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Advanced applications of a tilt sensor, such as in disaster management, requires a system to test the performance of a tilt sensor before being applied in the field. Commercially, Ideal Aerosmith developed various models of two- and three-axis positioning and rate table system with high resolution and accuracy. However, the utilization of the system is more suitable for military and aerospace technologies...
A digital potentiometer, which can be used to implement automatic calibration procedure in a circuit, to control a switch of a power supply, or as a load tester, was developed by using a light-dependent resistor (LDR) and implementing a proportional controller. It consisted of a light emitting diode (LED) used to change the resistance of LDR, two LDRs set as the output and the feedback of the controller,...
A simple low-scale solar simulator was developed. Three different lamps, which are conventional lightbulb, softone lightbulb, and halogen lamp, were employed as light sources. The halogen lamp, in fact, gave better intensity compared to the other lamps in which its intensity is closer to the field-measured sun intensity. In addition to measuring the light intensity distribution inside the simulator,...
The raise of land usage and human population increase the number of areas which are prone to landslide disaster. Real time monitoring system on these risk areas can minimize the losses caused by it. One physical phenomenon that can be observed from this disaster is ground movements. This paper discusses about the implementation of wireless sensor network for real time ground movement monitoring. The...
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