Technical Flight of Solar Battery System for BESS-Polar Experiment

南極周回長時間宇宙線観測計画「BESS-Polar」において，電力源の確保は最も重要な開発課題の一つである．測定器の消費電力６００Wを２０日間のフライト期間中連続して供給することが求めらるこのシステムは，同時に重量制限３００ｋｇなど気球実験特有の制約も満たさなければならない．これまでのBESS実験で用いられてきた一次電池に代わり太陽電池を使った新しい電力システムの開発が進められており，そのシステムの検証およびエアロダイナミクスの測定を目的として気球実験が三陸にて実施された．本稿では，太陽電池システムの概要を紹介する共に，三陸実験について報告する．
Establishment of a reliable power supply is one of our new challenges to acheive "BESS-Polar experiment", a long-duration balloon flight in Antarctica. The power system is required to enable the detector system operation with a capacity of 600W during a flight period of 20 days, as well as to meet balloon experimental constraints including weight restriction of 300kg. solar battery is newly adapted as a power source, instead of primary battery utilized in the present BESS system. In order to verify performances of the system being developed, a technical balloon flight at Sanriku Balloon Centre was carried out. This report describes the overview of the solar battery system and the outline of the flight.
資料番号: SA0200106000