Design features of thermal flow sensors for biomedical purposes

Abstract

It is shown that thermal flow sensors are characterized by high structural and technological compatibility with biomedical equipment and,  compared to other types of flow sensors, they most  fully meet the requirements for this equipment. The developed signal converters fully meet the requirements for modern biomedical equipment and  energy-saving low-voltage electronics (unipolar 3V  power supply), provide a negligible thermal effect on  the flow environment and are implemented on the  latest element base - high-precision CMOS railto-rail operational amplifiers, bidirectional multiplexers  of the type ADG, ADuC type microconverters,  powerful D-MOS HEX FET transistors, etc