Compact sensor offers contactless measurement of vital signs
Whether in a hospital, a vehicle or a manufacturing facility, monitoring a person's health without touching them or restricting their freedom to move can be useful in numerous situations. However, conventional measurement methods often require electrodes, cables or sensors worn on the body. On the one hand, this compromises comfort; on the other, it poses special hygiene challenges, particularly…
Researchers at the Fraunhofer Institute for Applied Optics and Precision Engineering IOF in Jena have developed a compact sensor, named goVISCAN, that can non-contactively measure vital signs such as heart rate, respiratory rate, and oxygen saturation through optical measurement. This novel sensor significantly reduces limitations found in conventional measurement methods, which often require uncomfortable electrodes, cables, or sensors worn on the body.
The goVISCAN sensor is designed to be discreet and easily integrated into everyday environments, measuring just 10 × 7.5 × 2.5 centimeters in size. Its core technology is a novel multispectral camera consisting of a high-precision arrangement of nine micro-lenses arranged in a monolithic glass piece. Each micro-lens is optimized for a specific wavelength range, allowing the sensor to detect weak fluctuations in skin brightness caused by pulsating blood flow.
The goVISCAN sensor covers a 40-degree field of view and operates at distances ranging from 70 centimeters to 1.3 meters from the person being analyzed.
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