How a Sensor Actually Works! Every Mechanical Engineering Must Know
In this video, we will understand "How sensors actually work" in industrial automation.
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Not just the logic, but the complete working- sensing element, transduction, signal conditioning, analog vs digital signals, PNP/NPN output, and how the PLC finally reads the sensor data.
If you’re a mechanical design engineer working on automatic machines, assembly lines, SPM, robotics or process machines, then understanding sensors is not optional, it’s part of your job.
In this lesson of Sensor and their selections, we covered flowing
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Time stamp
00:00 Important of Sensors selection
09:26 What we are going to learn
11:45 What is a Sensor
14:10 All transducers are not sensors
15:18 How any sensors work
16:45 Loadcell sensor working
18:08 Photoelectric sensor working
22:34 Signal conditioning unit of sensor
27:14 Analog output sensors
27:44 Sensor’s voltage output vs Current output
32:24 Analogue output sensor working- Loadcell
37:14 Digital Signal output sensors
39:42 Digital output sensor working- Photoelectric sensor
44:04 How to wire a sensor
46:52 PNP Digital sensor working
49:09 NPN Digital sensor working
52:52 PNP VS NPN selection
54:37 IO Link sensors- Smart sensor
By the end of this series, you’ll be able to select the exact sensor and model required for your machine design work, based on working principle, accuracy, least count, environment, electrical compatibility, and pricing
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