Fiber optic power-feed system for biomedical application

用于生物医学应用的光纤供电系统

• 批准号: 02452178
• 负责人: TOGAWA Tatsuo
• 金额: $ 3.52万
• 依托单位: Institute for Medical and Dental Engineering, Tokyo Medical and Dental University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-02452178/
• 关键词: Optical power-feed; Laser diode; Fiber optic communication; Solar cell; Temperature measurement; Opto-electric conversion; 半導体レ-ザ; 光ファイバ,; 太陽電池,; 半導体レ-ザ,; パワ-フィ-ド

An attempt was made to develop an optical power-feed system capable of supplying power to sensors and interfacing circuits. Laser light was transmitted to solar cells, where the optical energy was converted into electrical energy. A continuous-wave laser diode (wavelength 813 nm, maximum optical power 800 mW) was used as the light source. A laser diode with graded-index fiber coupling (400 mm core diameter, numerical aperture 0.2) was connected to 8 solar cells assembled in series around the fiber end. The active area of each solar cell was 0.5\0.27 cm. The open-circuit voltage and the short-circuit current were found to be about 4.5 V and about 8.5 mA, respectively, with a laser diode optical power of 650 mW. Upon temperature measurement using this power-feed system, the modulated signal could be transmitted by a light-link diode via a step index fiber. The results indicated that the system can be used as a power supply for conventional sensor elements.

人们试图开发一种能够为传感器和接口电路供电的光学供电系统。激光被传输到太阳能电池，在那里光能被转换成电能。使用连续波激光二极管（波长813 nm，最大光功率800 mW）作为光源。将具有渐变折射率光纤耦合的激光二极管（400 mm芯直径，数值孔径0.2）连接到围绕光纤端部串联组装的8个太阳能电池。每个太阳能电池的有效面积为0.5 × 0.27 cm 2。在激光二极管光功率为650 mW的情况下，开路电压和短路电流分别为约4.5 V和约8.5 mA。在使用该馈电系统进行温度测量时，调制信号可以通过阶跃折射率光纤由光链路二极管传输。结果表明，该系统可以作为传统传感器元件的电源。

项目成果

Tamura,T.,Togawa,T.,Oberg,P.A: "Fiber-optic power-feed system for temperature measurement" Sensors and Actuators. A34. 155-159 (1992)

Tamura,T.、Tokawa,T.、Oberg,P.A：“用于温度测量的光纤供电系统”传感器和执行器。

Tamura,T.,Togawa,T.,and Oberg,P.Ake: "Fiber optic power-feed system in biomedical application" Med.& Biol.Eng.& Comput.29(Suppl). 342 (1991)

Tamura,T.、Tokawa,T. 和 Oberg,P.Ake：“生物医学应用中的光纤供电系统”Med。

Tamura,T.,Togawa,T.,and Oberg,P.Ake: "Fiber optic power-feed system" Transducers '91. 828-831 (1991)

Tamura,T.、Tokawa,T. 和 Oberg,P.Ake：“光纤供电系统”Transducers 91。

Tamura,T.,Shamsuddin,AKM Kawarada,A.,Togawa,T.,and Oberg,P.A: "Transcutaneous optical power-deed system for implantable sensors" Proc.9th Nordic Meeting on Medical and Biological Engineeirng.

Tamura,T.、Shamsuddin、AKM Kawarada,A.、Tokawa,T. 和 Oberg,P.A：“用于植入式传感器的经皮光学功率作用系统”Proc.9th 北欧医学和生物工程会议。

Tamura,T.,Togawa,T.,and P.Ake Oberg: "Fiber optic power feed system in biomedical application -preliminary stydy-" Proceedings of the 8th Nordic Meeting on Medical and Biological Engineering. A36 (1990)

Tamura,T.、Tokawa,T. 和 P.Ake Oberg：“生物医学应用中的光纤供电系统 - 初步研究 -”第八届北欧医学和生物工程会议论文集。