|Monitoring the Environment|
Sensors are often used to automatically measure and record changes in conditions, such as:
It can sometimes be too difficult or dangerous for people to take measurements in certain places, so sensors are often used instead. Examples of remote sensing, where the measurements are sent over a long distance to a computer to be studied, include:
The main disadvantage of remote sensing, however, is the initial cost of buying the equipment. For example, whilst a thermometer can be bought for about a pound, the cost of a good quality temperature sensor would likely be a lot more.
Made by Mr S Haughton