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Related Concept Videos

Temperature Measurement Sites01:14

Temperature Measurement Sites

2.2K
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...
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Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

1.2K
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,...
1.2K

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Updated: Sep 16, 2025

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
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High-Precision and Low-Complexity Silicon Waveguide-Integrated Temperature Sensor System.

Zhiming Zhang1, Haole Kong1, Yi Li1

  • 1College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China.

Sensors (Basel, Switzerland)
|July 12, 2025
PubMed
Summary
This summary is machine-generated.

This study presents a novel silicon waveguide temperature sensor offering high sensitivity and low complexity. It achieves precise measurements up to 100°C with a resolution of 2.87 mK using advanced simulation and machine learning.

Keywords:
convolutional neural networksilicon waveguidetemperature sensor

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Area of Science:

  • Photonics and Sensing
  • Integrated Optics
  • Machine Learning Applications

Background:

  • Traditional temperature sensors often face limitations in sensitivity, complexity, or cost.
  • Silicon photonics offers a platform for integrated optical devices with potential for enhanced sensing capabilities.

Purpose of the Study:

  • To develop a high-sensitivity, low-complexity integrated temperature sensor utilizing silicon waveguides.
  • To optimize the sensor design for efficient data collection and precise temperature demodulation.

Main Methods:

  • Finite-difference time-domain (FDTD) simulations for waveguide layout optimization.
  • Implementation of a compressed taper structure for improved speckle data collection.
  • Application of a convolutional neural network (CNN) for nonlinear temperature demodulation.

Main Results:

  • Demonstrated temperature measurement capability within the range of -20 °C to 100 °C.
  • Achieved a best temperature resolution of 0.00287 °C (2.87 mK).
  • Validated measurement resolution and reliability against theoretical values.

Conclusions:

  • The proposed silicon waveguide sensor offers a novel and effective approach for high-resolution temperature sensing.
  • The integration of FDTD simulations and CNN-based demodulation significantly enhances sensor performance and reduces system complexity.
  • This technology holds promise for various applications requiring precise and cost-effective temperature monitoring.