#TITLE_ALTERNATIVE#

• Main Author: SITORUS (NIM : 13105052); Pembimbing : Dr. Ir. Zainal Abidin, IRWANDI
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/16109
• Institution: Institut Teknologi Bandung

IC ADXL335 is a tri-axial accelerometer manufactured by Analog Device, Inc. This IC <br /> <br /> <br /> measures acceleration in the range of ± 3 g. The bandwidth of this IC is in the range of <br /> <br /> <br /> 0.5-1.600 Hz for x and y axes and in the range of 0.5-550 Hz for z axis. This IC has a <br /> <br /> <br /> small dimension with length of 4 mm, width of 4 mm, and thickness of 1.45 mm. To be <br /> <br /> <br /> used for measurement, this IC needs housing. In this research two housings for IC <br /> <br /> <br /> ADXL 335 were designed, modeled, and made. <br /> <br /> <br /> There are two prototypes housing of IC ADXL335 designed, made, and tested in this <br /> <br /> <br /> research. Both of these prototypes were designed using Autodesk Inventor 2010. <br /> <br /> <br /> Prototype 1 has length of 30 mm, width of 30 mm, and height of 35 mm. Meanwhile, <br /> <br /> <br /> Prototype 2 has length of 22 mm, width of 23 mm, and height of 25 mm. Both of these <br /> <br /> <br /> prototypes were modeled using ANSYS 11 to find the natural frequencies and mode <br /> <br /> <br /> shapes. Based on the design and model results, both of these prototypes were then made. <br /> <br /> <br /> Then, the ICs were installed in these housing, each of these prototypes forms a system, <br /> <br /> <br /> i.e. an Accelerometer Prototype 1 and an Accelerometer Prototype 2. Both of these <br /> <br /> <br /> accelerometer prototypes were then tested using a calibration. This testing was done <br /> <br /> <br /> using three pieces of connecting cable, from power supply to the MSA (Multichannel <br /> <br /> <br /> Spectrum Analysis) with length of 2 m, 10 m, and 100 m. <br /> <br /> <br /> Based on the testing results, it can be concluded that both of these accelerometer <br /> <br /> <br /> prototypes have a good performance. They have sensitivity in the range of 270-330 <br /> <br /> <br /> mV/g. In addition, Accelerometer Prototype 1 has a bandwidth of 20-720 Hz and <br /> <br /> <br /> Accelerometer Prototype 2 has a bandwidth of 20-850 Hz.