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探测
器——中子杯。
各位大佬请教个电路问题
氦
3年5个月前
回复于
极客DIY
内容:这个电路图好像就是个玩具级别的简易金属
探测
器之前看到的类似的图,发上来对比一下
回 10楼(sumperqq) 的帖子
chaily94520
11年5个月前
回复于
电子技术
内容:交变磁场就发出的是电磁波,但不是用霍尔元件来检测,是要用对应频率的接收
探测
器,简单来说,就是至少需要谐振线圈。
回 楼主(sumperqq) 的帖子
chaily94520
11年5个月前
回复于
电子技术
内容:要
探测
先搞清楚使用的是哪类,然后做个同频率的接收器就可以了,因为13.56MHz的和915MHz的读卡器(楼主说的阅读器,超高频的还称为读头或RFID天线)都在工作的时候一直发出信号的,尤其是915MHz,的,在很远的地方都可以用对应频率的接收器
探测
到。
进口微型X光管一堆,280元一个。
adj1202
8年3个月前
回复于
跳蚤市场
内容:引用 虎哥:这个建议两个一套搞,
探测
器比管子金贵…正在考虑两个一套,我在上网查参数,谢谢!
想DIY一套可靠性高的 易制作的防盗感应报警,请大家多多指教
kk_kid
9年4个月前
回复于
极客DIY
内容:直接装幕帘
探测
器。。。
回 12楼(sumperqq) 的帖子
chaily94520
11年5个月前
回复于
电子技术
内容:有些超外差的还不一定有线圈,但灵敏度不是很高,靠近才能
探测
到。
回 3楼(chaily94520) 的帖子
sumperqq
11年5个月前
回复于
电子技术
内容:我在想用霍尔元件
探测
磁场的可能性,因为我不需要匹配连接。
贴70年代的防雹火箭
bg9acv
16年3个月前
回复于
喷气推进
内容:例子其实就是AIM-9B,PL2也一样,都是非制冷硫化铅+调幅调制盘,只能
探测
尾喷口。
日本火箭早期发展史(固体火箭)
拔刀斋
14年7个月前
发表于
喷气推进
内容:XXXXXXXXXXXXXX/e/japan_s_history/XXXXXXXXtml从直径1.8cm的小火箭做起(实验测量很精细),到逐渐放大的一系列探空火箭,再到日本第一颗人造卫星,直到发射隼鸟
探测
器用的
[贴图]用电动机(陀螺)可以让火箭稳定飞行吗?
93°
16年10个月前
回复于
喷气推进
内容:如果有兴趣的话可以自制一个机械陀螺仪,使用霍尔元件
探测
转子的位置。
生活中的核辐射及其监测--公众指南
虎哥
6个月28天前
发表于
核技术与核仪器
严肃内容: 专业科普
内容:(2)半导体
探测
器生活中常见的第二类辐射
探测
器,是利用半导体受辐射后产生微弱放电的原理制成的半导体
探测
器。,(3)闪烁
探测
器生活中常见的第三类辐射
探测
器,是采用光电方法间接测量辐射的闪烁
探测
器。,锦屏地下中微子
探测
工程,最终是一个巨大的闪烁
探测
器。,闪烁
探测
器的主要指标是灵敏度和能量分辨率。,闪烁
探测
器的能量分辨率极限约为3%,更高的分辨率需要特制的半导体
探测
器,例如高纯锗,可达0.1%水平。
烟雾探测器里的Am241对人体有无影响?
挑灯看剑1937
13年1个月前
回复于
化学
内容:烟雾
探测
器里面Am的含量是相当弱的啊,放出来,除非你天天吃饭睡觉都贴身带着他,不然一般是没事的
出激光用光电探头,高压电源,接口小板
adj1202
8年1个月前
发表于
跳蚤市场
内容:1, 激光用的光电
探测
器探头, 具体参数不详,不知道状况, 研究价100元,不邮2,拆机进口4KV高压电源,上面全部是发烧级元件,看上去像是军工级别的, 见图,不知道状况,没有通电试过, 配件价,研究价
RD-1212 BT 内部简图
hamho
2年3个月前
发表于
核技术与核仪器
拆机鉴赏
内容:开了振动后如果不设定“本底”值就
探测
到一次振动一下。
磁场和太阳光能量的“拉锯战”使木星环变形
theo
15年1个月前
发表于
物理
内容:1979年,美国的两艘“航行者”
探测
器飞抵木星,借助太阳从背后发出的光线,天文学家首次发现了木星环。,作为NASA的卡西尼号
探测
器科学团队中的一员,康奈尔大学的天文学家Joseph Burns说:“科学家终于搞清了木星环的奥秘,这一发现具有重要的意义。”,卡西尼号
探测
器如今正在围绕土星运转,Burns希望,它能够在土星环中发现类似的——也许很细微的——特征。
美军的近炸引信,现在有图纸吗
航模发烧友
8年3个月前
回复于
电子技术
内容:给感觉上象金属
探测
器一样的工作模式,一个线圈发出信号,有金属在附近后另一个线圈耦合电流到一定值导通
拆解identifinder NGH
普适常数
1年10个月前
发表于
核技术与核仪器
拆机鉴赏
内容:3管pmt和闪烁体是一体封装的,貌似与HDS-100是同一厂家生产的细看He-3管,底下还藏着一个LND的小盖格管,应该是扩展量程用的He-3管整体长度约为6cm,可以说是十分小了由于没有慢化体,所以
探测
效率一般
激光灭蚊器的设想
phpskycn
15年4个月前
回复于
强激光
内容:纯粹是YY以我们的能力搞不出来滴首先,你要某些设备
探测
到蚊子的位置(x.y.z),或者用热成像再分析监控屏幕,接着要转动发射器,再开火要求速度快,还要打得准没六位数的经费和几个研究生很难做到还有,万一打到房间内装有不
KC的伦琴射线发生器到货了
虎哥
13年8个月前
回复于
高电压技术
内容:至于山寨CT的事情,等解决了
探测
器以后再说吧。。
[原创]挑战技术极限——微型制导火箭DIY
kknd
15年4个月前
回复于
喷气推进
内容:LS是对的...动力系卡在燃料选择和药柱结构上了...我现在开始做
探测
和伺服控制
拆两台【自动天调】(13.56MHz等离子弧加热阻抗匹配网络)
RodTech
10年1个月前
发表于
无线电
内容:真空继电器,用于带载切断射频高压 相位、功率
探测
部分 电机驱动部分,使用vishay spectrol精密继电器,在伺服系统中非常常见的高端货。
[原创]边干边写之——用STC51控制TFT(有图有视频)。。。
kknd
12年0个月前
回复于
电子技术
内容:可是距离太短,2.5米以外就
探测
不到了。。。
通过检测手机来判断人流量的方法探讨
9zhmke
4年0个月前
回复于
极客DIY
内容:谢谢,金属
探测
仪貌似太近、容易受到干扰的因素太多,从这个角度来说倒还不如检测对应频率信号的强度了
碘化钠闪烁体γ能谱仪的仿制
RodTech
4年10个月前
回复于
核技术与核仪器
内容:就算是高纯锗
探测
器用12bit都绰绰有余。
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