Entrada de Pandipedia
What light wavelength range do most SpO2 sensors utilize?
Most pulse oximeters utilize two distinct light wavelengths: a red light at approximately 660 nm and a near-infrared light at approximately 940 nm [1][2][3]. These two specific wavelengths are chosen because oxygenated hemoglobin and deoxygenated hemoglobin absorb red and infrared light differently [4], and the pair effectively straddles the hemoglobin isosbestic point near 810 nm [5]. This dual-wavelength setup allows the device to compute arterial oxygen saturation through a ratio of ratios [6].
Would you also like to know why pulse oximeters use two wavelengths instead of just one?Respuesta completa. Hay una opción de seguimiento disponible.
Lo sentimos, Pandi no pudo encontrar una respuesta.
Veamos alternativas:
- Modifica la consulta.
- Inicia un nuevo hilo.
- Eliminar fuentes (si se han agregado manualmente).