'Spoke Tension Gauge' iPhone app
04-18-13, 02:38 PM
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Regarding my Park Tension Meter that didn't agree with the phone app. I have sent it to Park for calibration/repair and if necessary spring replacement, ALL FOR FREE. Neat, huh? They aren't charging for this service "at this time." When I get it back, I will compare it again to the phone app. If there is still disagreement, I will favor the Park result. Having said that, I think I will try to set up a calibration table (much like the one that comes with the Park tool) to convert the phone app readings into Park tool results (in kgf, not Park meter readings). If you believe the Park tool, especially after calibration, that would be a great way to fix any problems with the phone app and make it fully usable.
Let's see what Coach has to say.
Robert
Let's see what Coach has to say.
Robert
04-18-13, 08:25 PM
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Not sure what you mean. I wouldn't imagine the phone app assigns a tension to the tone on a theoretical basis, but rather by a calibration data set that matches real mechanical measurements to spoke tones. I just don't know why the calibration data used by the phone app doesn't match my tension meter results.
10-06-15, 03:45 PM
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I'd be interested in hearing about it, too, but for $5' I might just do it. I've got a wheel with one of those odd spokes that won't stay tensioned. I'd love to see how far out it is.
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10-06-15, 03:51 PM
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10-06-15, 07:26 PM
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SuperGimp
10-06-15, 07:31 PM
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Just weird results. Not consistent. Very dependent upon room noise. Also too much affected by the spokes touching in a cross pattern. My TM-1 was recently calibrated by Park, but there was no relationship between values from the TM-1 and the app. Nice idea, but IMO it just doesn't work very well. About like listening to the tones yourself.
10-06-15, 07:58 PM
#35
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We'll download this at work today and I'll let you know how it compares to our standard tension meters. We built a tension meter calibration machine in house so we use that a couple times per day to make sure the tension meters are staying calibrated and not drifting. It'll be cool to see how it compares with that.
10-06-15, 08:37 PM
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10-06-15, 09:31 PM
#37
Señor Blues
I wouldn't suggest it's as accurate as using a tensiometer. But there was a time when those measuring devices did not exist.
10-07-15, 01:44 PM
#38
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I expect a number of peeps will just take their phone to the bike and make assumptions.
07-07-16, 03:10 PM
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Three year thread bump...
I was reminded today and I wanted to note (heheh) that I tried using the Gates belt tension app (free!) to measure other notes, and it works well up into the hundreds of hertz. It should work for this.
I was reminded today and I wanted to note (heheh) that I tried using the Gates belt tension app (free!) to measure other notes, and it works well up into the hundreds of hertz. It should work for this.
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07-08-16, 12:35 PM
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I use one of those for tensioning the Gates belt on my tandem. I'll have to play with it now on spokes just to see how even they are.
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