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Related Concept Videos

Temperature Measurement Sites01:14

Temperature Measurement Sites

3.8K
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

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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,...
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Thermometers and Temperature Scales01:22

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Any physical property that depends consistently and reproducibly on temperature can be used as the basis of a thermometer. For example, volume increases with temperature for most substances. This property is the basis for the common alcohol thermometer and the original mercury thermometers. Other properties used to measure temperature include electrical resistance, color, and the emission of infrared radiation.
As many physical properties depend on temperature, the variety of thermometers is...
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Liquid Temperature Measurements Using Two Different Tunable Hollow Prisms.

Sergio Calixto1, Martha Rosete-Aguilar2, Ismael Torres-Gomez3

  • 1Centro de Investigaciones en Optica, Loma del Bosque 115, Leon 37150, Mexico. scalixto@cio.mx.

Sensors (Basel, Switzerland)
|February 2, 2017
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Summary
This summary is machine-generated.

This study presents novel hollow prisms, including a grism for tunable spectroscopy and a Pellin-Broca prism for dispersive elements. These designs offer advanced applications in spectrometers and temperature sensing.

Keywords:
Pellin-Brocaconstant deviation prismgrismtemperature sensors

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Area of Science:

  • Optical Engineering
  • Spectroscopy
  • Sensor Technology

Background:

  • Hollow prisms offer unique optical properties for advanced instrumentation.
  • Tunable spectrometers and dispersive elements are crucial in various scientific fields.
  • Prisms can potentially be utilized for temperature sensing applications.

Purpose of the Study:

  • To design, fabricate, and test two types of hollow prisms: a grism and a Pellin-Broca prism.
  • To demonstrate the application of the grism as an on-axis tunable spectrometer.
  • To showcase the Pellin-Broca prism as a tunable dispersive element without moving parts and explore prism-based temperature sensing.

Main Methods:

  • Design and fabrication of a hollow prism with an integrated grating (grism).
  • Design and fabrication of a hollow Pellin-Broca prism for constant deviation.
  • Experimental testing of both prism configurations for spectroscopic and sensing applications.

Main Results:

  • Successful fabrication and testing of the grism, enabling on-axis tunable spectroscopy.
  • Successful fabrication and testing of the Pellin-Broca prism, demonstrating its utility as a tunable dispersive element with no moving parts.
  • Demonstration of hollow prisms' potential for temperature sensing.

Conclusions:

  • The developed hollow grism and Pellin-Broca prism are effective optical components for advanced spectroscopic systems.
  • These novel prism designs offer versatile functionalities, including tunable spectroscopy and dispersive elements without mechanical adjustments.
  • Hollow prisms present a promising avenue for developing new temperature sensing technologies.