Industrial Sensors and How They Work

In Industrial Sensors and How They Work, you'll learn ...

• How temperature measurement devices work
• How force measuring devices work
• How oxygen measuring devices work
• How Ph and ORP measuring devices work

Overview

Credit: 3 PDH

Length: 30 pages

This course was written with the intention of showing engineers in all disciplines how to think about and apply standard electrical sensors. This is, by no means, a complete list. A task of that magnitude would be almost impossible. I have selected, however, those sensors that I have used the most in my career.

The course starts by covering temperature sensors. This is followed by force measure devices. Also covered are oxygen, PH, ORP, and flow measuring techniques. The course shows that most sensors are either variable voltage or variable resistance devices. Most sensors are non-linear devices. However many of them are linear over a limited range. In any case, modern electronic circuits can linearize many non linear responses. In some devices the non linearity is used to cause a switching action.

This course was designed for engineers of all disciplines. When working with sensors and measuring devices, it is very helpful to have a basic idea of what properties are being changed by the measured parameter. When engineers know what is really happening to the physical world, they can make better decisions about what to specify for specific projects.

There is very little math involved when completing this course. Some algebra understanding is helpful when looking at how variable resistors and voltage sources tell us the temperature of a process or the weight of some product varies.