Intelligent Measuring Instruments. Maximum Reliability of Measuring Information, Minimum Metrological Maintenance

Abstract − It is shown that for increasing the reliability of measurement information received from instruments built into the equipment, these instruments should have the “in-tellect ” and structural redundancy. Besides of capability to operate under changing condi-tions and noise, they can realize automatic check of me-trological serviceability, and when a single defect occurs, they can change the structure and/or algorithm of input data processing, inform an operator about the defect appearance. The verification period for them is commensurable with their service life. A new definition of an intelligent measuring instrument is suggested, which takes into account these peculiarities. The main requirements to intelligent instruments are formulated. The description of an intelligent instrument for control and diagnostics, which is used in the control and safety system of a nuclear power plant in Russia, is presented