Nowadays, parameters, characteristics and functionality of measurement devices basically depend on microprocessors software. Software used in measurement devices overtakes functions from a hardware part of the device. For example, data processing algorithms, auto diagnostic control functions are implemented using software. Basically during verification of the device, just a hardware part of the device is verified. But devices metrological reliability depends on implemented auto diagnostic algorithm. In this article algorithm on how to estimate metrological reliability of measurements devices software will be presented.
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