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Monitoring long-term uterine contractions

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4 Author(s)

The proposed system for long-term uterine contraction monitoring includes a pressure sensor and a portable monitor. The pressure sensor converts uterine activities into frequency variations from 1 to 2 MHz. The portable monitor is a microcontroller-based embedded system. We chose the 89c52 microcontroller because of its intelligence and functionality. A CMOS counter serves as a frequency down-converter for scaling down the frequency variation from 50 to 100 kHz

Published in:

Instrumentation & Measurement Magazine, IEEE  (Volume:5 ,  Issue: 2 )