The Experts below are selected from a list of 18 Experts worldwide ranked by ideXlab platform

Krzysztof Dragan - One of the best experts on this subject based on the ideXlab platform.

  • application of rlc filters and Analog circuits for increasing information bandwidth of Channels of data acquisition units
    International Committee on Aeronautical Fatigue, 2019
    Co-Authors: Kamil Kowalczyk, Michal Dziendzikowski, Artur Kurnyta, Patryk Niedbala, Krzysztof Dragan
    Abstract:

    Fatigue cracks can be detected and monitored by using resistive crack propagation sensors (CPS). Usually the sensor is composed by a series of conductive strands connected in parallel. When the crack propagates underneath the sensor, subsequent strands of the sensor are breaking down which results in increase of the sensor’s resistance. Therefore, by tracking the resistance of the sensor, the condition of the structure being monitored can be inferred. However, due to nonlinear behavior of the parallel connection resistance, usually CPS sensors are unidirectional only, unless the geometry of individual sensor’s strands is designed properly. Also, the result of the measurement can be influenced by many factors, e.g. the temperature, acting not only on the sensor itself, but also on other elements of the measuring system, which can bias the results and increase risk of false calls. In the paper the design of an Analog device capable to track integrity of every strand of a sensor or make measurements of several CPS using single Analog Input Channel is presented. The underlying idea is based on properly designed RLC band-pass filter. An example of the implementation and computer simulations as well as results of first laboratory tests are also delivered in the paper.

Kamil Kowalczyk - One of the best experts on this subject based on the ideXlab platform.

  • application of rlc filters and Analog circuits for increasing information bandwidth of Channels of data acquisition units
    International Committee on Aeronautical Fatigue, 2019
    Co-Authors: Kamil Kowalczyk, Michal Dziendzikowski, Artur Kurnyta, Patryk Niedbala, Krzysztof Dragan
    Abstract:

    Fatigue cracks can be detected and monitored by using resistive crack propagation sensors (CPS). Usually the sensor is composed by a series of conductive strands connected in parallel. When the crack propagates underneath the sensor, subsequent strands of the sensor are breaking down which results in increase of the sensor’s resistance. Therefore, by tracking the resistance of the sensor, the condition of the structure being monitored can be inferred. However, due to nonlinear behavior of the parallel connection resistance, usually CPS sensors are unidirectional only, unless the geometry of individual sensor’s strands is designed properly. Also, the result of the measurement can be influenced by many factors, e.g. the temperature, acting not only on the sensor itself, but also on other elements of the measuring system, which can bias the results and increase risk of false calls. In the paper the design of an Analog device capable to track integrity of every strand of a sensor or make measurements of several CPS using single Analog Input Channel is presented. The underlying idea is based on properly designed RLC band-pass filter. An example of the implementation and computer simulations as well as results of first laboratory tests are also delivered in the paper.

Zhao Jin-rong - One of the best experts on this subject based on the ideXlab platform.

  • PLC Analog Input Channel and its Application in the Data Collection and Process Field
    Journal of Shanghai Institute of Technology, 2003
    Co-Authors: Zhao Jin-rong
    Abstract:

    With the development of the micro electronic and microcomputer control,the operation and I/O function of the programmable logic controller has become increasingly powerful.After introducing the A/D and D/A,PLC is currently able to solve more than the simple logic control of discrete output.Taking Modicon Micro PLC Analog Channel as example,it is fully described how to apply the PLC Analog Channel to the field of data collection and process,including the hardware deployment,working flow and the detail of ladder program.

Wu Shui-lan - One of the best experts on this subject based on the ideXlab platform.

Michal Dziendzikowski - One of the best experts on this subject based on the ideXlab platform.

  • application of rlc filters and Analog circuits for increasing information bandwidth of Channels of data acquisition units
    International Committee on Aeronautical Fatigue, 2019
    Co-Authors: Kamil Kowalczyk, Michal Dziendzikowski, Artur Kurnyta, Patryk Niedbala, Krzysztof Dragan
    Abstract:

    Fatigue cracks can be detected and monitored by using resistive crack propagation sensors (CPS). Usually the sensor is composed by a series of conductive strands connected in parallel. When the crack propagates underneath the sensor, subsequent strands of the sensor are breaking down which results in increase of the sensor’s resistance. Therefore, by tracking the resistance of the sensor, the condition of the structure being monitored can be inferred. However, due to nonlinear behavior of the parallel connection resistance, usually CPS sensors are unidirectional only, unless the geometry of individual sensor’s strands is designed properly. Also, the result of the measurement can be influenced by many factors, e.g. the temperature, acting not only on the sensor itself, but also on other elements of the measuring system, which can bias the results and increase risk of false calls. In the paper the design of an Analog device capable to track integrity of every strand of a sensor or make measurements of several CPS using single Analog Input Channel is presented. The underlying idea is based on properly designed RLC band-pass filter. An example of the implementation and computer simulations as well as results of first laboratory tests are also delivered in the paper.