Basically speaking, flow meters are devices which are used to measure the velocity of a gas or liquid in the given passage. There are many, many types of flow meters, each having their own specific use. Their application too is very diverse, as you will find the use of flow meters in aeronautics, meteorology, engineering and so on. What Do The Flow Meters Actually Do? Well, as mentioned above, the flow meters measure how much gas or liquid has passed through a device by the help of the velocity of the gas/liquid. The flow meters measure the mass and not the volume. The accuracy of the reading and overall results will depend upon the purity of the liquid or gas, as well as whether the flow meters and its parts were clean and free of any obstacles.
There are a great variety of these devices and each one of them has typical applications. Some are used to measure air, some are used to measure fuel, and some are used to measure oil and so on. For each type of liquid and or gas, the specification, the use and the application of the device will differ. Thankfully, the variety and the science that backs the concept gives very accurate answers which helps in a number of automotive and mechanical applications. It is lovely how far science has progressed and developed this simple device of flow meter which as a matter of fact, was used even in the Roman Empire.
This fact shows first of all, that man's interests have not changed too much in the last so many decades that passed; it also shows that the ancient civilizations were much more knowledgeable than we give them credit for. The fact that the concept of the flow meters was found applied so much far in the past, forces the modern man to reconsider their knowledge and beliefs about the ancient civilizations and their understanding of science and how it can be applied for the promotion of a better and more comfortable life. There are a great deal of developments in the field of the flow meters today, as their applications too have been diversified according to the development of technology and advancement of science.
However, the basic fact remains that the concept is as old as the Romans, and may be even before that. This is something that gives the modern man a wake-up call regarding the science of the ancient civilization, which we have so far, ignored as superstitions and pagan rites and beliefs.
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