Case Study

The Challenge

Decades ago, Lau provided a mechanical circular slide rule calculator to help engineers and customers in calculating fan law properties to determine conditions (E.g. Air Flow, Pressure, Speed, and Power) for their fan applications. They decided it was time to develop a mobile version of the calculator so anyone could perform the calculations using their smartphones. Lau desired an app that provided a throwback look and feel like the old circular calculator so it felt similar using the original mechanical device.

The Solution

PhaseAlpha developed a mobile version of the calculator that uses circular dials that users can slide to input their desired conditions and calculate the resulting conditions needed for their fan application. The mobile version provides both textbox and slide input so the user can enter numbers either way. The results of the calculations can be shared via email or text message directly from the smartphone. In addition to the mobile version, PhaseAlpha provided a web-based version of the calculator Lau uses on their website.

Technologies Used

• Hybrid iOS and Android Mobile Apps
• Android Cordova 4.1.1
• iOS Cordova 3.8.0
• JQuery Mobile 1.4.5
• D3 DOM Framework
• HTML5 / CSS3
• JavaScript