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In this paper, the authors review the different measurable physiological parameters that can provide an indication of the time of ovulation and hence could be a potential aid to natural birth control (nbc) practitioners. They then proceed to select and evaluate a few physiological parameters that can easily be electronically detected, processed and measured, resulting in technically fasible methods for ovulation detection. Their suggestions include basal body temperature (bbt) measurement with adaptive signal processing for improving reliability; a new differential skin temperature (dst) measurement; and improved viscosity sensors for cervical mucus evaluation. They also comment on the possible future use of chemically sensitive electronic devices (csed) and improved biopotential measurement techniques for ovulation detection. Preliminary experimental results on thedst method are presented, raising the hope that this technique may lead to precise and reliable electronic ovulation detection and may therefore be useful fornbc.

Natural birth control: A brief review and some bioelectronic solutions