Authors : Agit Zulharman, Agus Mulyana and Ginaldi Ari Nugroho
Abstract: Atmosphere balloon for weather monitoring and research application have long been developed in Indonesia. However, the lack of this atmosphere balloon were difficult to control for its movement. By reducing the vertical movement of the balloon, it could controlled the balloon in certain altitude. Atmosphere balloon altitude control that proposed in this research is by using air control method applied in a ballast totex balloon. The control are conducted by filling the air into ballast using dual head pump NOOA-FRD and discharge the air naturally using air pressure inside the ballast controlled by valve integrated with servo motor as an actuator. If the uplift of the atmosphere balloon filled with hydrogen reaching zero due to the ballast, then balloon will float in certain altitude above surface. Control activation process in the payload conducted wirelessly through radio signal transmission in 433 MHz frequency. Combination of all the component with this method will result a control system that able to resist the uplift of an atmosphere balloon, unfortunately this system in still unstable on floating in the desired altitude. This system still needs to be developed in the part of filled and discharge of the ballast more efficiently.
Agit Zulharman, Agus Mulyana and Ginaldi Ari Nugroho, 2017. Build and Design of Atmospheric Balloon Altitude Control Based on Multiwii. Journal of Engineering and Applied Sciences, 12: 1-9.