HIGH-SPEED WEIGHING SYSTEM DESIGN USING GEOMETRIC APPROACH

• Main Author: Alfath S D, Nawridha
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/71314
• Institution: Institut Teknologi Bandung

Weight measurement plays an important role in several industries. This measurement requires high accuracy since small errors can cause substantial loss in revenue. While the demand for higher volume of production increases over time, the weight measurement should also be able to keep up with the production speed. However, load cell as the transducer has an oscillatory response and high settling time. A high-speed weight measurement should be able to extract the static value while the response is still in transient state with good accuracy. There have been multiple methods to estimate the weight value utilizing the information from the transient state. In this research, a measurement system is designed and manufactured to perform a high-speed weight measurement with a set of specifications based on the load cell utilized (LPX-100kg). The method to estimate the static value is using a geometric approach proposed by Kesilmis and Baran (2016). To perform the measurement, a step input of load is given to the system by removing the base of the load while it is hung to the measurement system. By only using peaks and valleys positions from the oscillation of the transient response in a short window of time, the steady-state value is estimated. The process is performed by Arduino as the microcontroller and the result is shown in LCD. MATLAB as the computation software is used to build the estimation program and analyzing the load cell response before deploying the program directly to Arduino board using the MATLAB-Arduino support package.