Transmissive invasive optical fiber is an optical sensing component specially used for real-time detection of liquid absorption rate of medical devices. It directly contacts the liquid medium and uses the principle of light transmission to accurately measure liquid concentration, absorption rate or pollutant content. It is widely used in medical scenarios such as extracorporeal circulation systems, dialysis equipment and drug infusion monitoring.
Working principle:Transmission and Total Reflection of Light: Fiber optic cables utilize the principle of total reflection of light within the fiber to transmit optical signals.
Transmission measurement principle: Light interacts with the measured substance at the measurement point, such as absorption, scattering, or transmission, and then carries the information of the measured substance back to the detector through an optical fiber for separation
Performance characteristics:
1. Wide wavelength range: It can cover the ultraviolet-visible-near infrared bands, and can meet the absorption detection needs of different liquids in different spectral ranges.
2. High measurement sensitivity: By designing a longer optical path, the degree of interaction between light and liquid samples can be improved, thereby improving the sensitivity of measurement, which is suitable for the detection of low absorbance samples.
3. Strong anti-interference ability: The optical fiber itself has good anti-electromagnetic interference performance, can work stably in a complex electromagnetic environment, and ensure the accuracy of the measurement results, especially for the medical environment where medical devices are located.
4. Low insertion loss: The insertion loss of high-quality transmission invasive optical fiber can be as low as 0.2, which can effectively reduce the loss of optical signals during transmission, ensure the intensity of optical signals, and improve detection accuracy.
Application scenarios: Mainly used for the detection of liquid components or concentrations in the medical field, such as blood component analysis, drug concentration monitoring in body fluids, interstitial fluid component detection, etc., which helps doctors understand the physiological state or drug metabolism of patients in real time, and provide a basis for disease diagnosis and treatment.