{"product_id":"npn-proximity-sensor","title":"NPN Proximity Sensor","description":"\u003cp\u003eAn \u003cstrong\u003eNPN Proximity Sensor\u003c\/strong\u003e is a type of proximity sensor that operates based on the principle of detecting the presence of objects without any physical contact. It works by sensing changes in the electromagnetic field or by detecting other environmental changes such as capacitance or inductance. The sensor can detect objects made of various materials, including metal, plastic, or liquids, depending on the specific type.\u003c\/p\u003e\n\u003ch3\u003eKey Features of an NPN Proximity Sensor:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e: The \"NPN\" designation refers to the type of transistor output used by the sensor. When the sensor detects an object, it completes a circuit by sinking current to ground, resulting in a \u003cstrong\u003elow (0V) output\u003c\/strong\u003e signal. In contrast, when no object is detected, the output is \u003cstrong\u003ehigh\u003c\/strong\u003e (close to the supply voltage).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThree-Wire Configuration\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrown Wire\u003c\/strong\u003e (Positive Supply, often +12V or +24V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlue Wire\u003c\/strong\u003e (Negative\/Ground)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Wire\u003c\/strong\u003e (Signal Output – when activated, this connects to ground)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSensing Range\u003c\/strong\u003e: NPN proximity sensors have a specific range within which they can detect objects. This range varies depending on the sensor model, typically from a few millimeters to several centimeters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTypes of Detection\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInductive Proximity Sensors\u003c\/strong\u003e: These are typically used for detecting metal objects. They generate a magnetic field and detect changes when a metal object enters that field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacitive Proximity Sensors\u003c\/strong\u003e: These can detect both metallic and non-metallic objects by sensing changes in capacitance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAutomation and robotics\u003c\/li\u003e\n\u003cli\u003eObject detection and positioning\u003c\/li\u003e\n\u003cli\u003eSafety interlocks\u003c\/li\u003e\n\u003cli\u003eConveyor systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cp\u003e Usually operates with a DC voltage, commonly in the range of 10V to 30V.\u003c\/p\u003e\n\u003ch3\u003eOperation Example:\u003c\/h3\u003e\n\u003cp\u003eWhen a metal object comes within the sensing range of an \u003cstrong\u003einductive NPN proximity sensor\u003c\/strong\u003e, the sensor detects this and pulls its output to ground (0V), allowing the connected control system to register that an object is present.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackage Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1x NPN Proximity Sensor \u003c\/p\u003e","brand":"Digilog Electronics","offers":[{"title":"Default Title","offer_id":43962563461185,"sku":"b495","price":650.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/2805\/1777\/files\/WhatsApp_Image_2024-10-22_at_12.09.23_PM-removebg-preview_result.jpg?v=1779566407","url":"https:\/\/stem.pk\/products\/npn-proximity-sensor","provider":"stem.pk","version":"1.0","type":"link"}