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首頁(yè)新聞中心 AccuBeat晶振用于空間解決方案的原子鐘

AccuBeat晶振用于空間解決方案的原子鐘

來(lái)源:http://www.luck-168.com.cn 作者: 2022年04月27
AccuBeat晶振用于空間解決方案的原子鐘,太空任務(wù)和深空探索計劃依賴(lài)于高精度原子鐘,AccuBeat很自豪能夠被選中為歐洲航天局(ESA) 的JUICE(木星冰月探測器)任務(wù)開(kāi)發(fā)和生產(chǎn)超穩定振蕩器(USO) 。
AccuBeat用于深空的空間合格超穩定振蕩器 (USO) 解決方案將作為任務(wù)中計時(shí)的中心來(lái)源,并將成為由以色列魏茨曼研究所的Yohai Kaspi教授和Eli Galanti博士領(lǐng)導的無(wú)線(xiàn)電科學(xué)掩星實(shí)驗的一部分與羅馬La-Sapienza大學(xué)的Luciano Iess教授合作。正如Kaspi教授在附信中提到的那樣贊賞 “基于A(yíng)ccuBeat開(kāi)發(fā)的USO的出色穩定性,我們期望獲得前所未有的科學(xué)回報,這使我們能夠首次以極高的準確度表征木星大氣的垂直結構,降至2 bar的水平。” 計劃中的實(shí)驗將通過(guò)跟蹤穿過(guò)大氣層的無(wú)線(xiàn)電波的相位變化來(lái)探測木星的大氣層,同時(shí)航天器使用AccuBeat的超高穩定性頻率源傳輸到地。
AccuBeat的USO是一種高穩定性石英晶體振蕩器,采用高Q晶體諧振器和100µ開(kāi)爾文范圍內的高溫穩定性。由AccuBeat設計的USO在1到1000秒的積分常數下,其艾倫偏差明顯優(yōu)于5E-13的要求規格,使其成為同類(lèi)中最穩定的振蕩器,專(zhuān)為深空探索而設計。AccuBeat的USO旨在滿(mǎn)足此規范,同時(shí)經(jīng)受苛刻的EMC影響和木星周?chē)膼毫迎h(huán)境,某些內部組件的輻射水平高達100kRad。

JUICE是歐洲航天局(ESA) 的旗艦項目,2022年5月,該航天器將啟程前往木星,行程近6億公里,預計2030年到達木星。三年半的時(shí)間里,JUICE將在 AccuBeat為深空探索設計的USO的幫助下環(huán)繞這顆巨大的行星,探索其動(dòng)蕩的大氣層、巨大的磁層和一組脆弱的暗環(huán),并研究其三個(gè)最大的冰衛星——木衛二、木衛三和卡利斯托。JUICE項目經(jīng)理 Vincent Poinsignon 說(shuō):“我們的目標是調查這些冰殼下是否存在液態(tài)海洋,這些海洋可能含有有機成分甚至生命。” 
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?AccuBeat的AR81專(zhuān)為滿(mǎn)足 Galileo(歐洲GNSS衛星和導航系統)的要求而設計。AR81是一款1U、19英寸機架安裝單元,具有超高穩定性和超低相位噪聲銣頻率標準。該裝置有六個(gè)10MHz輸出和兩個(gè)冗余電源。AccuBeat的AR81是伽利略地面設備不可分割的一部分,因為項目的初始階段。
空中客車(chē)防務(wù)與航天公司展示了將于2022年前往木星的JUICE(木星冰月探索者)航天器。它的主要任務(wù)是探索這顆巨大行星的三個(gè)最大的冰衛星,以期確定這些矮行星上是否可能存在生命。這些實(shí)驗將在A(yíng)ccuBeat的USO的幫助下進(jìn)行。
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誠征下列地區 晶振 | 石英晶振 | 圓柱晶振 | 貼片晶振 | 陶瓷晶振 | 石英晶體諧振器 | 頻率元件 的合作伙伴:
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