This assessment, especially accomplished from ...


    By IWA Publishing

  • Diamond Project

    DIAMOND is a 24-month ‘Research for SMEs’ European Union's  (FP7/2007_2013) project that began in September 2012 and finished in August 2014. The project aims to achieve a model of excellence in the management of wastewater treatment systems by addressing ...


    By IWA Publishing

  • A neural network implemented microcontroller system for quantitative classification of hazardous organic gases in the ambient air

    In this study, a microcontroller-based gas mixture classification system is proposed to use real-time analyses of the trichloroethylene and acetone binary mixture. A Feed Forward Neural Network (FFNN) structure is performed for quantitative identification of individual gas concentrations (trichloroethylene and acetone) in their gas mixtures. The phthalocyaninecoated Quartz Crystal Microbalance ...


    By Inderscience Publishers

  • Intrusion detection through SCADA systems using fuzzy logic-based state estimation methods

    Supervisory Control And Data Acquisition (SCADA) systems represent a vulnerability in vital infrastructures. For example, an electric power system is subjected to intrusions via its SCADA systems; however, the instrumentation provides detectable variations in response to such interference. Presented herein is a strategy that augments state estimation methods using a Hybrid Fuzzy System for fault ...


    By Inderscience Publishers

  • Bed Level Measurement

    Numerous studies and papers have been devoted to the subject of thickener design and operation to achieve specified throughput and discharge densities. Mathematical models have been developed that present methods for sizing thickeners and predicting performance under varying process conditions. The compression effect of deeper beds on dewatering performance is a recognized phenomenon. This is one ...


    By WesTech Engineering, Inc.

  • Increasing security and protection of SCADA systems through infrastructure resilience

    In this paper, we present the approach we have taken in the INcreasing Security and Protection through Infrastructure Resilience (INSPIRE) project to improve the protection of critical information infrastructures. The core idea of the INSPIRE project is to protect critical information infrastructures (CIIs) by appropriately configuring, managing and securing the communication network ...


    By Inderscience Publishers

  • Engineering design and realisation of an automatic real time weather monitoring station using commercial CAD tools

    The paper describes the design and realisation of a low cost automatic real time weather station project aimed at significantly enhancing the design, realisation, and testing skills of undergraduate engineering students through the use of industrial Computer Aided Design (CAD) tools. The station measures the following meteorological variables: temperature, humidity, rain, and wind speed and ...


    By Inderscience Publishers

  • Locating subverted processes using random packet comparison in SCADA systems

    A supervisory control and data acquisition (SCADA) system may be subject to integrity attacks. Anomalies in sensor measurements may be used to detect these attacks, but such techniques do not permit us to locate attacking nodes. We propose a novel technique to enable this. Each participating network node probabilistically copies packets and marks them with routing information, before encrypting ...


    By Inderscience Publishers

  • Paste thickener bed level measurement

    Numerous studies and papers have been devoted to the subject of thickener design and operation to achieve specified throughput and discharge densities. Mathematical models have been developed that present methods for sizing thickeners and predicting performance under varying process conditions. The compression effect of deeper beds on dewatering performance is a recognized phenomenon. This is one ...


    By WesTech Engineering, Inc.

  • Residence time distribution in large industrial flotation cells

    The radioactive tracer technique was used to measure the Residence Time Distribution (RTD) of the liquid and solid in a rougher flotation bank consisting of seven cells of a volume of 130 m³. Thus, a pneumatic system of high reliability was used in order to introduce a small amount of radioactive tracer (around 100 mL of liquid or pulp) at the feed pulp entrance. Then, the time response of the ...


    By Inderscience Publishers

  • Monitoring the variations of the oxygen transfer rate in a full scale membrane bioreactor using daily mass balances

    Oxygen transfer in biological wastewater treatment processes with high sludge concentration, such as membrane bioreactor (MBR), is an important issue. The variation of α-factor versus mixed liquor suspended solids (MLSS) concentration was investigated in a full scale MBR plant under process conditions, using mass balances. Exhaustive data from the Supervisory Control And Data Acquisition (SCADA) ...


    By IWA Publishing

  • An Overview of Stevens' Approach to Making Remote Communications Simpler, More Flexible and Incredibly Reliable

    The power of the cloud’s simplicity, flexibility and reliability are the attributes at the heart of Measurements to Mind—Stevens’ M2M cloud-based data acquisition vision of shortening the communication path from the sensors to data on-line. What the sensor measures, the mind sees. Products that fly under the M2M ...

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