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基于航模技术的探空火箭姿态自稳定装置
chenruixi
9个月12天前
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内容:🙃固定翼航模飞控+30A电调(外挂)+***^0x3f+这是目前微型探空火箭中实现姿态修正的最
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逆天
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极客DIY
内容:好麻烦,还得买一堆工具我这又没废品站,买不到旧货搞不出来
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sol81
12年10个月前
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内容:进一步降
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潜伏者
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回复于
喷气推进
内容:使用高氯酸钾/镁粉/A液,10ml注射器作为箭体,一秒内燃烧完毕,无推进剂造成的烧蚀,飞行距离>20m.求能高效催化高氯酸钾分解的催化剂和高氮高能的
低成本
燃料,最好为自由基聚合高分子
论电铸法制作固体火箭喷嘴火的可能性(及其他方法论述与实践)
磷磷钇
3个月19天前
回复于
喷气推进
内容:有没有一种可能电铸相较于搭建感应加热炉或者电弧炉以及浇铸模具来说对家庭实验者来说更降
低成本
,就论实在性的话直接机加工来的更好,毕竟完整的工业体系不是开玩笑的。
分享一个比XXXXXXXXXX更好的在线SDR网站
justinpiggy
7年10个月前
回复于
无线电
内容:还有这个变压器在各种
低成本
的ARM开发板上应用巨大。
日本研发“先进固体火箭” 预计2012年首射
拔刀斋
15年2个月前
发表于
喷气推进
内容:日本宇航探索局还在深入研究使用可在低于水沸的温度下融化并注入固体发动机的燃料,以期降
低成本
。,该项目的意图是降
低成本
。,设计工作中采用了多种方式降
低成本
。
如何区分功率管的真假
pldtv
10年0个月前
回复于
电气电工
内容:兄弟真的用心了,我这个不是开关电源,实际上是大功率的电子镇流器,特殊设备上面用的,之前也画图在科创请教过科友,怕影响不好才说是开关电源,自己是做这一块工程的,要用到这个东西,但买国外的太贵了,所以才自己仿制降
低成本
【集思广益】如何从城市供热管网中榨取更多的热量
我说要有光
14年3个月前
发表于
极客DIY
内容:所以想听听大家有没有什么好的想法,方案应尽可能以
低成本
、低难度、操作简单为宜
穷鬼买频谱分析仪,求指点
warmonkey
13年5个月前
回复于
电子技术
内容:LZ可以等科创推出
低成本
便携式频谱仪示波器做频谱仪,性能太低了,ADC的动态范围不够。
真正的全金属复用发动机.难以企及的高效
power_rdx
16年10个月前
回复于
喷气推进
内容:我的塑料-钢复合火箭比冲都有100多了可成本才10块钱另有塑料-纸制
低成本
简易火箭,采用补偿燃烧室,达到了145的比冲。
做个20MM的金属拉喷有没有必要呢。
qw2582
13年11个月前
发表于
喷气推进
内容:所以想到用20或25的PPR加金属喷口 加金属堵头 降
低成本
。
论电铸法制作固体火箭喷嘴火的可能性(及其他方法论述与实践)
Gdeestan
3个月19天前
回复于
喷气推进
内容:非得谈真正的“实在性”那可能存在一些误解,我以为你在找寻一些“
低成本
的折腾方式”
自制特斯拉线圈(高度1.5米左右)
knsu+rnx
10年11个月前
回复于
高电压技术
内容:月下孤狼 发表于 2014-1-31 15:39 用铜丝塑胶皮电线=特高成本+超低Q值 用铜丝漆包线=中成本+高Q值 用铝丝漆包线=
低成本
+低Q值 主要是没有足够的漆包线,所以只能用细电线代替
做了一个光驱雕刻机
fuwen0202
11年1个月前
回复于
极客DIY
内容:daxus 发表于 2013-12-8 12:23 果断收藏,把笔改成刀,刀上加一个简单的上下步进装置就可以刻PCB了吧,
低成本
雕刻机的节奏啊嗯,还要再拆一个光驱,然后做个架子价格电动机就行,我看他这个
来聊聊垃圾分类吧
陈润东
11年2个月前
发表于
极客DIY
内容:有没有办法用
低成本
的智能控制使得垃圾在一开始放入垃圾桶的时候就分类好呢(或者说使其方便下一步的处理)?
