CONVERTER OF PHYSICAL QUANTITY Russian patent published in 2002 - IPC

FIELD: information converters. SUBSTANCE: invention refers to converters which convert physical quantity, for instance pressure, acceleration or angular velocity, acting on sensitive element to electric signal proportional to physical quantity. Converter has frame, sensitive element, position pickup with capacitive converters, A C power supply source, electronic amplifier, inverse converter, first and second resistors. Electronic amplifier comes in the form of summing amplifier and D C amplifier. Converter is supplemented with inverter, former of rectangular pulses, first and second electron keys. Input of first electron key is connected to connection point of first resistor to one of electrodes of first capacitive converter and to one of inputs of summing amplifier. Input of second electron key is connected to connection point of second resistor to one of electrodes of second capacitive converter and to another input of summing amplifier. EFFECT: simplified circuit diagram of electronic amplifier, increased accuracy of measurement of physical quantity. 11 dwg