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磁性开关AL-09R，AL-09N/P是用来检测气缸活塞位置的、即检测活塞运动行程的，它可以分为接点型和无接点型两种。

1：无接点型NPN

2：无接点型PNP

3：无接点抗磁型。

AL-09N/P磁性开关AL-09R

磁性开关意思是通过磁铁来感应的，这个磁是磁铁，磁铁也有好几种，市场上面常用的磁铁有橡胶磁、永磁铁氧体、烧结钕铁硼等。开关是干簧管了。干簧管是干式舌簧管的简称，是一种有触点的无源电子开关元件，有结构简单，体积小便于控制等点。

供应系列型号产品可以磁性开关：

感磁传感器：AL-01R,AL-01RD,AL-01N,AL-01P;

AL-02R,AL-02RD,AL-02N,AL-02P;AL-03R,AL-03RD,AL-03N,AL-03P;AL-04R,AL-04RD,AL-04N,AL-04P;AL-05R,AL-05RD,

AL-05N,AL-05P;AL-06R,AL-06RD,AL-06N,AL-06P;AL-07R,AL-07RD,AL-07N,AL-07P;

AL-08R,AL-08RD,AL-08N,AL-08P;AL-09R,AL-09RD,AL-09N,AL-09P;AL-10R,AL-10RD,AL-10N,AL-10P;AL-11R,AL-11RD,

AL-11N,AL-11P;AL-12R,AL-12RD,AL-12N,AL-12P;AL-13R,AL-13RD,AL-13N,AL-13P;AL-14R,AL-04RD,AL-14N,AL-14P;

AL-15R,AL-15RD,AL-15N,AL-15P;AL-16R,AL-16RD,AL-16N,AL-16P;AL-17R,AL-17RD,AL-17N,AL-17P;AL-18R,AL-18RD,

AL-18N,AL-18P;AL-19R,AL-19RD,AL-19N,AL-19P;AL-20R,AL-20RD,AL-20N,AL-20P;AL-21R,AL-21RD,AL-21N,AL-21P;

AL-22R,AL-22RD,AL-22N,AL-22P;AL-23R,AL-23RD,AL-23N,AL-23P;AL-24R,AL-24RD,AL-24N,AL-24P;AL-25R,AL-25RD,

AL-25N,AL-AL-26R,AL-26RD,AL-26N,AL-26P;AL-30R,AL-30RD,AL-30N,AL-30P;AL-31R,AL-31RD,AL-31N,AL-31P;

AL-32R,AL-32RD,AL-32N,AL-32P;AL-33R,AL-33RD,AL-33N,AL-33P;AL-34R,AL-34RD,AL-34N,AL-34P;

AL-35R,AL-35RD,AL-35N,AL-35P;AL-36R,AL-36RD,AL-36N,AL-36P;AL-37R,AL-37RD,AL-37N,AL-37P;

AL-38R,AL-38RD,AL-38N,AL-38P;AL-39R,AL-39RD,AL-39N,AL-39P;AL-40R,AL-40RD,AL-40N,AL-40P;

AL-41R,AL-41RD,AL-41N,AL-41P;AL-42R,AL-42RD,AL-42N,AL-42P;AL-43R,AL-43RD,AL-43N,AL-43P;

AL-44R,AL-44RD,AL-44N,AL-44P;AL-45R,AL-45RD,AL-45N,AL-45P;AL-46R,AL-46RD,AL-46N,AL-46P;

AL-47R,AL-47RD,AL-47N,AL-47P;AL-48R,AL-48RD,AL-48N,AL-48P;AL-50R,AL-50RD,AL-50N,AL-50P;

AL-51R,AL-51RD,AL-51N,AL-51P;AL-70R,AL-70RD,AL-70N,AL-70P;AL-71R,AL-71RD,AL-71N,AL-71P;

AL-72R,AL-72RD,AL-72N,AL-72P;

AL-09N/P磁性开关AL-09R

1、磁性开关中的干簧管又叫磁控管是利用磁场信号来控制的一种开关元件，当无磁时电路断开，能够用来检测机械运动或电路的状态。磁性开关不处在工作状态时，玻璃管中的两个簧片是不接触的。如果有磁性物质接近玻璃管时，在磁场的作用下，两个簧片会被磁化而相互吸合在一起，从而使电路接通。当磁性物质消失后，没有外磁力的影响，两个簧片又会因为自身所具有的弹性而分开，断开电路。

2、有一种磁性开关是在密闭的塑料管或金属内设置多点或一点的磁簧开关，整个容器中空，内部装有环形磁铁的浮球，磁簧开关和浮球被固定环控制在相关位置上，浮球能在一定范围内浮动。开关的开与关的动作由浮球内的磁铁去吸引磁簧开关的接点来产生。

3、还有一种磁性开关就是常说的近开关，又叫门磁开关或感应开关。它有标准尺寸塑胶外壳将干簧管灌封在黑色外壳里面，导线引出来另一半带有磁铁的塑料外壳固定在另一端当有磁性物质接近带有导线的开关距离为10mm左右时，开关会发出开关信号。