Sensors are sophisticated devices that are frequently used to detect and respond to electrical or optical signals. A Sensor converts the physical parameter (for example: temperature, blood pressure, humidity, speed, etc.) into a signal which can be measured electrically. Let’s explain the example of temperature. The mercury in the glass thermometer expands and contracts the liquid to convert the measured temperature which can be read by a viewer on the calibrated glass tube.
Fig. 1: An Image Of Commonly Used Sensors
Type2: IR Sensors
Fig. 3: An Image Of typical IR Sensors
Type3: UV Sensors
Type4: Touch Sensor
Type5: Proximity Sensor
The minimum sensing distance and maximum sensing distance can be adjusted. This is called the limit zone.
Advanced Sensor Technology