| Title |
Study on the Structure and Material Design of Shunt Current Sensor for Improving Sensing Operation Accuracy of IoT based Sensor |
| DOI |
https://doi.org/10.5370/KIEE.2021.70.3.483 |
| Keywords |
Shunt; IoT sensor; Analysis sensor; Temperature Coefficient of Resistance(T.C.R); Thermo electro motive force(Thermal E.M.F) |
| Abstract |
The technology of sensing is a technology that interprets and operates the shape, physical quantity, and type of an object moving from state A to state B. Sensing usually converts a changed physical quantity into a change in power. It can be divided into a conversion sensor, and an analysis sensor that detects and analyzes such changes in power. If the tolerance of the shunt, which is a current change analysis sensor, can be reduced, the accuracy of the entire sensor system can be improved. To this end, the alloy design in which a trace amount of the stabilizing element of the resistance temperature coefficient of manganese (Mn) and silicon (Si) was added could reduce the tolerance in environments such as temperature, short-time overload, and humidity. By improving the direction, it was possible to reduce malfunction due to thermoelectric power. Accordingly, in this study, a precision analysis shunt design method that can reduce thermoelectric power by changing the volume and structure of an alloy and a terminal with a resistance temperature coefficient of 38.35ppm/℃ was proposed |