摘要:
An optical measurement device and method of use provides non-invasive physiological measurements from a predetermined location on a body part of a user. The optical measurement device provides an illumination and detection assembly configured to generate and detect light of a predetermined wavelength range in the form of a photoplethysmography (PPG) signal, as well as a pressure detection assembly configured to detect an amount of pressure applied to the measurement device by the user being measured. A feedback unit, such as a portable display device, provides the user real-time feedback of the detected PPG signal and level of applied pressure so that the user may adjust the amount of applied pressure to improve the quality of the detected PPG signal.
摘要:
An optical measurement device and method of use provides non-invasive physiological measurements from a predetermined location on a body part of a user. The optical measurement device provides an illumination and detection assembly configured to generate and detect light of a predetermined wavelength range in the form of a photoplethysmography (PPG) signal, as well as a pressure detection assembly configured to detect an amount of pressure applied to the measurement device by the user being measured. A feedback unit, such as a portable display device, provides the user real-time feedback of the detected PPG signal and level of applied pressure so that the user may adjust the amount of applied pressure to improve the quality of the detected PPG signal.
摘要:
A method of measuring an artefact removed photoplethysmographic (PPG) signal and a measurement system for measuring an artefact removed photoplethysmographic (PPG) signal are provided. The method comprises obtaining a first set of PPG signals from a plurality of detectors at respective measurement sites using a first illumination; obtaining a second set of PPG signals from the plurality of detectors using a second illumination; obtaining at least two pairs of PPG signals, each pair comprising one PPG signal from the first set and one PPG signal from the second set, and for each pair, computing an artefact reference signal to obtain a candidate PPG signal; and choosing one of the candidate PPG signals as the artefact removed PPG signal.
摘要:
A method of measuring an artifact removed photoplethysmographic (PPG) signal and a measurement system for measuring an artifact removed photoplethysmographic (PPG) signal are provided. The method comprises obtaining a first set of PPG signals from a plurality of detectors at respective measurement sites using a first illumination; obtaining a second set of PPG signals from the plurality of detectors using a second illumination; obtaining at least two pairs of PPG signals, each pair comprising one PPG signal from the first set and one PPG signal from the second set, and for each pair, computing an artifact reference signal to obtain a candidate PPG signal; and choosing one of the candidate PPG signals as the artifact removed PPG signal.