Develop a functional design for a system that measures and displays the speed of a bicycle. Be sure to clearly identify the design levels, function requirements, and theory of operation for each level.
The system must:
• Measure instantaneous velocities between zero and 75 miles per hour with an accuracy of 1 % of full scale.
• Display the velocity digitally and include one digit beyond the decimal point.
• Operate with bicycle tires that have 19-, 24-, 26-, and 27-inch diameters.