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Temperature Measurement Sites

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...

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A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

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A miniature temperature high germanium doped PCF interferometer sensor.

F C Favero, R Spittel, F Just

|February 12, 2014

Summary

This summary is machine-generated.

This study presents a novel modal interferometer with high thermal sensitivity (78 pm/°C) using a short Photonic Crystal Fiber (PCF) stub. The device enables sensitive temperature measurements in both transmission and reflection modes.

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Area of Science:

Optics and Photonics
Fiber Optics
Sensing Technology

Background:

Modal interferometers are crucial for various sensing applications.
Photonic Crystal Fibers (PCFs) offer unique light manipulation properties.
High thermal sensitivity is desirable for precise temperature monitoring.

Purpose of the Study:

To develop a highly sensitive temperature sensor.
To utilize a short PCF stub with a shaped Germanium-doped core for interferometry.
To investigate the sensor's performance in both transmission and reflection modes.

Main Methods:

Splicing a short, shaped Germanium-doped PCF stub between standard optical fibers.
Exciting core and cladding modes within the PCF.
Utilizing the interferometric interaction between these modes for sensing.
Testing the device in transmission and reflection configurations.

Main Results:

Achieved a high thermal sensitivity of 78 pm/°C.
Demonstrated effective modal interference using a short PCF stub.
Confirmed consistent high temperature sensitivity in both transmission and reflection modes.

Conclusions:

The developed modal interferometer demonstrates excellent performance for temperature sensing.
The use of a short PCF stub offers a compact and efficient sensing solution.
The device's dual-mode operation (transmission/reflection) enhances its versatility.