Hello Folks,
I am working on a project intended to convert an analog ECG signal to a voltage
proportional the heart rate,
The actual electrodes instrumentation amp is pretty much working fine so no
worries there.
The problem is, and here is where the relationship to time nut comes in.
The signal output from the instrumentation amplifiers will be at a rate of
approx 60 BPM or pulses, up to perhaps 90 BPM.
The purpose of this apparatus is to print a rolling chart on the screen of a
computer of heart BPM and then try different technicues of meditaion and
calming technicues to lower my heart rate for short periods of time.
My first tthought was a frequency to voltage IC like the LM2907 or the 2917 but
I get the impresiion from the data sheets that these chips will not work at
these very low 1 Hz applications,
Then I thought maybe one of the frequecy counters could be configured as a rate
meter and output a proportional voltage I need.
No luck here either.
Te latter components seem tobe somewhat time relatedand that is why I posted
here.\\
Thank you for reading this and for any suggestions you folks might offer.
PaulC
W1VLF
1Hxz
_______________________________________________
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
