18 Aug

Sensors are an important part of modern living. As of now, there are a number of electronic devices that are built in with sensors. Mouse computers use optical sensors while smartphones use touch sensors. Essentially, a sensor or electronic sensor is described as a device that designates or gauges something about the environment in which it is operating in. The information the sensor receives is produced mechanically or electrically and conveys the data of the environment through electrical signals. The data can be interpreted by either a human or a machine.

Some examples of sensors include environment ones that detect temperature or humidity as well as biosensors that measure physiological aspects such as core temperature or heart rates. Although most sensors are electronic, some are more minimal, like a glass thermometer which shows visual data. Generally, sensors consist of two types – analog and digital. The former is more detailed than the latter as they are not restricted to a fixed set of values.

Types of sensors

There are various forms of sensors that exist today, especially in a single automobile. Tire pressure sensors tell us if a tire is flat or is in need of more air. Using sound waves, a Tesla, which is a self-driving car, is built with ultrasonic sensors that calculate the distance between the vehicle and other objects in its surroundings.

Besides that, most houses have home security systems that utilize motion sensors to perceive movement from mainly large objects like humans and animals. The most frequently used home surveillance motion sensor is called a Passive Infrared (PIR) system which distinguishes infrared radiation in the environment.

Meanwhile, medical devices also use sensor technology. Prosthetic technology uses input sensors such as myo-electrodes. They sense electrical signals from a patient’s muscle contractions. Heartbeat sensors also observe and identify patients’ pulse while temperature is gauged by thermometers.

Other types of sensors that can be found today include:

Light Sensor

Also known as a light detector, it captures the amount of light incident that occurs. Different types of light detectors are used to perceive various types of light such as ultraviolet, infrared, and many more. This process occurs by converting light energy to electric energy.

Color Sensor

As suggested by the name, this sensor detects color. It utilizes an exterior way of producing light and examines an object’s reflected light to decide its color. Color sensors provide a correct color of an object. There are a number of ways color sensors operate such as object sorting by colors, quality control systems, and printer color enhancement.

Smoke Sensor

Commonly placed in public areas, a smoke detector is described as a smoke-sensing device that signals fire. It is very useful and as of now, it is sold at cheap prices because of its increase in usage and decrease in manufacturing costs. Essentially, there are two types of smoke sensors – optical and ionization. The former contains a light source such as LED as well as a light detector like photocell while the latter is made up of two electrodes and an ionization compartment filled with ions.

Ultrasonic Sensor

This type of sensor is a non-contact device that is used to calculate the distance and velocity of a moving object. It operates with a frequency higher than that of the human hearing spectrum, depending on the characteristics of the sound waves.

OMRON Sensors

The components of OMRON sensors perceive, calculate, examine, and administer numerous changes that happen on production sites. The changes could occur in position, length, height, displacement, and appearance. OMRON sensors also help to expect and avoid unwanted future events.

The types of sensors OMRON possesses include proximity sensors, vision sensors, fiber sensors, rotary sensors, and so much more. They are very useful in humans’ everyday lives.

The future of sensor technology

As technology evolves, sensor utilization will keep growing into every aspect of our lives. Engineers and scientists worldwide will employ sensors to improve transportation systems, medical practise, nanotechnology, mobile devices, and even artificial intelligence (AI). It is only a matter of time before the world as we know it will be dominated by advanced technology.