概括
这项研究引入了一种用于光纤传感器的新型 chirped Fabry-Perot 干扰仪. 它克服了分辨率和动态范围之间的权衡,允许同时进行高精度和广泛范围的测量.
科学领域:
- 光电学是指光电子产品.
- 光纤传感传感器是指光纤传感器.
- 干涉测量是干涉测量的方法.
背景情况:
- 传统的光纤传感器在同时实现高测量分辨率和广泛的动态范围方面存在局限性.
- 这种相互限制阻碍了各种传感应用中的性能.
研究的目的:
- 为了提出和演示一款新的纤维杂的法布里-佩罗干扰仪.
- 解决光纤传感中分辨率和动态范围之间的内在冲突.
主要方法:
- 通过使用两个相反的刻字的 Fiber Bragg Gratings 构建了一个在纤维中的 Fabry-Perot 干扰仪.
- 在不同的反射波长中设计了一种逐渐变化的腔长.
- 对得出的干扰频谱进行了分析,以查找功率图 (FOM) 和自由频谱范围 (FSR).
主要成果:
- 的法布里-佩罗干扰仪在长波长区域实现了高FOM,在短波长区域实现了大FSR.
- 证明了同时具有高分辨率和大动态范围的测量能力.
- 实验性温度测试验证了拟议的传感器的性能.
结论:
- 拟议的Fabry-Perot干扰仪有效地克服了光纤传感中的分辨率-动态范围权衡.
- 这项技术具有生物医学应用的潜力,包括内体体温监测.
- 底层概念为要求高分辨率和广动态范围的各种传感场景提供了一个多功能平台.
相关概念视频
Thermosensation
Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
Equipments Used to Measure Body Temperature
Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
Temperature Measurement Sites
A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
Assessing Body Temperature - Tympanic membrane
Assessing tympanic membrane temperature involves using a tympanic membrane thermometer (TMT). Here is a step-by-step guide:
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
Assessing Body Temperature - Temporal Artery
Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's forehead...
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's forehead...


