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I don't have the answer, but congratulations on the 14 pounds!!! WOO HOO!!!! YAYYY YOU!!!!
Yes, Neil, I can't answer your question either but Congratulations.
I think you'll find that the "belty thing" uses Bluetooth or some other short-range/low-power radio communication (much like wireless mice and keyboards) to relay your pulse to the treadmill.The second consideration then is how the "belty thing" picks up your heartbeat in the first place. I would guess it's probably detecting the electrical impulse in your chest...Q) If you try wearing a thin polythene food-bag between your skin and the belty-thing (at least over the suspicious looking pads embedded in the strap to the sides of the central bit) does this stop it detecting your heartrate?Q) If you held those same pads firmly one in each hand (rather than wearing it on the chest), does it detect again??techmind is a natural-born reenigne esrever (!)
I have never seen one of those pads before. Good job Neil.
YAYYYYYYYYYYYY! Your doing so good! Congratulations.. Young man!
The belt thing is just a microphone with a set of audio filters and an amplifier. They communicate via a short range wireless system as previously suggested - may be a custom system rather than bluetooth though. You can get quite sophisticated electro cardiograph systems that you stick on your chest but these are generally used only if a heart problem is suspected. Some of these are for ambulatory use and communicate data by wireless for recording over an extended period. Need to shave hairs off and make good electrical contacts for these so may be tricky on a sheep. There are other sorts of pulse measuring stuff that can be used during exercise. These ones often just fit around a finger and usually detect changes in blood volume using an optical system (infra red or sometimes visible light) or sometimes physical volumetric changes. Sheep have not got fingers so there may be need to find another appendage.Again there are more sophisticated medical systems that look at blood flow using ultrasound by measuring the doppler effect on the reflected sound. I think they all have their uses in specific circumstances but can't help but think there is a lot of Patent avoidance going on.
Quote from: graham.d on 13/06/2008 13:41:22The belt thing is just a microphone with a set of audio filters and an amplifier. They communicate via a short range wireless system as previously suggested - may be a custom system rather than bluetooth though. You can get quite sophisticated electro cardiograph systems that you stick on your chest but these are generally used only if a heart problem is suspected. Some of these are for ambulatory use and communicate data by wireless for recording over an extended period. Need to shave hairs off and make good electrical contacts for these so may be tricky on a sheep. There are other sorts of pulse measuring stuff that can be used during exercise. These ones often just fit around a finger and usually detect changes in blood volume using an optical system (infra red or sometimes visible light) or sometimes physical volumetric changes. Sheep have not got fingers so there may be need to find another appendage.Again there are more sophisticated medical systems that look at blood flow using ultrasound by measuring the doppler effect on the reflected sound. I think they all have their uses in specific circumstances but can't help but think there is a lot of Patent avoidance going on.THANK YOU graham.dBrilliant post for which I thank ewe very much indeed !Yep, had a cardiovascular ECG recently and my chest looks like a patch work quilt where nursey had to shave me ....Like the sound of the finger one.....I've had the oxygen version on the end of my digit a few times !! []Cheers and ta
Quote from: Karen W. on 12/06/2008 14:12:01YAYYYYYYYYYYYY! Your doing so good! Congratulations.. Young man!LOL..Thank Ewe Kareny Mam........Young Lady !!