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antenna or coil parts for 5 kHz cardiac strap RECEIVER ideas anyone ?
Hi people
Those cardiac straps transmit by a 5 kHz on/off -modulation magnetic field by means of a 5-7ms burst for each heart beat. They make these things in the millions. The range is about 3 feet. I can easily make a RX coil for this, but as I want to make quite a few, I am hoping someone here can point me to a manufacturer or a source of some device that can take this RF signal, amplify & clean it up, and pump it into a MPU that will be able to calculate all kinds of stuff, like optimal krebs cycle zone. I'll wager someone has made an ASIC that is an antenna, processor etc all in one which is what they put into the watches. |
#2
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Lord Duckfart wrote:
Hi people Those cardiac straps transmit by a 5 kHz on/off -modulation magnetic field by means of a 5-7ms burst for each heart beat. They make these things in the millions. The range is about 3 feet. I can easily make a RX coil for this, but as I want to make quite a few, I am hoping someone here can point me to a manufacturer or a source of some device that can take this RF signal, amplify & clean it up, and pump it into a MPU that will be able to calculate all kinds of stuff, like optimal krebs cycle zone. I'll wager someone has made an ASIC that is an antenna, processor etc all in one which is what they put into the watches. You lose; at that frequency, the antenna must be external. |
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