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首页新闻中心 AccuBeat晶振用于空间解决方案的原子钟

AccuBeat晶振用于空间解决方案的原子钟

来源:http://www.dgkjly.com 作者: 2022年04月27
AccuBeat晶振用于空间解决方案的原子钟,太空任务和深空探索计划依赖于高精度原子钟,AccuBeat很自豪能够被选中为欧洲航天局(ESA) 的JUICE(木星冰月探测器)任务开发和生产超稳定振荡器(USO) 。
AccuBeat用于深空的空间合格超稳定振荡器 (USO) 解决方案将作为任务中计时的中心来源,并将成为由以色列魏茨曼研究所的Yohai Kaspi教授和Eli Galanti博士领导的无线电科学掩星实验的一部分与罗马La-Sapienza大学的Luciano Iess教授合作。正如Kaspi教授在附信中提到的那样赞赏 “基于AccuBeat开发的USO的出色稳定性,我们期望获得前所未有的科学回报,这使我们能够首次以极高的准确度表征木星大气的垂直结构,降至2 bar的水平。” 计划中的实验将通过跟踪穿过大气层的无线电波的相位变化来探测木星的大气层,同时航天器使用AccuBeat的超高稳定性频率源传输到地。
AccuBeat的USO是一种高稳定性石英晶体振荡器,采用高Q晶体谐振器和100µ开尔文范围内的高温稳定性。由AccuBeat设计的USO在1到1000秒的积分常数下,其艾伦偏差明显优于5E-13的要求规格,使其成为同类中最稳定的振荡器,专为深空探索而设计。AccuBeat的USO旨在满足此规范,同时经受苛刻的EMC影响和木星周围的恶劣环境,某些内部组件的辐射水平高达100kRad。

JUICE是欧洲航天局(ESA) 的旗舰项目,2022年5月,该航天器将启程前往木星,行程近6亿公里,预计2030年到达木星。三年半的时间里,JUICE将在 AccuBeat为深空探索设计的USO的帮助下环绕这颗巨大的行星,探索其动荡的大气层、巨大的磁层和一组脆弱的暗环,并研究其三个最大的冰卫星——木卫二、木卫三和卡利斯托。JUICE项目经理 Vincent Poinsignon 说:“我们的目标是调查这些冰壳下是否存在液态海洋,这些海洋可能含有有机成分甚至生命。” 
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?AccuBeat的AR81专为满足 Galileo(欧洲GNSS卫星和导航系统)的要求而设计。AR81是一款1U、19英寸机架安装单元,具有超高稳定性和超低相位噪声铷频率标准。该装置有六个10MHz输出和两个冗余电源。AccuBeat的AR81是伽利略地面设备不可分割的一部分,因为项目的初始阶段。
空中客车防务与航天公司展示了将于2022年前往木星的JUICE(木星冰月探索者)航天器。它的主要任务是探索这颗巨大行星的三个最大的冰卫星,以期确定这些矮行星上是否可能存在生命。这些实验将在AccuBeat的USO的帮助下进行。
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诚征下列地区 晶振 | 石英晶振 | 圆柱晶振 | 贴片晶振 | 陶瓷晶振 | 石英晶体谐振器 | 频率元件 的合作伙伴:
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