Would it not be great to be able to self assess the condition of your string bed tension?
Welcome to the Racquet Tuning APP enabling you to track tension loss on your cell phone. The application is able to calculate the tension to a high accuracy by using the sound generated by tapping your string, calibrated specifically to your racquet / string bed setup.
To help you with this, we can provide the setup and calibration factors specific to your racquet, string and tension at the time of stringing.
[NOTE: The full RacquetTune App by Laverne Productions is available at a cost for your Apple iPhone or iPad. A free version with less capability is available at Play Store for your Android device.]
(Racquet Man has no affiliation with RacquetTune)
Step-by-Step Instructions for Android Users
Note: Remove any dampeners or other items that would change / impede the sound generated by your racquet string bed.
[NOTE: to edit / delete any information, press and hold on the item until the edit pencil / delete entry icons appear in the top right corner of your screen.]
Once you have downloaded and opened the program:
GO TO RACQUETS and press the + in the top right corner to input your racquet characteristics. Give it a customer and brand / model name for easy tracking and provide the head size and number of main and cross strings.
GO TO STRINGS and press the + in the top right corner. Select generic or generic hybrid string. From the drop down menu select polyester, syn-gut, gut or kevlar. Provide string brand / name and diameter data. The calculated string factor is good as a starting point. It can be edited later by increasing or reducing it to match your freshly strung tension. [Different brands and models of string have different stiffness; hence one common number cannot fit all situations.] Give it a special name / brand identifier. The Hybrid menu is similar and data entry is self-evident.
GO TO SETUP to adjust sound sensitivity and selected max / min tension. I use about 40% and 75 / 25 lbs respectively.
GO TO MEASURE. I have found that a good response is achieved by striking the string bed using a screwdriver handle or the frame from another racquet. Strike the string several times – the program measures the response of the strings over time (not at the exact moment of striking) and averages the response from several strikes. For a freshly strung racquet, If you are not satisfied with the results, adjust the string factor up or down and repeat until the result matches the tension at which the racquet was strung.
Data such as racquet string bed stiffness (N/mm), frequency (Hz) and tension in kg/lbs can be saved and tracked in HISTORY. Details such as date, time, type of racquet / string, whether fresh strung, client name are included.
For more explanation of how the program measures sound and does the calculations, GO TO GUIDE.
A neat quick and simple ability to track tension loss - have fun!
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