Search results for "pulsa amplitūda"

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Pulsa viļņa izplatīšanas ātruma noteikšana ar bezkontakta fotopletizmogrāfijas metodi

2015

Darbā pētīta bezkontaktu fotopletizmogrāfijas (bPPG) metode ādas asinsrites attālinātai mērīšanai. Parādīta iespēja iegūt bPPG signāla izmaiņas no dažādām plaukstas vietām ārējo stimulu (aukstuma/siltuma) ietekmē. Izstrādāts bPPG analīzes algoritms un datorprogramma, ar kuras palīdzību no 2 interešu zonām var noteikt asins apjoma pulsāciju signālus, no kuriem tiek aprēķināti asinsrites hemodinamiskie parametri: pulsa viļņa ātrums,pulsa frekvence, pulsa amplitūda un fāžu nobīde starp signāliem 2 ādas zonās. Pētīta korelācija starp hemodinamiskajiem parametriem, kas mainās ādas sildīšanas ietekmē.

Fizikafotopletizmogrāfijapulsa amplitūdapulsa viļņa ātrumsplaukstas apasiņošanasbezkontakta fotopletizmogrāfija

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