Method of testing switch design to quantify feel

摘要

A method of testing a switch looks at the second derivative of the resistance force to movement. The second derivative is most indicative of the feel the operator will experience when utilizing the switch. It is desirable to keep the second derivative to a minimum for the switch at locations other than end of travel or detent positions. By investigating the second derivative, one is provided with feedback of areas on the switch that might require further investigation or re-evaluation.