翻訳と辞書 Words near each other ・ Radiohead live performances ・ Radiohjälpen ・ Radiohola ・ Radiohuset ・ Radiohuset (Stockholm) ・ Radioimmunoassay ・ Radioimmunodetection ・ Radioimmunoguided surgery ・ Radioimmunoprecipitation assay buffer ・ Radioimmunotherapy ・ Radioinactive ・ Radioio ・ Radioiodinated serum albumin ・ Radioiodine (disambiguation) ・ Radioisotope heater unit ・ Radioisotope piezoelectric generator ・ Radioisotope renography ・ Radioisotope rocket ・ Radioisotope thermoelectric generator ・ Radiojazzgruppen ・ RadioJoyAlukkas.com ・ Radiokansel / Radio Pulpit ・ Radiola ・ Radiola (radio station) ・ Radiolab ・ Radioland Murders ・ Radiolaria ・ Radiolarite ・ Radiolate partula ・ Radiole Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Radioisotope piezoelectric generator ： ウィキペディア英語版 Radioisotope piezoelectric generator A Radioisotope piezoelectric generator converts energy stored in the radioactive material directly into motion to generate electricity by the repeated deformation of a piezoelectric material. This approach creates a high-impedance source and, unlike chemical batteries, the devices will work in a very wide range of temperatures. == Description == A piezoelectric cantilever is mounted directly above a base of the radioactive isotope nickel-63. All of the radiation emitted as the millicurie-level nickel-63 thin film decays is in the form of beta radiation, which consists of electrons. As the cantilever accumulates the emitted electrons, it builds up a negative charge at the same time that the isotope film becomes positively charged. The beta particles essentially transfer electronic charge from the thin film to the cantilever. The opposite charges cause the cantilever to bend toward the isotope film. Just as the cantilever touches the thin-film isotope, the charge jumps the gap. That permits current to flow back onto the isotope, equalizing the charge and resetting the cantilever. As long as the isotope is decaying - a process that can last for decades - the tiny cantilever will continue its up-and-down motion. As the cantilever directly generates electricity when deformed, a charge pulse is released each time the cantilever cycles. Radioactive isotopes can continue to release energy over periods ranging from weeks to decades. The half-life of nickel-63, for example, is over 100 years. Thus, a battery using this isotope might continue to supply useful energy for at least half that time. Researchers have demonstrated devices with about 7% efficiency with high frequencies of 120 Hz to low-frequency (every three hours) self-reciprocating actuators. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Radioisotope piezoelectric generator」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.