Publication

Individually ventilated cages microclimate monitoring using photoacoustic spectroscopy

Luc Thévenaz, Stéphane Schilt, Jean-Philippe Besson
2004
Conference Papers

Abstract

A multi-gas photoacoustic sensor was developed In order to monitor microclimatic parameters at ppm level from the atmosphere of Individually ventilated cages housing mice. Ammonia, water vapour and carbon dioxide were measured on-line and in real-time during two weeks and 24 hours a day. The quality of bedding and the ventilation rate inside the cages has been monitored. The circadian activity level of these animals has then been observed.

Official source

https://infoscience.epfl.ch/entities/publication/6fbc4173-b920-4a4b-8298-2068d5670275

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Luc Thévenaz, Stéphane Schilt, Jean-Philippe Besson
2004
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/6fbc4173-b920-4a4b-8298-2068d5670275

About this result

Related concepts (32)

Circadian rhythm

A circadian rhythm (sərˈkeɪdiən), or circadian cycle, is a natural oscillation that repeats roughly every 24 hours. Circadian rhythms can refer to any process that originates within an organism (i.e., endogenous) and responds to the environment (is entrained by the environment). Circadian rhythms are regulated by a circadian clock whose primary function is to rhythmically co-ordinate biological processes so they occur at the correct time to maximise the fitness of an individual.

Ventilation (architecture)

Ventilation is the intentional introduction of outdoor air into a space. Ventilation is mainly used to control indoor air quality by diluting and displacing indoor pollutants; it can also be used to control indoor temperature, humidity, and air motion to benefit thermal comfort, satisfaction with other aspects of the indoor environment, or other objectives. The intentional introduction of outdoor air is usually categorized as either mechanical ventilation, natural ventilation, or mixed-mode ventilation (hybrid ventilation).

Passive ventilation

Passive ventilation is the process of supplying air to and removing air from an indoor space without using mechanical systems. It refers to the flow of external air to an indoor space as a result of pressure differences arising from natural forces. There are two types of natural ventilation occurring in buildings: wind driven ventilation and buoyancy-driven ventilation. Wind driven ventilation arises from the different pressures created by wind around a building or structure, and openings being formed on the perimeter which then permit flow through the building.

Related publications (11)

Individually ventilated cages microclimate monitoring using photoacoustic spectroscopy

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