回 49楼(逝水流) 的帖子
jrcsh
11年10个月前
回复于
机械与工具
内容:
低成本
下~~~效率是上不去的, 我只能说减轻你的劳动强度, 增量一个吊提的东西。
大功率微波定向能加热装置,微波无线输电装置,微波武器(微波炮)的设计与DIY制作
量子隧道
6年6个月前
回复于
EMP和强微波
内容:为了提高粘接力,
低成本
板材往往在铜箔内面故意做粗糙,导致表层电流在凹凸不平的表面做曲线流动,额外增加了很多损耗。
太空气球,回传高空图像
luobinme
11年2个月前
回复于
航空技术
内容:目前
低成本
的图传系统最好的就是使用航模爱好者用的5.8G图传,安装非常简单~!
抛砖引玉——关于业余条件下探空气球可以搭载的实验/传感器和回收问题的讨论
zx-16533
6年1个月前
回复于
航空技术
内容:YY过的一个
低成本
方案(考虑到这个方案的成本较低,回收实物的花费可能比成本还贵,因此不考虑回收实物):用三百大洋的山寨安卓手机加物联卡配合降落伞,安全落地后用移动网络回传全部数据。
为了预防青年痴呆,自己设计制作了一个线性稳压电源。
ehco
13年10个月前
回复于
电子技术
内容:分段输入方式还凑合,但是建议使用双极型晶体管,毕竟MOSFET不擅长线性区再者,没必要省掉两个电容来降
低成本
,使可靠性大大减小又不是设计IC,电容当用则用。
科技故事:一个小电网的崩溃
杂工1544
2年10个月前
回复于
电气电工
内容:应用于电池离子交换膜需要有很强的透过能力和离子选择性,并且需要在恶劣的工况(强氧化剂,强酸强碱)下有着较长的寿命,并且还得
低成本
。
做磁搅挺赚钱的。。。
虎哥
15年8个月前
回复于
跳蚤市场
内容:研究一下如何
低成本
出高档货吧。
要磁搅的报名…
93°
15年8个月前
回复于
跳蚤市场
内容:我能压
低成本
,并且价格比你的还低,那自然不用管我赚多少了
DIY手机
顾咪咪
12年3个月前
回复于
极客DIY
内容:若干年前 山寨机刚流行的时候,我见过有DIY手机的,但是外形不能D,只是你需要什么功能,他就可以给你加上相应模块,然后刷系统,比如你要收音机,就给你加个收音模块,你要WIFI,GPS,等等,但是产量低,,成本高了,那时候加一个WIFI模块的300快呢,大概是06年吧,忘记了。
天叔精品Diy之三:天文观景望远镜
天易
13年2个月前
发表于
极客DIY
内容:下面天叔发布自己D的一款超
低成本
的镜子——在D的过程中曾被同好们称为“疯狂的举动”——整套成本不到150元,效果却出奇的好——与1500元买的牌子货(熊猫90450)相比,除视场及亮度小一点外,其他差别不大
[讨论]大家来讨论液压伺服机器人驱动的实现要点
kknd
12年6个月前
回复于
机械与工具
内容:抛开精度(至少暂时把精度降到可能忍受的最低限度),需要解决的问题有:1,小体积,低重量,低噪声,高效率,长寿命的压力源(液压泵);2,结构简单,体积小巧,可靠灵活的液压动作装置;3,
低成本
,高可靠性(精度要求一般
我在电路边,捡到一分钱
量子隧道
10年2个月前
回复于
电子技术
内容:完全可以通过精心的设计,在不降低品质的情况下达到使用要求,同时降
低成本
。
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