Pascal's principle is applied in different machines and devices.
The philosopher, mathematician and physicist Blaise Pascal , born on June 19, 1623 in France and died on August 19, 1662 , made important contributions to science . One of its most famous statements is known as Pascal's principle and refers to the fact that the pressure exerted by a fluid that is in equilibrium and cannot be compressed, housed in a container whose walls do not deform, is transmitted with identical intensity in all the points of said fluid and towards any direction.
The application of this law can be observed in various devices that use hydraulic energy . According to what Pascal warned, the water that enters a container with the aforementioned characteristics can be expelled through any hole at the same pressure and speed.
To work with the aforementioned Pascal's Principle, the following formula is used:
p = p_0 + rho g h. In this p is the total pressure at depth; h is the measurement in Pascals; p_0 is the pressure on the free surface of the fluid; rho is the density of the fluid and g is the acceleration of gravity.
Pascal's principle calculator
To apply Pascal's principle, the following formula could be used:
F1/A1 = F2/A2
where F1 and A1 are the force and area on one side of a system, and F2 and A2 are the force and area on the other side of the system.
For example, to calculate the force F2 that will be exerted on the other side of the system, the formula can be rearranged as follows:
F2 = (F1/A1) * A2
So if the values of F1, A1 and A2 are known, F2 could be calculated. Or if you have the values of F2, A1, and A2, you could calculate F1, and so on.
Experiment with our calculator:
How hydraulic presses work
Pascal's principle is the key to the operation of hydraulic presses , a type of machine that is taken as the basis for the creation of brakes, elevators and other devices used in industries.
Specifically, the aforementioned hydraulic press is a very simple cutting machine similar to the famous Archimedes lever.
A hydraulic press is usually made up of a pair of cylinders that are interconnected and filled with oil or water. Two pistons are installed on the sides of these cylinders that remain in contact with the fluid. A certain force is applied to the smaller section piston, generating a pressure that is transmitted to the entire liquid. According to the aforementioned Pascal's law , said pressure will be identical to that exerted by the liquid in the other piston.
Pressure is a key element of Pascal's principle.
Other applications of Pascal's principle
Not only in hydraulic type presses can the aforementioned Pascal's Principle be applied. Specifically, it has many other uses in systems and devices such as the following:
-In the tires of the different existing vehicles, which are inflated with a certain pressure taking into account the argument put forward by the French physicist.
-In the anti-lock braking system of automobiles, in the well-known ABS system. Specifically, in this case, we start from the aforementioned principle at hand to establish a mechanism that prevents the wheels from locking when braking and that prevents the car in question from skidding. If you are committed to the safety of the driver and the rest of the occupants of a vehicle, this mechanism also allows whoever is behind the wheel to have greater and better control of driving.
-In the same way, in refrigerators of any type, Pascal's Principle is also used. Thus, what is achieved is that they perform their function correctly, which is none other than removing heat.