Final answer:
A hydraulic system calculator serves the function of pressure control by using Pascal's Principle to ensure that pressure changes are accurately managed across the system.
Step-by-step explanation:
The function served by a hydraulic system calculator is c. Pressure control. A hydraulic system is essentially an enclosed fluid system used to exert forces. According to Pascal's Principle, a change in pressure applied to an enclosed fluid is transmitted undiminished to all portions of the fluid and to the walls of its container. This principle is crucial for hydraulic systems, such as power brakes, where it enables the application of a small force in one area to generate a much larger force in another area. The calculator can take various input parameters to help determine the necessary pressure and force required in different parts of the hydraulic system.
For example, to lock a car's brakes, a slight pressure applied by the driver's foot is immensely increased by the hydraulic system to clamp the brake pads securely against the wheel rotors. This phenomenon is a direct application of Pascal's Principle, and the hydraulic system calculator assists in managing and taking precise control of these pressure changes.