Perancangan Alat Pengukur Sensitifitas Sensor Arus ACS712 dari 185 mV/A Menjadi 976 mV/A dengan Menggunakan Amplifier AD620 Kalman Filter dan Arduino

Abstract

The electric meter has been calibrated by analogizing it to a standard or abso-lute electric meter. In the measurement system there is what is called a unit, there are two types of units divided into basic units and derived units. The basic units can be broken down into length, mass, and time which are also called principal units. And in certain physics, electricity is also classified in the basic units of electric cur-rent, temperature and light intensity. The system of units is commonly called SI or what we know as International Units. Measurement of electric current using the ACS712 current sensor, the type and specifications of the current sensor can affect the accuracy of the measurement. The cause of the emergence of an electric current is a load, according to Ohm's law the load is directly proportional to the current, this proves that the greater the load used, the greater the current that will appear, the more current that passes through the cable conductor, it will threaten the safety of equip-ment and users of electrical energy. alone. This sensor is a current sensor that can be operated to detect electrical loads. Kalman filter is an effective filter and esti-mates mass in linear dynamic systems, from several noise calculations. Kalman fil-ter is very useful especially in navigation and surroundings. In a theory, the Kalman filter is also called an algorithm or a collection of various mathematics that can pro-duce simple calculations and has the aim of variance against other sources, filters are very useful in various fields, namely estimation of the past. If we enter a positive supply current in the non-inverting input, then the result obtained is that the positive current does not change, if we enter a negative supply in the non-inverting input, then the result obtained is that the negative current does not change. Resistors also have various types that we can find in electronic circuits, including wire resistors, charcoal resistors, and metal oxide resistors. Wire resistors are resistors with a coil of wire material. Therefore, the resistance of this resistor is determined from the length of the wire wrapped around it.