Rancang Bangun Sistem Pengukur Berat Barang Metode Half Bridge Menggunakan Koneksi Plx Daq Berbasis Arduino Nano

Abstract

The purpose of the Final Project Report is to implement a system of measuring the weight of goods in the warehouse area which helps us to measure the weight of an object in our daily life, for example in the warehouse and we can also read the measurement results in real time.The method used in this measurement is to use the halfbridge method and by using the PLX DAQ connection. How the HalfBridge type loadcell sensor works when a load is placed on an iron core, the resistance value to Strain Gauge will change which is issued through three wires, where cable as an excitation and one cable as an output signal to the control. the measurement data will be connected to the data logger system on the connection PLX-DAQ stands for Parallax Data Acqusitions is software used to record serial data sent by Arduino Uno to a computer. PLX DAQ program is used to display data from Arduino to Excel directly. PLX-DAQ can display graphs and read measurements in Realtime.The results of the comparison of the measurement of the mass value of the design tool with a digital balance with a zero correction of 0.07 grams. In the cellphone sample, the standard deviation value and error were 0.19 grams and 0.20%, respectively.In the aqua glass sample, the standard deviation values and errors were 0.23 grams and 0.18 °%, after that the iron samples obtained standard deviation values and errors were 0.14 grams and 0.09%, respectively. In the jar sample, the standard deviation value and error were 0.23 grams and 0.08%, respectively. In the thermos sample, the standard deviation values and errors were 0.5-1 gram and 0.06%, respectively.