FIELD: technology for improving transformers with vibrating elements, possible use in measuring equipment.
SUBSTANCE: method includes supporting frequency of voltage-controlled generator of harmonic oscillations at constant level during temperature changes. For that, generator is brought to state of resonance with vibrating element at maximum working temperature. Value of output signal from transformer of phases and nominal value of controlling heat-dependent element in generator control circuit are recorded at maximum working temperature. At minimum working temperature, value of output signal from phase transformer is determined. Depending on transformation function of harmonic oscillation generator, temperature coefficient sign is selected for controlling heat-dependent element. Nominal value of compensating heat-dependent element is determined. Instead of controlling heat-dependent element, heat-independent element and compensating heat-dependent element are installed into generator control circuit. As aforementioned heat-dependent and heat-independent elements, appropriate resistors or capacitors are used.
EFFECT: decreased additive temperature error of sensor with vibrating element under influence of stationary temperature modes.
2 cl, 4 dwg
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