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氦气
的话更好。。
氦-氖激光器
诺贝尔和平奖
14年3个月前
回复于
电子技术
内容:引用第1楼虎哥于2010-10-27 00:56发表的 :
氦气
和氖气要从玻璃管中跑出来。
关于气球30000米以上高空摄影问题初步构思
binglayueshe
10年2个月前
回复于
航空技术
内容:引用 虎哥:用
氦气
是明智的,对这种应用而言,价格也不算特别贵,找大的气体厂,一般一瓶子可以放出7方到8方。
星火计划 (用了一个寒假发射的探空气球)
水银发生器
9年8个月前
回复于
航空技术
内容:当然用
氦气
的话更好。。
回 4楼(小猪) 的帖子
power_rdx
11年10个月前
回复于
机械与工具
内容:但是他们说,气球里面的空气不属于材料本身,不应计算重量,所以我们的气球密度比
氦气
还低。
转帖 电火箭
虎哥
10年0个月前
回复于
喷气推进
内容:国内西工大也有做过微波等离子体推进的实验,科创仪表局有人做过微波驱动
氦气
的,很轻松(当然理论要过关,腔体中的场强要达得到),但
氦气
难以在轨保存。
[研究课题]题目:可改变体积大小的飞行器的设计
立体派
10年5个月前
回复于
喷气推进
内容:本帖最后由 立体派 于 2014-8-5 13:13 编辑 edges00 发表于 2014-8-4 22:33
氦气
,气球。,要上升时把储气罐里的
氦气
充到气球里,要降低高度把气球里的
氦气
用压缩机抽到储气罐里 按题目要求,应该说是做对了,但不能说做好了。
探讨发射小卫星的可行性及路线图问题
大同主义
12年11个月前
回复于
喷气推进
内容:先用大型
氦气
球,将火箭连同卫星设备送上高空,再利用气压传感装置自动给火箭点火,火箭倾角预先布置好。。。
回 12楼(拔刀斋) 的帖子
极度深寒
13年1个月前
回复于
喷气推进
内容:
氦气
也很贵,成本高没法否认,但至少比多级火箭达到同一高度技术难度低。
关于气球30000米以上高空摄影问题初步构思
虎哥
10年2个月前
回复于
航空技术
内容:用
氦气
是明智的,对这种应用而言,价格也不算特别贵,找大的气体厂,一般一瓶子可以放出7方到8方。
氢气球航拍地球的问题
1996615xp
10年2个月前
回复于
航空技术
内容:经调查,炸人气球充的是国家明令禁止的易燃易爆气体——氢气,而不是规定充的安全惰性气体——
氦气
。
回 1楼(jrcsh) 的帖子
hefanghua
13年1个月前
回复于
喷气推进
内容:充入的气体如果是氢气,在点火发射的时候会发生空中爆炸,不能采用,所以必须是
氦气
。
新闻:美国批准氦气球游太空 需花费7.5万美元
幻痛的心
11年2个月前
回复于
航空技术
内容:··氢气不是容易控制的,早期飞艇的失败正是没有认识到它的危险性和不可控性,作为军用的软式飞艇在过去 应为生存问题也被迫放弃,一颗子弹就报销,成员落海··二战结束后 ,飞艇和探空用气球都改用安全性能高的
氦气
世界最大对撞机将制造宇宙最低温度
hamdad
16年5个月前
回复于
极客DIY
内容:当年德国齐柏林飞艇终于淡出历史舞台,是由于氢气的高度不安全性引发的N次事故,其实核心原因是当时制造
氦气
的关键技术被霉帝所垄断。
目前KC上所有的放电间隙开关汇总+分析+实验报告
虎哥
2年4个月前
回复于
电磁炮
内容:因此,充装氢气、
氦气
的放电管比空气快。,但
氦气
太容易电离,也就是绝缘能力太差,因此在高速放电管中,能用的就只有氢气了。
[原创]我以前的发明杂贴集合
lread
11年6个月前
回复于
极客DIY
内容:超导电机,语音转译器,
氦气
球通信,这几个我真的很想做我的梦想,只是我还是一名汽车电工
自D飞艇,瞎折腾了1个月,估计还得2个月随后跟进
liy
11年4个月前
回复于
极客DIY
内容:幻痛的心 发表于 2013-9-14 22:59 用
氦气
充填的巨型气球载人实验已经很早就成功了,氢气在早期飞艇应用已经宣告失败,想想齐柏林飞艇的结局, ...所有配件都称量过包括碳纤维棒、泡沫板、电力部分
关于气球30000米以上高空摄影问题初步构思
binglayueshe
10年2个月前
回复于
航空技术
内容:引用 虎哥:用
氦气
是明智的,对这种应用而言,价格也不算特别贵,找大的气体厂,一般一瓶子可以放出7方到8方。
液态氦
大仙
16年5个月前
发表于
电气电工
内容:前面已经讲过拉姆赛在空气中找
氦气
的故事。,卡美林·奥涅斯决心把
氦气
也变成液体。 ,1908年7月,卡美林·奥涅斯成功了,
氦气
变成了液体。,要得到液态氦,必须先把
氦气
压缩并且冷却到液态氢的温度,然后让它膨胀,使温度进一步下降,
氦气
才能变成液体。 ,当然还要考虑把空气、氢气以及
氦气
液化的汉普松、卡美林·奥涅斯等人的功劳。
飞机滞空的一个想法
幻痛的心
11年4个月前
回复于
极客DIY
内容:飞艇的名字为Aeroscraft,美国政府拨款300万的研究经费,气囊用
氦气
,外部有防弹层,预防气囊破裂后 飞艇急速坠落,可出租,但价格昂贵,每年租金将会超过2500万美元,我国南海要是用此飞艇用于预警
自D飞艇,瞎折腾了1个月,估计还得2个月随后跟进
幻痛的心
11年4个月前
回复于
极客DIY
内容:用
氦气
充填的巨型气球载人实验已经很早就成功了,氢气在早期飞艇应用已经宣告失败,想想齐柏林飞艇的结局,塑料薄膜有点···单薄 考虑模型制作请先计算好数据,微型飞艇材质为硬质薄膜,大型航模飞艇带有少量轻质龙骨
Re:回 1楼(jrcsh) 的帖子
jrcsh
13年1个月前
回复于
喷气推进
内容:充入的气体如果是氢气,在点火发射的时候会发生空中爆炸,不能采用,所以必须是
氦气
。
Re:回 1楼(jrcsh) 的帖子
拔刀斋
13年1个月前
回复于
喷气推进
内容:充入的气体如果是氢气,在点火发射的时候会发生空中爆炸,不能采用,所以必须是
氦气
。
定向平飘探空气球系列实验记录
ddomax
5年5个月前
发表于
航空技术
电子技术
内容:2019.7.3 第一次发布飞行过程路径:重庆→四川→重庆→湖北→湖南飞行时间(到通信中断前):10小时35分钟飞行路程(到通信中断前):445公里飞行位移(到通信中断前):309.94公里升力结构填充气体:
氦气
地面充气总体积
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