We don’t fully comprehend how much technology is around us and how much it is already involved in our lives. Everywhere we turn, most things we have or see are almost entirely operated by some kind of technology. It has its benefits and drawbacks.
The simplest things as a machine making us coffee in the morning or detecting a fire in a room is something that people through advanced technology are used to having. And most things that are operated that way are through sensors.
Maybe you’ve never thought of it before, or it is something that you just don’t really care about. But, each device, especially nowadays, is somehow functioning with the help of sensors.
There is no surprise there since we all like to find an easier way to live our lives. And when we have someone or something to do it for us, we simply accept it.
Before we dive in deeper into how exactly sensors do what they do, let’s take a look at what they actually are.
What is a sensor?
There can be numerous ways to explain what a sensor is. Still, the most understandable way for everyone to actually get it is if we say that a sensor is a device that puts out a signal with the intention of detecting some kind of change in the environment. When it gets a piece of information, it is obligated to send that information to another device.
After the information has been sent out and received by the other device, that same device is responsible for acting out as a result of it.
You’d be surprised to learn how many things have sensors in them. We have them in our homes, offices, vehicles.
The elevator button has a sensor inside, which sends out a piece of information, and the elevator starts moving to your wanted floor. Your garage door or any door that needs some kind of electronic password or key to open has a sensor in it.
We always think about what it is that operates all of these things and how do they function. And the answer is sensors.
Types of sensors
Even though a sensor can do many things that we are unaware of, we need to focus on the types of sensors there are. No one wants to get a device that is supposed to do something else than we have imagined.
Each type is used for different things such as determining temperature, distance, resistance, etc… Many of them can detect what kind of pressure an object is making or what its weight is.
Others can capture sound waves and where they come from. Some sensors can detect where an object is and how far it is from the sensor’s location.
Whatever you may have in your mind, someone has already made a sensor for it. That is why they are so practical to use.
Now in this article, we are going to focus a bit more on ranging sensors and what they do.