Testing of electronic control systems (further “regulators”) FADEC for gas turbine engines in the manufacturer laboratory conditions is described. The main attention is devoted to the control of the metrological characteristics of the regulator measuring channels. The results of constructively separated sensor imitators application, what interacts with the controller, including DBSCT and vibration sensor, are presented in this article. It is shown the expediency and results of the stand application, which united all the imitators necessary for testing of serial production. Data on verifying imitators and ensuring accuracy coefficients is given. In the framework of testing the electronic regulators of gas turbine engines, JSC Element experts developed, manufactured and certified all the necessary specialized stands that provide both a full-fledged inspection in the test-laboratory of monitoring and functions checking and additionally checking of the metrological characteristics of the regulators measuring channels. For reduced testing time in the serial production of the RDTs-450M regulator, in addition to the previously used structurally isolated sensors imitators, a stand was designed and manufactured combining all the imitators necessary for measuring channels testing. This new imitator provided usability and reduced testing time. The simulators used for test procedure. These simulators provide output signals of real sensors. These signals check by standardized measuring equipment. Systematic verification use certified stands, which create a normalized influence on the input signal of measuring (pressure, vibration acceleration, shaft rotation angle are also available). Further improvement of the test equipment will consist in automating of procedures for checking the metrological characteristics of the regulators channels by creating of programmatically controlled simulators. The replacement of individual simulators with a specialized stand markedly increased the productivity of work on the calibration and verification of the regulators measuring channels.


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