Thermometer Type Selection
Thermometer Type Selection - Related Videos
01:46
Types of Selection
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2026
Natural selection influences the frequencies of particular alleles and phenotypes within populations in several different ways. Primarily, natural selection can be directional, stabilizing, or disruptive. Directional selection favors one extreme trait and shifts the population towards that phenotype while selecting against individuals displaying alternate traits. Stabilizing selection favors an intermediate trait with a narrow range of variation. Deviation from the optimal phenotype towards an...
08:44
Fabrication and Testing of Photonic Thermometers
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Cited by 1 •
2018
We describe the process of fabrication and testing of photonic thermometers.
01:22
Thermometers and Temperature Scales
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2023
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...
01:22
Gas Thermometers and the Kelvin Scale
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2023
The definition of temperature in terms of molecular motion suggests that there should be a lowest possible temperature, where the average kinetic energy of molecules is zero (or the minimum allowed by quantum mechanics). Experiments confirm the existence of such a temperature, called absolute zero. An absolute temperature scale is one whose zero point is absolute zero. Such scales are convenient in science because several physical quantities, such as the volume of an ideal gas, are directly...
06:48
Natural Selection - Concepts
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2019
Fitness Widespread variation of phenotypes in natural populations provides the raw material for evolution, which is the change in the inherited traits of populations over successive generations. Natural selection is one of the main mechanisms of evolution and requires variable traits to be heritable and associated with differential survival and/or reproductive success. Phenotypes that correlate with greater success will have more offspring that survive to reproduce in the next generation, and...
FAQs
Electronic thermometers use sensors that detect heat and convert the measurement into a digital value. Infrared thermometers instead estimate temperature from thermal radiation emitted by the patient, allowing measurement without direct contact. This difference affects how clinicians weigh speed, patient comfort, hygiene requirements, and the suitability of each device for a particular clinical situation.
Contact devices require placement against the patient, while noncontact infrared devices measure emitted thermal radiation without touching the body. The choice therefore involves more than convenience: clinicians should consider infection-control and hygiene needs, patient comfort, measurement speed, and the consistency required for assessing fever or hypothermia in the intended setting.
These factors determine whether a device can be used comfortably and appropriately while producing a clinically useful reading. A patient’s condition or age may affect tolerance of contact, the measurement site can shape device suitability, and the clinical setting may prioritize rapid assessment, hygiene, or repeated monitoring. Selection should balance these demands rather than rely on one feature.
First identify the patient’s condition, age, and intended measurement site, then define the clinical setting and the purpose of the reading. Compare available devices by sensing mechanism, contact requirements, speed, hygiene needs, ease of use, and expected accuracy. Finally, choose the option that best supports consistent assessment and the immediate monitoring need.
A noncontact infrared device may be considered when avoiding direct contact is important, when rapid measurement is valuable, or when patient comfort is a priority. Its role is especially relevant to settings where hygiene and cross-contamination risks require attention. Clinicians should still compare expected accuracy and the patient’s measurement circumstances before relying on the reading.
An appropriate device can provide temperature measurements that are more consistent with the patient, site, and clinical environment being assessed. Consistent readings support monitoring over time and can strengthen decisions related to recognizing fever or hypothermia, diagnosis, and treatment. Selection also helps align measurement speed, comfort, and hygiene with the demands of ongoing clinical care.