It is necessary to ensure appropriate information content of the measuring instruments used for intelligent diagnosing systems of energy and technological complexes based on the measurement of dynamic parameters. Sensors and measuring equipment should possess sufficient accuracy, reliability, speed and consistency of performance. Types of sensors for measuring dynamic parameters are selected depending on the systems structure. They can be, for example, sensors for the electrohydromechanical systems of these complexes, pressure sensors, as well as sensors of flow and temperature of the working media, displacement of moving elements and vibration of the base members. The type of sensor intended for use in the diagnostic system is largely determined by the dynamics of the processes taking place in it. It is necessary that the sensors satisfy their performance requirements. If the sensors have lower speed than is necessary for the process dynamics in the electrohydromechanical system, it can lead to dynamic measurement error and an error in the diagnostics of technical condition. In technical literature, the requirement for the sensor speed is indicated by the fact that it should be an order of magnitude higher than the dynamics of the processes occurring in the system. This approach is not acceptable for choosing the type of sensors for diagnostic systems, taking into account the process dynamics. Firstly, sensors for measuring with this required parameter may not be available. Secondly, even if there is a sensor with a parameter close in speed to the dynamics of the system processes, it is necessary to know in advance what dynamic error it can lead to and how it will affect the accuracy of the diagnostic system. An analytically generalized dependence of the dynamic measurement error of electrohydromechanical system parameters on the relative sensor speed is obtained in this paper. This dependence allows you to choose a sensor with a dynamic error that does not exceed a given value. The calculation of the dynamic measurement error is shown using the MI-8 helicopter hydraulic system as an example.


    Access

    Download


    Export, share and cite



    Title :

    Calculating the dynamic error in measurement of electrohydromechanical system parameters, taking into account the operating speed of sensors


    Contributors:


    Publication date :

    2020




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Vehicle guidance system and method taking into account environmental data when operating driving function

    SCHULTZ JONATHAN / DORINEJ HAMID / GUENTHER MARIO et al. | European Patent Office | 2023

    Free access

    AUTOMATED CRANE CONTROLLER TAKING INTO ACCOUNT LOAD- AND POSITION-DEPENDENT MEASUREMENT ERRORS

    FAKKELDIJ ROBERT / LADRA UWE / RECKTENWALD ALOIS | European Patent Office | 2018

    Free access

    Unit commitment taking into account reactive power

    Li, Xiangjun | Online Contents | 2008



    Automated crane controller taking into account load- and position-dependent measurement errors

    FAKKELDIJ ROBERT / LADRA UWE / RECKTENWALD ALOIS | European Patent Office | 2019

    Free access