Stenow E N, Oberg P A
Department of Biomedical Engineering, Linköping University, Sweden.
IEEE Trans Biomed Eng. 1993 Mar;40(3):284-9. doi: 10.1109/10.216412.
This paper presents the results of comparative testing of a fiber-optic sensor used as an alternative to the mercury strain-gauge in a clinically well-established technique for limb blood flow assessment, venous occlusion plethysmography. In this research the measurement of volume changes following venous occlusion has been performed with a variety of methods including the commonly used mercury strain-gauge. Temperature drift and long-term instability are problems associated with the mercury strain-gauge. In addition, environmental protection authorities are prohibiting the marketing of mercury sensors, beginning in 1993. Evaluation and optimization of the fiber optic microbending sensor is described in detail. Comparison with the mercury strain-gauge sensor is made for in lower limb blood flow measurements.
本文介绍了一种光纤传感器的对比测试结果，该传感器在一种临床成熟的肢体血流评估技术——静脉阻塞体积描记术中，被用作汞应变仪的替代品。在本研究中，采用了多种方法来测量静脉阻塞后的体积变化，包括常用的汞应变仪。温度漂移和长期不稳定性是与汞应变仪相关的问题。此外，从1993年开始，环境保护当局禁止汞传感器的销售。本文详细描述了光纤微弯传感器的评估和优化过程，并将其与汞应变仪传感器进行了下肢血流测量的比较。
