厂家直销 接近开关 LJ12A3-4-Z/BY 直流三线PNP常开DC6-36V m12
Link to the original- 100 — 1999 шт 5000$ per piece.
- 2000 — 50119 шт 4000$ per piece.
- 50120+ шт 3000$ per piece.
Inspection + photo report for $1.5.
We check the goods and take a photo report so you can make sure you get the right product without faults or damage
Delivery from China to Ukraine, Uzbekistan, European and African countries
Payable upon arrival at the warehouse in China
Returns are only possible while the item is in our warehouse in China. Once the goods have been dispatched from China, they cannot be returned
Photo and product description
电感式接近开关工作原理:
电感式接近开关又称电感式接近传感器,金属感应器。开关内部包含高频振荡电路,检波电路,放大电路,解发电路及输出电路组成。当给开关供电后,高频振荡电路中振荡器在开关的检测面产生一个交变电磁场,当有金属接近开关检测面时,金属内部的涡流吸收了振荡器中的交变电磁场的能量,使振荡器减弱或停振。振荡器能量变化的二种状态,经检波电路转换为一个电平信号,通过放大电路将电平信号放大后经触发电路触发输出晶体三极管电路工作,产生一个开关信号。从而检测金属的有无。达到检测金属的目的。