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OwnerAndrzej Dunikowski, Jan Bednarczyk +3inventors
InventorsAndrzej Dunikowski, Jan Bednarczyk, Jerzy Keska, Tadeusz Pisarkiewicz, Andrzej Zamarski
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Electric system for a meter for measurements of density of the mixtures conveyed in pipelines. The system has a capacity sensor installed in a pipeline and being connected, via a capacitance transducer, with a system compensating temperature induced variations in capacity. The input of the said system is connected with a temperature sensor installed in the pipeline, while the output of the said system is connected with an indicator-recording system. Instead of being connected with the input of the system, the temperature sensor can be connected with the capacitance transducer which is then connected directly with the indicator-recording system. In the case of the mixture temperature's being constant or varying within a narrow range, the electric system of the meter comprises a capacity sensor connected, via the capacitance transducer directly with the indicator-recording system.
An electric system for a meter for the measurement of the content of a mixture being conveyed in a pipeline, said system comprising a capacity sensor installed in said pipeline, a mixer, a compensation system for frequency variations, a capacitance transducer including a measurement generator having a first input connected to the capacity sensor, a second input connected to the compensation system for frequency variations and an output connected to said mixer, a reference frequency generator having an output connected to said mixer, a series circuit connected to the output of said mixer including a low-pass filter, an amplifier, an amplitude limiter, a differentiating system, a pulse clipper, a generator of standard pulses and an integrating system;
Dependencies are inferred from the claim text.